Efi Live Tune/09 5.3/6 Spd

[cerbomark]

Finally, Had a EFI live tune done locally. Did the ecm/tcm on the new 6 spd.. Turned off the AFM. Got the same 20-21 MPGs going home 50 miles at 60MPH on very steep inclines. (I m happy with that). Cut the downshift delays in half. Shifts firmer, holds the gear 10% little longer and when you slightly put your foot in the gas it downshifts right away. Stayed with a 87 tune. I don t race it but wanted driveabilty to be better. I m happy with the results. I ve used this tuner before in upstate NY. Anyone with a 6 spd, don t bother with a tune without the tcm tuning too. We had just the engine tune in first and the tcm tune really made the truck drive better. I ll post again after I drive it a few days.

[2005LT]

Thanks for the info Mark, glad to hear the truck is running well. I have the 6 speed but with the 6.0L. Picking up a Diablosport Predator tonight and unfortunately will only be able to tune the ECM for now. Had someone tell me that a good part of the benefit on a 6.0 comes from tuning the engine alone. Apparently there's a lot left on the table with this engine when they leave the factory. I'll see how it goes.

[Darkanion]

Mark : Glad to hear it went well. I look forward to seeing what you have to say about it after you've driven it some more.

 

Thanks for the info Mark, glad to hear the truck is running well. I have the 6 speed but with the 6.0L. Picking up a Diablosport Predator tonight and unfortunately will only be able to tune the ECM for now. Had someone tell me that a good part of the benefit on a 6.0 comes from tuning the engine alone. Apparently there's a lot left on the table with this engine when they leave the factory. I'll see how it goes.

I was told the same thing about the 6.2's. I tuned mine with the Predator and it ran better, but the transmission stuff was all still the same. I later removed the Predator tune and had Justin (with Blackbear) tune my truck and it made a world of difference. Especially after getting the shift points modified, the whole personality of the truck changed from having to "push" it to go to it being "eager" to go.

 

I have to watch it more now, though.. With TM turned off, that 2-3 shift will sometimes try to make it jump sideways, if you're getting on it in a curve.

[cerbomark]

The engines do leave alot to be tuned but you are being short changed without the TCM tuned. I would expect this answer with the products that cant tune the tcm now. How would they sell if they told you anything else??

[2005LT]

Michael, I would like to have the TCM tuned and getting Justin to do it would be my best bet. Unfortunately, there is no way I can get to him and have a live tune done (I'm in Canada, too far away). As of right now, he can only tune my ECM. He did tell me that tuning the engine would yield a decent benefit. Over in another topic titled "09 Programmers" or something like that I got into listing some of the benefits/drawbacks of each technology as I see it.

 

Diablosport just came out with new tuning a couple weeks ago and a number of folks over on their forum said there is a noticeable difference and are happy with the result. I'll let you know how it turns out.

[Darkanion]

Michael, I would like to have the TCM tuned and getting Justin to do it would be my best bet. Unfortunately, there is no way I can get to him and have a live tune done (I'm in Canada, too far away). As of right now, he can only tune my ECM.

Gotcha!

 

 

Diablosport just came out with new tuning a couple weeks ago and a number of folks over on their forum said there is a noticeable difference and are happy with the result. I'll let you know how it turns out.

Yeah, I kept hearing the "coming soon" from DiabloSports about TCM support since sometime in 2007. I finally gave up on 'em last year.

 

I'll be curious to see what you think of it, after you put the tune in. I know I liked mine at first, but liked it more after I did some data logs and did some tweaking on it.