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New 408 initial tune...

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Old 09-14-2011, 10:30 PM
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Default New 408 initial tune...

LQ block .030" over, Wiseco -3cc flattops, Callies Compstar rods, Callies Compstar 4" stroke crank, WCCH STG 2 L92's, stock L76 intake, 42# FIC injectors, Holley 90mm TB, Pat G spec'd cam, Powerbond UDP, 85mm GM MAF, 98mm FTP lid, Pacesetter 1 3/4" and ORY, Corsa catback and 6 spd.
Put down 500 RWHP/451 RWTQ with a bad vacuum leak causing a very rich 10:1 AFR. Found #3 and #5 intake ports leaking for some reason. Fixing the problem and retune by Speed Inc on the 29th. Will see what more Jim can get out of it....he said he should be able to get another 15/20+ for both HP/TQ once he can lean it out....
Old 09-15-2011, 01:49 PM
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Great numbers with 10.5A/F ratio I'm sure you can get another 15-20rwhp with 12.8A/F ratio.

Any vids of the car ideling I wanna hear the Corsa with cam?
Old 09-15-2011, 02:26 PM
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No vids as of yet. I will try to get one up when it's all complete and I have the final numbers as well.
Old 09-15-2011, 04:31 PM
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Jim is the man
Old 09-15-2011, 07:48 PM
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cam spec?
Old 09-15-2011, 07:55 PM
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239/247 int/exh, .625"/.625" int/exh, 115+3 and evidently he (Pat G) knows what he's doing....hehe
Old 09-15-2011, 10:00 PM
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Default Initial Dyno sheet...

New 408 initial tune...-jessh_dyno_sheet-1-.jpg
Old 09-17-2011, 04:27 PM
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Good numbers!! How much timing?
Old 09-17-2011, 04:41 PM
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Honestly, I couldnt tell you. I couldnt get off of work to be there, but its going back on the 29th, so hopefully I can find out some more details...
Old 09-29-2011, 08:50 PM
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Well, she had her final tune today and according to my shop, it put down 516 RWHP. He didn't know torque offhand, but I'm going to go pick it up tomorrow and see what I think. Graph to post as soon as I get it....
Old 09-30-2011, 10:07 PM
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Well, 516 RWHP/486 RWTQ isn't too shabby...
Now just need to figure out why it idles at 1200 rpm when warm after tune...waiting to hear from Speed...




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