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compressor, turbine match

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Old Nov 1, 2013 | 12:45 PM
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Default compressor, turbine match

I was wondering if anyone has used the GTX3576R turbos in a twin setup on a LS7. This is a street car only for now. I'm curious about the turbine match. An ar of .63 or .82 for the street. I know there are other factors to consider, gear ratios and such. If someone has had good results with these could you let me know. thanks in advance.
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Old Nov 1, 2013 | 02:04 PM
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Originally Posted by slaw
I was wondering if anyone has used the GTX3576R turbos in a twin setup on a LS7. This is a street car only for now. I'm curious about the turbine match. An ar of .63 or .82 for the street. I know there are other factors to consider, gear ratios and such. If someone has had good results with these could you let me know. thanks in advance.

I know a guy here in the UK put a pair of normal GT35's on his 7.0 RX-7, think he said his were in the 1.0A/R range though.
It is making good boost by around 3500rpm

As they typically use the smaller T3 flange, a higher numerical turbine ratio probably makes more sense, especially with the bigger motor.
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Old Nov 1, 2013 | 02:30 PM
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thanks stevieturbo. i will look into the bigger a/r as well.
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Old Nov 1, 2013 | 02:31 PM
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with that small of exhaust weel you want/need ATLEAST a 1.0+
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Old Nov 1, 2013 | 02:32 PM
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or get a Small t4 housing.
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Old Nov 1, 2013 | 02:48 PM
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Dont think Garrett offer the 35 with a T4...and either way, turbine wheel is still the same size.
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Old Nov 1, 2013 | 02:57 PM
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i was thinking of the Tial stainless turbine housings. they come in a .63, .82, and a 1.03 for that compressor. But those are a V band housing. Have you heard of anyone using those?? i think that's correct, i didn't see a 35 with a T4 only T3's and Vband.

Last edited by slaw; Nov 1, 2013 at 03:16 PM. Reason: forgot something
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Old Nov 1, 2013 | 02:59 PM
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They're based on T3 sizes anyway, so are more for neatness and ease of fitment compared to a 4 bolt
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Old Nov 1, 2013 | 09:44 PM
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stevieturbo i watched the vid. nice run. i have friends in liverpool and manchester. worked with them in iraq. i like the history over there but not so much the weather LOL. thanks for the help.
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Old Nov 3, 2013 | 07:59 PM
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Originally Posted by stevieturbo
Dont think Garrett offer the 35 with a T4...and either way, turbine wheel is still the same size.
...... so get with a company that offers what you need... not with a name.

PTE for the win.
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