Quote:
Originally Posted by schaffer
smallest turbo that makes the power you want.
build looks like it's coming along nice. I'll have a turbo miata some day.
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Yes and no, depending on application. Say you have a track car and you're always in load. Well it makes no sense to run a GT2560 to the edge of what its capable which on my engine seems to be 270-280whp. However, running it at peak boost all the time won't yield a long life for the turbo.
Running say a GT2860 would help because its max output is around 350 so you won't be running it out of breath. The confusion comes in that I talked to the company that makes the kit with a GT2860 and GT3071 and they said since the low-end spool is basically the same, but the 3071 can handle more power, you get better thermal efficiency out of it, and reduce engine temps, they usually recomend going from a to c and skip b.
The nutty part about the EFR turbos is their spool. Spool of a gt2554, power potential of a 3071. It's exactly what I need, and should spool 700-1000rpm qicker than the GT2860