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Old 08-18-2010, 02:22 PM   #393
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i just re-read this and your other thread and see that. thanks. some good numbers no doubt..... now just have to save for a few years.....
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Old 08-18-2010, 02:38 PM   #394
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how is the lag when accelerating?
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Old 08-19-2010, 11:45 PM   #395
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Not bad. The turbo starts to spool pretty quickly and can get up to 5 psi by about 3,500 RPM's.
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Old 08-20-2010, 03:47 AM   #396
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now all you need is that 100 shot of NOS. that would be a LOT of tq.
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Old 08-23-2010, 08:01 AM   #397
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anything Camaro-related happen this weekend?
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Old 08-23-2010, 08:09 AM   #398
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Looking forward to the new 8psi meth numbers
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Old 08-23-2010, 07:59 PM   #399
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Okay, this is what happened this weekend. Scheduled dyno time on Saturday (same dyno pack). Did 2 pulls for a baseline and got essentially the same numbers as the last time, which is good. We start playing around with the Boost controller to try and set the high boost. Once we think we have it set at 7 psi., we attemp a run and but the car starts to seriously lean out quickly at about 3,500 rpm, so they dyno guy backs of quickly. One more try and same thing. We try to turn off high boost but we still have the same problem. Disconnect tube with MAF and meth injector and clean it out, but no change and then decided to stop the dyno (was being charged by the hour). Didn't have a chance to look at it on Sunday (autocross day) but did send info to STS and Trifecta for any input. Spoke to Rick at STS and received some information from Trifecta and I have some things to check out, but probably not until Tuesday evening.
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Old 08-23-2010, 08:43 PM   #400
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If the grand national gnx way back 1987 could handle 10psi does this mean at some point we could see 10 psi tunes?
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Old 08-23-2010, 09:21 PM   #401
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Quote:
Originally Posted by formare View Post
If the grand national gnx way back 1987 could handle 10psi does this mean at some point we could see 10 psi tunes?
i think with suporting mods we could see 10psi but you cant compare the gnx to the camaro, the gnx was build as a turbo motor our v6 wasnt.
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Old 08-24-2010, 11:56 PM   #402
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oooooo I want this meth to work soo bad!
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Old 08-25-2010, 12:58 AM   #403
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oooooo I want this meth to work soo bad!
Me too. I got the base boost working again. Seems like MAF location affected A/F ratio. However, when high boost activated, car leaned out quickly. Ugh. Still working...
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Old 08-25-2010, 06:45 AM   #404
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Quote:
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i think with suporting mods we could see 10psi but you cant compare the gnx to the camaro, the gnx was build as a turbo motor our v6 wasnt.
With the proper build anything is possible.

There are 4th gen V6's running 18+ psi with no problems.
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Old 08-25-2010, 07:45 AM   #405
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With the proper build anything is possible.

There are 4th gen V6's running 18+ psi with no problems.
i want to swap out pistons when i do my set-up and see if i cant get 650hp out of 15-20psi
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Old 08-25-2010, 01:50 PM   #406
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i want to swap out pistons when i do my set-up and see if i cant get 650hp out of 15-20psi
you'll need to swap out more than that i'm afraid. But dulling down the compression ratio to 8.5 :1 or so will be necessary to help get those boost numbers up. I'm just wondering how the motor will respond to lower compression pistons when not under boost. Reading the specs on the motor, it already sucks spend exhaust back into the cylinder to help cool and improve efficiency by detonating any unused fuel from the original compression/ignition stroke.

That said, the car may run very rich with alot of bog when not under boost if you went with lower compression-ration pistons., well ones that are as low as 8.5:1...

Maybe 10.1 : 1 ratio pistons would be enough to get higher boost #'s without changing the engine's normal behavior...
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