Drivers/Owners: here is the data I would like an opinion on regarding if everyone thinks this level of performance accurately reflects what my K2 upgrade should be doing.
I went thru the secondary airpump recall debacle and before that was running 12.3's on stock tires with a 118 trap speed right after the K2 install. Got the car back, complained to my tuner/Cory @ the horrific performance with 12.7's and 106 traps and they re-mapped the ECU with much better feel and performance but no actual track numbers to share.
Put on the DR's and went to the Milan track last nite and couldn't do better than 12.1's with 113 traps. The 60' foot was 1.83 and the weather was cool but humid. How are people getting the notion that we should be doing high 11's? I know some are but should I be that far off?
1 Do you think I should have Cory recheck the ECU?
2.Has anyone truly gotten their original level (pre air pump days recalls) of power totally restored?
3.What is every one doing to remedy this? Are we just biding our time till Kleeman gets it de-coded?
4. What transpired at the dealers where people signed away their warranty to get the ECU remapped to original settings?
Thank you for your input-Joker

 

You gotta throw that thing on the dyno Joker. I am dying to know what you are putting down.

You got a good dyno nearby. That way we can all take a peak at what is going on.

http://www.dynojet.com/maps/autodynos/mi.htm

 

Not good K2 performance. Best time for me with K2, Dr's, and LSD was 11.65 at 121.5 mph. Average was 11.7-11.8.

 

(this is JokerzWld's son FYI)

The fastest run EVER in the E55 was as follows:

Reaction --- .2701
60 ft ------- 1.8288
330 ft ------ 5.1388
1/8 ET ----- 7.8459
1/8 MPH --- 88.888
1000' ET --- 10.1798
1000' MPH - 105.11
1/4 ET ----- 12.1379
1/4 MPH ---- 113.66

According to an online calculator, it's putting approx. 440hp to the wheels.

Immediately after the K2, on a Mustang dyno, it was putting down around 420hp.

It is also extremely hard to do a consistent stationary burnout in the E55.

Normally, before each run, the ECU reset sequence is performed (key on, gas to floor 5 sec, key off, wait 2 min).

After that (with ESP off and standard burnout procedure) a the wheels will spin continuously.

However, even with moderately hard brake pressure, it will not stay stationary; creeping at about 5mph forward throughout the burnout.

After the first run/burnout, every subsequent attempt to make the wheels spin is unsuccessful, it will just sit and load the torque converter up, with no wheel slippage.

Is there any explanation for this?

 

..........regardless of the burnout problems you outlined, the car still managed a pretty decent 1.83 60ft time, so that is not the problem. 12.1 is not bad, but the trapspeed of 113 is the problem. I agree with other member who said that you guys should go dyno the car. Perhaps in less humid weather the car will creep into the 11's after it gains a bit more power from better breathing. I strongly suspect that there will no longer be the rampant 11 sec 1/4 mile runs, even in the fall.....definitely not as rampant as last year when everyone was running in the 11's. Mercedes has taken car of that with the secondary air injction pump recall.

Ted

 

Ted's dead right. Your 60' ain't bad at all. It's your speed. Problem is the car IMO, not the driver. After K2 but BEFORE DR's and LSD, best I ran on PS2's was 11.9-12.1 at 115-117.

Personally, I'm a fan of running the car in dyno mode which provides me with unlimited burnouts. I wasn't ever that good at getting proper burnouts without dyno mode.

What was pre-Kleemann dyno?

 

Gentlemen: thank you for your input. I will paste my post-K2 dyno graph here if you'd like but here are the numbers from the Mustang dyno in Commerce Township at Motor City Steel: HP 419.7 at 5500, TQ 461 @ 3500. I did not get the pre-K2 dyno done and these numbers were right after the original install of the K2 and LSD setup.
Does anyone think that Kleeman will solve this issue any time soon? Fall racing season is close upon us-help a brother out! Joker

 

i'm confused about the sequence of events regarding when the mods where done and when you had the recall done...would you mind giving us a better time line?

with the recall flash there are more than a handful of cars that had lost 60-90hp...mine included. this goes for modded and unmodded cars. if this is the case you k2 basically put you back to where a stock e55 should be and it wouldn't be kleemans fault. it doesn't help you now, but this is why there should ALWAYS be a baseline dyno. your post mod dyno seems to correspond with what i would expect after the recall since a stock e55 should typically be around 400hp on a mustang dyno.

i would expect all the tuners to have a fix eventually but until then...?????

 

mikey: sorry @ the timeline-it is cornfuzing! Here we go:
1. Stock E55 gets K2 and LSD
2. Goes to dyno with the above values
3. Goes to strip on stock PS2's and runs 12.3 with 118 traps.
4. Air pump recall occurs
5. Back to Milan strip and runs like s__t with 106 traps and high 12's.
6. Back to my excellent tuners in Commerce and off to Kleeman with remap done, Cory says were able to squeeze a bit more power from the new ECU remap and she comes back.
7. A definite 'butt dyno' improvement but no objective data till Thursday night past.
8. Off to Milan and we (me the sponsor and my 16 y/o son as professional driver) run several 12.1's with average traps @ 113 on drag radials.
There you have it-it's killin' me. Ill probably call Cory on Monday and let him hear my whining and moaning one more time. He and Brandon have given me great service and Im glad were a 'Kleeman family member'.

 

it sounds like you were down on power even before the recall... have you checked the usual suspects like iat?

 

I just got my car back from service where they replaced a transmission valve body. The service rep said they had replaced 2 other AMG 5 speed valve bodies in the last 2 months and that there was a new version of it that mercedes released to deal with some issues.

I noticed that they did the recall on my car and I was very unhappy. I had a dyno done some time ago and I was 400rwhp and 468ft/lbs torque. I should take it back to the same shop and have it redynoed and see what it says. My car is stock btw.

 

..........actually he was fine prior to the recall. His trapspeed was 118, then it went down to 106 after the recall. Now it is up to 113mph after additional programming from Kleemann. As Derek too was saying, pay more atttention to the trapspeed. The 1/4 mile time can vary considerably depending on driver, traction etc.

Ted

 

Trap speed determines your hp, but if you are into bracket racing, ETs are important.

 

..............i don't think anyone said that 1/4 mile times are not important.

Ted