December Fastrack is out!

[Andy Bettencourt]

In hind sight I'd have pushed (although I have zero influence) to keep the 325 in ITS at the correct weight, about 2800-2900 lbs, and left it out of ITR entirely. Heavy (relatively, but still very racable) in S would have only affected the BMW, but light in R limits the R class.

Try 3170lbs in ITS.

[Ron Earp]

Try 3170lbs in ITS.

Aren't you on a call?

Really, that high? I've not done the arithmetic for a few years but that seems a bit excessive, especially when considering the weight people wanted to put on the car years ago and "only" end up at 2900 lbs, without restrictor. Man, people were way more wrong than they thought.

3170 in S or 26XX in R? 500lbs difference?

[Andy Bettencourt]

Aren't you on a call?

Really, that high? I've not done the arithmetic for a few years but that seems a bit excessive, especially when considering the weight people wanted to put on the car years ago and "only" end up at 2900 lbs, without restrictor. Man, people were way more wrong than they thought.

3170 in S or 26XX in R? 500lbs difference?

2765 in ITR and 3170 in ITS using the same projected hp levels. Just a difference in power to weight targets of the two classes.

[Z3_GoCar]

Aren't you on a call?

Really, that high? I've not done the arithmetic for a few years but that seems a bit excessive, especially when considering the weight people wanted to put on the car years ago and "only" end up at 2900 lbs, without restrictor. Man, people were way more wrong than they thought.

3170 in S or 26XX in R? 500lbs difference?

Then where does this leave my 189hp car that's saddled with the weight of the follow on 194hp brother? Seriously, they're different blocks heads and intake manifolds, the only thing I can use between them is the head bolts. If you can tell it's a different motor just by opening the hood, shouldn't they be on a seperate spec line? Given that the VIN rule's no longer applicable, you'd think the motor is what determines the cars weight...

[JoshS]

Then where does this leave my 189hp car that's saddled with the weight of the follow on 194hp brother? Seriously, they're different blocks heads and intake manifolds, the only thing I can use between them is the head bolts. If you can tell it's a different motor just by opening the hood, shouldn't they be on a seperate spec line? Given that the VIN rule's no longer applicable, you'd think the motor is what determines the cars weight...

James, write a letter, we'll see what we can do.

For those who are wondering, the '97-'98 Z3 2.8 used the E36 328i motor (189hp), but the '99-'00 Z3 2.8 used the E46 328i motor (193hp), which is a different engine, albeit the same bore/stroke.

[JeffYoung]

I agree, should be a separate spec line.

Not a significant difference in weight (60 lbs), but enough. Plus the line is just wrong.

James, write the letter and we will try to correct.

[lateapex911]

yea, we gotta fix that. THAT is an error! Whoo hoo!

[JeffYoung]

A real one!

But wait, Josh is right...no errors and omissions clause in the GCR....lol.....

[GKR_17]

For those who are wondering, the '97-'98 Z3 2.8 used the E36 328i motor (189hp)

Minor yes, but the early 2.8 liter engine is lsted at 190hp from the factory. The later aluminum block, double VANOS is listed at 193 stock. The original ITR proposal listed the stock power as 189, but back-calculating it appears the input was 191.

[Z3_GoCar]

Minor yes, but the early 2.8 liter engine is lsted at 190hp from the factory. The later aluminum block, double VANOS is listed at 193 stock. The original ITR proposal listed the stock power as 189, but back-calculating it appears the input was 191.

Grafton,

You went for the iron block hp rating not the aluminum block introduced in 1997 not 1995.

http://en.wikipedia.org/wiki/BMW_M52 and http://en.wikipedia.org/wiki/BMW_Z3

Josh and I have discussed this in the past. I guess what changed is the relization that the car is classed based on the motor not the VIN, and if the motor "is" different enought that you can tell by an open hood then the weight should be too. (I always thought the 50lb on the e-36 and 100lbs on the e-46 328 was because of the trailing arm/multi-link rear suspensions.) So then the max my car should weight is at least the 2765 (that's still 35lbs less lead than I'd have to put in it) that the 325 weights.

[JoshS]

James is right. I should have mentioned that the '97-'98 Z3 wasn't exactly the same as the E36 328i ... the Z3 has an aluminum block version of the same motor (same internals, same head, same intake, etc.) but was rated 1hp less than the iron block version.

[robits325is]

Try 3170lbs in ITS.

How can it be so high? At that weight the 325 wouldn't even have a chance against the RX-7.

[JeffYoung]

It has between 30 and 40 more wheel horsepower.

[Andy Bettencourt]

How can it be so high? At that weight the 325 wouldn't even have a chance against the RX-7.

170lbs more than your car Rob, and how much more power?