Need input on supercharged z06 tune.
03-07-2012, 10:25 AM
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Need input on supercharged z06 tune. I bought an 02 a&a v2 supercharged z06 corvette a while back and was told it was tuned at 8-9 psi and put down 600 whp. Right now I am seeing 5-6 psi with a 3.8 pulley. I pulled my tune on hp tuners and it is showing my timing from around 4000 rpm's up at 14 deg. My afr is 12.8 from 3200. From what I have learned this seems way off. Can I get some other experienced opinions? I would eventually like to pulley to a 3.6 and try for the quoted 8-9 psi on pump gas. Need suggestions here also. I'm on the stock ls6 with 60lbs inj. LT headers and straight pipes. Thanks and God bless, Jeremy
03-07-2012, 12:08 PM
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No, it's tuned for that from 3200 to redline. So is the timing not a red flag also? Seems a little low for 6 let alone 8-9, or am I way off? The average that I have seen for these boost levels were 17-20.
03-08-2012, 11:50 AM
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Before you do an thing else you need to get a wide band. Next check for belt slip. You need to know your air/fuel ratio not assume. Timing might be a bit low, but if makes to HP then you do not want more. Stock bottom end good for 600 HP.
