More Boost out of a 97 5speed

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04-04-2006, 11:41 AM

#16

Lil Dog

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Quote:

Originally Posted by vssman

Get a brass elbow (1/8 NPT) and drill from the inside (threaded end) out the back and tap for a #10 set screw. Use a little lock-tite on the thread (removable kind). This replaces the stock elbow on the front of the compressor housing. Screw the set screw in almost all of the way and back it out 1 turn to start with. Then adjust from there. A stock HX35 max efficiency is around 35-36 max.

You forgot to include the bleed orifice size. That I don't know about the size, but you need a bleed orifice between the pinch point and the wastegate for it to work properly. If you don't have a bleed , then you only delay opening of the wastegate, not control it. It looks like a 0.050 hole or less in mine.

Also the elbow is located at the AFC housing on the 12V engines prior to 98.