Pontiac G8 2008-09 & Chevrolet SS 2014+ LSX based RWD 4-door sedans

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Old 09-09-2009, 12:18 AM
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how much does patrick charge for the tune and how much for re tunes? i jus dont get it. isnt this car supposed to run mid to high 13s stock could it be cause i am runnin 87 octane? If i run one tank of 93 to run this weekend would it mess it up if i went back to 87 next time i fill up?
Old 09-10-2009, 02:39 PM
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Mine ran 13.70s with a 2.08 60 just off idle, traction controll on. 1800 DA
Old 09-10-2009, 02:48 PM
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Originally Posted by Darracq
Mine ran 13.70s with a 2.08 60 just off idle, traction controll on. 1800 DA
you would probably do a 13.5 with the traction control off. Did you run on Sport mode or Drive.
Old 09-10-2009, 03:47 PM
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yea if i run in sport mode where exactly should i shift at?
Old 09-10-2009, 09:10 PM
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bone stock and/or a tuned with basic mods CAI exhaust - Drive w/ tc off gives you better results - dont base your self by sport mode having higher RPMs. I thought the same but when I tested Drive vs Sport mode tc off - same day same track w/ 20 mins in between (3times each mode) Drive w/ tc off was 2 tenth faster in the 1/8 mile.
Old 09-17-2009, 03:56 AM
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At the same track (edinburg) I ran a 13.2 bone stock on my GXP. I cant wait till patrick gets a hold of it and tunes it to see what it will run. Plus my headers and CAI just came in so this should be a little interesting...
Old 09-17-2009, 05:42 AM
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Originally Posted by black widow g8gt
yea if i run in sport mode where exactly should i shift at?
If it's in sports mode it should shift automatically for u. Tune n vararam turn it into a completely different car. Practice also helps.

Last edited by 09gtt; 09-17-2009 at 05:50 AM.
Old 09-17-2009, 07:37 AM
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Originally Posted by black widow g8gt
how much does patrick charge for the tune and how much for re tunes? i jus dont get it. isnt this car supposed to run mid to high 13s stock could it be cause i am runnin 87 octane? If i run one tank of 93 to run this weekend would it mess it up if i went back to 87 next time i fill up?
There are plenty of stock G8s that have run mid 13's .

Last edited by Devilish34; 09-22-2009 at 08:33 PM.
Old 09-17-2009, 06:12 PM
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yea i thought it would shift automatically also cause that is how my chrysler was but it doesnt if u dont shift up it doesnt shift. are they all like this or is mine messed up?
Old 09-17-2009, 09:06 PM
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Originally Posted by black widow g8gt
yea i thought it would shift automatically also cause that is how my chrysler was but it doesnt if u dont shift up it doesnt shift. are they all like this or is mine messed up?
Did you put it in Manual or Sport?
Old 09-17-2009, 09:23 PM
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whats it called when i move the shifter to the right and shift it myself?
Old 09-18-2009, 01:22 AM
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Originally Posted by black widow g8gt
whats it called when i move the shifter to the right and shift it myself?
When u just move it over to the right it is in sports mode. If u move it to the right n tap it up or down that's manual mode. I would just use sport mode when ur at the track. Just move it to the right and don't tap it up or down. That will leave it in sport mode where it shifts for u.
Old 09-18-2009, 06:43 PM
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yea man i was messin around with it yesterday to try and figure it out and i got it. i am gonna do one run tonite in sport mode and one run in manual shifting at 5500 rpm.
Old 09-18-2009, 10:38 PM
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Originally Posted by black widow g8gt
whats it called when i move the shifter to the right and shift it myself?
Slow Mode
Old 09-19-2009, 12:46 AM
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well i ran tonight i ran a 14.127 at 101 mph and the 60 foot time 2.187 in sport mode and i ran a 14.029 at 102 mph 60 foot time 2.129 in manual mode still kinda hot and humid was around 82 degrees do you think i could get a 13.9 when a cold front comes in and i will have my vararam intake then also?
Old 09-21-2009, 06:41 PM
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any input fellas?
Old 09-22-2009, 10:26 AM
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My fastest times have come on regular Drive T/C off and power braked and launched at 1300rpms. As for me I think its about 2 tenths faster on regular Drive than Sportsmode. It feels stronger because the RPMs are higher but it doesn't do anything if you are stock or has minor mods.

Drop your tire pressure to about 28psi (rear tires only) - regular Drive T/C off & launch at around 1200-1300 rpms - 1/4 tank of gas only
Old 09-22-2009, 08:34 PM
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What was the track DA?
Old 10-08-2009, 04:59 PM
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ok so i ran again last night i am happy with my time does anyone think it should be better or is it average? 60 foot 2.110 E.T. 13.927 at 103.613 please let me know i would like to hear what yall think about this time...
Old 10-08-2009, 10:26 PM
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Originally Posted by black widow g8gt
ok so i ran again last night i am happy with my time does anyone think it should be better or is it average? 60 foot 2.110 E.T. 13.927 at 103.613 please let me know i would like to hear what yall think about this time...
I think you'll be amazed how much power you pick up with a tune.
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