2014 E63 AMG S is faster with traction off
12-10-2017, 02:52 AM
#1
Member
Thread Starter
2014 E63 AMG S is faster with traction off
I don't know why but I'm much faster with traction off ...has anybody else experienced the same?
When I roll race or dig race the car pulls harder with traction off...from a dig leaving in 1st using RS (traction in Sport) the car bogs down and when shifting in 2nd it bogs down again ...but when
doing it with traction off I'm much faster It does spins the tires sometimes when I leave at 3k rpm so I have to time it right around 2600-2800 rpm not to spin and to get a good start.
I raced a buddy of mine he has the 2018 X6 M with the Dinan stage 1 tuned for 93 octane and he used to have me about half to a car length each time we raced in the quarter.... but with traction off I pull on him a car to two cars in the quarter mile...
also from a roll...I used to pull on him about a 1-2 car lengths now with traction off I pull 4-5 car lengths from a roll...does anybody know why ?
I'm guessing it has to do with the traction turning on and taking away power trough the shifts....I could feel it especially in 2nd....
2014 E63 AMG S CKS DOWNPIPES, UDP AIR INTAKE SPACERS WITH HIGH FLOW FILTERS AND EUROCHARGED 91 OCTANE TUNE (2nd ECU WITH RACE GAS TUNE COMMING SOON)
When I roll race or dig race the car pulls harder with traction off...from a dig leaving in 1st using RS (traction in Sport) the car bogs down and when shifting in 2nd it bogs down again ...but when
doing it with traction off I'm much faster It does spins the tires sometimes when I leave at 3k rpm so I have to time it right around 2600-2800 rpm not to spin and to get a good start.
I raced a buddy of mine he has the 2018 X6 M with the Dinan stage 1 tuned for 93 octane and he used to have me about half to a car length each time we raced in the quarter.... but with traction off I pull on him a car to two cars in the quarter mile...
also from a roll...I used to pull on him about a 1-2 car lengths now with traction off I pull 4-5 car lengths from a roll...does anybody know why ?
I'm guessing it has to do with the traction turning on and taking away power trough the shifts....I could feel it especially in 2nd....
2014 E63 AMG S CKS DOWNPIPES, UDP AIR INTAKE SPACERS WITH HIGH FLOW FILTERS AND EUROCHARGED 91 OCTANE TUNE (2nd ECU WITH RACE GAS TUNE COMMING SOON)
12-10-2017, 12:55 PM
#3
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Sport mode is supposed to allow some tire slip but my car still pulls power badly during shifts. I’d like to see 1/4mile times with traction on vs off.
12-10-2017, 04:40 PM
#4
Makes sense since no computer intervention amd with 4wd should bet much better acceleration.
12-10-2017, 10:24 PM
#5
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2014 E63S; AMS 100 octane ecu tune; edok tcu tune; BB intakes; dyno tuned
I am still waiting for timeslips with dyno mode
12-11-2017, 11:41 AM
#6
MBWorld Fanatic!
Why isnt everybody racing the car with traction completely off if its making this big of a difference, thats the question
Dangerous maybe?
Dangerous maybe?
12-11-2017, 11:46 AM
#7
From a dig, on tuned M157 cars with AWD, traction off is definitely faster (don't use race start)...brake boost to highest rpm your car (tune) will let you go without shutting you down, and then go. From a roll, with these AWD cars, traction is not much of an issue, so again, definitely traction off.
edit: from a dig on a prepped track, brake boost....this won't work as well on non-prepped surfaces, as you will spin all 4 tires
edit: from a dig on a prepped track, brake boost....this won't work as well on non-prepped surfaces, as you will spin all 4 tires
Last edited by Ralcbah; 12-11-2017 at 11:59 AM.
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12-11-2017, 12:56 PM
#9
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12-11-2017, 07:19 PM
#10
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2014 E63S; AMS 100 octane ecu tune; edok tcu tune; BB intakes; dyno tuned
12-11-2017, 09:45 PM
#11
12-12-2017, 03:09 PM
#12
MBWorld Fanatic!
From a dig, on tuned M157 cars with AWD, traction off is definitely faster (don't use race start)...brake boost to highest rpm your car (tune) will let you go without shutting you down, and then go. From a roll, with these AWD cars, traction is not much of an issue, so again, definitely traction off.
edit: from a dig on a prepped track, brake boost....this won't work as well on non-prepped surfaces, as you will spin all 4 tires
edit: from a dig on a prepped track, brake boost....this won't work as well on non-prepped surfaces, as you will spin all 4 tires
12-12-2017, 03:42 PM
#13
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Thread Starter
The races that I mentioned in my original post were done on the street . From a roll expect 3-5 car lengths to be ahead then what you are now and from a dig in the 1/4 mile up to .2 tenths of a second. Now I have not done the dyno mode on the car while racing just had the traction off...I'd like to keep my abs on for safety while racing of course but there is a difference...from researching and talking to a few different tuners and people that have same cars they all think the same and the reason for that is that the engine ecu doesn't cut power during shifts therefore more power available each time you shift which adds up to a huge difference. The ecu cuts power on each shift so that the sift would be smooth..but with traction off it doesn't do it.
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Amg63- (12-13-2017)
12-13-2017, 11:46 AM
#15
MBWorld Fanatic!
The races that I mentioned in my original post were done on the street . From a roll expect 3-5 car lengths to be ahead then what you are now and from a dig in the 1/4 mile up to .2 tenths of a second. Now I have not done the dyno mode on the car while racing just had the traction off...I'd like to keep my abs on for safety while racing of course but there is a difference...from researching and talking to a few different tuners and people that have same cars they all think the same and the reason for that is that the engine ecu doesn't cut power during shifts therefore more power available each time you shift which adds up to a huge difference. The ecu cuts power on each shift so that the sift would be smooth..but with traction off it doesn't do it.
I have a feeling dyno mode wouldnt result in anything faster, i dont see how ABS would interfere, plus going that far with so much power could be risky for sure.
Why does having TC on cut the power on the shifts? If this isnt necessary to keep the car from slipping, then why is the computer doing that? Is the point of traction to make the car feel "smooth" or keep it stable on the road?
12-14-2017, 04:52 AM
#16
Member
Thread Starter
Its crazy just how big of a difference you get from simply pushing the traction button.
I have a feeling dyno mode wouldnt result in anything faster, i dont see how ABS would interfere, plus going that far with so much power could be risky for sure.
Why does having TC on cut the power on the shifts? If this isnt necessary to keep the car from slipping, then why is the computer doing that? Is the point of traction to make the car feel "smooth" or keep it stable on the road?
I have a feeling dyno mode wouldnt result in anything faster, i dont see how ABS would interfere, plus going that far with so much power could be risky for sure.
Why does having TC on cut the power on the shifts? If this isnt necessary to keep the car from slipping, then why is the computer doing that? Is the point of traction to make the car feel "smooth" or keep it stable on the road?
Best way to prove this is to find someone with a car that's as fast as yours...then do a few runs from a dig and roll with them in TC OFF and TC SPORT OR ON and see the difference...if you find someone with a much slower car or much faster car it'll be hard to see the difference
Last edited by 727E63AMG; 12-14-2017 at 04:58 AM.
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Amg63- (12-14-2017)
12-14-2017, 12:07 PM
#17
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The TC on cuts the power to prevent wheel spin, not sure on the technical data and at what TQ level it does it but maybe one of the tuners can chime in and let us know ,but from what I found out if there is a high force(TQ level) while shifting the ecu will cut the power to prevent wheel spin....our cars being as powerfull as they are it happens in every hard acceleration pretty much. The ecu/tcu is also programmed to make the shifts smoother adjusting power/tq levels so that the shifting doesn't feel jerky or uncomfortable. As for your second question I'd say it is to make the car stable on the road..preventing spin of wheel and loosing control.
Best way to prove this is to find someone with a car that's as fast as yours...then do a few runs from a dig and roll with them in TC OFF and TC SPORT OR ON and see the difference...if you find someone with a much slower car or much faster car it'll be hard to see the difference
Best way to prove this is to find someone with a car that's as fast as yours...then do a few runs from a dig and roll with them in TC OFF and TC SPORT OR ON and see the difference...if you find someone with a much slower car or much faster car it'll be hard to see the difference
03-18-2018, 11:41 PM
#18
MBWorld Fanatic!
so just wondering, if we concluded that traction off makes the car faster both from a roll and a dig, then why doesn’t the 1/4 mile times show any improvement in ET or trap speed when you ran it that way?
03-19-2018, 02:35 PM
#19
08-07-2019, 05:11 PM
#21
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