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930gt-40r 930gt-40r is offline
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Join Date: Jan 2007
Location: Boca Raton, FL
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I was always under the impression that turbos worked off of exhaust gas expansion. Merv, as far as your car is concerned, if you already have the ports inlarged for bigger headers, I would go for it. Your motor already has a boatload of mods that increase the flow on both intake and exhaust side, so the bigger primaries would more than likely be welcome. As Pat K. says it may lose a little bottom end, but mid-range and top end will be improved greatly. I think if your increasing the volume of exhaust gas to the turbo, then it gets squeezed in the turbine housing and released over the turbine, spool-up may not suffer too much.
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86' 930/GT-40R Sold
94' Rustang GT daily (long gone)
2008 C6/Z51 Corvette
Old 03-30-2007, 07:48 AM
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