GT 42 exhaust housing size January 14, 2015 05:19AM
Building a 504 case open rpm p pump, 750cc fuel, ice cooler, water Inj, with a 3x3 gt 42. Just wondering if a 128 exhaust housing will be too big. Thoughts?
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Re: GT 42 exhaust housing size January 14, 2015 05:48AM
I think the 128 might be a bit big the 115 would work better on the bottom.
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Re: GT 42 exhaust housing size January 14, 2015 12:36PM
I Run a 436 p pump open rpm gt 42 with 115 works great
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Re: GT 42 exhaust housing size January 14, 2015 12:46PM
What is the smallest exhaust housing available for the 3x3 gt42?
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Re: GT 42 exhaust housing size January 14, 2015 01:22PM
We run a 504 case p pump gt4202r 101 exhaust and still get under the turbo



Edited 1 time(s). Last edit at 01/14/2015 02:06PM by jake breu.
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Re: GT 42 exhaust housing size January 14, 2015 02:01PM
I remember about 10 years ago when Roberts put out that letter on box turbo and picked the GT42 as the turbo for their super farm class. Since that letter the pulling world has probably bought more of that turbo than any other. Lot of small associations made it their turbo for classes. Good turbo at cheap price. Reminds me of the old T04 turbo back in the day. If Roberts gets on here can he post that letter or does anyone else have a copy. Been about 10 years when it was on here.
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Re: GT 42 exhaust housing size January 14, 2015 03:53PM
.115 should work well with the open RPM on the case. I ran that on my 466 (bored down 504)Case with no problems.
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