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calaisturbo.com.au - cooler piping wat size to use

Started by PSI-WGN · 24 Oct 2004 · 4 replies

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PSI-WGNArchived member
can any 1 suggetst what size intercooler piping i should use. im running a gt 35/40 with rajab plenum and dont know if 3 inch would be to big and laggy or if 2 and 1/2 inch would be to small.
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MonstaS4Archived member
According to Corky Bell's book Maximum Boost, 2.5" piping will be big enough to support close to 600BHP without restriction. Get this book if you want good info on turbocharging.
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duz360Archived member
i always run the same diameter pipes as the turbo and throttle.the gt3540 is 2.5" and id say you gonna use a xf throttle which is 3"
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PSI-WGNArchived member
Quote: Originally Posted by duz360 i always run the same diameter pipes as the turbo and throttle.the gt3540 is 2.5" and id say you gonna use a xf throttle which is 3" its got an el t/b so then would 2.5 inch turbo to cooler and 3 inch cooler to plenum be the way to go?
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duz360Archived member
thats what id do
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