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Drag racing with FL C63

 
Old 12-21-2017, 03:14 PM
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Drag racing with FL C63

The guys that drag on a prepped track with their FL C63's.
Do you launch using the launch control function, or do you turn the traction control completely off and modulate the throttle yourself?
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Old 12-21-2017, 03:24 PM
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No launch control it sucks. Heat tires well. Traction on Sport. Brake boost - floor the gas while standing on the brake - as soon as it hits 3k rpm release brake. That’s been good for 1.7x 60’ times on street tires for me and is good enough. My experience with TC off on street tires wheel hops like crazy and stresses the drivetrain more than I’d like - I’ve already broken one axle, no thanks again. Slicks same as above but TC off.

Last edited by BLKROKT; 12-21-2017 at 03:28 PM.
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Old 12-21-2017, 03:47 PM
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Thanks for the info Blkrokt.
I've only run on a unprepared track, and there was no traction. I tried launch control, and it was useless. Then I tried Sport mode, but I found the lack of traction made the car cut power as it always wanted to spin. I found TC off to be best on a unprepared surface.
I'm using Yokohama Advan AD08 semi slicks. Running for the first time on a prepped track.
Will try sport mode, and launching at 3k.
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Old 12-21-2017, 03:48 PM
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Do you shift in manual, or run in Sport + and let the car shift.
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Old 12-21-2017, 03:57 PM
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All manual. Hit the paddle about 500rpm before redline as there’s a lag. Sport+ tends to short-shift.
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Old 12-21-2017, 04:27 PM
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Originally Posted by BLKROKT View Post
No launch control it sucks. Heat tires well. Traction on Sport. Brake boost - floor the gas while standing on the brake - as soon as it hits 3k rpm release brake. Thatís been good for 1.7x 60í times on street tires for me and is good enough. My experience with TC off on street tires wheel hops like crazy and stresses the drivetrain more than Iíd like - Iíve already broken one axle, no thanks again. Slicks same as above but TC off.
You broke an axle on street tires?
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Old 12-21-2017, 04:33 PM
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The rpm lag on the shifting is a pain in the ***. You've always got to remember to shift before the redline.
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Old 12-21-2017, 04:34 PM
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Originally Posted by MTV10 View Post
You broke an axle on street tires?
That's pretty hectic. The back end feels quite solid on these cars. Didn't think you would break anything on street tyres.
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Old 12-21-2017, 05:53 PM
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With Hoosiers my best 60' / et was in dyno mode & sport plus. I did some runs and tried both manual and sport +, with + giving the best et's. Next I'm going to try a quick brake boost to see if it helps.
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Old 12-21-2017, 06:17 PM
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Originally Posted by MTV10 View Post
You broke an axle on street tires?
Originally Posted by Savage-wp View Post
That's pretty hectic. The back end feels quite solid on these cars. Didn't think you would break anything on street tyres.
Yup
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Old 12-21-2017, 07:08 PM
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Sorry forgot one other point. 24psi cold in the rear tires. And get them real hot.
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Old 12-22-2017, 04:41 AM
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Originally Posted by Savage-wp View Post
The rpm lag on the shifting is a pain in the ***. You've always got to remember to shift before the redline.
You should be used to it by now.
It became second nature to me eventually.
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Old 12-22-2017, 11:05 AM
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Originally Posted by Savage-wp View Post
That's pretty hectic. The back end feels quite solid on these cars. Didn't think you would break anything on street tyres.
it does seem solid and I was surprised to snap my driveshaft in half at the track.
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Old 12-22-2017, 04:37 PM
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Originally Posted by Schulminator View Post
With Hoosiers my best 60' / et was in dyno mode & sport plus. I did some runs and tried both manual and sport +, with + giving the best et's. Next I'm going to try a quick brake boost to see if it helps.
What size Hoosiers are you running?
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Old 12-22-2017, 05:28 PM
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I used race start on PSS tires and hit consistent 1.7x 60' bone stock. I'll stick with that...
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Old 12-22-2017, 07:07 PM
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W212 - E63 AMG
3000rpm?!

With my foot on the brakes, the most mine revs to is like...1200 or 1300, if that
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Old 12-22-2017, 07:57 PM
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Originally Posted by Celicasaur View Post
3000rpm?!

With my foot on the brakes, the most mine revs to is like...1200 or 1300, if that
I donít know if itís 3k exactly but itís definitely more than 1500. Maybe 2500? You canít do it for more than 2sec or so or else it will go into some sort of failsafe mode and bog flat on its face. So whatever it gets to when I floor the gas and count to one Mississippi is what I launch at. Sorry if itís not more scientific.
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Old 12-23-2017, 08:04 AM
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Originally Posted by Savage-wp View Post
What size Hoosiers are you running?
225/50 16 on clk wheels
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Old 12-25-2017, 03:21 PM
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W212 - E63 AMG
Originally Posted by BLKROKT View Post


I donít know if itís 3k exactly but itís definitely more than 1500. Maybe 2500? You canít do it for more than 2sec or so or else it will go into some sort of failsafe mode and bog flat on its face. So whatever it gets to when I floor the gas and count to one Mississippi is what I launch at. Sorry if itís not more scientific.
So last night I tried this again and would you believe it...with my foot a little harder on the pedal, it actually does go up past 2500 to around 3000rpm or so. I can't believe it took over 2.5 years of ownership to figure this out
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Old 12-26-2017, 01:28 AM
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Originally Posted by Schulminator View Post
225/50 16 on clk wheels
I thought 17's were the smallest rims you could fit at the back.
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Old 12-26-2017, 01:29 AM
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Originally Posted by Celicasaur View Post
So last night I tried this again and would you believe it...with my foot a little harder on the pedal, it actually does go up past 2500 to around 3000rpm or so. I can't believe it took over 2.5 years of ownership to figure this out
LOL. We learn something new every day.
Will be giving this a bash tomorrow.
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Old 12-26-2017, 09:32 AM
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Originally Posted by Savage-wp View Post
I thought 17's were the smallest rims you could fit at the back.
Nope, 20mm spacers and they fit w/o any issue.
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Old 12-26-2017, 11:41 AM
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Originally Posted by Schulminator View Post
Nope, 20mm spacers and they fit w/o any issue.
and maybe with rear calipers off a regular W204.
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Old 12-26-2017, 02:39 PM
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Originally Posted by Mort View Post
and maybe with rear calipers off a regular W204.
Fits right over oem calipers.... wheels/20mm spacers/longer bolts.... done!
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Old 12-26-2017, 02:41 PM
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Originally Posted by Celicasaur View Post
So last night I tried this again and would you believe it...with my foot a little harder on the pedal, it actually does go up past 2500 to around 3000rpm or so. I can't believe it took over 2.5 years of ownership to figure this out
Nice.... I'll try this at the strip next time.
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