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*** Timing advice needed asap ***

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Old Oct 17, 2008 | 04:51 PM
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Default *** Timing advice needed asap ***
Just curious if there i any "risk" throwing a couple degrees in my car at the track. Rough breakdown of my set-up:

370ci 9.1:1cr
T4ST80 at ~11psi
dual nozzle alky control kit running pure meth
91 octane with a gallon or two of 110 mixed in a full tank
17* built into the tune

I have efi live and can add a couple degrees if I want. Ambient temps should be in the 75--85* range or cooler.

Whatcha think? I figured I'd be okay throwing a couple more in it if I need to shave a few hundreths
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Old Oct 17, 2008 | 04:56 PM
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looking for 9's huh.... Are you talking 2 degrees or more? Can you not just up the boost to try that instead?
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Old Oct 17, 2008 | 05:01 PM
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Originally Posted by ninetres
Just curious if there i any "risk" throwing a couple degrees in my car at the track. Rough breakdown of my set-up:

370ci 9.1:1cr
T4ST80 at ~11psi
dual nozzle alky control kit running pure meth
91 octane with a gallon or two of 110 mixed in a full tank
17* built into the tune

I have efi live and can add a couple degrees if I want. Ambient temps should be in the 75--85* range or cooler.

Whatcha think? I figured I'd be okay throwing a couple more in it if I need to shave a few hundreths
Give it an initial baseline run at the track on 17* and check the knock tables. If they look good (ie no knock) with a stable AFR (11.xx), then you can try a couple degrees. If it begins recording knock, get off the gas and bring it back to the previous 17*.

As a side point, I ran a fat 11.1 AFR on my STS, but bumped the timing to 20* safely. It was only 5PSI, but the principle is the same.

Good luck on the 9's. At least it's not raining where you are.....like here
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Old Oct 17, 2008 | 05:04 PM
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I am LOW 11.XX AFR too. I talked to my tuner and he said just go 1* at a time and I should be fine with 20. Can't up the boost because the tune is locked.
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Old Oct 17, 2008 | 05:04 PM
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I think you should be OK with the good fuel and meth.

Best of luck... got get them 9's
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Old Oct 17, 2008 | 05:26 PM
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what do you mean the tune is locked, are you saying that the tuner locked the PCM.
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Old Oct 17, 2008 | 05:33 PM
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Originally Posted by sevanseriesta
what do you mean the tune is locked, are you saying that the tuner locked the PCM.
correct
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Old Oct 17, 2008 | 05:56 PM
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How are you able to add timing but not boost if the tune is locked????

I run 12 psi with a fat afr. low 11 high 10 . and 20 deg. timing and strait meth. Going from 18 - 20 gave me 25 hp or so.

Im also stock motor
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Old Oct 17, 2008 | 06:01 PM
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Timing Tuner, or something to that sort
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Old Oct 17, 2008 | 06:04 PM
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with 16psi and 100 octane i'm 17 degrees at the tq peak and 23 at 7000.
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Old Oct 17, 2008 | 06:14 PM
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I thought you were going to the track today zombie
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Old Oct 17, 2008 | 06:27 PM
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Originally Posted by WJ MARK
How are you able to add timing but not boost if the tune is locked????
EFI live can add timing while it is running, but can not permanatly alter a locked tune.
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Old Oct 17, 2008 | 06:29 PM
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thats interesting, did not know that!
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Old Oct 17, 2008 | 06:35 PM
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hptuners does it as well...its in the bidirectional controls
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Old Oct 17, 2008 | 06:40 PM
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Originally Posted by sevanseriesta
I thought you were going to the track today zombie
I am, it doesn't open until 9pm though.
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Old Oct 17, 2008 | 06:48 PM
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Ohhh, you are 2 hours behind me.... My bad
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