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I need to replace the exhaust system on my BMW 2002 race car. I don't have any experience with four cylinder race motors. Can any of you guys tell me what your running on your cars? I was thinking just a Borla out the back. The motor is running twin side draft Webers, a big cam and 13 to 1 comp. Not even 100% sure of the specs on the motor in the car, or the spare race motor that came with it. PO is dead and I'm learning as I go. I bought the car cheaply figuring to make it conform to vintage rules. It was previously set up as an EP autocross car.
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Race car exhaust?
- Thread starter tr8todd
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ChrisS
Jedi Knight
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David Vizard had an article in Circle Track magazine a few years back. Here is a link to a copy of the article (although page 5 is missing). At Lime rock and autocross I run a Dynomax / Thrush turbo muffler (which I'm pretty sure are the old Walkers) on my Midget track car. Summit has them pretty cheap.
I know about Ireland. They have been jerking me around all winter waiting for my new eurethane engine and tranny mounts. I am putting an old Bosal 2 inch system onto a friends daily driver now. It came on a parts car I bought recently, but it looks new. That is what made me think of this post.
aeronca65t
Great Pumpkin
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Like Chris, I have to run a "Lime Rock" exhaust.
And, like him, I shop at Summit, since they're pretty cheap and easy to deal with.
For all the other tracks, I just have a straight pipe coming out under the door.
At LR, I slip on the little Summit muffler and hang it on the right side sill using a simple clamp. I have no clue what the effect is, but it doesn't seem to slow things down much.
Here it is (it looks too low partly due to the terrain that it's on....the wheels are sitting in a low spot):
And, like him, I shop at Summit, since they're pretty cheap and easy to deal with.
For all the other tracks, I just have a straight pipe coming out under the door.
At LR, I slip on the little Summit muffler and hang it on the right side sill using a simple clamp. I have no clue what the effect is, but it doesn't seem to slow things down much.
Here it is (it looks too low partly due to the terrain that it's on....the wheels are sitting in a low spot):
swift6
Yoda
Offline
If you could build and market one specific style of muffler, with a distinctive shape, you could sell it as the 'Lime Rock Muffler'.
Similar to the 'Brooklands' muffler. Race tracks requiring some sort of noise control date back to one of the first purpose built race tracks. /bcforum/images/%%GRAEMLIN_URL%%/smile.gif
Similar to the 'Brooklands' muffler. Race tracks requiring some sort of noise control date back to one of the first purpose built race tracks. /bcforum/images/%%GRAEMLIN_URL%%/smile.gif
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