Has anyone actually measured pressure in exhaust?
#5
single digit dreamer
iTrader: (6)
i did with the turbo but never with a blower. i taped a 1/8" fitting into the exhaust and ran a couple feet of copper line. then adapted to a presure sensor and loged it.
on a turbo set up anything under a 2-1 presure ratio is pretty good. with a blower i am not sure at all. i would say if you are more than a few psi that you would make more power with better exhaust. i think it depends on your cam more than anything. something with little overlap wont be as effected with some back pressure but something with a lot of overlap hates exhaust back presure.
on a turbo set up anything under a 2-1 presure ratio is pretty good. with a blower i am not sure at all. i would say if you are more than a few psi that you would make more power with better exhaust. i think it depends on your cam more than anything. something with little overlap wont be as effected with some back pressure but something with a lot of overlap hates exhaust back presure.
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