3 inch DP
09-09-2003, 12:47 PM
#2
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Location: Pleasant Hill, Ca, USA
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Re: 3 inch DP (TTWS6.)
well, most likely it will be a 2.5 in DP flared into a 3 in. Then 3 in all the way back. Ppl around here say 250 + hp go 3 in all the way.
My question is, there is still that restriction in the 2.5 portion of the DP? Its a bottleneck period. Does it even help much to go 3 in?
My question is, there is still that restriction in the 2.5 portion of the DP? Its a bottleneck period. Does it even help much to go 3 in?
09-09-2003, 10:32 PM
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Re: 3 inch DP (Kack)
A 1/4" bottleneck coming out of a 2.5" turbine outlet isn't that much... If it steps up to 3" immediately, there is no bottleneck, really. If you use a 2.5" U bend to clear the A/C, THEN you go to a 3", that's not really helping much, maybe a little, but make sure you've got a 3" straight through exhaust after that to make use of it.
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