[Logo] GDE Forum - Home for the best in diesel powertrain tuning
  [Search] Search   [Recent Topics] Recent Topics   [Hottest Topics] Hottest Topics   [Top Downloads] Top Downloads   [Members] Member Listing   [Groups] Back to home page 
[Register] Register /  [Login] Login 
Messages posted by: stoutdog
Forum Index » Profile for stoutdog » Messages posted by stoutdog
Message
GreenDieselEngineering wrote:
stoutdog wrote:
GreenDieselEngineering wrote:At this time we do not have any spare TCMs to do an exchange program, we are waiting on receiving an order of extra parts. The trans tune has been tested on aftermarket and stock torque converters and both seem to show good behavior thus far. We are a little concerned about the longevity of the stock TC in any case, but this just relates to the strength of the lock-up clutch springs. We did our best to make everything transparent and work well with the various hardware available on the KJ.


By this, do you mean that you are concerned about the longevity of the stock TC regardless of whether or not you have a tune? I don't particularly want to rapidly accelerate the death of my TC and then have to fork over another couple hundred bucks.



Yes we are concerned about the longevity of the stock TC regardless of what tune is in the vehicle as it is a borderline design. The trans tune should not cause shudder with stock engine power or with the ECO tune. There may be more driveline "grumble" when the trans is locked-up from 1400 rpm to 1600 rpm, but this is normal and will not cause long-term issues. It is just a function of the excitation frequency and the driveline stiffness...sorry for the engineer speak.

Thanks for the response, that is what I figured.... As soon as the stock TC starts to give me shudders, if ever, I plan on replacing it and upgrading to a HOT Tune. Engineer speak aside, I don't mind more driveline grumble... My previous truck was a '93 Cummins, and I doubt the CRD can ever compare to that
GreenDieselEngineering wrote:At this time we do not have any spare TCMs to do an exchange program, we are waiting on receiving an order of extra parts. The trans tune has been tested on aftermarket and stock torque converters and both seem to show good behavior thus far. We are a little concerned about the longevity of the stock TC in any case, but this just relates to the strength of the lock-up clutch springs. We did our best to make everything transparent and work well with the various hardware available on the KJ.


By this, do you mean that you are concerned about the longevity of the stock TC regardless of whether or not you have a tune? I don't particularly want to rapidly accelerate the death of my TC and then have to fork over another couple hundred bucks.
You guys are fantastic!!! I will be shipping my TCM to you as soon as I get back home

Is the tune compatible with the stock TC?

P.S. Kinda creepy that I responded in ~4 minutes... I swear I just randomly jumped on here
I'm running the Stock TC, with no plans to change... Too much money to buy a new TC and pay for the labor, especially when the Eco tune causes zero shudder.

P.S. Sorry for the weird double post.
AZCRDGuy wrote:How long have the new harness and separator assembly been available?

Curious to know if my CRD already has them. Are they labeled with the part numbers you mention below?


Don't know how long, but there's any easy way to check for the new wiring harness. It should be obviously spliced in and have a blue connector (I think the original was black). The connector should also be about as wide as the one next to it, whereas the original was about 1/2 the width.
image
GreenDieselEngineering wrote:We would appreciate any feedback from customers that have been tracking their fuel economy during the last few month. Before tune numbers and after tune numbers along with driving conditions would be fantastic. Some customers have noticed the annual drop in fuel economy with the winter season. This is due mainly to the fuel blending of diesel and partially due to colder ambient temps. A 10% drop is fairly typical going from summer to winter.

Thanks,

GDE


GDE,

http://www.fuelly.com/driver/stouts/liberty

Hope that helps. Let me know if you want more details! I will be back in AZ next week and will reinstall my ECU (with the latest update). I'll be sure to report on what, if any, gains I see from this latest version! Thanks!

-Will
ECO Tune!
GDE,

Thanks, that's exactly what I figured. A lift pump doesn't solve air in the fuel issues, it just may make them less readily apparent. The solution is to fix the leak, not pump the fuel harder.

Thanks!
Thanks, what about the lift pump?

Fyi, I just got a hand-calculated mpg of 25.4 in town on your tune! This was with 117 miles of in town (80% 35-45mph) driving pre-tune and after having the CRD sit for 10 weeks with a tank of B5 festering away - plus three trips to a mechanic for various fuel changes and who knows how much idling around.

Approximating a pre-tune mpg of ca. 19-20, this means I got around 27-28 mpg around town with your Eco tune on a tank of old (and not high quality to begin with) bio!

Thanks so freaking much for all you guys do!
What are y'alls opinions on installing a fuel cooler and/or lift pump. Are either necessary with your ECO tune? Without it? If it helps, my CRD is 99% a DD vehicle.

I have yet to experience air in the fuel problems and am under the impression that the factory injectors are intended to work without a lift pump. The problems I've heard about seem to arise only if you have a weakened vacuum seal or "O" ring. Your thoughts?

Thanks.
 
Forum Index » Profile for stoutdog » Messages posted by stoutdog
Go to:   
Powered by JForum 2.4.1 © 2015 JForum Team • Maintained by Andowson.com