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GJF GJF is offline
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Join Date: Dec 2004
Posts: 809
If the there is a bottleneck like a restrictive IC or a intake manifold, then, two different turbos of different sizes would see the same volume of air at 15 psi because of the restriction. if there is no restriction then the larger turbo will produce more power because it is pumping more volume. If you want to make huge power with EFI and all the bells and whistles then a large frame turbo is in order because the more boost you want then you need a larger compressor so it won't heat the charge temps to the point that it is heat soaked. the larger turbos help keep the charge temps cooler as they don't over spin the compressor causing the charge temps to skyrocket
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87 911 Carrera platform
Twin Garrett's, Big Valve, Xtreme Cylinder Heads, JB Racing cylinders and machine work, custom JE pistons, GT2 EVO cams, GT3 oil pump, modified 3.2L intake, 80mm TB, custom Intercooler, equal length headers, DFI, KEP Stage 2 custom twin disc, G50 custom gear set, LSD, Tilton trans pump, Fluidyne cooler
Old 07-15-2008, 03:39 PM
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