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I've been browsing the forum a while now since i got my c63 last year, finally decided to make an account and start a conversation because im looking for input and suggestions.
I feel like my car could much faster than it is and i would just like to compare with others that are looking to maximize the performance of their w205's.
My car currently has a Eurocharged tune installed ( dont ask me specs of the tune because i dont know flash was completed in a matter of minutes LOL), I have downpipes and BMC drop in filters and occasionally run some ms109 ( i was advised that it would be safe for the car and i love the way the car feels on this fuel)
LET ME GET TO THE POINT
i went to the track and my best time was 11.896 @ 117.79mph which i think i could be much faster considering traction was not an issue, im running toyo r888r 295/35/19 on the street again with hardly any traction issues im doing like 12.3 @115 mph draggy confirmed
on the roll my draggy reads 60-130 from 11.5 to 10.1 which coming from a tune and downpipe f80 m3 feels slow. especically on the top end. Dont get me wrong on the low end this car has plenty of bite (700wtq dyno confirmed) but i feel like the top end performance is not there.
so ALL IM ASKING FOR IS SUGGESTIONS. thanks in advance!!
Below is a screenshot of my 60-130 runs, runs 1-4 are with a Velos tune, secondary cat delete & drop in performance air filters, runs 5-10 are without the tune. All runs are done in race mode (auto) & are made in the early morning, running 94 octane gas which we have here in Canada.
At the strip I went 11.44@127 with a 60’ of 1.91, best I could get that day. I had the dragy on too & it registered an 11.45@125
Next best was an 11.51@125
Last edited by crazy1eye; Sep 21, 2019 at 06:28 AM.
something is definitely not right. my tuned c43 is doing as good or better than those times.
check for boost leaks between turbos and IC and IC and throttle body.
edit: one more thing i thought about. has check engine light ever flashed or turned on and off? car could be in a reduced power state due to many things such as, low battery, tune threw a soft limp mode code.
Last edited by Star4life; Sep 20, 2019 at 01:03 PM.
Ive had it flash once when i was doing a pull @ about 130ish. i pulled over and restarted the car and it went away. didnt happent again. i chalked it up to bad fuel i could be wrong, i didnt scan the code because cel did not persist and car drove normally.
I'm Dinan tune only on 93 oct and have multiple 60-130 MPH Dragy runs and a handful of 1/4 mile slips. No other mods besides the tune and 305 PS4S's in the rear.
I ran 11.5 @ 127 MPH first pass out with the tune and Dragy registered a 9.06 60-130 MPH time for that same run.
Ive had it flash once when i was doing a pull @ about 130ish. i pulled over and restarted the car and it went away. didnt happent again. i chalked it up to bad fuel i could be wrong, i didnt scan the code because cel did not persist and car drove normally.
could have hit a stock limiter and now you dont have full power. Try disconnecting battery for 30 min (or longer if you can) and see if that resolves it. if not you may need to go to mercedes to get codes cleared. or someone with xentry. still check for boost leaks.
Ive had it flash once when i was doing a pull @ about 130ish. i pulled over and restarted the car and it went away. didnt happent again. i chalked it up to bad fuel i could be wrong, i didnt scan the code because cel did not persist and car drove normally.
It is your tune, you car is probably on a soft limp mode. Best option for you is to go back to stock, run the dragy and get some baselines, so that you can compare to other stock c63s and check if there is a problem with the car . And then tune again, but this time do not go to EC, which is one of the, if not the most crappiest tune for this car.
I emailed jerry at eurocharged and sent him a copy of the file on my car right now, he's been responsive so far so hopefully i can get a good resolution out of this. if i can get a new file today i will test tonight. Im going to go to my shop tomorrow and check for boost leaks, change oil and plugs.
It is your tune, you car is probably on a soft limp mode. Best option for you is to go back to stock, run the dragy and get some baselines, so that you can compare to other stock c63s and check if there is a problem with the car . And then tune again, but this time do not go to EC, which is one of the, if not the most crappiest tune for this car.
Ive heard mixed reviews some love EC some hate EC. Though i am not happy with the performance of my car right now they're customer service has been good so far and jerry has been quite responsive via email. i have already spent my money with them and they seem willing to help so i do not want to give up on them just yet.
Oh! I think I find my slow buddy. We can try to get it sorted together as as I find we have exactly the same symptoms.
I am with EC Stage2+ cat-less down pipes+305 Rear
Below are my result at street 3000ish DA.
quarter mile: 12.3-12.5sec @118mph
60-130mph: 10.3-10.5 sec
I brought my car to a dyno and found the torque actually decrease very early(shown in below pic). Probably that explains the weak high end.
I was told mustang dyno reads lower, so take the absolute HP/TQ read with a grain of salt but pay attention to the gain and curve shape.
I also had my car scanned with Xentry but actually no error codes were found.
One thing worth mentioning is that I also experienced a CEL once when doing WOT. Restarted and CEL was done.
I attributed that to low fuel remaining to support WOT, so I did not scan it.
My car is 20k and just finished service B and got the spark plugs replaced. I will test again next week to compare.
I would be nice if I can try other brand tune to compare, but too poor to buy another tune when its not a guaranteed root cause.
WOW, literally identical numbers and symptoms. i emailed ec and was asked to send a copy of my stock file and i would be sent the latest revision. the problem is i never received a copy of the stock file...so im not sure at the point...
WOW, literally identical numbers and symptoms. i emailed ec and was asked to send a copy of my stock file and i would be sent the latest revision. the problem is i never received a copy of the stock file...so im not sure at the point...
Stock file has a copy in your handheld device. You can plug it to your PC and download it.
Isn't it what you did to receive your first tune file? get the stock file from your car and send to EC to exchange for tune file.
Man.. we need to get this resolved. This issue literally makes me want to get rid of my car.
Get a JB4 on there and you can at least use it to monitor engine performance, maybe raise the boost a little on your flash map if everything looks otherwise healthy.
not a bad idea but id like to be confident in the actual tune before i even have to mess with the boost. but in any case isnt that that i paid the tuner for so i dont have to mess with the boost and such. JB4 is the best for monitoring engine performance though had one on my f80 and loved it.
I emailed jerry at eurocharged and sent him a copy of the file on my car right now, he's been responsive so far so hopefully i can get a good resolution out of this. if i can get a new file today i will test tonight. Im going to go to my shop tomorrow and check for boost leaks, change oil and plugs.
Your problem begins with the worthless Eurocharged tune. If it were my car I'd have an ecu tune from a reputable tuner which will delete the Eurocharged tune. Trust me, I speak from a terrible experience with Eurocharged. Unhappy with them I went with Renntech who dyno'd. my car both prior to beginning their work and after their tune. The "before" dyno results reflecting the Eurocharged tune were disgusting and proved that I had thrown my money down the drain with them. The dyno results after Renntech were amazing in the hp and torque gain.
Jerry sent me the newest revision today, i will run the draggy tonight
I had similar draggy numbers with the eurocharged tune and my car was much quicker stock, and although I dont recommended the eurocharged tune. There is something wrong with your car. Could be limp mode maybe it's time to change plugs check to see if your car is building boost check to see if your exhaust is rattling. My car went into limp mode because of low voltage once. Also check your temps(trans temp) could've overheated and put into limp mode and there easily damaged by road debris
Quickly check to see if your building full boost in 1st and second gear and if your not dont run the car or you could be doing more damage by installing a new tune and driving the car hard
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Draggy Times?? Lack luster performance.
