Hey - did you know if you click on the title of a thread it will take you to the first unread post since you last visited that thread?
but were afraid to ask: 
STOP!! Never post your email address in open forums. Bots can "harvest" your email! If you must share your email use a Private Message or use the 
smilie in place of the real @
Pretty Please - add it to our Events forum(s) and add to the calendar! >> 
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.
-
Hi Guest!
You can help ensure that British Car Forum (BCF) continues to provide a great place to engage in the British car hobby! If you find BCF a beneficial community, please consider supporting our efforts with a subscription.
There are some perks with a member upgrade!**Upgrade Now**
(PS: Subscribers don't see this gawd-aweful banner
Race car exhaust?
- Thread starter tr8todd
- Start date
Share this page
ChrisS
Jedi Knight
Offline
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
Offline
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