MHP TCM Tuning Now Available
Thanks
Andy
I am happy to pay what you charge for Chrysler customers for the SRT8 of $690....
http://www.cherokeesrt8.com/forums/s...ad.php?t=18108
If I am getting it as a beta tester then I think its a fairer price
I am happy to post a before and after video on youtube showing the car automatically shifting in manual mode before the software, and then with the software installed that it hits the rev limiter instead of shifting
at $690 and if it does what you say it does, then everyone with an ML should buy one
I am happy to pay what you charge for Chrysler customers for the SRT8 of $690...
If I am getting it as a beta tester then I think its a fairer price
I am happy to post a before and after video on youtube showing the car automatically shifting in manual mode before the software, and then with the software installed that it hits the rev limiter instead of shifting
at $690 and if it does what you say it does, then everyone with an ML should buy one


Although the TCMs in SRT8s and the TCUs in some WA5A MB trannys are related, they are far from the same. It takes different software and a significant amount more time (aka a larger investment) to cover all the WA5A variants MB uses (ChryCo uses only the WA5A580).
We will also be changing more variables for the MB TCUs than the SRT8 TCMs--for instance SRT8s don't have "comfort" "sport" etc tranny modes.
The 7As are yet completely different than even MB WA5As, which again requires completely different equipment/software to flash= more $$.
I hope that helps you understand the difference in price and where it stems from.
Sorry, $690 just isn't going to cut it (even as a beta tester) for modifying the TCU for a 7A. Nice try though.
Last edited by MHP; Aug 27, 2008 at 12:17 AM.
The Best of Mercedes & AMG
We're sending out beta tester TCUs at present and will be rolling out the production versions very shortly.
Thanks for your interest.
Andy
Last thing, can anyone explain why you want to pay to have your car bounce on the limiter? is that in manual only? If so, I get it, but I rarely use manual.
The tune from MPH will tell the car to shift exactly right before redline every time at WOT. This eliminates the worries about the whole "adaptations" thing and also maximizes performance in S mode.
The tune does not affect the shifts in manual mode much, it's mostly in Sport mode. You have the ability to shift at 1000 rpms or 7000 rpms. It all depends on the driver. MPH said he'll look into minimizing the agonizing delay in shifts, but nothing is confirmed as of yet.
Can you tell me what MHP is doing that would be different? Is it that they will turn the adaptability off? Sorry for the confusion, i just got into TCU upgrades lately.
Can you tell me what MHP is doing that would be different? Is it that they will turn the adaptability off? Sorry for the confusion, i just got into TCU upgrades lately.
The things we're concentrating most on are the ability to change shift firmness accordingly (ie leave comfort alone but make sport extremely firm), reducing/eliminating the adaptives, and eliminating the manual shift delay. Changing shift rpm, overall firmness, automatic shifting at redline in Manual mode (if so desired), and coverter lock-up speed are definite go's. Paired with our ECU tunes (which reduce launch/shift torque management in addition to gainining power) your car will have the ability to give you whiplash on shifts and with enough tire, off the line.
Thanks
Andy
We're saying 5 days at the moment because we're simply swamped at this point. In no way do expect our average turn around time to be 5 days, in fact it will likely be on the order of 2-3 tops. Eventually we'd like to be in the 1-2 day range.
Thanks
Converter stall is a function of HP and design, but lockup can be adjusted.
Ancient Modding Info
722.6 and 722.9 (W7A700) transmissions have working pressure control solenoids, which are Pulse width modulated controlled, on/off time affects working pressure (line pressure)
Torque Converter Stall Speed in our cars is a mechanical function and not electronically controlled, Stator fin angle. That must be a typo error








Usually hardware needs to be changed for that