evolutionm.net - View Single Post - Mod Advice: MAP 38mm MVS O2 Eliminator Downpipe w/FP Red

dhammans · Jul 13, 2009, 04:12 AM

People seem to be confused what a Wastegate is actually for. The function of the wastegate is to allow exhaust gasses to bypass the turbine wheel. This effectively creates less boost, as you are "wasting" this energy and not using it to drive the turbine wheel (and hence drive your compressor wheel).

The general rule of thumb is the lower the boost you want to run the bigger the wastegate you are going to need. There is no reason you should need an external gate on a turbo such as the FP red, the internal gate is capable of relegating it to very reasonable pump gas boost pressures already. The only reason you'd want an external gate is if you were actually going to try to run 14psi, but who would want to do that?

Jul 13, 2009, 04:12 AM	#7
dhammans Evolving Member Personal Sales Rating: (1) Join Date: Jun 2003 Location: Dallas, TX Posts: 100 Drives: 06 EVO IX SE	People seem to be confused what a Wastegate is actually for. The function of the wastegate is to allow exhaust gasses to bypass the turbine wheel. This effectively creates less boost, as you are "wasting" this energy and not using it to drive the turbine wheel (and hence drive your compressor wheel). The general rule of thumb is the lower the boost you want to run the bigger the wastegate you are going to need. There is no reason you should need an external gate on a turbo such as the FP red, the internal gate is capable of relegating it to very reasonable pump gas boost pressures already. The only reason you'd want an external gate is if you were actually going to try to run 14psi, but who would want to do that? __________________ Dan Hammans We Need More Power - www.wnmp.net 1999 Eclipse GSX - 10.66 @ 131 in 2004. 2006 Evolution IX SE - FP Black® Powered. BNIB Magnus V5 intake for sale, PM for info.
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