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| Re: Wanted: info on GXexhaust optimum pipe length? |
Subject: Re: Wanted: info on GXexhaust optimum pipe length?
by ddgonzal on 2015/11/19 9:16:52
Datsun did the dyno work. For a street car, the stock length is optimum.
For drag racing, spray paint the pipe, do a 1/4 mile pass, then note where the paint is burnt off. Where it stops is the optimum length. End the collector right there.
For scavenging effect, have the collector end in a muffler, just as the factory GX exhaust does.
After this, adding another length of exhaust pipe to the back and with a larger muffler will keep it quiet without changing the scavenging effect.
See Exhaust Sizing
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