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Has anyone hit 11s in these ? I currently just have a DUDMD tune but it pulls great. Consistent 4.3s on draggy 0-60 and my fastest was a 4.19 with a 12.5 quarter (although mostly it hits 12.7)
I've just ordered an intercooler, high flow down pipes, and a cold air intake from CTS. Wondering if anyone running this setup has some HP or draggy numbers? TCU tune not happening until next year at this point.
As a general rule with all other factors remaining constant, such as density altitude, weight, traction, etc., it generally takes 10HP to gain a tenth of a second or 100HP to gain a second of ET in a 1/4 mile.
The horsepower needed for gains increases below a 10 second ET. Again, just a general rule, not exact.
Do you have a link for that tune? I’d like to check it out never heard of that particular tune.
I just looked it up and I don’t see a tune for the twin turbo v6 like in my 2019 e450.
Last edited by 2012 merc amg; 06-07-2024 at 02:01 PM.
As a general rule with all other factors remaining constant, such as density altitude, weight, traction, etc., it generally takes 10HP to gain a tenth of a second or 100HP to gain a second of ET in a 1/4 mile.
The horsepower needed for gains increases below a 10 second ET. Again, just a general rule, not exact.
I'm curious, how are you launching the car?
I've tried all the ways... Brake torque at 2k then full throttle seems to get me the 4.3s more consistently. I found that if you brake torque for too long it affects the launch negativity. 2 seconds max and you have to let her go...That being said it is still a bit of a dog out of the hole no matter what I do. Wish it had launch control
Do you have a link for that tune? I’d like to check it out never heard of that particular tune.
I just looked it up and I don’t see a tune for the twin turbo v6 like in my 2019 e450.
Just shoot him a txt he's really quick to respond. Amazing customer service. Also Check out their Facebook page, I feel like they don't update the website often as it doesn't have my car listed either. They were referred to me by a buddy who had his x5 done, so I didn't even bother looking at the site before I messaged them.
As a side note I run 94 to get those numbers. With 91 its more in the 4.8s
With that being said, downpipes, intercooler, intake and a Stage 2 tune should put you in the 11s.
That will be the cats pajamas. Parts arrive next week. Intercooler looks easy to throw on so as long as those downpipes are not a pain in my neck I'll have some updated numbers.
it would be interesting to see how those time translated into a real world drag track. If you could do a 12.49 at a quarter mile race track you’d be doing pretty good. My 2012 e63 amg use to get consistent 12.2s sometimes a little less stock and that car was rated at 550 hp. That was withought using the race start. Too bad the regular e class didn’t have race start. That would probably shave 2 or 3 tenths off your time. Not sure if there is a high stall speed torque converter available for the 9 g trans as that would essentially do the same thing and get you off the line much quicker.
Originally Posted by Woodshoe
Has anyone hit 11s in these ? I currently just have a DUDMD tune but it pulls great. Consistent 4.3s on draggy 0-60 and my fastest was a 4.19 with a 12.5 quarter (although mostly it hits 12.7)
I've just ordered an intercooler, high flow down pipes, and a cold air intake from CTS. Wondering if anyone running this setup has some HP or draggy numbers? TCU tune not happening until next year at this point.
it would be interesting to see how those time translated into a real world drag track. If you could do a 12.49 at a quarter mile race track you’d be doing pretty good. My 2012 e63 amg use to get consistent 12.2s sometimes a little less stock and that car was rated at 550 hp. That was withought using the race start. Too bad the regular e class didn’t have race start. That would probably shave 2 or 3 tenths off your time. Not sure if there is a high stall speed torque converter available for the 9 g trans as that would essentially do the same thing and get you off the line much quicker.
Interesting, I doubt mine will touch 500hp...I'm wondering how much impact the gear ratios have on the 2012s. Those had the 7spd? There is a track nearby once its all bolted up I'll run it there.
My finding with tracks these days it’s pretty humiliating going and running the car with all these crazy fast electric cars. Use to be we worked hard on our engines and drivetrains to go fast now a kid borrows his dad’s Tesla and goes to the track and simply puts their foot to the floor and runs low 11seconds. I don’t think the gearing in my 2012 was much different. Just 2 less gears. That’s another thing you could do is higher gears in the rear end but that’s a lot of work like the torque converter would be. The lowest hanging fruit was the tune like you did already followed by headers and down tubes the other thing you could do is larger turbos. Probably with those 3 other things you could then do a stage 2 tune and at that point I’d think you’d be in high 11s.
I've tried all the ways... Brake torque at 2k then full throttle seems to get me the 4.3s more consistently. I found that if you brake torque for too long it affects the launch negativity. 2 seconds max and you have to let her go...That being said it is still a bit of a dog out of the hole no matter what I do. Wish it had launch control
I wish we had launch control too! I've found mine launches best and hard by brake torquing to 2800-3000. Granted, that's probably not the best for the drivetrain but YOLO, right?
And I'm using a super-scientific method to determine that… launching at 2800-3000 causes the top of my passenger side floor mat to fly back and fold over on itself, whereas at lesser RPM the floor mat stays put, lol. Seriously, it also improves my ET and leaves really hard.
Here is my best (stock E43) Dragy run with really good air (low DA) and launching at 2800-3000. Notice how our 1/4 trap speeds are almost perfectly identical. Interesting.
My finding with tracks these days it’s pretty humiliating going and running the car with all these crazy fast electric cars. Use to be we worked hard on our engines and drivetrains to go fast now a kid borrows his dad’s Tesla and goes to the track and simply puts their foot to the floor and runs low 11seconds. I don’t think the gearing in my 2012 was much different. Just 2 less gears. That’s another thing you could do is higher gears in the rear end but that’s a lot of work like the torque converter would be. The lowest hanging fruit was the tune like you did already followed by headers and down tubes the other thing you could do is larger turbos. Probably with those 3 other things you could then do a stage 2 tune and at that point I’d think you’d be in high 11s.
Totally agreed. IMO, electric doesn't count and I see electric cars in a completely different class, similar to motorcycles. Electric acceleration and speed is impressive, but I just can't see the performance in the same regard as ICE cars. Electric performance to me lacks the excitement you get from raw mechanical explosions. To me it's nowhere near the same and I just can't compare them in my mind.
That will be the cats pajamas. Parts arrive next week. Intercooler looks easy to throw on so as long as those downpipes are not a pain in my neck I'll have some updated numbers.
Cool! If I had to guesstimate, all that (downpipes, intercooler, intake and Stage 2 tune) should net you around 50-80HP and with the right conditions and a good launch should get you in the 11's or really, really close.
Methanol injection may get you another tenth or so, but beyond that, you may be facing turbo size/efficiency and fueling roadblocks.
BTW, looking at our "slips" side-by-side, I wish we would have done this in person. This would have been a fun door-to-door race!
I was hoping to be at the track tomorrow but I'm still waiting on the air intake! I think my stall converter is set to 2k so that's about as high as I can launch it. (Just found some videos and looks like 2100.) Ignore the grunting and phone holding that road had me puckered up a bit at the end with all the pot holes) oh nvm apparently won't let me upload mp4s.
Hoping to have it finished this weekend but test and tune track day is only on Friday unfortunately, so I'll only have draggy times for a bit
I wish we had launch control too! I've found mine launches best and hard by brake torquing to 2800-3000. Granted, that's probably not the best for the drivetrain but YOLO, right?
And I'm using a super-scientific method to determine that… launching at 2800-3000 causes the top of my passenger side floor mat to fly back and fold over on itself, whereas at lesser RPM the floor mat stays put, lol. Seriously, it also improves my ET and leaves really hard.
Here is my best (stock E43) Dragy run with really good air (low DA) and launching at 2800-3000. Notice how our 1/4 trap speeds are almost perfectly identical. Interesting.
I was hoping to be at the track tomorrow but I'm still waiting on the air intake! I think my stall converter is set to 2k so that's about as high as I can launch it. (Just found some videos and looks like 2100.) Ignore the grunting and phone holding that road had me puckered up a bit at the end with all the pot holes) oh nvm apparently won't let me upload mp4s.
Hoping to have it finished this weekend but test and tune track day is only on Friday unfortunately, so I'll only have draggy times for a bit
Nice! I'm looking forward to watching your progress for sure.
Your torque converter stall RPM does not limit your launch RPM. Your brakes can hold the car beyond the converter stall RPM and you will still benefit from the converter torque multiplication when launching.
Just keep in mind that holding the car with the brakes beyond the converter stall RPM will build heat in the converter, so you don't want to hold it any longer than necessary... do it as quickly as you can to avoid heat build-up in the converter.
Can we hear a before and after of your car with and without the mods too?
I'll see what I can do. I've got the stock airbox back on right now minus the cts charge pipes I'll see if I can get some videos of it.
An update for anyone curious.
CTS Intercooler is on. Took me about 6 hours to install. Was a bit of a pain in the *** the tolerances are super tight with the new charge pipes. I thought it would be a breeze but I swore a lot. That being said it went on and the fit is premium.
Cold air intake (was) on. Super easy install about 15 minutes. I didnt have time to install the downpipes yet but it's been about 40degrees up here with humidity and my ***** attach to my leg as soon as I step foot outside so I've put it off until it cools down. I've had about a week time driving around like this and I've seen no 0-60 gains. (Have not had a chance to do quarter pulls yet) so I'd be doing these mods last if you're looking for bang for your buck. The problem is it's gotten so hot here last week that it might just be the temperatures messing with me. We're in a major heatwave.
I've been wondering though if I have an air pocket in my intercooler somewhere maybe someone has some insight on this ? my IATs are 40-50 degrees which is approx 20 celcius over ambiant (should I be measuring ambiant with humidity? If so then im actually pretty much ambient as it's about 40degrees here with humidity) I did use a vacuum to try and remove air multiple times (through the top, numerous engine cycles) but realistically I'm not seeing lower IATs than stock.
it's going in for a TCU tune Wednesday, and hopefully I'll have the downpipes installed by then also....
rant about the cts intake, it's rather **** compared to all their other products. The air box pressure sensor is just ***** nilly out in the open and it's got to affect it somehow. The heat shield has gaps all over it so it's sucking in all of the engine bay temps. Looks cool though, and sounds good with the blow off noises and turbo spools... zero gains with this tune.
Anyway I've put the stock airbox back on and hooked it up to the cts charge pipe and I've actuctually not noticed any change in temps so even though it's sucking all this hot air in, it doesn't care....
06-06-2024, 07:00 PM
