Mild M157 Tune?
Thread Starter
Member
Joined: Jul 2019
Posts: 169
Likes: 76
2013 E550 sedan
Mild M157 Tune?
I see a lot of folks looking for who makes the most power or is best tuner or has the best reputation, etc. Have any of you just thought about bumping the power up to maybe S class levels? Since the S class is heavier yet has the same transmission, if you had your lighter E with the same power as an S, you should have good transmission longevity (figure that is the weak point) and a bit more oomph...
Hypothetical question, looking for anyone who has looked into it or done it (and was it worth it)...
Hypothetical question, looking for anyone who has looked into it or done it (and was it worth it)...
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Joined: Jul 2007
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From: Houston/ Austin /Toronto / UAE / Minneapolis / Orlando /Cincinnati
Eurocharged Performance ML63 and TT lambo
Good question and we do it all the time. We customize every tune for the car for the mods, elevation, and fueling. If the customer wants a more mild tune that is not an issue at all.
SPONSOR
Joined: Jul 2007
Posts: 5,459
Likes: 152
From: Houston/ Austin /Toronto / UAE / Minneapolis / Orlando /Cincinnati
Eurocharged Performance ML63 and TT lambo
Super Member
Joined: May 2014
Posts: 818
Likes: 79
From: Vancouver B.C. Canada
2014 E550 4MATIC TUNED - Turbo Upgraded Stage 3
I see a lot of folks looking for who makes the most power or is best tuner or has the best reputation, etc. Have any of you just thought about bumping the power up to maybe S class levels? Since the S class is heavier yet has the same transmission, if you had your lighter E with the same power as an S, you should have good transmission longevity (figure that is the weak point) and a bit more oomph...
Hypothetical question, looking for anyone who has looked into it or done it (and was it worth it)...
Hypothetical question, looking for anyone who has looked into it or done it (and was it worth it)...
what power are you looking to make ?
Thread Starter
Member
Joined: Jul 2019
Posts: 169
Likes: 76
2013 E550 sedan
Thanks for the catch! Yeah we were looking at E63s for awhile so my mind slipped to that engine 
Was thinking of looking at some real world numbers for dyno'd S Class M278s and shooting for that or maybe a touch more. I'd like to stick close to the 7Gs Torque limit would be willing to go 10% or so above its published spec, and use that as my upper guide for how much power to add in (560-575 Lb Ft Tq?). I'm thinking that would land the HP number in the mid to upper 400s (475 say?)
Appreciate your input and any other considerations I should have...
Was thinking of looking at some real world numbers for dyno'd S Class M278s and shooting for that or maybe a touch more. I'd like to stick close to the 7Gs Torque limit would be willing to go 10% or so above its published spec, and use that as my upper guide for how much power to add in (560-575 Lb Ft Tq?). I'm thinking that would land the HP number in the mid to upper 400s (475 say?)
Appreciate your input and any other considerations I should have...
Super Member
Joined: Nov 2011
Posts: 973
Likes: 376
From: Austin, TX
2013 SL550 BiTurbo
well, I hate to be the bearer of "bad" news, but you already make the same power as an S550, the E class numbers are just derated a little so not to eat into the S class sales.
I have a Eurocharged Tune and that puts the car about 550hp/650tq(@ the crank) (~450/550 to the wheels). Stock the car ran a 12.8. With just a tune and a muffler delete, I ran a 12.4, and with MBH 3" catless downpipes and straight open exhaust with dumps, I ran a 12.1. cocobeex (as far as I know) is the only E550 faster than me, but he has M157 turbos along with bridgepipes and downpipes from Weistech, allowing him to run an 11.7. There is plenty of power to be had, but you'll be doing yourself a disservice to get a weak tune, if you could even find someone to do such a thing... The E550 drivetrain is solid, no reason to fear anything below 850lb/ft for sure.
Welcome, and good luck!
I have a Eurocharged Tune and that puts the car about 550hp/650tq(@ the crank) (~450/550 to the wheels). Stock the car ran a 12.8. With just a tune and a muffler delete, I ran a 12.4, and with MBH 3" catless downpipes and straight open exhaust with dumps, I ran a 12.1. cocobeex (as far as I know) is the only E550 faster than me, but he has M157 turbos along with bridgepipes and downpipes from Weistech, allowing him to run an 11.7. There is plenty of power to be had, but you'll be doing yourself a disservice to get a weak tune, if you could even find someone to do such a thing... The E550 drivetrain is solid, no reason to fear anything below 850lb/ft for sure.
Welcome, and good luck!
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Thread Starter
Member
Joined: Jul 2019
Posts: 169
Likes: 76
2013 E550 sedan
well, I hate to be the bearer of "bad" news, but you already make the same power as an S550, the E class numbers are just derated a little so not to eat into the S class sales.
I have a Eurocharged Tune and that puts the car about 550hp/650tq(@ the crank) (~450/550 to the wheels). Stock the car ran a 12.8. With just a tune and a muffler delete, I ran a 12.4, and with MBH 3" catless downpipes and straight open exhaust with dumps, I ran a 12.1. cocobeex (as far as I know) is the only E550 faster than me, but he has M157 turbos along with bridgepipes and downpipes from Weistech, allowing him to run an 11.7. There is plenty of power to be had, but you'll be doing yourself a disservice to get a weak tune, if you could even find someone to do such a thing... The E550 drivetrain is solid, no reason to fear anything below 850lb/ft for sure.
Welcome, and good luck!
I have a Eurocharged Tune and that puts the car about 550hp/650tq(@ the crank) (~450/550 to the wheels). Stock the car ran a 12.8. With just a tune and a muffler delete, I ran a 12.4, and with MBH 3" catless downpipes and straight open exhaust with dumps, I ran a 12.1. cocobeex (as far as I know) is the only E550 faster than me, but he has M157 turbos along with bridgepipes and downpipes from Weistech, allowing him to run an 11.7. There is plenty of power to be had, but you'll be doing yourself a disservice to get a weak tune, if you could even find someone to do such a thing... The E550 drivetrain is solid, no reason to fear anything below 850lb/ft for sure.
Welcome, and good luck!
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Member
Joined: Sep 2006
Posts: 228
Likes: 42
From: North of San Francisco
14 E550, 07 E550, 69 Mach I, 65 Hipo, 66 Fairlane GTA Conv, 66 Fairlane GT
I recently installed an OE Tuning tune in my 2014 E550. I didn't do any dyno testing, before or after, so my opinions are strictly seat of the pants. Definitely more power but it's not like I'm melting the tires like any of the big block 4-speed cars I've owned (probably, in part, due to the 550s AWD). What I really like is that shift point seem to be higher, especially in sport mode which is what I usually drive in. Makes the car much more driveable as it's generally on the power band. Just a light squeeze on the throttle is enough to easily get aground slower traffic.
I've found tuning an M278 to be the best upgrade I've ever done, not just the bang for the buck but also the ease of install and the ability to detune on the fly (the tune is installed via the OBD port). The cherry on top was OE Tuning had offered a discount right on this forum. Jerry at OE was easy to deal with and responsive to emails. I can't comment on any other tuners, good or bad, more or less hp, better or worse service, but I'm very pleased with my experience with OE thus far.
I've found tuning an M278 to be the best upgrade I've ever done, not just the bang for the buck but also the ease of install and the ability to detune on the fly (the tune is installed via the OBD port). The cherry on top was OE Tuning had offered a discount right on this forum. Jerry at OE was easy to deal with and responsive to emails. I can't comment on any other tuners, good or bad, more or less hp, better or worse service, but I'm very pleased with my experience with OE thus far.
Thread Starter
Member
Joined: Jul 2019
Posts: 169
Likes: 76
2013 E550 sedan
I recently installed an OE Tuning tune in my 2014 E550. I didn't do any dyno testing, before or after, so my opinions are strictly seat of the pants. Definitely more power but it's not like I'm melting the tires like any of the big block 4-speed cars I've owned (probably, in part, due to the 550s AWD). What I really like is that shift point seem to be higher, especially in sport mode which is what I usually drive in. Makes the car much more driveable as it's generally on the power band. Just a light squeeze on the throttle is enough to easily get aground slower traffic.
I've found tuning an M278 to be the best upgrade I've ever done, not just the bang for the buck but also the ease of install and the ability to detune on the fly (the tune is installed via the OBD port). The cherry on top was OE Tuning had offered a discount right on this forum. Jerry at OE was easy to deal with and responsive to emails. I can't comment on any other tuners, good or bad, more or less hp, better or worse service, but I'm very pleased with my experience with OE thus far.
I've found tuning an M278 to be the best upgrade I've ever done, not just the bang for the buck but also the ease of install and the ability to detune on the fly (the tune is installed via the OBD port). The cherry on top was OE Tuning had offered a discount right on this forum. Jerry at OE was easy to deal with and responsive to emails. I can't comment on any other tuners, good or bad, more or less hp, better or worse service, but I'm very pleased with my experience with OE thus far.
Member
Joined: Sep 2006
Posts: 228
Likes: 42
From: North of San Francisco
14 E550, 07 E550, 69 Mach I, 65 Hipo, 66 Fairlane GTA Conv, 66 Fairlane GT
I let the tuner know there were no mods and that I wasn’t planning any. This is my daily driver (3k mi/mo) so reliability is essential. Safe to say it’s stage 1.
Junior Member
Joined: Jun 2019
Posts: 32
Likes: 13
From: Canada
03 G55 - 13' CLS550 - 90' 560SEC
I have a 13 CLS550, the same M278 tuned by OE. No dyno numbers but definitely a noticeable "pants" feeling increase in power, particularly in the low end. Get it with the pops/crackles option, makes it a lot more fun to drive.
