Backpressure
#1
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Backpressure
Hello all. I need some info. Im in the process of adding a stright pipe to my FC. I have an 88 gxl and lookin to add a bonez striaght pipe, and exaust but my car is pretty much a daily driver. Ive been reading about how having virtually no restrictions in the exaust causes almost no backpressure, I need to know why this is bad/ if at all and what you guys would recomend. Keep in my mind my intentions are MAX POWER while keeping this car a daily driver- WHAT WOULD YOU RECOMEND>?
#3
Originally posted by RylAssassin
oh yeah and its a non turbo
oh yeah and its a non turbo
This principal does not apply to NA piston engines, because these engines need the backpressure in order to "keep" the A/F mixture in the chambers while in overlap.
However, a rotary engine, unless ported, does not have any overlap (or rather a very small percentage of the overlap of piston engines), so an NA will benefit from the lowest backpressure as well...
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cool thanks guys so one last thing then, My upgrades are; a 2.5" stright pipe with pre-silencer, the Apex gt exaust which is 3.75" diameter pipe, so does all this **** have any backpressure?
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#8
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Originally posted by Ichiban
umm ok this sorta help me
would a 2.25" from the engine to a 2.5" tip provid just enough back presure to open the extra 2 ports
umm ok this sorta help me
would a 2.25" from the engine to a 2.5" tip provid just enough back presure to open the extra 2 ports
You will need a presilencer and/or a muffler at least.
#14
Former Moderator. RIP Icemark.
I only know it in milimeters, but according to HKS, the cat back dual 50mm exhaust will yeild more low end torque than a 60mm that a T2 would use.
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