Hey guys, thought I'd share some updates regarding my set up for those who care/interested in seeing how far it can go.

Current All-Time Best:


(TEMP was about mid 40s, DA was about -500)

With those times (October 3rd), my set up was with AMR Comport tune stage 1 93 octane, jb4 map 2 (max PSI at 20), MST intakes, running on the stock 19" P-Zero tires (Also running a guestimated E30 blend)

Now, I have swapped out my stock tires for 18" Michelin PS4S summer tires (courtesy of some AMR community members who reached out).

Since then however, I started running into some power loss issues. the codes I would get were U0146, and P0299. After a couple of trial runs to test out what the culprit was, it turns out it would only happen on map 2 and not when I'm running map 1 or even just running the AMR tune by itself. So the AMR tune was crossed out as a possible culprit, and I double checked the Jb4 installation to make sure that was sound, and that was also fine, so the issue had to be weeded out when running map 2.

There was an update for my Jb4 firmware, so after updating that, clearing the codes, and resetting my TCU, I took it out for another spin and right when I pushed it for the first time on map 2. BOOM misfire in the 5th cylinder.... took it in to see what the real culprit was a RODENT that apparently was chewing on my fuel injector wiring which caused that misfire... also replaced some bad plugs (haven't been changed since 44K miles) and now we are all fixed.

So what's next? Finding similar conditions for temp, DA, and humidity one the day I had my best time and trying out these new tires. If I'm still in the 11 seconds range, I have 2 mods still awaiting to be put on: BMS WMI Kit, and Weistec Downpipes.

I also want to dabble around with a custom map 6 configuration, I've noticed that my 1/4 mile and 0-60 time shares very similar decimal points (3.3~ 0-60 translates to about a 11.3-11.4 1/4 mile) but I will keep updating this thread with new findings with things I try out, and the issues I may run into for future drivers who want to try this set up.

Huge thanks to the AMR team and the BMS team for their help and responsiveness with my application... More to follow soon!

 

Buddy run that 10, when will you be out next to try it?!

 

Whenever the conditions are near perfect / the same as when I got my all-time best, According to the weather forecast over here I should be able to find that this weekend but there is a slight chance of rain, but I will keep this thread posted whenever I do go out and get some runs,

 

**** a 11’s people have been hitting 11’s on this platform since late 2017 early 2018 🥱😴I’m about to hit high 10’s soon time give me a few months, as I’m getting my fuel pump upgrade and intercooler upgrade installed as we speak on top of being stage 2 w downpipes already it’s time to stop being cheap and put real money into this car ik it can push, but too bad everyone is cheap w their upgrades on this platform and just wants to buy a jb4 or a stage 2 downpipes, only Jeffery is the one pushing real power and he only has stage2+ wmi but all of you other guys are pathetic imo no offence 🤣🤣😂😂 I wonder when 2016 c450 turbo upgrade is even gonna finish if finish at all 🤣🤣🤣🤣🤣 stock turbos puny and ****, which makes me wonder like is the limit of this platform just wmi? 😭😭😭😭😂😂, you gotta pay to play and I guess, no wonder the C43 doesn’t have support like the 440i and has the rep of old cheap white men buying these cars 🤣🤣🤣, w that being said, @5ynatra your bout to see your torque hit 600 lb ft+ Tq to the wheels after wmi but make sure you don’t exceed 535 in horsepower on this car or you will bend your rods., if you wanna make more then 500+ whp on this car, IAT and cooling are v important (with which the wmi helps with tremendously just ask Jeffery lol he knows he’s pushing real power Fr fr) anyway good luck and be safe w your car pls, watch out for misfires they aren’t the greatest things for the car, park it inside your garage, can’t believe a rodent chewed a part of your fuel system 😂😂

 

Since when was this a competition on who spends the most $ on mods? The whole point of why I don't have the WMI and downpipes installed is to see how far I can try to hit sub 11s WITHOUT the use of so many mods 😂😂

Also BMW has ALWAYS had a better aftermarket scene than benz, especially cause I'm sure not many people go for the 43 expecting to spend big bucks on mods, when that money could probably go for a V8....

I see a lot of talk coming from you, I'd love to see some dragys/slips of your setup...

 

@5ynatra, idk about that one tbh who said it was a competition on spending money all I said was to play you gotta pay and this car is expensive is build I mean when you buy a amg what else do you expect, cheap parts ??! 🤣🤣 , Re read my what I said I’m just spitting facts buddy, who says people don’t spend money on v6’s (s4/s5, gtr, j-series Honda v6’s and etc) for a daily this car is amazing with the car that it’s awd is the reason why I bought it tbh it works well in the Canadian winter compared to the c63s, and buddy you betcha, ima post my slips soon, y’all already seen my dyno sheet give me time as things cost money and it doesn’t grow on trees w that being said, who said a little healthy competition doesn’t do good for the platform, if it takes this for it to go ahead by any means May the man w the best quarter mile win, (your the winner thus far since you use e30 and jb4 stack not everyone wants to use this approach yk however men lie, women lie, numbers don’t lie I congratulate you on your amazing quarter mile time!!) I ain’t going no where buddy ima be here a long time, (plus since my car is a 2019 I need to spend more money then the usual pre facelift dudes as the cars torque/speed limiter is connected to this unit called the cpc unit which alone on 2019, costs 1.7-2k usd to deal w to remove the torque/speed limiter so I’m really going through all the obstacles for the platform as a 2019, I’m as passionate for this platform as anybody else on the c450/C43 thread.

p.s WMI is healthy for your car if your pushing power and a cheap substitute to e85 or race gas or even race gas concentrate so using it on top of your jb4 stack up is acc good for your car and will help w any hiccups you might face w cooling/EGT (exhaust gas temperatures)

 

I bring that point up because the people who mildly mod their C43 probably aren't looking to create a track monster, they just want a beautiful looking car with good performance, so I don't think that's pathetic, contrary to your claim.

But no man I completely agree, may the best M276 quarter mile run win, if you beat my time bro I'll be hype, I'm in this for the platform itself not my own personal gain lol

 

@5ynatra exactly, you the king of quarter mile without wmi, I’m the king of stage 2 quarter mile (currently hitting 11.58 on the 1/4) before I had the cpc dealt w and the tcu tune it was hitting 11.64 - 11.67, but the tcu tune helped a **** ton which I recommend you should get for your car, and Jeffery is the king of stage 2 + wmi, post your dyno sheet I’m curious to see what power you make 💥, Yk what ima post my quarter mile from before the tcu and the cpc adjustment, I need a new dragy as well, I lost my old one somewhere 😖, however I used my buddy’s draggy and I got 11.5 on it, let me meet him today and I will post my dragy results as well in a bit !! But for now enjoy the qm times from the Mercedes Benz track pace feature (which imo is pretty accurate as it’s gps connected and works pretty well, ngl. Love the 2019’s fr, can’t wait to do my quarter mile on dragy and the Mercedes Benz track pace once my fuel pump and my intercooler is on and calibrated 😤🤩🧿👹

 

They even warn you to only use it at the track 🥱 too bad I’m doing quarter miles anywhere I find a nice flat road and no traffic/red lights for 1/4 mile 🥴😂 @5ynatra

I love how the inbuilt track pace picks up on tracks near by my area using gps, amg after facelift is pretty cool ngl, coming from a 2018 coupe it’s a huge difference interior wise and technology wise)

 

theres a “stage 2” non-wmi time of 11.46 on dragy (Dan) from this month....

 

People been hitting 11's since liek 2017, and half of them are with piggy backs.

10's is the new 11's

 

@DLinddd thats lovely he’s on the forums ? And did he get 11.4 w a stack up w the jb4 and the tune or just stage 2 w tune and downpipes. Your 0-60 ft is so important when it comes to getting a good time for the car

 

yep he’s on the forums, no, not stacking jb4.

 

With a good map 6, a JB4 only car should be able to reach 11.4's or 11.5's. The best JB4 only car I've seen managed 11.1's, granted it had hand ported stock turbos. The owner did them though, it wasn't sent to someone.

 

@Howyalivin but map 6 is like e25+ territory, I’ve had a jb4 before took it off cause my tune is more stable, I would stack it w my tune and e30 but tbh I wouldn’t do that until i upgrade and calibrate my fuel system, if I do e30 w the jb4 stack and the boost controller for facelift then I think I can crack 11.4-11.3 like @5ynatra but then again I don’t wanna go towards that approach I just don’t trust jb4 stack enough, I want safe power not risky power


I think I know who your talking about or maybe it’s just a whole different person then that means there’s two people in this world that are slient and have ported/hybrid turbo’d c43’s and probably just aren’t on the forums and haven’t done their dynos, damn eh, whoever has their dyno sheet post it on here now I’m really curious

 

2019 C43, w downpipes And tune, on 94 ultra from petro Canada pump gas, prior to tcu tune, cpc adjustments, fuel pump and intercooler upgrade, 427 awhp and 721 nm of torque to the wheels, which roughly translates to 532 lb ft of Tq to the wheels, I’m gonna dyno my car soon in December when I have my fuel pump, and intercooler on, and I will post results then, currently I already have my cpc calibrated and adjusted, and it feels amazinggggg, did this dyno in august

 

Jb4 map guide for those who don’t have or are new to the forums thank me later, check out @n54tuning for more info on jb4 for C43/c450, @Payam@BMS @BMS

 

Do y’all really use e50 on a stock fuel system ??! Just to get good quarter mile times??!! 😂😂😂🤣🤣 I don’t think it’s worth ruining the fuel system I’d rather upgrade mine first then ruin the stock one for results in my humble opinion anything beyond e30 is like corroding your fuel system 😖😂 fuel pressure drops after e30 in the stock fuel system for all the ethanol junkies tryna squeeze good quarter mile times using the stock fuel system, like if I was really desperate to show a good timing I would use e30 as well

 

yep im here.

JB4 (E30) best time 11.81 @115 DA532
Stage 1 (EC canada tune only 93 fuel)best time 11.60 @118.64. DA1100
Stage 2 (EC Canada tune 93) best recorded time (i wasnt stage 2 for long maybe a week or 2) 11.59 @ 115.82. had to let off at the end due to running out of road this day. high DA as well at 2435. probbaly was good for a low 11.5 but thats not what dragy says.
Stage 3 (Fuel pump upgrades E30 EC canada) best recorded time to date 11.46 @123 DA201. This is a base tune for starting our logging. car feels great. just for reference the 60-130 on this tune did 9.17 so far. for you metric guys the 100-200km was 7.55 which is ..04 behind meth jeff . I am very close to Jeff's times with meth with these fuel pumps Just need to perfect the tune and my launch which has always been 1.8 60ft. i am getting new and wider tires and fixing my engine mounts and this should be a very low 11 or 10s car.


also has anyone proven the amg apps to be accurate. i wouldnt be touting records without comparing to a dragy or taking it to the strip. i dont know if those mercedes apps are accurate.

 

@Star4life first of all before anything I congratulate you on the QM time bro 🥳 and yeah it’s accurate bro since it’s gps connected and I’ve also compared it to my draggy times however I’m not gonna lie draggy is more accurate if anything I think I’m doing a faster time cause on draggy I’m going like .3-.4 faster its more accurate to the point where as the Mercedes track pace isn’t as accurate as draggy but tbh ima get a new dragy and do it on dragy, I did 11.58 on my buddies draggy, but good to see you pop out and blessing us w the info 😁😊, your from Toronto ? Meet up some time btw let’s line our cars up for a friendly from the dig and 100-200 if your down we can do it wherever you want even 407 again as I said friendly only no money or nun I wanna see if your really doing better times from more power or just conditions/weather

ps why 93 octane when you can get 94 pump tune from eurocharged lol, one octane can make a big difference in horsepower just my 2 cents

 

we would need to know the refresh rate. if its not at least 10hz then its not accurate. any useful gps is at least 10hz. my guess is mercedes is not 10hz but would be cool to see you run dargy and mercedes side by side.

 

@Star4life whats your Instagram bro send it in my messages il follow you and I’m down, as for the Mercedes Benz app lemme call their head office and get the info on the track pace brb !!!
it’s good to know just for future references also the fuel pump upgrade did you go w fx-150 or fx-180 from @SpoolPerf

 

@Star4life https://www.mercedes-amg.com/en/driv...rack-pace.html



I hope this helps !!

 

So I found some similar conditions, keep in mind it cant get too cold otherwise these summer ties won't hook properly... Anyhow, I was able to roughly replicate the times I had before on a guestimated E30 tank with about 94/95 octane in the tank of pure gasoline (I added a bottle of STP octane booster on a 93 tank)

Seems to be where I pretty much sit with the current set up I have, I really want to stay away from putting ethanol in my tank, cause it is too much of a pain with the way ethanol works at the pumps near my location, so it looks like the next step is ready to take place.

What is this next step? METH KIT. This will allow for better cooling, no mixing/testing headaches, but also will allow me to raise the boost safety on my jb4 by a PSI or 2 (it's currently sitting at 20 Peak PSI Boost safety)

Will keep y'all updated!

 

Hey congratulations and awesome to follow your build and posts.