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Author Topic: exhaust systems  (Read 5316 times)
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mowerracer313
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« on: January 06, 2006, 05:34:26 PM »

with the vtwins should one run straight duals or an xpipe or just a balance pipe between the duals
ive read,  with cars the xpipe makes more power and scavenges better
anyone experimented with this stuff  does it make a difference on these motors
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Brian Singsime
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« Reply #1 on: January 06, 2006, 06:10:21 PM »

Well I have run a two seperate exhaust identicle side by side, I have run a two header into one pipe setup, I have run a dual axhasut with the Xtype crossover and I have run one with the H type cross over. I didn't like the H type at all. I liked the X and the identicle dual side by side the best. Both seemed to produce more bottom end than anything else. The two header into one work well everywhere. As for which is the best. Not so sure one is. The differences are not as great by the seat of the pants feel as you would expect. The biggest reason I disliked the H type was the sound. The best sounding exhaust of them all is the two into one type. But I have won equally with each setup so can't say any of them perform bad.
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George Herrin #6
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mowerracer313
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« Reply #2 on: January 06, 2006, 07:22:12 PM »

hey george what size pipe did you use
also does it help to wrap the pipes with header wrap
i heard keeping the heat in the pipes makes more power also
i figured every little bit helps
does someone make the x part of the exhaust or did you make it yourself
thanks for the help
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Brian Singsime
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« Reply #2 on: January 06, 2006, 07:22:12 PM »

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George Herrin
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« Reply #3 on: January 06, 2006, 07:24:55 PM »

The first 12 to 15 inches of any exhaust has been 1 inch ID. from there I have tried several sizes. All exhausts have been one off pieces either I built or had built. I have tried header wrap and again if it helped you couldn't feel it in the seat of the pants.
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George Herrin #6
Indian Power.. You gotta Go big to beat em or Go HOME
8 time ARMA National Champion
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My other racer is a 1/5th scale Dirt Late Model!!!!
mowerracer313
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« Reply #4 on: January 12, 2006, 07:35:54 PM »

hey george did you use exhaust pipe??  i have found the 1 inch pipe but cant seem to find elbos  any ideas  
would like mandrel bent but cant find anyone around here that has a mandrel bender or the dies for 1 inch for their benders
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Brian Singsime
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« Reply #5 on: January 12, 2006, 11:21:26 PM »

I used pre bent pieces from RLV the compnay for making kart pipes. A friend knows a friend and They sponsored me with a bunch of prebent pieces of different angles. Worked great too.
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George Herrin #6
Indian Power.. You gotta Go big to beat em or Go HOME
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My other racer is a 1/5th scale Dirt Late Model!!!!
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« Reply #6 on: February 19, 2013, 08:43:24 AM »

Can't remember what I used, but it works!!!
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Do what you can, with what you've got, where you're at.
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