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NathanUK NathanUK is offline
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Join Date: Nov 2006
Location: UK
Posts: 2,002
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I agree GJF, but, and this is what I think JFairman is getting at, is that if at WOT and say 6K RPM you have 1bar of boost measured at (inside) the inlet manifold and providing the charge intake temperature is the same temperature at (inside) the manifold, then how can one turbo make more power than another? Beats me anyway...
The only other explanation is if the smaller turbo is restricting the exhaust getting out of the engine as the bigger turbo will open up the wastegate more than the smaller turbo which needs all the exhaust it can get to maintain turbo speed and therefore cold side flow.
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1981 UK 930. G50/01 shortened, 964 3.8RS Fibreglass Body Kit, 18" Alloys 8.5" F & 10" R, 225's F & 285's R, Special Colour Metallic Blue Paint, FIA Sparco Evo's, A/C and Air Pump removed, Electronic Boost Controller, GHL Headers, Tial46 WG.
Fitting - New service kit.
Needs Fitting - Innovate XD-16 Kit, Kokeln IC. Stephen's K27 HFS, EVO Intake Assy & his Modded USA Fuel Head.

1983 UK 911 3.2 Carrera Sport Coupe. Black, Black Leather with Red Piping, Black Alloy Gear Knob, K&N Air Filter Element, Turbo Tie rods.
Needs Fitting - K&N CO Sensor, Round A/F Dial Gauge, Factory Short Shift Kit.

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Last edited by NathanUK; 07-15-2008 at 12:38 PM..
Old 07-15-2008, 12:33 PM
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