R63 AMG (W251) 2007 - 2013 Discuss the R63 AMG.

I wonder…

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Nov 30, 2021 | 01:32 PM
  #1  
sdgold@att.net's Avatar
Thread Starter
Newbie
 
Joined: Oct 2012
Posts: 13
Likes: 1
07 R350, 80 Triumph Spitfire
I wonder…

As a retired Star Sales Consultant, and Lifetime Tech, I have toyed with the thought of transplanting an S65 powerplant into my R63… I believe it would rival supercharging the 6.3 V8 in every way, and be far more efficient over the long haul… interestingly, one can purchase a S65 complete car for less than the cost of supercharging the 6.3; when swap is accomplished - the 6.3 could be implanted in the S and you’d have two complete autos!!! Thoughts anyone???
Reply
Old Dec 1, 2021 | 05:39 AM
  #2  
1955W196S's Avatar
Member
 
Joined: May 2019
Posts: 77
Likes: 20
R 63 AMG, Mercedes E320
It would be interesting to see how it turned out. However, if you buy a complete S65, you would already have two compete autos without changing the motors. It seems to me that it would destroy the collectible value of both vehicles. Of course, you could always change the motors back, but somehow, I don't think this is a half hour job.
Reply
Old Dec 1, 2021 | 05:48 AM
  #3  
sdgold@att.net's Avatar
Thread Starter
Newbie
 
Joined: Oct 2012
Posts: 13
Likes: 1
07 R350, 80 Triumph Spitfire
Correct!

The idea wasn’t to swap engines back later, the idea was to increase the performance of the already ridiculous level of the R 63!!! I would put the 6.3 in the S and resell it with the “more reliable” V8 rather than the V12… Having forty five years I. The business, I would sell the V8 powered S for enough to cover its original cost, plus the cost for the swap… imagine - a twin turbo 6.0L V12 powered R - Class… what a machine!!!
Reply
Old Dec 1, 2021 | 10:49 AM
  #4  
1955W196S's Avatar
Member
 
Joined: May 2019
Posts: 77
Likes: 20
R 63 AMG, Mercedes E320
How do the sizes of the two motors compare? In other words, is there room for the V12 in the R63? If you do this, I would love to see photos and periodic videos.
Reply
Old Dec 1, 2021 | 03:35 PM
  #5  
sdgold@att.net's Avatar
Thread Starter
Newbie
 
Joined: Oct 2012
Posts: 13
Likes: 1
07 R350, 80 Triumph Spitfire
The first R classes had the inline six, so there should well be room for the 12
Reply
Old Dec 5, 2021 | 03:19 AM
  #6  
zedmikey's Avatar
Newbie
 
Joined: Jun 2021
Posts: 12
Likes: 2
From: Seattle, WA
R63
I definitely dig the idea of a turbo V12 R-class, but I'm with 1955W196S on this one. I wouldn't want to hack up two AMGs to make it happen.

I've thought about this, too, but my thought was to start with an S600 and an R350. Pull the M275, rebuild it as mild or wild as desired, shoehorn it into a stripped R350 chassis, and pin that throttle as often as possible. I think this route has better smiles per dollar.
Reply
Old Dec 7, 2021 | 12:55 PM
  #7  
focalxplosion's Avatar
Member
10 Year Member
Photogenic
Liked
Loved
 
Joined: Jan 2014
Posts: 158
Likes: 31
I haz all the dad cars - R63 AMG, a 2018 E63 Wagon, 2022 GLB 250, and a 2017 GLA 250 for the kiddo
I love the idea of a V12 R65, but it's going to take a lot of custom fabrication and thoughtful upgrades to make it happen.

Originally Posted by sdgold@att.net
The first R classes had the inline six, so there should well be room for the 12
The R class was only ever offered with a V6 or V8. https://en.wikipedia.org/wiki/Mercedes-Benz_R-Class

There isn't enough clearance to the back of the radiator for the longer V12 engine. I'm assuming you would choose the M275 of the same era as the R Class but I believe all V12's since 1998 have the same overall length. The radiator will need to be relocated to clear the accessory belts.

You'll also need to consider that the M275 was never paired with 4Matic and retained the more robust 5-speed transmission. Perhaps you can upgrade the 7G transmission to survive the extra torque but this decision can't be ignored.

Reply

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 07:26 AM.

story-0
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-1
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-2
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-3
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-4
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-5
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-6
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE
story-7
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

Slideshow: These overlooked Mercedes-Benz models never got the spotlight, but they quietly delivered more than most remember.

By Verdad Gallardo | 2026-04-13 19:35:45


VIEW MORE
story-8
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

Slideshow: A well-used 1991 Mercedes-Benz 300D with more than one million miles is now looking for a new owner, and it still appears ready for more.

By Verdad Gallardo | 2026-04-10 10:05:15


VIEW MORE
story-9
10 Most Reliable Mercedes-Benz Models You Can Buy Used

Slideshow: From bulletproof sedans to surprisingly tough SUVs, these Mercedes models proved that the three-pointed star can go the distance.

By Verdad Gallardo | 2026-04-08 09:55:49


VIEW MORE