This explains why
Thread Starter
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Fleet Mechanic
Joined: Sep 2002
Posts: 1,769
Likes: 7
From: Gretna ,LA.
This explains why
I have always said backpressure is not a good thing, and have argued here that backpressure is not required for trq, velocity is.Anyway this is pretty much the only forum i visit on FTE and most of you know my exhaust rants about headers with single exhaust etc.I found some good reading for my fellow V10er's. Enjoy.
http://www.hayabusa.org/cgi-bin/busa...T;f=11;t=13744
http://www.hayabusa.org/cgi-bin/busa...T;f=11;t=13744
Post Fiend
Joined: Jun 2003
Posts: 5,643
Likes: 8
From: NE Texas
Good info, Daryl and a great post, btw 
I stopped calling the "H" pipe a "Tuner" since I've seen it used so often that way (and since you've also coined it
) and am glad I installed them.
Now all I have to do is DO IT on my V10!!!!
Thanks, again. I needed that...
I stopped calling the "H" pipe a "Tuner" since I've seen it used so often that way (and since you've also coined it
) and am glad I installed them.Now all I have to do is DO IT on my V10!!!!
Thanks, again. I needed that...
Logistics Pro
Joined: Jan 2002
Posts: 3,733
Likes: 38
In the early years of Fred there was a guy smoking all our butts at the Tenino/Olympia 3/8th asphalt track. We all ran hobby stock claimer races and thus could not risk large dollars in the motor or drive train. A young fellow named Millican (you have seen this name if you follow racing) use to wear our butts out and lead by over half lap in every race.
His "trick": 360degree exhaust system and "balancers" known to you fellows as "X" or "H" cross over pipes.
I went to school on exhaust systems and have been experimenting for the last 30 years.
The link Z71 killer posted is required reading.... pay attention very carefully to the very first two paragraphs!
His "trick": 360degree exhaust system and "balancers" known to you fellows as "X" or "H" cross over pipes.
I went to school on exhaust systems and have been experimenting for the last 30 years.
The link Z71 killer posted is required reading.... pay attention very carefully to the very first two paragraphs!
FTE Leadership Emeritus
Joined: May 2004
Posts: 18,787
Likes: 30
From: Melbourne, Aus
Great post...
Although the introduction of limited back pressure can allow you to use the "waves" as mentioned in a more constructive manner.
The likes of a Honda requires a certain amount of backpressure, as they have these "waves" set up so when VTEC kicks in, so does the resonance of these "waves".
In a V10 on the other hand it makes little difference.
I have tried around 10 different custom made exhaust systems on my 5.4, and it is currently my "power bottleneck".
Although the introduction of limited back pressure can allow you to use the "waves" as mentioned in a more constructive manner.
The likes of a Honda requires a certain amount of backpressure, as they have these "waves" set up so when VTEC kicks in, so does the resonance of these "waves".
In a V10 on the other hand it makes little difference.
I have tried around 10 different custom made exhaust systems on my 5.4, and it is currently my "power bottleneck".
Posting Guru
Joined: Mar 2002
Posts: 2,245
Likes: 16
From: Vancouver Wash USA
Originally Posted by Fredvon4
In the early years of Fred there was a guy smoking all our butts at the Tenino/Olympia 3/8th asphalt track. We all ran hobby stock claimer races and thus could not risk large dollars in the motor or drive train. A young fellow named Millican (you have seen this name if you follow racing) use to wear our butts out and lead by over half lap in every race.
His "trick": 360degree exhaust system and "balancers" known to you fellows as "X" or "H" cross over pipes.
I went to school on exhaust systems and have been experimenting for the last 30 years.
The link Z71 killer posted is required reading.... pay attention very carefully to the very first two paragraphs!
His "trick": 360degree exhaust system and "balancers" known to you fellows as "X" or "H" cross over pipes.
I went to school on exhaust systems and have been experimenting for the last 30 years.
The link Z71 killer posted is required reading.... pay attention very carefully to the very first two paragraphs!
