Thread: Fuel Screw
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Old 01-12-2017, 06:40 PM
adamdrives adamdrives is offline
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Join Date: Feb 2016
Location: Hudson Valley NY
Vehicle: 1985 744 D24T M46
Posts: 147
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I thought I replied to this earlier, but thanks for the info. Hard to visualize what you mean, I'll have to print this out and take a look at the pump. It definitely smokes at full throttle.

Right now I have a larger cold side and upgraded turbine wheel from a ebay turbo. Could be I've gotten used to driving my s70 while this sat waiting for the turbo, but I swear it feels slower. I think the responsiveness of the smaller turbo meant I was getting into full boost before the governor started to de-fuel, but the odd thing is that the turbo seems to build boost more slowly. I can't remember if it did this before, is it more typical for diesels to build boost more gradually? In my gas car it's almost instantaneous.

edit: I experimented by disconnecting the WG and seeing how that might affect boost (ie weak spring opening too soon) but it's the same. Makes more boost, obviously, but still slow to build. Even at 15psi, still seems pretty sluggish.
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1985 744 D24T M46 49mm t3 @20psi 280k

Last edited by adamdrives; 01-12-2017 at 06:42 PM.
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