Quote:
Originally Posted by ForcedInduction
Right. A fixed geometry turbo will only spool as quickly as the volume of exhaust gasses can make it accelerate. The only three ways to make it spool quicker are to increase the exhaust volume put out by the engine (nitrous, supercharger, LOTS of fuel, etc), change to a smaller turbine or change to a variable geometry turbo.
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Well if these things can go any faster, you're the one I'd ask. So thanks for the response. I suppose an intercooler would help with HP later on but probably not the immediate response on the pedal.
The one thing I notice about most other diesels (Ford's IH, Cummins in Dodges, etc) is that the immediate response is not as delayed. Not sure why this is. Even in my old GMC Suburban with the 6.2 Detroit Diesel, I feel it move when I put my foot to the pedal. Every MB diesel I've driven doesn't move much until I see the RPM's hit around 2k. It can't be just the turbo since the 6.2 engine is NA non turbo. So now I'm wondering... hmm.
But of course the 603 is way faster than the 6.2GM once the turbo kicks in. Just right off the line, not so good. I'm sure everyone who's driven MB diesels knows what I speak of. Just wondering why that is.