Renntech Tune For Cls550
05-29-2012, 05:39 PM
#27
Super Member
Steve, the guy who drives the 9 and 10 second Benz's and also , (I believe ) the 11 sec CLS63 AMG took mine down a few times and got to 12.3. It was getting late and the conditions were very warm and humid.
This was with tune only. With a few more trips to the track and different tires and of course other mods no doubt the car will be in the 11's. DYNO RWHP 436 TQ 510.
This was with tune only. With a few more trips to the track and different tires and of course other mods no doubt the car will be in the 11's. DYNO RWHP 436 TQ 510.
6 Sp Manual ZL1
MT - 12.1 @ 117 mph
C&D - 12.3 @ 119 mph
R&T - *12.9 @ 113.1 mph
But ZL-1 with a tune will run in the 11's.
What size and kind of tires were you using?
Wonder what kind of time your car would run with drag radials?
Last edited by Dueclaws; 05-29-2012 at 07:28 PM.
05-29-2012, 11:01 PM
#28
Junior Member
Join Date: Mar 2011
Location: Naples
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CLS 550 RWD Storm Red
Stock 285 30 19 Pirelli P-Zero. As you noted before the car should really have come with a limited slip diff. With that and drag radials mid 11's.
06-04-2018, 11:00 PM
#30
First post - had the renntech tune for my 2012 cls. The car is crazy fast - renntech is coming out with carbon fiber diffusers and an exhaust upgrade soon. But ill wait for the meisterschaft. my wife threw away my dyno runs thinking it was garbage - i think i took a picture of it on my iphone. will try to post if i can figure out how toput pictures up.
Guys, called RENNtech today and I have the option of sending them the ECU unit myself or having it handled by the MB dealer where I bought it. As they explained, though it’ll cost a bit more, if I have it done at the dealer it’ll alleviate any (unlikely) extended warranty issues. The cost is slightly higher, but I think it’s worth the peace of mind. Thanks for posting all your experiences, because I was debating another company called PRESSERTech, which doesn’t have a relationship with MB or AMG. Can’t wait to get this done. Was debating an AMG E63S, but if these numbers are true, I can hold off on that for a while.
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RENNtechHQ (06-05-2018)
06-26-2018, 12:01 AM
#31
Senior Member
RENNtech for 2012 CLS550?
Guys, called RENNtech today and I have the option of sending them the ECU unit myself or having it handled by the MB dealer where I bought it. As they explained, though it’ll cost a bit more, if I have it done at the dealer it’ll alleviate any (unlikely) extended warranty issues. The cost is slightly higher, but I think it’s worth the peace of mind. Thanks for posting all your experiences, because I was debating another company called PRESSERTech, which doesn’t have a relationship with MB or AMG. Can’t wait to get this done. Was debating an AMG E63S, but if these numbers are true, I can hold off on that for a while.
11-16-2018, 11:13 PM
#32
Junior Member
muffler delete on 2012 CLS 550
Does anyone know how a Renntech tune would work with muffler delete on a 2012 CLS 550? Would I see similar numbers or should I have my mufflers re-installed?
