RENNtech Makes the 1,000+ HP Family Car a Reality
Super Member
Joined: Nov 2013
Posts: 991
Likes: 86
From: Washington DC area
Mine: 2014 E550 4matic; Hers: 2016 CLS 400 4matic
I saw it too - I would love to have one - not bad power upgrade for the price. I wonder how the drive train will hold up with all that horse power.
Member
Joined: Apr 2018
Posts: 139
Likes: 51
2018 E63S AMG Wagon, 2020 Audi R8 Performance
Would it void the warranty?
Seriously though I’m curious how the trans will hold up at that power level. Moving a more than 2-ton car to a 0-60 run of 2.5sec or less has to be brutal on the driveline components.
Seriously though I’m curious how the trans will hold up at that power level. Moving a more than 2-ton car to a 0-60 run of 2.5sec or less has to be brutal on the driveline components.
Super Member
Joined: Mar 2021
Posts: 509
Likes: 217
From: Beech Mountain, NC
E63s SL550 GL450
One would assume the drive train is solid, but going from 603 HP, or whatever they actually are and another 400, you are inviting problems. I would be surprised that they are designed to support that much torque and stress. It would surely be a thrill to drive until things start to fail.
MBWorld Fanatic!
Joined: Dec 2013
Posts: 2,394
Likes: 239
E63
M5 with a tune matches these numbers without 1000 HP. How much are you willing to bet the rear wheel dyno numbers are in the mid 700s? Using the archaic 20-30% drivetrain losses will result in 1000BHP
Trending Topics
Senior Member
Joined: Oct 2018
Posts: 497
Likes: 416
From: NYC
AMG
They use 16% drivetrain loss.
This car made 854whp on 100 octane.
Renntech setups are very in depth tested and put together. Knowing that this is a Renntech package, it will do 100K+ miles reliably is the strong point here.
This car made 854whp on 100 octane.
Renntech setups are very in depth tested and put together. Knowing that this is a Renntech package, it will do 100K+ miles reliably is the strong point here.
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
MBWorld Fanatic!
Joined: Mar 2002
Posts: 2,934
Likes: 387
From: Kenilworth, il usa
GT63S ePerformance 4dr, '25 Bentayga Black Ed.(wife), Wrangler and 250 MLB(kids)
Guaranteed Status 8 when discovered.
Components are very sturdy in MB and engineered with huge safety margins, usually to be able to handle 25-30% more torque (that's what can kill them, not the Horsepower).
Renntech offers and recommends transmission retardation to easier handle that huge increase.
MBWorld Fanatic!
Joined: Dec 2013
Posts: 2,394
Likes: 239
E63
Now about that reliably part.....My second Rentech tune experience was definitely less than reliable on a car with 22-27k miles at the time.
Super Member
Joined: Sep 2011
Posts: 598
Likes: 126
E63S 4MATIC 213
Yes.
Guaranteed Status 8 when discovered.
Components are very sturdy in MB and engineered with huge safety margins, usually to be able to handle 25-30% more torque (that's what can kill them, not the Horsepower).
Renntech offers and recommends transmission retardation to easier handle that huge increase.
Guaranteed Status 8 when discovered.
Components are very sturdy in MB and engineered with huge safety margins, usually to be able to handle 25-30% more torque (that's what can kill them, not the Horsepower).
Renntech offers and recommends transmission retardation to easier handle that huge increase.
Senior Member
Joined: Oct 2018
Posts: 497
Likes: 416
From: NYC
AMG
I see that now on their website, very impressive indeed, especially on 100 octane. The M5 doing those numbers with much less RWHP and RWTQ statement still stand. I am sure flat out, the E will eventually leave the tuned M5 after a while.
Now about that reliably part.....My second Rentech tune experience was definitely less than reliable on a car with 22-27k miles at the time.
Now about that reliably part.....My second Rentech tune experience was definitely less than reliable on a car with 22-27k miles at the time.
Renntech always shoots for reliability being a big part of their DNA, im sure this kit can make alot more power of course, but like oem, they always balance their modifications with a blend of power and breathing room on the table for long term reliability and efficiency.
Hard to compare anything to a S63tu motor nowadays, they are a cheat code in terms of power but not so much in consistency and reliability (i.e. bent rods being common)
On the topic of drivetrain, as we know by now the CPC controls tq limits and tq is what kills drivetrains, so depending on the Renntech tuned CPC tq limits they have issued here, we wont know exactly how much they are allowing to the road exactly for long term reliability, but i could imagine they have a good handle on that after their testing and a good balance of it to offer good tq but allow a long service life.
Last edited by 5soko; Mar 30, 2021 at 10:59 AM.
Super Member
Joined: Sep 2011
Posts: 598
Likes: 126
E63S 4MATIC 213
MBWorld Fanatic!
Joined: Dec 2013
Posts: 2,394
Likes: 239
E63
Senior Member
Joined: May 2004
Posts: 466
Likes: 32
MBWorld Fanatic!
Joined: Dec 2013
Posts: 2,394
Likes: 239
E63
Yeah, I get that. And usually, torque limits do not apply to the dyno
But since they mentioned it, I am guessing they may have either stock level torque management or even more restrictive ones only in the lower rpm. Hence their times that equal a tuned only M5 with significantly less RWHP
But since they mentioned it, I am guessing they may have either stock level torque management or even more restrictive ones only in the lower rpm. Hence their times that equal a tuned only M5 with significantly less RWHP
Super Member
Joined: Jul 2010
Posts: 955
Likes: 127
From: Kansas
2003 E55, 2003 SL55, 2014 CLS63, 2018 q50 Redsport, 1968 Camaro SS, 1999 Trans am Firehawk
MBWorld Fanatic!
Joined: Mar 2002
Posts: 2,934
Likes: 387
From: Kenilworth, il usa
GT63S ePerformance 4dr, '25 Bentayga Black Ed.(wife), Wrangler and 250 MLB(kids)
if you have it installed by an MB dealer that is certified by Renntech it will not void it. Have a friend that got every Renntech option on his CLS63 at Aristocrat Motors in Kc & right before the warranty was up it started having oil consumption issues. Dealer put brand new engine in under warranty for him.
Never had any warranty issues and dealer always took care of it but in case when MBUSA finds out (in certain cases MB sends their tech to dealer for consultation) you will be slapped with Status 8 guaranteed.
In 2007, when my SL65 was in service for diff problem, a visiting MB technician became interested in my car.
A newly hired SA opened his mouth unfortunately and bragged how powerful that particular car was with Renntech mods.
That was it, warranty was voided on the spot and my dealer used the first opportunity he had to get rid of that guy.
When dealer does these mods it is the mantra "Don't ask, don't tell..." in play.
Super Member
Joined: Jul 2010
Posts: 955
Likes: 127
From: Kansas
2003 E55, 2003 SL55, 2014 CLS63, 2018 q50 Redsport, 1968 Camaro SS, 1999 Trans am Firehawk
I have owned multiple AMGs and modded them all (since 2000) at my dealer, 90% of them were with Renntech components.
Never had any warranty issues and dealer always took care of it but in case when MBUSA finds out (in certain cases MB sends their tech to dealer for consultation) you will be slapped with Status 8 guaranteed.
In 2007, when my SL65 was in service for diff problem, a visiting MB technician became interested in my car.
A newly hired SA opened his mouth unfortunately and bragged how powerful that particular car was with Renntech mods.
That was it, warranty was voided on the spot and my dealer used the first opportunity he had to get rid of that guy.
When dealer does these mods it is the mantra "Don't ask, don't tell..." in play.
Never had any warranty issues and dealer always took care of it but in case when MBUSA finds out (in certain cases MB sends their tech to dealer for consultation) you will be slapped with Status 8 guaranteed.
In 2007, when my SL65 was in service for diff problem, a visiting MB technician became interested in my car.
A newly hired SA opened his mouth unfortunately and bragged how powerful that particular car was with Renntech mods.
That was it, warranty was voided on the spot and my dealer used the first opportunity he had to get rid of that guy.
When dealer does these mods it is the mantra "Don't ask, don't tell..." in play.
https://www.aristocratmercedes-benz....formance-parts
MBWorld Fanatic!
Joined: Mar 2002
Posts: 2,934
Likes: 387
From: Kenilworth, il usa
GT63S ePerformance 4dr, '25 Bentayga Black Ed.(wife), Wrangler and 250 MLB(kids)
direct from local dealers website “RENNtech performance parts do not alter the Mercedes-Benz manufacturer warranty as long as they are installed by a RENNtech authorized installer”
https://www.aristocratmercedes-benz....formance-parts
https://www.aristocratmercedes-benz....formance-parts
Mind you, it does not mean that the entire warranty coverage is cancelled, it affects only the parts and components that might be affected by the mods.
With ECU modded or turbo upgrade, the powertrain including the transmission is no longer covered, everything else (suspension, electrical, etc) would be still under warranty.
That dealer you mentioned is covering his *** and is not lying either, Renntech takes over the warranty (limited) coverage for the components affected by their products.
Dealer in question does not claim the warranty FROM MBUSA is not affected, he just says that the car is generally still covered (by Renntech as explained above).
Modding your car involves taking some risks and you have to be aware of it, when you mess with original equipment you must be prepared to deal with a potential pain and a haircut.
I still do it, even after having my fingers slapped on occasion because the rewards are significant and worth the risk (for me at least).
Junior Member
Joined: Jul 2021
Posts: 33
Likes: 6
W213 E63S
Product page says 1017 to the crank: https://www.renntechmercedes.com/ind...213-e63-detail
Member
Joined: Jun 2021
Posts: 139
Likes: 30
M3
Product page says 1017 to the crank: https://www.renntechmercedes.com/ind...213-e63-detail
