Intake Restrictor?

[MikeBlaszczak]

Who's making the Intake Restrictor that's now required for the E36 cars?

[Joe Harlan]

Who's making the Intake Restrictor that's now required for the E36 cars?
[/b]

Raetech is the one that I would buy if I was buying one. Look in the pissing match thread and you will find URL's

[dj10]

Raetech is the one that I would buy if I was buying one. Look in the pissing match thread and you will find URL's
[/b]

Mike,
I concur with Joe, get it from Raetech.

[mlytle]

you can get just the sir from raetech now and figure out the install, or you can wait a month while bimmerworld tries to figure out an sir "solution".

[Joe Harlan]

you can get just the sir from raetech now and figure out the install, or you can wait a month while bimmerworld tries to figure out an sir "solution".
[/b]

Pleasse explain what majic bullet you think Bimmerworld is gonna come up with here? I am really curious what you think they are gonna find. Have any of you guys read the information on how an SIR works? Don't wait get the unit and install it. best case is somebody may come up with a 1 or 2HP gain BIG DEAL get it in the car and start testing the main thing your gonna need is seat time to work out how the lower peak power is gonna effect you. NOTHING Bimmerworld or anyone else can do will make up for seat time.

[buldogge]

Joe...

It's not just the restrictor itself...it's the clean implementation of it along with filtration/HFM/etc. into our intake tract.

Our space is severely limited with twists and turns from the OE intake position to the TB.

If we didn't need filtration it would be SIMPLE to implement the SIR...but...we do...so...it ain't.

Pleasse explain what majic bullet you think Bimmerworld is gonna come up with here? I am really curious what you think they are gonna find. Have any of you guys read the information on how an SIR works? Don't wait get the unit and install it. best case is somebody may come up with a 1 or 2HP gain BIG DEAL get it in the car and start testing the main thing your gonna need is seat time to work out how the lower peak power is gonna effect you. NOTHING Bimmerworld or anyone else can do will make up for seat time.
[/b]

[MikeBlaszczak]

Joe...

It's not just the restrictor itself...it's the clean implementation of it along with filtration/HFM/etc. into our intake tract.

Our space is severely limited with twists and turns from the OE intake position to the TB.

If we didn't need filtration it would be SIMPLE to implement the SIR...but...we do...so...it ain't.
[/b]

Indeed. A turnkey solution would be really cool, since I'm just a driver and not a race engineer.

The Raetech part looks like it's about 6.9 inches overall, though I suppose I'll eat about 0.75 inches on either end by inserting that into the hose. I guess I can get a couple of short sections of silicone tubing to get everything hooked-up, and put the SIR between my cone air filter and the MAF.

Is the part aluminum? Or hard rubber?

[buldogge]

Hey Mike... The part is made from 6061 aluminum alloy and can also be had with a bellmouth end at 5.7" or such (tech drawing on the website).

Ideally, I would like the SIR to feed a voluminous airbox which feeds the HFM...space is the problem as well as the entry angle from the stock intake position by the rad however.

Indeed. A turnkey solution would be really cool, since I'm just a driver and not a race engineer.

The Raetech part looks like it's about 6.9 inches overall, though I suppose I'll eat about 0.75 inches on either end by inserting that into the hose. I guess I can get a couple of short sections of silicone tubing to get everything hooked-up, and put the SIR between my cone air filter and the MAF.

Is the part aluminum? Or hard rubber?
[/b]

[ed325its]

Joe,

I hesitate to respond since the prior few posts took the conversation over the top and well beyond any level I would prefer. However, the point I would make is that you should not berate a poster for suggesting that Bimmerworld,or any other vendor, would have a turn key solution soon. I, and I am sure many of us, are not engineers or have degrees in hydrodynamics. I am a racer and a businessman. I would much prefer to wait for turnkey solutions that have been engineered and tested on an E36 ITS car than to purchase an SIR and strike out on my own. I have many questions concerning the optimum placement and installation that are beyond my knowledge and experience. I welcome here any opinions and/or knowledgable truths to the following questions concerning the optimum SIR design and installation (and yes, given the choice, 1 or 2 horsepower is important, especially if I am spending the same amount of money):

1. Where in the intake track should the SIR be placed in relation to the air filter, MAF,and TB?
2. What is the optimum distance from the TB? (I know, its a redundant question.)
3. Should the installation include an airbox?
4. Of so, what size, dimensions, and placement?
5. With a free intake, what should the materials and dimensions be of the intake? (I personnally believe the rule change to allow a non-stock intake was a prelude to the SIR. This is not a conspiritorial claim, only giving credit to the CRB for forethought.)
6. What is the best location and air draw point for the SIR?

I am sure I will have more questions as I learn more about the SIR. I did see your genuine offer to assist in the engineering and testing and hope you will not withdraw that offer in spite. If I were close to your shop I would give it serious consideration. But in Maine, I'm not close to anything but snow and the snowmobile trails.

To all of my fellow racers, lets make this thread a positive thread concerning the SIR and leave the arguements, both pro and con, for discussion elsewhere.

Thanks,

[Joe Harlan]

Joe,

I hesitate to respond since the prior few posts took the conversation over the top and well beyond any level I would prefer. However, the point I would make is that you should not berate a poster for suggesting that Bimmerworld,or any other vendor, would have a turn key solution soon. I, and I am sure many of us, are not engineers or have degrees in hydrodynamics. I am a racer and a businessman. I would much prefer to wait for turnkey solutions that have been engineered and tested on an E36 ITS car than to purchase an SIR and strike out on my own. I have many questions concerning the optimum placement and installation that are beyond my knowledge and experience. I welcome here any opinions and/or knowledgable truths to the following questions concerning the optimum SIR design and installation (and yes, given the choice, 1 or 2 horsepower is important, especially if I am spending the same amount of money):

1. Where in the intake track should the SIR be placed in relation to the air filter, MAF,and TB?
2. What is the optimum distance from the TB? (I know, its a redundant question.)
3. Should the installation include an airbox?
4. Of so, what size, dimensions, and placement?
5. With a free intake, what should the materials and dimensions be of the intake? (I personnally believe the rule change to allow a non-stock intake was a prelude to the SIR. This is not a conspiritorial claim, only giving credit to the CRB for forethought.)
6. What is the best location and air draw point for the SIR?

I am sure I will have more questions as I learn more about the SIR. I did see your genuine offer to assist in the engineering and testing and hope you will not withdraw that offer in spite. If I were close to your shop I would give it serious consideration. But in Maine, I'm not close to anything but snow and the snowmobile trails.

To all of my fellow racers, lets make this thread a positive thread concerning the SIR and leave the arguements, both pro and con, for discussion elsewhere.

Thanks,
[/b]

ED , I am sorry if thats how that was taken it ws not meant to be. The point I was stressing is do some home work and you will see that as far as flow goes you will have a hard time out flowing this design. I did not mean to come off as it looks like it was taken in my response to you. As far as my last post goes Iwill stand by it. I like anyone else give what I get.

Mike, The picture I posted looks as though you could put the SIR inside a cone type filter and connect both to the end of your existing intake pipe. This would allow all air to be filtered and you could pull the airfilter off for the kill test in impound.

[MikeBlaszczak]

ED , I am sorry if thats how that was taken it ws not meant to be. The point I was stressing is do some home work and you will see that as far as flow goes you will have a hard time out flowing this design.[/b]

We are doing our homework, Joe -- it's just that we prefer to do our homework together. Many hands make lighter lifting, and if I can learn from or with someone else, it's a more enjoyable experience. Forums like these facilitate the experience. If you'd like to help, we'd love to hear from you. But would be lots easier to listen if you weren't so hostile.

Mike, The picture I posted looks as though you could put the SIR inside a cone type filter and connect both to the end of your existing intake pipe. This would allow all air to be filtered and you could pull the airfilter off for the kill test in impound.
[/b]

Ah, I see; that's an interesting plan. Does the bell unscrew from that end of the SIR? The explosion diagram implies that it does, but none of the drawings show threads on any of those surfaces.

The cone filter I run has a steel base and I'm pretty sure it's glued to the foam of the filter. It slips into the intake air pipe and fastens with a pipe clamp, then just hangs there. I can get some Samco silicon tube and a bend, and make it shorter--or maybe use a 45-degree elbow and let the length of the restrictor do the rest of the distance.

But I don't see how I'd fasten the filter to either the bell end or the hose end; the aluminum filter won't deform and seal in a pipe clamp, and the bell end can't be fastened to the steel base of the cone filter.

Maybe I'll end up with a three-inch coupler between them. I'll have to take some measurements when the car comes back from the body shop tomorrow.

Originally posted by zchris

the way he pushes Finches product.

If you'd care to recommend another supplier, Chris, I'm all ears.

[Joe Harlan]

We are doing our homework, Joe -- it's just that we prefer to do our homework together. Many hands make lighter lifting, and if I can learn from or with someone else, it's a more enjoyable experience. Forums like these facilitate the experience. If you'd like to help, we'd love to hear from you. But would be lots easier to listen if you weren't so hostile.
Ah, I see; that's an interesting plan. Does the bell unscrew from that end of the SIR? The explosion diagram implies that it does, but none of the drawings show threads on any of those surfaces.

The cone filter I run has a steel base and I'm pretty sure it's glued to the foam of the filter. It slips into the intake air pipe and fastens with a pipe clamp, then just hangs there. I can get some Samco silicon tube and a bend, and make it shorter--or maybe use a 45-degree elbow and let the length of the restrictor do the rest of the distance.

But I don't see how I'd fasten the filter to either the bell end or the hose end; the aluminum filter won't deform and seal in a pipe clamp, and the bell end can't be fastened to the steel base of the cone filter.

Maybe I'll end up with a three-inch coupler between them. I'll have to take some measurements when the car comes back from the body shop tomorrow.

If you'd care to recommend another supplier, Chris, I'm all ears.
[/b]

Mike , Have at it. There is no intentional hostility coming from me other than taking crap and being told I don't know anything. All I was trying to do was help with the process, The one thing I will agree on is the notice was a bit short. I have worked on plumbing for these in te past and was doing nothing more than trying to share. I will be doing no more of that. If you would like your car plumbed for an SIR my shop can handle it. Time and materials to do the job. I will even take the car to the chassis dyno afterward. Dyno fees and my fees apply.

http://www.cdamachine.com/sir.htm is another manufacture of the SIR. I believe you could machine your own to fit also. The one last thing I do know and will share is this. You will not get any better flow than what a 27mm engineered SIR can flow. But a poorly built one will loose more power than a properly built one. I have seen actual results from the raetech piece compared to a couple of lesser units and that is why I suggested the reatech part. Second reason is it is a 3 piece design so once you own it you only would ever need to replace the insert (like 100bucks) rather than the whole unit

[dj10]

All I was trying to do was help with the process.
[/b]

Guys don't shoot Joe, he's only the piano player.
I believe him, chill out and give him a break.
As for where to buy the SIR, who gives a rats ass. Buy where you want, if you can test now buy from anyone who has it now, if not wait until your favorite retailer gets them. Who cares, do what you want.hehe
dj

[zchris]

You bimmer guys, watch out for Joe. I think Dave F and him must be buddy butt plugs the way he pushes Finches product.

[lateapex911]

You bimmer guys, watch out for Joe. I think Dave F and him must be buddy butt plugs the way he pushes Finches product.
[/b]

C'mon Chris, take the higher ground...

I think the only thing Joe is pushing is a picture of what he thinks an SIR will do. If I were near him, and had an E36, you bet I'd take him up. I always think that I can learn something, and I am sure it would be an educational experience, at the least.

The main benefit the Raetech unit has, from what I understand, is the ability to change the actual neck size (27mm) without having to reinvest in an entirely new peice. But, maybe the others cost half, I don't know.

I applaud the guys here looking for info, and I wish they had more time to do it. Having a board like this is instrumental in finding a solution quickly, and I would prefer that it function as a sounding board rather than a name calling contest.

thanks.

[Fastfred92]

My guess is ( and Joe help me out here if I am wrong ) but the SIR needs distance from the MAF, maybe as much down stream as possible and a really big airbox just past the SIR should help, the SIR should draw cold air away from the radiator somehow but with care if you race in the rain alot and plan to draw air down low a la Dinan. My .02

[Joe Harlan]

My guess is ( and Joe help me out here if I am wrong ) but the SIR needs distance from the MAF, maybe as much down stream as possible and a really big airbox just past the SIR should help, the SIR should draw cold air away from the radiator somehow but with care if you race in the rain alot and plan to draw air down low a la Dinan. My .02
[/b]

Sorry Fred, I am done offering anything for free, Idiots like Chris make it impossible to want help. Again I have no interest in Raetech or their products I am not a dealer and I own no stock. I am just sick of whining uncompetitve trolls like Chris Howard that thinnk this club owes them something. Go to the GT site and you will see he has been agaist and whined about SIRs for the last 2 years.

[imported_Webmaster]

zchris

[zchris]

Sorry Jake. Sometimes I forget that others may be offended by a shot at one person. The thing that many of you IT guys have not heard yet is that optimizing the engine after an SIR is installed is not easy. I have not read one post on the GTL board that said, boy Finches theory was right on. They all have said I went from 210hp to 162 or something along those lines when the SIR was supposed to bring it down to 175hp. Sure these guys with countless hours on a dyno and many dollars later will be at that optimizes SIR hp. But the average guy will not be able to afford this. Lead on the other hand is about a dollar a pound. So 5 years down the road when all the SIR inlet tricks have been learned and trickle down to JOE average, then it will be a cost effective way to leash the group. In the meantime the difference between the halves and halvenots will just increase. Remember, lead is only a dollar a pound. And I do agree with whomever said that if one gets the SIR all should have to struggle with it. It is only fair. Having an engineering background I tend to want to fully prove a concept before I use it. It has not had the bugs worked out yet in GTL and here goes the CRB using them in IT. Just poor judgement in my opinion.
Chris Howard

[Joe Harlan]

Sorry Jake. Sometimes I forget that others may be offended by a shot at one person. The thing that many of you IT guys have not heard yet is that optimizing the engine after an SIR is installed is not easy. I have not read one post on the GTL board that said, boy Finches theory was right on. They all have said I went from 210hp to 162 or something along those lines when the SIR was supposed to bring it down to 175hp. Sure these guys with countless hours on a dyno and many dollars later will be at that optimizes SIR hp. But the average guy will not be able to afford this. Lead on the other hand is about a dollar a pound. So 5 years down the road when all the SIR inlet tricks have been learned and trickle down to JOE average, then it will be a cost effective way to leash the group. In the meantime the difference between the halves and halvenots will just increase. Remember, lead is only a dollar a pound. And I do agree with whomever said that if one gets the SIR all should have to struggle with it. It is only fair. Having an engineering background I tend to want to fully prove a concept before I use it. It has not had the bugs worked out yet in GTL and here goes the CRB using them in IT. Just poor judgement in my opinion.
Chris Howard
[/b]

All geniune good thoughts Chris, I think you missed the point that these engines don't get to alter camshafts and compression to optimize the SIR effects. There will be very little that is legally going to be done to optimze anything here. I don't just accept that it is the technology you are against, it is the designer of the technology. You guys want the background on Chris and the SIR just do a seach on the GT site and you will see Chris has these moments on a regular basis. I have even seen him go as far as wishing the designer of the SIR would get crashed out at the runoffs. Real piece of work if you ask me.