Which exhaust system???
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From: Phoenix
My statement about the 'vette using dual exhaust sure raised some issues. For the most part, dual exhaust is purely a styling issue. The big V-8 does lend itself to duals with its 2-sided engine, but these engines do just as well with singles, as a previous poster mentioned in regards to the Camaro.
Motorcycles come in many multiples of exhaust, but even they use a cross-over to allow each pipe to breath through both mufflers, creating a defacto single muffler. Having several smaller mufflers looks good, and that's why they do it that way.
Dual exhaust is a styling statement that is associated with racing tradition. That's what Honda chose for the S2000, and I personally wouldn't alter that statement by converting to a single.
Motorcycles come in many multiples of exhaust, but even they use a cross-over to allow each pipe to breath through both mufflers, creating a defacto single muffler. Having several smaller mufflers looks good, and that's why they do it that way.
Dual exhaust is a styling statement that is associated with racing tradition. That's what Honda chose for the S2000, and I personally wouldn't alter that statement by converting to a single.
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From: Phoenix
Originally posted by cdelena
I don't thing so, big displacement needs a lot of flow. In my experience duals with a an x-pipe is critical for power. 5.7 liters at 6500 rpm needs to exhaust more than double what our engine does at redline. A four inch single might be a bit hard route.. dual 2.25's make sense!
I don't thing so, big displacement needs a lot of flow. In my experience duals with a an x-pipe is critical for power. 5.7 liters at 6500 rpm needs to exhaust more than double what our engine does at redline. A four inch single might be a bit hard route.. dual 2.25's make sense!
Resistance to flow is related to the cross-sectional area of the pipe, not the diameter. An equivalent single to 2.25 inches is 3.5 inches. Singles for S2000's perform just fine too.
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From: Irvine
Don't forget you're also combining flows which can produce interference at the fork. To me this might produce additional back pressure (I did not do well in pressure physics 
). I don't know much about camaro's but I'm willing to bet their single exhaust design loses some power when compared to the vette's dual exhaust. I thought camaros came with duals? Or is it a single pipe to dual outlet?
I agree with you that Honda chose the dual exhaust design purely for looks. But dual exhausts on the vette is not because of "racing tradition" as you implied.
). I don't know much about camaro's but I'm willing to bet their single exhaust design loses some power when compared to the vette's dual exhaust. I thought camaros came with duals? Or is it a single pipe to dual outlet?I agree with you that Honda chose the dual exhaust design purely for looks. But dual exhausts on the vette is not because of "racing tradition" as you implied.
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From: Austin
vtecvoodoo,
I'm very interested in getting a 5zigen dual tip exhaust.. Can you tell me more about yours? Are there really only five known in the states? Where would I be able to get one? Got pics???
If anyone else knows anything about the availablilty and performance/sound characterists of 5zigen exhausts, please advise..
Thanks in advance!
I'm very interested in getting a 5zigen dual tip exhaust.. Can you tell me more about yours? Are there really only five known in the states? Where would I be able to get one? Got pics???
If anyone else knows anything about the availablilty and performance/sound characterists of 5zigen exhausts, please advise..
Thanks in advance!
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From: Phoenix
Originally posted by cdelena
Don't know what the theory says.. I've done some fast V8's and can tell you 1) There is no way you are gonna route eight large diameter header pipes into some sewer pipe exhaust and get it out the back, 2) no one would want to, and 3) doing duals is proven and cheap. I don't know the Camaro you are talking about but anything that will compete does not have a single pipe.
Don't know what the theory says.. I've done some fast V8's and can tell you 1) There is no way you are gonna route eight large diameter header pipes into some sewer pipe exhaust and get it out the back, 2) no one would want to, and 3) doing duals is proven and cheap. I don't know the Camaro you are talking about but anything that will compete does not have a single pipe.
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From: Austin
So what I'm basically reading from just about everyone but cdelena is that one large pipe will flow better than having TRUE duals? I'm not saying that the duals on Camaro's are better than a single, I'm talking TRUE duals. Most good V6 and V8 headers I see do not have a single output, but two. And I'm sure most race cars have two headers, one from each bank of cylinders, and two seperate pipes. I know that duals that split from a single isn't much better. I'm talking true duals. There's just no logical way to say one large pipe flows better than two large ones... Not to mention, IMO, single outlet on Camaro's look like crap.
Blake
Blake
