Will a tune help? Ziptie mod?
Thread Starter
Pro
Joined: Oct 2007
Posts: 632
Likes: 2
From: Columbus Ohio
Will a tune help? Ziptie mod?
Hey all,
First time at the track with my dad's 08 C6 Coupe. It is bone stock other than a wireless switch for the NPP exhaust. He has an A6 with performance rear gear and factory runflat tires at 40-42 front and 25-27 rear (hot)... almost 5000 miles.
We ran it 14 times with a MPH range of 110.5 to 114.17 and ET range of 12.649 to 13.391. 60' range of 1.927 to 2.372 (traction control on for latter) Most runs were with traction control off, letting transmission shift itself, sport mode, we varied launch rpm. The traction this car gets on street tires is AMAZING. We were brake launching it at 1400-1500 and it would either dead hook or spin very briefly than pull like a monster. If we left off idle we got some sort of a bog feeling after a light tire spin before the power kicked in... Is this torque management at work? It also seemed like it did this boggy feeling more after a few runs and the car got "heat soaked"? We couldn't figure out how to rig the fans like my c5z and didn't have any ice- coolant temps ranged from 203-223..
Here is the best run:
60': 2.082
330: 5.530
1/8: 8.301
MPH: 88.63
1000: 10.668
1/4: 12.649
MPH: 114.17
What do you think we can do better or change? (other than weather conditions it was probably 70 degrees? Thoughts?
I wish my bone stock c5z would hook like this car!
Thanks!
First time at the track with my dad's 08 C6 Coupe. It is bone stock other than a wireless switch for the NPP exhaust. He has an A6 with performance rear gear and factory runflat tires at 40-42 front and 25-27 rear (hot)... almost 5000 miles.
We ran it 14 times with a MPH range of 110.5 to 114.17 and ET range of 12.649 to 13.391. 60' range of 1.927 to 2.372 (traction control on for latter) Most runs were with traction control off, letting transmission shift itself, sport mode, we varied launch rpm. The traction this car gets on street tires is AMAZING. We were brake launching it at 1400-1500 and it would either dead hook or spin very briefly than pull like a monster. If we left off idle we got some sort of a bog feeling after a light tire spin before the power kicked in... Is this torque management at work? It also seemed like it did this boggy feeling more after a few runs and the car got "heat soaked"? We couldn't figure out how to rig the fans like my c5z and didn't have any ice- coolant temps ranged from 203-223..
Here is the best run:
60': 2.082
330: 5.530
1/8: 8.301
MPH: 88.63
1000: 10.668
1/4: 12.649
MPH: 114.17
What do you think we can do better or change? (other than weather conditions it was probably 70 degrees? Thoughts?
I wish my bone stock c5z would hook like this car!
Thanks!
Thread Starter
Pro
Joined: Oct 2007
Posts: 632
Likes: 2
From: Columbus Ohio
sorry on the ziptie mod bit- that is a carry over from my c5 z06- common modification in which you remove the top of the air box and then use a zip tie to retain the filter to the lower half- supposed to be worth 20 rwhp... anyhow- looking for little things like that on the ls3-
. I could see it now.. One of the famous vendors charging $300 for the zip tie
Race Director
Joined: Mar 2005
Posts: 10,399
Likes: 26
From: Austin Texas
hpfiend; The only thing that will help is low DA (barometric pressure high, low humidity, low elevation), coolant temp lowered, intake air temp lower (maybe). The car hooks because the Torque Management is working, call it Launch Control if that will make you feel better.
A tune will help but you lose Warranty and should re-tune after every mod (Expensive!).
A tune will help but you lose Warranty and should re-tune after every mod (Expensive!).
Last edited by haljensen; Nov 5, 2009 at 11:15 AM.
