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Help deciding on a ar?

Old Oct 1, 2013 | 01:58 AM
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Default Help deciding on a ar?

1999 z28 with a stock bottom end lq4, custom cam, 3:42 gears, 4l80 w/ 3600 yank.. I'm going with a 78mm turbonectics bb but don't know what ar to go with .96 or 1.15? Car will be my dd and only gunna be revving the car to 6600. Will only be running 12-14 lbs on pump gas with meth.. Any info would help

Last edited by mobinlow&cln; Oct 1, 2013 at 02:06 AM.
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Old Oct 1, 2013 | 02:55 AM
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what size turbine wheel !!!plays a big role to go along with the ar /ratio
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Old Oct 1, 2013 | 09:34 AM
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I would go with the 1.15 you'll have less backpressure issues down the road.
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Old Oct 1, 2013 | 10:13 AM
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Originally Posted by Twin turbo c5
I would go with the 1.15 you'll have less backpressure issues down the road.
THIS^^^

I would not go T4 .96ar if I had a larger option on any motor over 300ci. The .96ar flows pretty good on a 4.6L ford. My 5.3L has instant spool with a 1.10ar T6 BW 475 with a 83mm turbine wheel. If I had a 6.0L I would have gotten the 1.32ar with the 96mm turbine wheel.
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Old Oct 1, 2013 | 07:05 PM
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Thanks for the Info fellas I went ahead and pulled the trigger on the 1.15
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