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Power Strokes
6.4 Aftermarket
waste gate feeding atmo
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[QUOTE="Dzchey21, post: 967583, member: 63"] dont gate between stages, the turbin in the low pressure is too small and not really effective you are better off to just trim total back pressure with a gate that dumps to atmo or in the downpipe. Back pressure should be around 70 psi with boost in the 55 psi range. start off with about 1.2 bar of springs or around 16-18 psi depending on the gate Lots of guys have switched to water cooled gates on max/high powers due to heat in the engine compartment, also i feel that turbosmart gates are good as well as turbonetics also makes a good gate. You are going to want a gate in the 44mm range also let the vgt go all the way open. Dont try to close it down your back pressure on one bank will be too high [/QUOTE]
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waste gate feeding atmo
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