Soo interesting,,

Did you measure the difference with 0 to 60, from 2.65 to 3.55, and what’s the limiter with 3.55, is it around 150 mph.....??

ZAYED,,

 

168mph with 3.55 gears according to a calculation a member did with different ratios.

 

With the tires I run I can hit 180 at redline in 5th gear. 0 to 60 is so subjective to measure, you'd have to be able to do it in the same condition with the same tires to even try and get accurate numbers for comparisons sake. I did the gears to put me in a higher power band through the gears, hopefully with the new heads and intercooler I'll really be able to find out what these things can do!

 

I like that video of you at the strip with the gears but can't find it!

 

Thankss for the info. guys,

Is there any kind of ESP issues, according to that much wheel spin....!!

ZAYED,,

 

Is this what you were looking for? You can really hear it hit the rev limiter, plus the tune was all jacked up after the gears and we didn't know until we logged full runs at the strip.

 

Yep

 

WaaaW, That’s soo great maan.....

ZAYED,,

 

we have heard that you have said that from numerous people that don't talk to each other. (some of which I have a ton of respect for) That's also why I called you on it...

 

Craig,
First of all I want to say sorry you are having issues... Having experienced letdowns on paid track days myself, I know what you are going through.

Secondly, I don’t post on here really at all, but it has come to my attention that Jerry has been taking a little heat for something that does not seem to be related to his work...

For those of you who don’t know me, I’m Cougars wrench, my name's Dave. So needless to say I have done a considerable amount of work on not only his car, but many AMG's in California... With all the mods come a lot of specialized tuning to match them, and Jerry from Eurocharged is by far OUR BEST RESOURCE for anything tuning related. The guy is a wizard, and I have had spent time with him in Houston, on the phone, email, text... He has spent so many unpaid hours tuning, and re-tuning Cougars car for the changes I make, ALL FOR FREE. When I put the gears in, (I’m not sure if they were the first or not) Jerry spent several weeks, and several tunes getting it worked out, again ALL FOR FREE!! He is dedicated to the cause; he cares about supporting us, not just the money. It is sad to see someone who is admittedly very rough on their car, blaming Jerry for their transmission failing. There is no reason a SOFTWARE gear ratio change will cause a trans to grenade, it just won’t happen... the many hard miles and 1/4 mile passes are more likely the culprit. I wonder how many trans services were performed over the course of its racing history, what kind of shape was the drivetrain in when it was installed, it surely was not a crate engine/trans was it?? I change the fluids in Cougars car all the time, and service it regularly. You can’t just juice up a stock car, run it super hard, and never expect things to go wrong. If you are that guy, you are just silly and delusional...

With that being said - Jerry can and will modify your TCU to accept different gears, and assuming your car is mechanically sound, it will work well. PERIOD.

Anyhow, I just wanted to let everyone know that Jerry is EXTREMELY dedicated and helpful to not only me, but this entire community. He works hard to make new ideas work, and is not afraid to invest hours of his own unpaid time into getting problems solved. I remember one Sunday morning I was talking to him on the phone, over breakfast, about an airstrip event that we went to, working out the tuning. I just am amazed at that. We have only paid for one tune from Eurocharged, and it’s the only one we will need!

THANKS JERRY!!!!

 

Dave, you have your facts all wrong bro. Are you suggesting I am blaming EC because my transmission is acting up, thats a negative. I could careless if my transmission goes out, I have a spare one under my bed

I was told that once I perform the gear swap, the tcm would be taken care of to accomodate the gear. After my track day I reached out to EC, stating what is going on, and got a reply saying nothing can be done about the car going into limp mode once getting up to speed through the 1/4 mile.

My tranny has never slipped, and did not slip at the track. I am not asking for anything else from EC, just simply stating how my car reacted once I installed the gear and tcm. I know what it feels like when a tranny slips, and mine is not doing that. The star data relects the gear cal is off, I highly doubt I ran a 10 with a slipping transmission.

I would gladly have worked with EC to try and resolve it, but was told there is nothing that can be done to prevent the limp mode issue.

 

I could be wrong, but there was the negative press from Jim (AMX1397) in this thread which seems to be the issue at hand, not the actual thread itself made by you about what just happened with your car with all the changes. It could have been relayed to Dave for example that there were negative things said and it was taken as you were the one bashing but it was actually another member within the thread.

I forget if you mentioned in your track day thread, but did you have any issues when running your old drag setup with the smaller tires on this last track day? I think you said you only did 1 pass with them and got to much spin so used the taller tires, but perhaps you had all these issues due to the finicky nature of these cars and the taller tires because that changed the gearing from how the transmission tcu was set for the new gear setup?

So did you have the " gear is implausable or slipping tranny" type codes and troubles on that run with the smaller drag radials run, or was this just the rest of the day with the larger diameter tires?

 

Yes sir, I had the same codes on the first run with the 255 50 16 Hoosiers I have always run. I have nothing against jerry and jake or ec. Nice guys that have always helped!!!

 

Sorry to ask that question here, but a TCU tune will trigger Limp Mode anyway?

 

Craig - nah man - sorry for the confusion - I was talkin' to the other fella rippin' Jerry, for his trans failure...

I know as well as you that your trans isn't slipping... those tires (255/50/16's) are about 26" right? if so then they should be within the limits for the stock size... When we went to 28's I had to change the tire size in DevMode with SDS... so that's prolly not the issue. A quick look at the freeze data seems interesting... in the freeze of p2563 (4 gear) the temp is at -50 degrees, that seems odd to me, like a possible loose connection at 13-pin, bad conductor plate, of something along those lines. since you obviously have SDS at your disposal, I might try taking it out on the road, and looking at the speed sensor actual values real time while you are driving. conductor plates go out every now and then, and they can cause that problem. Also make sure there is no fluid wicking up your harness into the TCU... I think I have a spare conductor plate laying around if you find it has issues!

Again - Sorry if you thought I was making jabs at you...

-Dave

 

Nah Crissus - we have lots of success with the trans tunes from Jerry, no limp mode... Good question though - what made you suspect that was the case?

-Dave

 

Yeah that’s how I read it too.

*off topic*
Properly tweaking a 6L80E via HP Tuners or EFI Live isn’t for the faint of heart either. :D

 

Try tweaking a Allison with EFI Live, talk about nerve racking when you have over 7K into it

 

Yep, that's what I am playing with now!

 

Now try tweaking it via hexadecimal like Jerry is doing

 

and people wonder why it takes so long.

 

Ok, skipping all the bs, it took several weeks to figure out the 3:55 swap, which is understandable.
Is Jerry willing to work with you too until you have a functioning file?

 

What's the word? Full steam ahead or are we abandoning ship?

 

I am still working on it brotha, I have not thrown in the towel yet.

 

Looks like my issue has been fixed. After doing some digging I found out that the W209 CLK55 has the same TCU as us, along with the same tranny 722.6. Best part about it is they come with a 3.06 gear from the factory, the exact same gear I put in my rear end.

I bought a used TCU out of the above mentioned model, threw it in, and hoped for the best. I have driven the car for a full day now, and got it threw the gears and up to 100mph, and have not got any codes or limp mode yet.

I am still having a custom TCU done in the mean time by Marcin to my specs on shifting points etc. One bonus is that I can turn off traction control and do standing burnouts with this tcu. I could never do that in the past with my 06 TCU.