Rolling Anti-Lag
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Joined: Jan 2020
Posts: 544
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From: Sydney
C63 S Coupe
rolling anti lag.... ahahahahaha
thank **** the c63s are still expensive here in australia which limits ownership to more respectful (& unvaxxed) people........ or we'd be all be deaf or squashed
thank **** the c63s are still expensive here in australia which limits ownership to more respectful (& unvaxxed) people........ or we'd be all be deaf or squashed
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From: San Francisco Bay Area
2019 C63CS
Ok, I bite. What exactly is rolling anti lag supposed to be? Anti lag keeps the turbos spooling for brief off throttle moments by continuing to burn fuel in the exhaust manifold. That's where the pops & bangs come from. If you are rolling, combustion is already happening so you have an exhaust stream spooling the turbos assuming you are in a low enough gear to have high enough rpms. What exactly do you wanna code in? There's nothing that can spool the turbos up besides the exhaust stream.
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Thread Starter
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Joined: Jan 2023
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From: Tennessee
19' GTC
Ok, I bite. What exactly is rolling anti lag supposed to be? Anti lag keeps the turbos spooling for brief off throttle moments by continuing to burn fuel in the exhaust manifold. That's where the pops & bangs come from. If you are rolling, combustion is already happening so you have an exhaust stream spooling the turbos assuming you are in a low enough gear to have high enough rpms. What exactly do you wanna code in? There's nothing that can spool the turbos up besides the exhaust stream.
Here is a link to get into more specifications and to educate others.
https://support.haltech.com/portal/e...anti-lag-elite
Out Of Control!!
Joined: Nov 2018
Posts: 11,401
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From: San Francisco Bay Area
2019 C63CS
Speed limited spooling while pressing whatever is coded for activation, probably the Home or OK button. Specifically i am wanting to do this for 40/50 roll racing, this is not for pops and bangs and to sound like a brokie with a VQ. Ms, Huracans, Audis and more all have the ability to use this for roll racing when coded in so i do not see the issue in trying to apply that to an AMG platform.
Here is a link to get into more specifications and to educate others.
https://support.haltech.com/portal/e...anti-lag-elite
Here is a link to get into more specifications and to educate others.
https://support.haltech.com/portal/e...anti-lag-elite
Senior Member
Joined: Dec 2017
Posts: 308
Likes: 71
From: Charlotte, NC
17 C63S Coupe PTG1000
For those of us with larger turbos, rolling anti lag for 40-50-60 rolls would be huge. Wondering if this can be built in to an ECU or TCU calibration. Holding a steering wheel button to activate would be incredible.
@PTG - thoughts on this for the m177?
@PTG - thoughts on this for the m177?
Senior Member
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From: Charlotte, NC
17 C63S Coupe PTG1000
Thread Starter
Junior Member
Joined: Jan 2023
Posts: 39
Likes: 8
From: Tennessee
19' GTC
i dont exactly think we are talking about the same thing but i also dont know much about EU models
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C63 Vert
@cls5504matic - do explain?
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From: Tennessee
19' GTC
Joined: Jul 2006
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From: Seattle
'19 E63S, ‘16 CLS63 RIP, '09 E63 Gone, '06 M5 Gone, '97 Supra TT Gone
Senior Member
Joined: Dec 2021
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From: Maryland
2018 C63s
Really big turbos somewhat mismatched to a street car could be made to spool remarkably quicker using other techniques from a roll, but not without risks (breakage, damage, etc..). Optimization like this is best done on a dyno as results can be observed in real time, and changes made very very quickly after calculating needs and better matching them to goals.
Joined: Jul 2006
Posts: 6,760
Likes: 594
From: Seattle
'19 E63S, ‘16 CLS63 RIP, '09 E63 Gone, '06 M5 Gone, '97 Supra TT Gone
****Yea, that's kind of my thinking as well. I have other platforms with *much* larger turbo(s) where "Rolling anti-lag" would be beneficial if it were something to be done through coding, but at least for automatic transmission cars we can adjust torque convertor slippage/lockup to optimize whatever turbos require to get into their sweet spot as quickly as possible along with timing curve and AFR ratios to hot burn and help spool the turbo(s), etc... There's definitely different ways of optimizing depending upon the platform and goals, and it is not always just a coding thing though a modern car like the C63s has more options available to do this than other older platforms which required more mechanical and traditional methods of reducing lag, etc..
Really big turbos somewhat mismatched to a street car could be made to spool remarkably quicker using other techniques from a roll, but not without risks (breakage, damage, etc..). Optimization like this is best done on a dyno as results can be observed in real time, and changes made very very quickly after calculating needs and better matching them to goals.
Really big turbos somewhat mismatched to a street car could be made to spool remarkably quicker using other techniques from a roll, but not without risks (breakage, damage, etc..). Optimization like this is best done on a dyno as results can be observed in real time, and changes made very very quickly after calculating needs and better matching them to goals.
