Test Pipe ?'s

[badabing33a]

Does anybody use a test pipe instead of a cat? If so, did you notice a difference performance wise? Its easy to make so i will probably make one and figured id ask about it.

 

[the_mork]

http://www.dsmtuners.com/forums/art...31-make-testpipe-under-15-get-money-back.html

 

[badabing33a]

yea that what gave me the idea. but he never said how it ran.

 

[the_mork]

It will be faster and you will probably have to fool the 2nd o2 sensor. I have no idea what sort of real world gains you would get on a n/t but people do it for a reason.

 

[Zmann42087]

On a turbo car, the gains will be more obvious as any reduction in back pressure will translate to performance gains as the turbine wheel efficiency is increased. On naturally aspirated cars, the gains will be less negligible as exhaust back pressure isn't as much of an issue when it comes to performance.

You might want to check out this Turbo Exhaust Theory. It was written by a Garrett Turbo Engineer and has some pretty good information.

 

[badabing33a]

On a turbo car, the gains will be more obvious as any reduction in back pressure will translate to performance gains as the turbine wheel efficiency is increased. On naturally aspirated cars, the gains will be less negligible as exhaust back pressure isn't as much of an issue when it comes to performance.

You might want to check out this Turbo Exhaust Theory. It was written by a Garrett Turbo Engineer and has some pretty good information.

wow thats very interesting. everyone should take a look at that. thanks zman.