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Greg Amy
09-25-2011, 09:09 PM
I was at the 2011 Runoffs, figured I'd offer a few notes.

- Congrats to your new champions, Scott Tucker in STO in a Porsche 996tt AWD, and Joel Weinberger in STU in an Audi A4 turbo AWD. Personally, I think the AWD aspect of it is purely coincidental, as both showed up with very well-built and well-driven machinery.

- Attendance was light but decent in STO. We had Scott Tucker in his "out the blue" 996tt entry, David Pintaric in a sexy-looking Viper ACRX, Joe Koenig in a "bad azz mofo" BMW M3, Jerry Onx in an "America f&&k yeah!" Corvette Z06, Gary Kachadurian in a BMW M3, and Marty Grand triple-dipping (T2, STU, STO) in his Evo IX. The top guys would have fit right in to the World Challenge GT class. Unfortunately, a first-lap incident sent Joe to the hospital with serious -- but fortunately not life-threatening -- injuries, and put Jerry on a flat bed, leaving Dave and Scott duking it out for the rest of the race. Congrats to Scott for a well-driven race, and our best wishes for a speedy recovery to Joe.

STO Final Results (PDF) (http://www.scca.com/assets/results/sto%20final.pdf)

- STU was a good field of "true" STU cars. Actually, I was even personally surprised at the depth of real STU cars and the relative dearth of double-dippers like Spec Miatae. I was also surprised at the appearance of Marc Hoover in a Mazdaspeed-turbo-powered Miata, taking advantage of our turbo table rules to run the smallest turbo inlet restrictor we allow (32mm), thus the lightest weight we allow (2200#!) Marc pedaled damn hard, but just couldn't keep pace with Weinberger in that WCT Audi A4; Joel just ran away with the STU championship. Congrats to the champ!

Behind them there was a SUPER battle for third between Marty Grand in his Evo IX, "Irish" Mike Flynn in his E46 M3, and another surprise of the weekend Eric Heinrich in his gorgeous Gulf-liveried E30 M3. Those three guys went hammer-and-tong amongst themselves; Marty eventually fell out with power steering failure and Mike had an unfortunate spin in T5, leaving Eric with a killer drive in the M3 to top out the podium. Behind them were many other good STU-quality rides, such as an Acura RSX, a Mazdaspeed MP3, a Mazdaspeed 6, and a Lexus Is300. It was a great field!

STU Results (PDF)
(http://www.scca.com/assets/results/stu%20final.pdf)
The CRB "Town Hall" meeting during lunch on Wednesday was fairly calm. Nothing new came from it, other than assurances to competitors that we're doing our best to minimize significant rules changes going forward, and that we'd REALLY like to get support on making STL a National class (get all your friends to double-dip in STL!)

We tried to put data boxes on the top-4 of each class. For various reasons, we didn't get a full compliment of results. Actually, I'm pretty disappointed in the results. But I appreciate the cooperation from the competitors, and we'll keep plugging away to ensure reasonable comparative parity.

It was a great time, and distinct pleasure to meet everyone!

Greg

red986s
09-26-2011, 09:12 AM
I was also surprised at the appearance of Marc Hoover in a Mazdaspeed-turbo-powered Miata, taking advantage of our turbo table rules to run the smallest turbo inlet restrictor we allow (32mm), thus the lightest weight we allow (2200#!) Marc pedaled damn hard, but just couldn't keep pace with Weinberger in that WCT Audi A4; Joel just ran away with the STU championship. Congrats to the champ!


I hooked up my PC to my TV to watch this race, it was great!

Watching Marc got me thinking (dangerous), I'd really like a crack at STL or STU. Any details on Marc's setup?

Greg Amy
09-26-2011, 10:36 AM
Any details on Marc's setup?
Nothing obvious, just looked like a nicely setup Miata with a big-power turbo engine. Marc is an engineer and a past DSR champion; I'd suggest it's a pretty well-done setup. - GA

CRallo
09-26-2011, 10:48 AM
I have an update on Joe Koenig for friends and fellow racers:

Direct quote from one of his daughters, who also races: "He will be fine. He's got a broken rib, 4 ribs are detached from the sternum, and 5 hairline fractures on the hip. He can't walk or do much on his own but the car saved his life."

And

"And his spirits are great"

Greg Amy
09-26-2011, 11:21 AM
That's great news. We were all very concerned about him Friday... - GA

JIgou
09-26-2011, 05:05 PM
That's great news. We were all very concerned about him Friday... - GA

x2

I saw the car ONCE via the online stream, and it was NOT good. The fact that the cameraman in that corner then went out of his way to not show anything during the FCY laps didn't help things.

bhudson
09-27-2011, 09:58 AM
Since the high profile televised fatalities of Dale Earnhardt and Greg Moore, most directors will not show replays of serious incidents during live telecasts.

Matt93SE
09-27-2011, 10:32 AM
What he said.
As an F&C worker, we're also told to keep any and all medical-related news off the radios, other than "driver OK" or "ambulance now". I'm sure the same goes for the TV crews.

Mrsideways
09-27-2011, 11:51 AM
Nothing obvious, just looked like a nicely setup Miata with a big-power turbo engine. Marc is an engineer and a past DSR champion; I'd suggest it's a pretty well-done setup. - GA

What was the motor out of. Mazdaspeed Miata's have a tiny turbo so I can't imagine that. I figured either a Turbo Rotary or a Mazdaspeed 3 motor... both of which would be fairly high dollar swaps, problem with the 3rd gen RX motors is then you have to use that messy twin turbo setup.

Greg Amy
09-27-2011, 11:58 AM
Mazdaspeed Miata engine. He asked for - and we gave him - an alternate turbo (see STCS "Alternate Vehicle allowances" table). The thought behind that is our weights for turbos are based purely on the size of restrictor that the competitor chooses to use, so giving alternate allowances for turbos should have minimal effect.

GA

Mrsideways
09-27-2011, 12:41 PM
Mazdaspeed Miata engine. He asked for - and we gave him - an alternate turbo (see STCS "Alternate Vehicle allowances" table). The thought behind that is our weights for turbos are based purely on the size of restrictor that the competitor chooses to use, so giving alternate allowances for turbos should have minimal effect.

GA

Uggh.

PSherm
09-27-2011, 01:33 PM
... and that we'd REALLY like to get support on making STL a National class (get all your friends to double-dip in STL!)


Greg

Sorry Greg, I find this a bit disturbing. We have too many classes as it is, and asking people to double-dip in STL just to get the numbers up is a disservice to the existing classes. Encourage people to build cars for STL - sure, but let it thrive/survive/die on it's own. Should be the nature of all classes.

Greg Amy
09-27-2011, 01:44 PM
...I find this a bit disturbing...too many classes...a disservice to the existing classes....let [classes] thrive/survive/die on [their] own....
I'm not going to get into long discussions on it, but you may be shocked to find that a lot of people agree with you -- and just as many disagree. This is a serious topic of conversation that got a lot of air time this past week* and something that the Board of Directors is addressing as we speak.

GA

* I had to literally laugh out loud numerous times this week when conversing on this subject. I found a direct correlation between any individual's position on this subject and the class they choose to race (or want to race), which itself has a direct correlation to that particular class's participation numbers...it got to the point that it was a game for us to predict in advance any one person's opinion(s) based on what event t-shirt their were wearing..."the more things change..." ;)

Mrsideways
09-27-2011, 01:51 PM
I'm not going to get into long discussions on it, but you may be shocked to find that a lot of people agree with you -- and just as many disagree. This is a serious topic of conversation that got a lot of air time this past week* and something that the Board of Directors is addressing as we speak.

GA

* I had to literally laugh out loud numerous times this week when conversing on this subject. I found a direct correlation between any individual's position on this subject and the class they choose to race (or want to race), which itself has a direct correlation to that particular class's participation numbers...it got to the point that it was a game for us to predict in advance any one person's opinion(s) based on what event t-shirt their were wearing..."the more things change..." ;)

I think a point could be made that there are some good classes that are going away purely due to the economy and that an effort should be made to let them survive so that the class can thrive again in a new and hopefully better coming economy and job market.

Greg Amy
09-27-2011, 02:08 PM
I think a point could be made that there are some good classes that are going away purely due to the economy and that an effort should be made to let them survive so that the class can thrive again in a new and hopefully better coming economy and job market.
Which was yet another source of LOLs during the daily Town Hall meetings...that "excuse" pretty much came exclusively from participants of those classes that are in danger of being "de-listed". To a "T" those in strong classes pronounce "survival of the fittest", and to a "T" those in weak classes talk about history, tradition, depth of opportunities in the Club, the bad economy, etc.

There's always an excuse for avoiding de-listing...and always an excuse for getting listed...it just ain't as easy as some folks think it is. I don't envy the BoD right now... - GA

Matt93SE
09-27-2011, 02:13 PM
There are ten million ways to build a race car and everybody wants to build it the way they want, then they want to be able to run up front. When they don't, they ask for rule changes. when they get them, the people that didn't ask for the change scream. When they don't get them, the people that asked for the changes scream.

It's a no-win situation trying to make everyone happy. Just ain't gonna happen.

Mrsideways
09-27-2011, 03:33 PM
Which was yet another source of LOLs during the daily Town Hall meetings...that "excuse" pretty much came exclusively from participants of those classes that are in danger of being "de-listed". To a "T" those in strong classes pronounce "survival of the fittest", and to a "T" those in weak classes talk about history, tradition, depth of opportunities in the Club, the bad economy, etc.

There's always an excuse for avoiding de-listing...and always an excuse for getting listed...it just ain't as easy as some folks think it is. I don't envy the BoD right now... - GA

I find it odd that the classes I see in trouble are the Cheaper to run classes (touring and SS). I think the economy has hit those that are barely able to race a lot worse then those running cars with enormous budgets. The Fear is when those that were barely able to race and currently Can't now are able to barely race again those cheap classes will be gone.

Greg Amy
09-27-2011, 03:52 PM
I find it odd that the classes I see in trouble are the Cheaper to run classes (touring and SS).
Two thoughts:

- First, SS and Touring ain't "cheap" by any means. Far from it. Start with an expensive new car and then spend a s**t-ton of money prepping, rebuilding, and blueprinting it. You'll spend as much money as, for example, a National Spec Miata effort.

And then do it over again when the next new car-of-the-year shows up.

- Second, most people tend to want to race a "real" car, not a street car.

The "cheapest" classes in the long run are those with consistent long-term rules, minimal mods, and competition active ongoing adjustments to avoid model obsolescence. SS and Touring only hit one of those.

GA

Mrsideways
09-27-2011, 04:36 PM
Two thoughts:

- First, SS and Touring ain't "cheap" by any means. Far from it. Start with an expensive new car and then spend a s**t-ton of money prepping, rebuilding, and blueprinting it. You'll spend as much money as, for example, a National Spec Miata effort.

And then do it over again when the next new car-of-the-year shows up.

- Second, most people tend to want to race a "real" car, not a street car.

The "cheapest" classes in the long run are those with consistent long-term rules, minimal mods, and competition active ongoing adjustments to avoid model obsolescence. SS and Touring only hit one of those.

GA

I look at SS and Touring as cheap, In SS you can always rip the cage out and sell it as a street car. Sure the rich start with new cars. The rest of us start with $500 salvage title jobs. For instance the Focus SVT we built for SS 2 years ago we bought the car, caged it, extra wheels and tires, brakes, clutch, flywheel, timing belt, and an oil change and were running side by side with that years runoffs winner for $4,870 on the track.
I'm hearing numbers from friends talking about buying a front running spec miata 3,4 and 5 times that number.
the other advantage is there's tons of em running around about to time out for dirt cheap.

TStiles
09-27-2011, 09:13 PM
[QUOTE= This is a serious topic of conversation that got a lot of air time this past week* and something that the Board of Directors is addressing as we speak)[/QUOTE]

Greg , Any insight into when the STL question will be communicated ?

red986s
09-27-2011, 09:35 PM
Greg , Any insight into when the STL question will be communicated ?

Greg you've got a bunch of guys salivating, wrenches in hand waiting for the go ahead to start that build.:D

Greg Amy
09-27-2011, 10:45 PM
Greg , Any insight into when the STL question will be communicated ?
Well to be clear, the "serious topic of conversation" I'm referring to is general overall idea of how the Club is going to handle National classification and de-classification, not STL specifically.

Specifcally, if you want STL to be National, now is the time to be writing letters to your BoD and CRB reps.

GA

TStiles
09-27-2011, 11:12 PM
just wrote my director

Matt93SE
09-28-2011, 01:57 AM
just wrote my director

.... which is going to change in the next few weeks. ;)

As Trey has mentioned, there's been lots of talk about STL around here, but nobody's jumping on that bandwagon because it's not a national class (yet).
I certainly wouldn't start building a car in hopes the class will be there when I'm done.

Chip42
09-29-2011, 12:23 AM
Mazdaspeed Miata engine. He asked for - and we gave him - an alternate turbo (see STCS "Alternate Vehicle allowances" table). The thought behind that is our weights for turbos are based purely on the size of restrictor that the competitor chooses to use, so giving alternate allowances for turbos should have minimal effect.

GA

Sorry I'm late to the party.

tGA, so basically you're saying the stock turbo rules are very much written in pencil because it doesn't really matter what hairdryer you use on account of the TIR? if you look behind you you will see that slippery slope.
car or engine intake, VW in a porsche, now this? but no JDM / no other swaped or open intakes.

ST is going to wind up speclined to death, if it makes it that far. STO I think is fine as it has ben stringently controlled from the git-go, but U and to a lesser degree (now) L are crazy. I am super excited about this class, but I think it has become too many things to too many people. it's a 2 headed cow with stripes when it should be a thoroughbred.

the category makes less sense every time I open this page

Edit: I know this class is suppose dot be more open and creative, it's the unbalanced allowances I don't understand

Z3_GoCar
09-29-2011, 02:32 AM
After watching these videos
http://www.youtube.com/watch?v=VvJk7U0mqRQ

http://www.youtube.com/watch?v=zw9YJCncRJ4

I've got to wonder if the top three, untill lap 10 were all turbo cars, is there a resize in TIR being considered?

Greg Amy
09-29-2011, 07:12 AM
...so basically you're saying the stock turbo rules are very much written in pencil because it doesn't really matter what hairdryer you use on account of the TIR?
Generally speaking, yes, that's the theory. We have an FIA chart that specs the TIR vs max airflow, and thus implies max power; in theory, we should be able to get turbo cars pretty close regardless of equipment on the vacuum side of the TIR.


... but no JDM / no other swaped or open intakes...I don't know why you guys keep beating this JDM horse, without sending any letters to anyone (we've gotten zero - ZERO - letters from anyone on this board about this issue). If you want this, make a case for it.

Right now we really want to keep the STU rules consistent for a while (as royal "you" have requested). At the same time, there's a rumbling undercurrent that maybe the future of STU is to allow aftermarket turbo additions as well as placing some basic performance-limiting parameters on cars (such as throttle body size, displacement, compression ratio, cam lift, etc) and letting people have their way. But note this is not in process nor is it currently under serious consideration! It's just a general mindset about the future of the class.

The Runoffs should illustrate to you that STU ain't no "let's take our IT car and go National Racing" kinda thing, unless your "thing" is just to participate. It's a serious tuner class, and will require serious commitment to win. Let's see how things shake out.


...is there a resize in TIR being considered?

(Your embedded videos are not working for me.)

Not at the moment. I spent most of my Runoffs week trying to get data acquisition on the top four cars in each class, and various issues with the hardware made it pretty much a flop. I have not yet reviewed the data I did manage to get (I'm still waiting to retrieve my laptop from its ride home from Wisconsin) but since I have so little it will NOT be used in any formal way for re-org of the cars.

GA

JS154
09-29-2011, 10:31 AM
After watching these videos

http://youtu.be/VvJk7U0mqRQ
http://youtu.be/zw9YJCncRJ4

I've got to wonder if the top three, untill lap 10 were all turbo cars, is there a resize in TIR being considered?

tyr them now, or cpy and paste the shortcut.

From what I have seen, the turbo and especially the turbo AWD cars are *rocketships* out of the corners.

FWIW, the Mits Evo was a T2 car with a smaller restrictor for STU. If that car was built to the limit of STU rules, I wouldn't be surprised if that car was capable of winning overall.

Weight definetely factors in as well - with the 3.2l cars being allowed next year, at 3500+ pounds, that will likely render them uncompetitive except for perhaps tracks like VIR or Watking Glen - the small wings (width and chord length) allowed will not create enough downforce to counteract the static weight forces.

Since aerodynamic resistance increses with the square of the the speed, and inertia/braking forces/stopping time and cornering forces also increases with the square of the speed - the weight plays a huge part in this. heavy cars aren;t going to make it, and cars that aren't powerful enough - Staal's Acura RSX for example - aren;t going to make it either.

A big NA engine will make power and torque, won't corner comparatively well, but can get up to high speed.

A small NA engine can make decent power, but no torque, and can handle quite well -see the RSX and the M3 for example - light weight can help with braking and ion the corners, but for the square ones, it takes torque to the ground to get out of them. the real small engines, say under 2.2 or 2.3L-ish - aren't going to make to power needed to get to the high speeds big tracks like RA, VIR, WGI or RdAm require.

Which brings us to the turbo cars. They make gobs of torque and enough power that it's a clear advantage. The AWD turbo cars can put it all down early, and in traffic, fighting/defending for position or on square corners, that's a huge advantage.

The reality is the class is built around a DISPL/WT and TIR/WT scale....but in the real world, it really is a torque curve to weight solution to win. The high revving NA cars that handle great can do well and be fast when they get a clean run through the corners -fast corners especially, but yousquare them off, add traffic or a position battle, and the lack of torque is a distinct disadvantage.

This is in the dry of course. In the wet, AWD will rule, especially sophisticated AWD systems like that on the EVO - which is not meant to take away anything from Marty Grand's accomplishments, who has shown to be an exceptional driver.

Z3_GoCar
09-29-2011, 10:46 AM
Fixed it....

Marc's Miata is in it's first season, so I'm sure he's got more speed to find there. I understand your reluctance to changing the TIR size as it should limit peak hp as predicted.... but.... Then you add in AWD and distribute the power between four wheels, and the wheel size limits aren't as applicable. For reference look what the AWD "boost buggies" have done to the Solo ST classes, and now they've been taken out of some classes for two wheel drive chassis to have a shot.

Greg Amy
09-29-2011, 10:57 AM
These are all points worthy of consideration. If you've got something you'd like to put together for us to consider on how to manage this, do please put it in a letter and send it to us (as "JS154" has promised he would do.)

Speaking of which, in case you didn't know, "JS154" is none other than Eric Heinrich, driver of that sweet Gulf-liveried E30 M3 and our Runoffs STU Bronze Medal winner. - GA

http://i1201.photobucket.com/albums/bb345/GregAmy99/Misc/10STU.jpg

Z3_GoCar
09-29-2011, 11:00 AM
I do know that, because I'm also Z3_Racer701 on Bimmerfourms. I also remember the article about Eric's car in the BMWCCA's Rondel several years ago.

JS154
09-29-2011, 11:08 AM
Fixed it....

Marc's Miata is in it's first season, so I'm sure he's got more speed to find there. I understand your reluctance to changing the TIR size as it should limit peak hp as predicted.... but.... Then you add in AWD and distribute the power between four wheels, and the wheel size limits aren't as applicable. For reference look what the AWD "boost buggies" have done to the Solo ST classes, and not they've been taken out of some classes for two wheel drive chassis to have a shot.

Limiting the AWD cars to a max tire width of 225 would help level that playing field. They were all running 245/40/17's at the Runoffs - on an 8" rim that's 1" more contact patch width per wheel on the ground compared to a 225.

Marc said many times he dropped that engine in just before the runoffs with no testing and had never been to RdAm before. Kudos to him for thinking up a brilliant combo of weight/shassis/engine/aero.... so fast through and out of the corners, but not enough top end to stay with the Audi at RdAm. Put that car at a track like Mid-O and he would have checked out.

edit:insert>
My understanding was (not 100% sure):

The Audi was running at 2935#/37mm
The Miata was running at 2200#/smallest resitrictor (i think 27mm?)
The Evo was running at 3400#+, 40mm restrictor

Nothing was touching the turbos through and out of the corners.

JS154
09-29-2011, 07:24 PM
At the same time, there's a rumbling undercurrent that maybe the future of STU is to allow aftermarket turbo additions as well as placing some basic performance-limiting parameters on cars (such as throttle body size, displacement, compression ratio, cam lift, etc) and letting people have their way. But note this is not in process nor is it currently under serious consideration! It's just a general mindset about the future of the class.


GA

I don't like the sound of that at all. The turbo cars need no help whatsoever. At the same time those limits - tb size, comp ratio,cam lift...without allowing non-USDM engines - will all have a significant impact on the NA cars.

if the ultimate goal is to have the class develop into a *turbo* class, then yes, those would be appropriate cahnges. But if the idea is to have a *varied* class, then it needs to go the other way around.

All that said, I do feel compelled to say that the STAC and the BOD so far has done a pretty darn good job of balancing the class, given how much there is to balance...RWD, FWD, AWD, combined with NA and FI, combined with small displacement/TIR/light weight vs large displacment/TIR/heavy weight.... no easy task by a long shot, and to be this close in only the second year of the class is a remarkably well done job. With the exception of the turbo and especially turbo AWD cars, there's not much that needs to be done, except perhaps make some allowances for the RSX-S and S2000 to be truly in the game, which IMHO they should be and I would support.

mgrand34
10-02-2011, 08:13 PM
I came across this forum while browsing the Internet :). Couple thoughts after reading some comments on here. First the idea of my heavy Evo running on 225s is absolutely crazy. It would be lucky to score a top 10 finish in STU. The Evo weighs more than 500 pounds more than the BMWs, To put the Evo on 225 tires would be like putting the BMWs on 185mm tires. Also, RWD out handles AWD every time unless youre going slow enough that the rear tires will spin under acceleration.

Im not sure Ill run this class again since the rules are soley based on power to weight with no consideration for less weight= better handling and less weight=better braking and less weight=better tire and brake wear. My Evo was running a 39mm restrictor and was in basically a dead heat down the straight with the BMWs (watch laps 1 and 2). The only advantage I could see was tight corner exits like Turn 5 and 8 but I was getting eatin up in every other corner and brake zone on the track. And no, aero would not make up for 500 pounds of dead weight.

Greg, Ill repeat what I said at the RO's, I think there should be a curve to allow heavier, less handing and braking cars more power per pound. That said I think the only good race in STU was for 3rd place, we were running identical lap times fighting hard for the podium. If the top couple cars were pulled back 2 second per lap it would be an epic 6 car battle just how the cars sit.

Also keep in mind that in 09 I was on the T2 pole and set the track record in the race and reset the T2 track record in 2010 and yet was no faster than 2 first time drivers at RA in STU in their BMWs this year. Give Eric and Mike another year at RA and they will certainly pick up time just by learning the track.

It was suggested to me that the Audi is the "standard for STU" welllll there is no way that most of us can build a car to the level of the Stasis Audi. Thats like a 200k build. My car is a 40k build including the price of the car, cage, struts etc..

I realize my main class is T2 and only ran STU because I thought it was another class that my car could compete in, If I feel I cant compete than I will just stick to T2. If I were on the STU CRB I would be concentrating on figuring out a way to get the 3-6place cars closer to the 1st and 2nd place cars and not just picking on the "awd turbo" cars. To me this is like saying all NA cars should have X or all RWD cars should have X.

It was great racing with you Eric and congrats on your podium, you drove a really good race.

Marty

JS154
10-02-2011, 08:51 PM
Hey Marty, Eric here - here's a hearty congratulations to you on your win again in T2 and it was great to race with you - You're a heck of a driver and I'll race with you anywhere, anytime. Well maybe except for in the rain. :-)

FWIW, this was not my first time at RdAm - I was there a year ago with the BMW Club and was able to get in a few hours of testing there, so I had some pretty good data and experience to start with. That said, RdAm isn;t the hardest track to learn, certinaly not like Mid-O, and Hoover said he had never been there, but he's got a *lot* of experience..... Also, I did have Seth Thomas (Bimmerworld Pro driver) co-drive my car then, and we were within hundredths of seconds witin each others sector times and 10ths of mph's in top and corner apex speeds.

So we built nearly to the limit of the rules - and went there with expectations of being able to win, not to be 2 seconds plus off the pace (Joel did a 27.2 IIRC in practice on Sat) in the race he was over 2 seconds faster than our whole group, and that was without serious pressure to push the limits. What little more we vould do would be astronomical in cost for fractional gains at best, to the point it would be better to sell and build a different car.

So my understanding is your car is a T2 car, with an STU restrictor....but what is the performance potential for and Evo (Or an STI, Or R32, or next years BMW Z4 x-drive 4cyl turbo) when built to the limit of the STU rules? we're talking full build, cams compression, exhaust, coatings, sequential, MoTeC/ADL/trans controller, relocated suspension geometry, full splitter and lower drag wing....

I think you are right, weight is a huge factor - next year when the 3.2l engines are allowed, the S54 BMW engine is easily capable of 400 hp, and stock revs to over 8000 rpm...but the car will have to run at over 3500# - that's appx 600# more than the STaSIS Audi.

I think the class is mostly close, but the following need addressing:
-the small displacement N/A cars I understand are having a hard time reaching their min weight, AND they don;t have the displacement to make the power to get to the high speeds needed at tracks like RA, RdAm, VIR, WGI etc
-The large displacement NA cars are going to have a weight issue next year already
-turbo AWD cars have a huge torque and traction advantage.

As for the budget - I think, as Dorsey mentioned in his broadcast - something should be done to cap outright expenditures - such as a heavier weight penalty for sequentials, but from what I understand, this class is not intended to be a low or even moderate budget class - it is Super Touring, and the rules allow building to a level along the lines of BTCC, WTCC, the old Euro Super Tourers and even the early Gruppe A cars from the late 80's - no small change by a long shot. And personlly I think that's a mistake. We already have those series in the US, it's called Speed World Challenge and GAC. I think it would be wise to submit a letter to the CRB about the costs, which if restrained, will enable more people to play, be competitive, and make for larger fields. That STaSIS Audi - there's a lot more into it than that, same for the Tindol Mazda.

Marty, in your case - a T2 car - perhaps an allowance such as the IT cars have - "T2 cars may enter under their T2 ruleset, with the exception of (? wheel size/rim width/TIR size/weight chart etc?)" dunno just brainstorming here, but maybe something like that.

Again, great racing with you and congrats on your second Runoffs Championship - to do it back to back, and with the weather/tire choice/driving gamble you had to make this year, that's pretty damn impressive.

EH

mgrand34
10-02-2011, 10:57 PM
Hey Eric,
The power increasers you mentioned would really do nothing to help me as long as I have a TIR. I have the best tuner in the US for Evo Tuning and even running Motec would do basically nothing for me as long as I run the TIR. I really lose so much power its crazy and it really chops off my top end (you can only get so much air though that hole no matter what you do and believe me, Im maxed out). BTW, the open turbo rule in STU wouldnt help me at all, I couldnt put a bigger turbo on since it would actually hurt my power, if anything Id go smaller to match the TIR.

From T2 to STU I put in the smaller restrictor (from 41mm to 39mm)and pull 210pounds out of the trunk and put on smaller wheels.

Only issue I have is that they have done a great job of equalizing the power to weight among the top 6 cars, I could be wrong but it sure looked like I would out accelerate you out of 14 but then you pulled me on the top end. So any Evo power advantage has been taken care of via the TIR. Watching me and Mike come out of 5 he was right on my heels the whole way up the hill, that is the sharpest corner on the track and my awd and turbo could not overcome his weight advantage, I actually thought Id pull him but was surprised I wasnt able to. There is no way my car can handle and brake with the light cars and if I dont have straight line speed advantage then the way I look at it is:
BMW vs Evo in braking = Advantage BMW
BMW vs Evo Handing = Advantage BMW
BWM vs Evo Speed = Draw

It's just tough when you dont have one advantage over your competitors in the 3 areas that count handling, braking, speed.

Would a Seq gear box help? yes but I will not pay 12k for a dogbox for my car.

Would aero help? Im not so sure at RA, its a high speed track and I actually took my wing off to gain a mph or two. I talked to my main sponsor who runs at RA often in a professionally set-up downforce equipped evo and they said with my power levels it would likely slow me down (increase my lap times) from the additional drag.

Id love to get down to the Audi's weight but Evo's are heavy rally cars and Ive stripped it to the bone. It has an alum roof, fenders and hood already, all lighter than carbon fiber. If I replaced the doors and trunk with carbon I could drop about 100 pounds-this would cost me roughly 10k and still I wouldnt be close to the Audi's weight.

But really although I think STU has great potential, this is an additional class for me and if the rules are favorable I will run with you guys, if not then Ill play exclusively in my T2 sandbox. But unless something is done to the Audi, everyone else is racing for second on down. If the CRB was taking my advice, Id ask for my 41mm restrictor back and run at 3300 pounds. Id still lose the braking and handling war, but atleast id have some poop down the straights :)

Take care and great racing with you Eric, it was good to see you up there on the podium! Oh and I very much appreciate the congrats on T2.

Greg or Eric, if you ever want to discuss; my email is [email protected] email me and Ill give you my number.

Marty

mgrand34
10-03-2011, 10:30 AM
I was thinking about how to even a class with such open rules in comparison to the Touring rules. If the car is full of Pro cars why not have Pro type of rules such as penalty weight to even up the cars? The downside is that the Runoffs is a winner take all one race to decide the champion, unlike Pro series that accumulate points towards a championship. Basically, people could take it easy all season and unleash at the Runoffs. At least it would be a way to adjust cars from one Runoff to the next.

Just thinking out loud,

Marty

Greg Amy
10-03-2011, 11:14 AM
If the car is full of Pro cars why not have Pro type of rules such as penalty weight to even up the cars?
We, effectively, have that Marty: if someone wants to build a car to the World Challenge VTS, they get a 5% penalty. The reason we do that is because some of the specs in WC exceed the prep level of our STU rules (e.g., too much compression).

However, there's nothing to keep someone with deep pockets from spending the same amount of money to build an STU-spec car to the same level of prep. I can, for example, walk up to PD Cunningham, who would be glad to take my 6-figure check to me me a championship-winning Acura TSX that meets each and every point of the STU rules.

You just can't legislate how much people can spend.

On the other hand, if you think the prep level is too high, then the solution is to either reduce the prep level (unlikely, given the philosophy of the class) or convince the CRB to add higher weight penalties for specific allowances, like what we do for moving pickup points and for sequential gearboxes.


Basically, people could take it easy all season and unleash at the Runoffs.
Exactly what happened last year. The 2010 STU champion qualified for the Runoffs in a BMW Z4 (SSB?) and then rented a RealTime Acura TSX for the Runoffs. Pretty smart strategy...

Mrsideways
10-06-2011, 02:35 PM
Generally speaking, yes, that's the theory. We have an FIA chart that specs the TIR vs max airflow, and thus implies max power; in theory, we should be able to get turbo cars pretty close regardless of equipment on the vacuum side of the TIR.


GA

Greg, where can one find the FIA TIR chart? I tried Googleing it but came up with nothing.

JS154
10-07-2011, 10:26 AM
Perhaps this? certainly not a linear 135# per 1mm TIR diameter increase, much more specific. Not being an engineer I'm not sure how it comapres to the current chart/grid being used but it may be worth considering.


http://argent.fia.com/web/fia-public.nsf/272D84106623EFBBC1257917003C23DE/$FILE/252%20(11-12)-23.09.2011.pdf


Article 252 - 2011
Prescriptions Générales pour les
Voitures de Production (Groupe N), Voitures de Tourisme (Groupe A),
Voitures de Grand Tourisme (Groupe B)
General Prescriptions for
Production Cars (Group N), Touring Cars (Group A),
Grand Touring Cars (Group B)


3.3 Equivalence formula between reciprocating piston and
turbine engines
The formula is the following:
S(3.10 x R) - 7.63
C = ---------------------------
0.09625
S = High pressure nozzle area - expressed in square centimetres
by which is meant the area of the airflow at the exit from the stator
blades (or at the exit from the first stage if the stator has several
stages).
Measurement is done by taking the area between the fixed blades
of the high-pressure turbine first stage.
In cases where the first stage turbine stator blades are adjustable,
they must be opened to their greatest extent.
The area of the high-pressure nozzle is thus the product of the
height (expressed in cm) by the width (expressed in cm) and by the
number of blades.
R = The pressure ratio is the ratio of the compressor of the turbine
engine.
It is obtained by multiplying together the value for each stage of the
compressor, as indicated hereafter:
Subsonic axial compressor: 1.15 per stage
Trans-sonic axial compressor: 1.5 per stage
Radial compressor: 4.25 per stage.
Thus a compressor with one radial and six axial subsonic stages
will be designated to have a pressure ratio of:
4.25 x 1.15 x 1.15 x 1.15 x 1.15 x 1.15 x 1.15 or 4.25 x (1.15)6.
C = Equivalent cubic capacity for reciprocating piston engines in
cm3.

DoubleXL240Z
10-08-2011, 08:44 PM
::017: Just had an idea/brain fart?!?!?
Eric, what do you think about a 325iX, with an S14 and M3 body work????:shrug::happy204::smilie_pokal:?

Greg Amy
11-28-2011, 10:53 AM
Koenig Thankful To Be Making Racing Plans



TOPEKA, Kan. (November 22, 2011) – During the week of Thanksgiving, SCCA member Joe Koenig, of Glenview, Ill., has a long list of things to be thankful for.

Running in the STO race at this year’s SCCA National Championship Runoffs at Road America, Koenig was tapped on the opening lap in his No. 70 DrywallArt.com/Hoosier/Fall-Line BMW M3 going through Canada Corner. While spinning, he was t-boned by a different driver with nowhere to go in an accident that looked serious from the start.

It was.
...
http://www.scca.com/news/index.cfm?cid=50887

CRallo
12-09-2011, 04:04 PM
You beat me to it! And I've spoken to him... He is indeed doing well!

mgrand34
02-28-2012, 12:06 AM
If anyone has Eric Heinrichs email can you send it to me or give him mine. [email protected]

Thanks,
Marty