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Old 09-24-2007   #2
Speedfreak
 

Join Date: Jul 2004
Location: MN
Drives: four tires
Posts: 1,608
Re: Wastegate Sizing

Well you should be telling us what your plans are for your car first, then we can answer what sizing will work for you. What turbo, what manifold, and what placement for the wastegate? Then what amount of boost do you plan to run? On what gas? What size motor?

The reasoning for being able to run a small wastegate on a larger turbo when running high boost is, it really doesn't have a big job to do. If you tried to run low boost for pump gas or something, it'll just boost creep.

Wastegate placement also has to do with how well it will work. On my car, my Tial 40 should be able to do the job with my 61. But because of my Turbonetics manifold with the wastegate placement on one runner, it just wants to creep its way up to 25lbs or so no matter what.
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