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I finally pulled the trigger and had my 2016 E63S AMG dyno tuned at Eurocharged Cincinnati (thanks Duranni, Matt and team). I was on the fence what route to go - did a lot of research and for me it came down to AMS or EC and given the proximity of Eurocharged and that I had been talking with Duranni at local cars & coffee events for a few years, Eurocharged won out.
Once I settled on EC, I had to make my mind up whether to go canned stage 1 tune or dyno tune...I really wanted to dyno...and then once I decided I was going the dyno route, I started researching the flex fuel tune more and decided to go that route with E30 being my goal.
Before I took the car in, I installed the BB intake. Can't say enough about Jose's customer service and support - I was getting a random CEL popping up after install, even after flipping the harness extension around. Jose shipped another harness at no charge just to rule out a bad harness. All has been good the last several hundred miles so I think the issue was my user error, lol. I love the added intake sounds and "ffffshhhh" you get on acceleration/tip off of the throttle too.
I have also since had the Spool Performance Ethanol Analyzer added to the car...had EC Cincy do the install and it's been nice keeping an eye on my blend and being able to use the app to fill up to stay at E30 each tank. For me, I just didn't want to guess what E rating I was achieving so the analyzer was the perfect add on.
As for the tune...it's freaking awesome...haha. Wish I would have done it sooner but I was waiting for my CPO to run out. I daily this car and unless you intend to use the added power, you don't really notice a change. Driveability / accelerator tip in / stop and go traffic daily driving is like pre tune, but once you want the power, what a night and day difference. It flat-out moves.
As the title notes, the car put down 668 AWHP and 830 AWTQ (ok fine, 829.59 AWTQ without rounding lol). I didn't expect to see a TQ number that big...was thinking in the mid to upper 700s...even the EC Cincy crew was surprised by how much power it put down. Also to note...turns out my CPOd car was already tuned as the baseline 569 AWHP and 602 AWTQ is more than stock...but from there the EC flex fuel tune picked up another 100 HP and 200+ TQ.
Process was really easy (once the Jag with locked up brakes got off the dyno)...baseline run was done, info was sent to Jerry at EC ATX, new file was loaded, new dyno / data pull completed, and all was confirmed "good" and they had me on my way.
Obligatory Dyno below with some pics of the car as well.
New license plate - CMLXXTQ, roman numerals for 970 TQ
I have not logged it...what are all the cool kids using to log? At this point...I'd be interested in logging to see how things are running and to see if there are any further tweaks that might be possible/needed down the road.
I have not logged it...what are all the cool kids using to log? At this point...I'd be interested in logging to see how things are running and to see if there are any further tweaks that might be possible/needed down the road.
Yeah, I'm running E30 right now. Max E85 I've ever run was about 3-4 gallons on my stage 1 Audi S6...my hesitation may have simply been lack of real world examples of people running E50 blends with no issues with fuel pumps/injectors/fuel lines etc. I felt the E30 was a more conservative way to get more power but preserve the car.
What type of bumps are people seeing from E30 to E50?
Great stuff!
So when you say "flex tune" can you run WOT just straight 93 pump too? Or do you have to be careful and only WOT with the E30 mix?
If I could convince myself not to run a blend every time I fill up...I could answer that for you, but so far I keep pumping a blend in as the power is addictive lol.
My understanding is, if you go from E30 to straight 93...or even if you tweak the blend from the E30 much, you should drive more conservatively for awhile to let the car adjust/adapt and then you should be able to drive like a hooligan again...
anyone else actually go from flex to straight 93 that can chime in?
Yeah, I'm running E30 right now. Max E85 I've ever run was about 3-4 gallons on my stage 1 Audi S6...my hesitation may have simply been lack of real world examples of people running E50 blends with no issues with fuel pumps/injectors/fuel lines etc. I felt the E30 was a more conservative way to get more power but preserve the car.
What type of bumps are people seeing from E30 to E50?
roughly low tens vs high tens 1/4 ... 6.8-7.2 60-130's with e50 vs mid to high 7's e30... as an absolutely gross estimate
and don't forget your cats don't like ethanol
Last edited by PeterUbers; Sep 30, 2022 at 06:01 PM.
If I could convince myself not to run a blend every time I fill up...I could answer that for you, but so far I keep pumping a blend in as the power is addictive lol.
My understanding is, if you go from E30 to straight 93...or even if you tweak the blend from the E30 much, you should drive more conservatively for awhile to let the car adjust/adapt and then you should be able to drive like a hooligan again...
anyone else actually go from flex to straight 93 that can chime in?
I have an E40 tune to load is why I’m asking. I also have a 93 tune to load when not on E. So I’m curios if the EC tunes are really flex tune or they just call them that and rods will bend WOT on pump gas.
I fail to see how the tune will know what the mix is without a feedback sensor - which I understand our ECU’s can’t do.
I have an E40 tune to load is why I’m asking. I also have a 93 tune to load when not on E. So I’m curios if the EC tunes are really flex tune or they just call them that and rods will bend WOT on pump gas.
I fail to see how the tune will know what the mix is without a feedback sensor - which I understand our ECU’s can’t do.
To keep it safe, atleast in my opinion, a tune designed for e85 or race gas should never be ran on pump gas or vice versa. You are just asking for trouble especially knowing that our engines are very expensive!
That torque is scary, congrats on the numbers though, car should flyyyyyyyy!
This is just a personal preference, but I would have had them eliminate 100wtq from the low end. Smoother power, better on drivetrain.
Once I can data log I may go back for some edits to the tune. Also, the ECU tune was done first...the dyno was run and the full power was noted...then the new TCU tune was loaded. My understanding was the TCU would limit torque specific to what gear you are in...maybe I'm kidding myself with that...but I do know I am not launching the car from a stop often. Have only done it once. All other spirited driving is with the car in motion...
Regarding the switch between E and straight 93 without retuning...it's a valid question. I don't necessarily want to be an expensive guinea pig if done and it goes wrong...so far I haven't needed to run straight 93 on the car without retuning. I do have the original tune and the new tune on the handheld device...if I get to a point I can't put a blend in it, I may just retune to the original tune and fill it up with 93 octane.
Once I can data log I may go back for some edits to the tune. Also, the ECU tune was done first...the dyno was run and the full power was noted...then the new TCU tune was loaded. My understanding was the TCU would limit torque specific to what gear you are in...maybe I'm kidding myself with that...but I do know I am not launching the car from a stop often. Have only done it once. All other spirited driving is with the car in motion...
invest in one or two output shafts if your planning on launching often
1991 964 Turbo, 2002 Black E55, 2002 Black E55 " The Beast"- 2014 E63s
Originally Posted by Mojo20032004
To keep it safe, atleast in my opinion, a tune designed for e85 or race gas should never be ran on pump gas or vice versa. You are just asking for trouble especially knowing that our engines are very expensive!
Regarding the switch between E and straight 93 without retuning...it's a valid question. I don't necessarily want to be an expensive guinea pig if done and it goes wrong...so far I haven't needed to run straight 93 on the car without retuning. I do have the original tune and the new tune on the handheld device...if I get to a point I can't put a blend in it, I may just retune to the original tune and fill it up with 93 octane.
I have stock ecu, 93 tune, e40 tune, and 100 tune - four ecu's and never had an issue swapping between them all while making very certain what fuel content I have in the tank
I have stock ecu, 93 tune, e40 tune, and 100 tune - four ecu's and never had an issue swapping between them all while making very certain what fuel content I have in the tank
Exactly
My question is they are calling it a "Flex Tune" but IMHO until there are more facts they should be calling it "E40 Tune" or "E30 Tune" or "E50 Tune" etc.
Our car's (as far as I know) cannot do Flex Tunes like other brands easily do as there is no E sensor anywhere for mixture.
I have first hand knowledge of even just bouncing from a Stage 2 93 tune to 91 fuel it can explode so one needs to take it easy. The knock sensors are not good enough to rely on for on the fly tuning. I'd caution anyone running "Flex Tune" to only WOT with proper mixture. Like Peter says make sure you know what's in the tank!!
My question is they are calling it a "Flex Tune" but IMHO until there are more facts they should be calling it "E40 Tune" or "E30 Tune" or "E50 Tune" etc.
Our car's (as far as I know) cannot do Flex Tunes like other brands easily do as there is no E sensor anywhere for mixture.
I have first hand knowledge of even just bouncing from a Stage 2 93 tune to 91 fuel it can explode. "Flex Tune" just does not compute to me. I'd caution anyone running one to only WOT with proper mixture.
yep this ain't a GM flex fuel system - it's E## with a fudge factor of about ______% (whatever your tuner tells you)
Dynos be darned ... get that e-tune benz out on the road and dragy some runs ... 0-60, 1/4, 60-130... let's see what license plate it really deserves lol!
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.
