Will Different Size IC Pipes Affect Boost Pressure?
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Will Different Size IC Pipes Affect Boost Pressure?
Hey guys, I've had an Old-School Greddy IC core laying around for awhile now, and I finally bought some used aluminum piping to put together a kit. 3 of the pieces are from the original, yet the rest is not. I measured the Greddy pipes, and I believe they are 2.25" and the rest of the pipes are 2.5". Now, I was just curious as to the potential pressure drop from the air moving from smaller to larger to smaller diameter piping. Would it affect response to the point where it would be disadvantageous (sp)? Also, wouldn't the air be bottle-necked at the throttle inlet anyways, because it is only 2" right? I know that the newer Greddy kits use a new elbow, but the older ones used the stock inlet, and I haven't read of anyone having problems, so does this small sizing difference even really matter? All of the piping ranges from 2.5 to 2.0 inches. Thanks in advance.
Oh...and if anyone with this kit can give me any insight as to how I'm gonna get my intake to work, that'd be awesome too. *lol*
Oh...and if anyone with this kit can give me any insight as to how I'm gonna get my intake to work, that'd be awesome too. *lol*
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The question is if it's significant?
Stock turbo?
Going from 2.25" to 2.5" you would probably not feel that much of a difference.
If you want from 2.0" to 2.5", I'd be you would definitely feel a difference.
-Ted
Stock turbo?
Going from 2.25" to 2.5" you would probably not feel that much of a difference.
If you want from 2.0" to 2.5", I'd be you would definitely feel a difference.
-Ted
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Yeah, it's an S5 turbo on an S4 engine. The piping from the turbo goes (if I remember correctly) 2.25 pipe to 2.5 pipe to 2.25 elbow. Then the core, then 2.5 all the way up to the pipe right before the inlet, which will probably be 2.0 to fit with the throttle. I just wanted to know if I'll lose alot of power/performance, and should I just try to get the piping made all the same size (though that would mean I'd hafta spend more money). I guess it's more of a question of would me getting all the piping made over in the same size make any difference in performace to justify the price it would cost (kind of a confusing sentence? *lol*). Thanks for the help so far, it's really been buggin me, haha.
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Crap, oh well. *lol* I'm gonna go to a shop sometime this week and get the piping made. I plan on getting a BNR stage 1 or 2 in the near future though, so would 2.25 be ok? That's the sizing I planned on getting the piping all along, I just didn't want to have to spend more money to get it all made.
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#8
Originally Posted by 88rxn/a
when is the need for bigger IC piping???
as in HP and size of turbo?
as in HP and size of turbo?
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