turbo lag....
Super Member
Joined: Jul 2009
Posts: 520
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From: Toronto
2014 Lotus Evora S
I'm not an expert but I don't think that the lag that is discussed above is the turbo per se. It's the lack of immediate throttle response which may have to do with the programming of something. This issue has gone away with my ecu tune. The only situation I can still experience a lag is by flooring it very quickly (I mean a fraction of a second), the engine won't react at all but the tranny will downshift in S+, but this has no practical implication for me.
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From: THE Orange County, California
2024 C8 Z06- 2025 BMW CS- 2022 Porsche 992 GTS
Obviously a turbo takes time to spool up but those times have been greatly reduced with variable geometry items... there will always be some sort of measurable delay vs a normally aspirated engine. But ECU adjustments can assist here greatly.
I dont really mind any such perceived delay because while there might just be a minute amount felt in regards to delay- the other cars on the street have what we might call "acceleration lag" LOL
I dont really mind any such perceived delay because while there might just be a minute amount felt in regards to delay- the other cars on the street have what we might call "acceleration lag" LOL
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Joined: May 2007
Posts: 405
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From: California
CLS55
Obviously a turbo takes time to spool up but those times have been greatly reduced with variable geometry items... there will always be some sort of measurable delay vs a normally aspirated engine. But ECU adjustments can assist here greatly.
I dont really mind any such perceived delay because while there might just be a minute amount felt in regards to delay- the other cars on the street have what we might call "acceleration lag" LOL
I dont really mind any such perceived delay because while there might just be a minute amount felt in regards to delay- the other cars on the street have what we might call "acceleration lag" LOL
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Joined: Nov 2001
Posts: 12,263
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From: THE Orange County, California
2024 C8 Z06- 2025 BMW CS- 2022 Porsche 992 GTS
True Throttle Control (3 settings)
True Shift Speeds (3 settings)
LSD Control (aka ESP)
And the DCT itself seems to grab quicker thru the gears. BMW has always had the touchiest of throttles IMHO and the M5 with its turbos definitely needs it. I was driving my 997TT around with PDK for about 30 miles and then flipped to the M5--- the M5 is more response; not faster or quicker but the initial surge is more prevalent.
Thread Starter
Super Member
Joined: Dec 2011
Posts: 921
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From: Edmonton alberta, canada.
Porsche 991 GT3, 2012 cls63 Kleemann K3
The M5 has a better response vs the M157 (tuned or not)... this has alot to do with the ECU and its mapping along with the multitude of controls:
True Throttle Control (3 settings)
True Shift Speeds (3 settings)
LSD Control (aka ESP)
And the DCT itself seems to grab quicker thru the gears. BMW has always had the touchiest of throttles IMHO and the M5 with its turbos definitely needs it. I was driving my 997TT around with PDK for about 30 miles and then flipped to the M5--- the M5 is more response; not faster or quicker but the initial surge is more prevalent.
True Throttle Control (3 settings)
True Shift Speeds (3 settings)
LSD Control (aka ESP)
And the DCT itself seems to grab quicker thru the gears. BMW has always had the touchiest of throttles IMHO and the M5 with its turbos definitely needs it. I was driving my 997TT around with PDK for about 30 miles and then flipped to the M5--- the M5 is more response; not faster or quicker but the initial surge is more prevalent.
by the way, if you had to give up one of the f10 m5 or the CBS, which would it be?
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From: THE Orange County, California
2024 C8 Z06- 2025 BMW CS- 2022 Porsche 992 GTS
The CBS is the best AMG Ive ever owned (7 total)... but its not a daily driver so if I only had 1 car the M5 would prevail. Its not as fun to drive but its practical and more comfortable.
The CBS has excellent throttle response--- AMG tweaked it right
Thread Starter
Super Member
Joined: Dec 2011
Posts: 921
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From: Edmonton alberta, canada.
Porsche 991 GT3, 2012 cls63 Kleemann K3
why is the CBS not a daily driver? what seats did you get?
obviously the m5 has the better seats.
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From: Kuwait
CLS55 2006, CLS 63S 2015
Administrator
Joined: Nov 2001
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From: THE Orange County, California
2024 C8 Z06- 2025 BMW CS- 2022 Porsche 992 GTS
Thank you.
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Joined: Oct 2011
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From: Dallas, TX
SL63
I tried it with a regular GT3, wasn't a DD but I tried to drive it a few times a week. Yeah that didn't work out. Sold it. I can only imagine how rough a RS would have been. Leave the track toys to the track where they belong and not gripe when they're used as something they're not.
Thread Starter
Super Member
Joined: Dec 2011
Posts: 921
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From: Edmonton alberta, canada.
Porsche 991 GT3, 2012 cls63 Kleemann K3
Your a flip flopper arn't you
One day cls63 is da sht, next it crap and M5 is da ****. Now the M5 is not as high and mighty as you had hoped and it's a pana GTS...ow but wait AWD 63 biturbo S
but it is your opinion and your cash to choose on which car to get, so wish you the best which ever way you go
don't mind me
One day cls63 is da sht, next it crap and M5 is da ****. Now the M5 is not as high and mighty as you had hoped and it's a pana GTS...ow but wait AWD 63 biturbo S
but it is your opinion and your cash to choose on which car to get, so wish you the best which ever way you go
don't mind me
Thread Starter
Super Member
Joined: Dec 2011
Posts: 921
Likes: 14
From: Edmonton alberta, canada.
Porsche 991 GT3, 2012 cls63 Kleemann K3
have you thought about tuning the CBS?
Member
Joined: Sep 2012
Posts: 233
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From: Texas Hill Country
2020 AMG GTR
ESP causes your car to slow down. It senses wheel speed variations between the four wheels and uses the brakes to equalize them and reduces engine power if necessary. Brakes and less engine power can only equal slower. This is a computer contolled system using existing automotive systems normally used for other actions (stopping and acceleration)
A limited slip differential simply allows power to be delivered to both wheels no matter what the situation is with the car or other wheel(s). Without an LSD if a wheel loses traction, power will be transmitted to it through the path of least resistance causing even more wheelspin. With an LSD, which is a physical mechanical device in the differential (surprise surprise) the power will be transmitted to both wheels (percentage dependent on lsd type and settings/setup) causing some or all of the engine power to be routed to the wheel with traction, propelling the vehicle down the track (or road for most). Basically, anytime you lose traction, this will help you continue to put the power down. It does not straighten out the fishtail (like ESP can do). If you can't put the power down, you are not changing locations (ie, moving forward).
