Quote:
Originally Posted by Dougal
Changing exhaust A/R shifts the whole boost curve up and down. So smaller gives you more low end boost and boost at lower rpm.
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So would you then take back what you said above, about going smaller for more low end boost? Because taking into account the new information that it has a .35 AR, that gives it a significantly smaller AR than previous models you've suggested...
If turbine AR shifts the boost curve, does that also affect the minimum RPM's to gain initial boost?
Also, what variable affects the curve width? (by that I mean RPM range at which you get boost).
My main concern with this turbo is altitude compensation... as a result I think what I want is one that will be operating during the maximum range of RPM's possible... I'll never be setting the wastegate high as the engine is 27 years old and has a long way to go...
On that note... with a larger or smaller turbo am I likely to notice different behaviours/handicaps as a result of low ambient pressure?
Sorry so much for my quick question. Thanks so much for all your help Dougal, this is really great.