1st Time At the Track
07-31-2010, 12:58 PM
#1
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2007 E63
1st Time At the Track
Decided to keep my car after trying to sell it a few months ago. So to have some fun decided to take it to the track for the 1st time 
. Based on the info below how much improvement do you think I can get on the 1/4 time with practice? And is my car running as expected considering conditions?
Conditions: Temp 85-90 F, 15 min breaks between runs, San Antonio TX, No power breaking just "fast" gradual stepping on gas pedal. TC on (2-3 blinks during launch), Tires Hankook Evo V12, All stock except for CM30 IC pump.
Consistently ran 12.9s with a best of 12.8 below.
Reaction: .4518
60 FT: 2.0559
330 FT: 5.5070
1.8 ET: 8.3247
1/8 MPH: 87.04
1000 ET: 10.7619
1/4 ET: 12.8087
1/4 MPH: 110.59
Next time I will try break and gas to 1000 RPM at launch.
. Based on the info below how much improvement do you think I can get on the 1/4 time with practice? And is my car running as expected considering conditions?Conditions: Temp 85-90 F, 15 min breaks between runs, San Antonio TX, No power breaking just "fast" gradual stepping on gas pedal. TC on (2-3 blinks during launch), Tires Hankook Evo V12, All stock except for CM30 IC pump.
Consistently ran 12.9s with a best of 12.8 below.
Reaction: .4518
60 FT: 2.0559
330 FT: 5.5070
1.8 ET: 8.3247
1/8 MPH: 87.04
1000 ET: 10.7619
1/4 ET: 12.8087
1/4 MPH: 110.59
Next time I will try break and gas to 1000 RPM at launch.
07-31-2010, 02:28 PM
#2
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You will get better with practice,i took mine to the track last night too.my best times is with the car in s2 and tranny in s D with traction control on.
Also do a tcu reset a day before you go,i did mine last night and for some reason it paused on the 2nd to 3rd gear shift so if you reset it give it some time to adjust.
Also do a tcu reset a day before you go,i did mine last night and for some reason it paused on the 2nd to 3rd gear shift so if you reset it give it some time to adjust.
07-31-2010, 03:00 PM
#3
Those numbers would be about right if the DA is really high. Use the DA calculator at dragtimes to get an idea of what the DA was. You can also use online 0' DA correction calculators for a guesstimate of what your ET and traps should be in 0' DA but they're not always accurate.
07-31-2010, 06:18 PM
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2007 E63
Thanks for the notes. I'll definitely try the TCU reset next time.
When to dragtimes and came up with below information:
DA: 2053
Stock and Mildly Modified Naturally Aspirated Engines
12.497 @ 112.733 MPH
Extensively Modified Naturally Aspirated Engines
12.611 @ 111.78 MPH
Extensively Modified Supercharged and Turbocharged Engines
12.692 @ 110.937 MPH
Those numbers would be about right if the DA is really high. Use the DA calculator at dragtimes to get an idea of what the DA was. You can also use online 0' DA correction calculators for a guesstimate of what your ET and traps should be in 0' DA but they're not always accurate.
DA: 2053
Stock and Mildly Modified Naturally Aspirated Engines
12.497 @ 112.733 MPH
Extensively Modified Naturally Aspirated Engines
12.611 @ 111.78 MPH
Extensively Modified Supercharged and Turbocharged Engines
12.692 @ 110.937 MPH
07-31-2010, 10:25 PM
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not bad for summer runs..
85 to 90F, plus factor the asphalt heat and humidity of San Antonio...
at 90F.. your IC coolant at best is 20F above when the car is moving and receiving air at crusings speeds.
slow cruise at 25mph or idling will slowly bring IC temps even higher.. about 30F + above ambient
Therefore at the line.. you already at 120F and after you reach 140F probably at the start of of your run, engine starts making less power and the higher you go..
Aside from modding with H/E, splitting the IC sys, or bigger pump...
I would make sure the IC system is properly bled of air bubbles and probably remove the plastic vent under the hood to allow for heat to move out of the engine bay. Bags of ice to cool down the Supercharger during runs.
thanks for posting.
85 to 90F, plus factor the asphalt heat and humidity of San Antonio...
at 90F.. your IC coolant at best is 20F above when the car is moving and receiving air at crusings speeds.
slow cruise at 25mph or idling will slowly bring IC temps even higher.. about 30F + above ambient
Therefore at the line.. you already at 120F and after you reach 140F probably at the start of of your run, engine starts making less power and the higher you go..
Aside from modding with H/E, splitting the IC sys, or bigger pump...
I would make sure the IC system is properly bled of air bubbles and probably remove the plastic vent under the hood to allow for heat to move out of the engine bay. Bags of ice to cool down the Supercharger during runs.
thanks for posting.
08-01-2010, 03:46 PM
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2007 E63
I was looking athe Evosport packages. Which is better bang for the buck?
Evosport Stg1 or Evosport HE? Same price on their website. I guess is there much benefit to a Stg1 if we keep losing power due to temps. Also there are no MB tuners in Austin...so don't want my engine blowing up due to bad pulley install. I figure the HE is less risky.
Evosport Stg1 or Evosport HE? Same price on their website. I guess is there much benefit to a Stg1 if we keep losing power due to temps. Also there are no MB tuners in Austin...so don't want my engine blowing up due to bad pulley install. I figure the HE is less risky.
not bad for summer runs..
85 to 90F, plus factor the asphalt heat and humidity of San Antonio...
at 90F.. your IC coolant at best is 20F above when the car is moving and receiving air at crusings speeds.
slow cruise at 25mph or idling will slowly bring IC temps even higher.. about 30F + above ambient
Therefore at the line.. you already at 120F and after you reach 140F probably at the start of of your run, engine starts making less power and the higher you go..
Aside from modding with H/E, splitting the IC sys, or bigger pump...
I would make sure the IC system is properly bled of air bubbles and probably remove the plastic vent under the hood to allow for heat to move out of the engine bay. Bags of ice to cool down the Supercharger during runs.
thanks for posting.
85 to 90F, plus factor the asphalt heat and humidity of San Antonio...
at 90F.. your IC coolant at best is 20F above when the car is moving and receiving air at crusings speeds.
slow cruise at 25mph or idling will slowly bring IC temps even higher.. about 30F + above ambient
Therefore at the line.. you already at 120F and after you reach 140F probably at the start of of your run, engine starts making less power and the higher you go..
Aside from modding with H/E, splitting the IC sys, or bigger pump...
I would make sure the IC system is properly bled of air bubbles and probably remove the plastic vent under the hood to allow for heat to move out of the engine bay. Bags of ice to cool down the Supercharger during runs.
thanks for posting.
08-03-2010, 08:01 PM
#7
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None fast enough!
Stage 1 will get you more bang for sure. In the TX heat, the HE may be the way to go. But at night or winter/fall you will get more value from the stage1.
thanks
Brad
thanks
Brad
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08-03-2010, 08:37 PM
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2007 E63, 2005 Dodge Ram Hemi
There's a few good MB shops in Austin...Not tuners so much, but I'd trust their work...Hell there aren't any actual tuners in Dallas that I know of, but I'd trust my shop to do anything on my car...And yeah 85-90 in the evening means 97-105 during the day here, heat soaking the hell out of the tarmac...
08-03-2010, 10:19 PM
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There's a few good MB shops in Austin...Not tuners so much, but I'd trust their work...Hell there aren't any actual tuners in Dallas that I know of, but I'd trust my shop to do anything on my car...And yeah 85-90 in the evening means 97-105 during the day here, heat soaking the hell out of the tarmac...
