6L80e 6spd Conversion

[derian06]

I'm getting around 200 to the tank right now, thats a significant difference!

 

[adventr]

Yeah, its a noticeable difference in the around town fuel economy. The extra gearing makes the hummer feel "lighter" when driving it around. I rarely need to go past 30% throttle to keep up with traffic.



Still debating on whether or not I'll try and jump on this H1 deal. If so, I may formally list the H3 up for sale on here. Would be awesome if I could keep both, but unfortunately I cannot (already have 2 vehicles).

 

[adventr]

She's listed on here under the Swap Meet section...

 

[CaseyS]

I'm getting around 200 to the tank right now, thats a significant difference!

I've gotten real spoiled the last 40k miles being able to do this



This has me digging into the PCS 2650 to run this as a standalone. This may be a viable option now that the hard parts are worked out. (Not hard difficult, I mean the shafts, adapters). I'd love to get that short gap double overdrive behind the diesel.

 

[adventr]

I've gotten real spoiled the last 40k miles being able to do this



This has me digging into the PCS 2650 to run this as a standalone. This may be a viable option now that the hard parts are worked out. (Not hard difficult, I mean the shafts, adapters). I'd love to get that short gap double overdrive behind the diesel.

Wow, that mileage is impressive!

6l80e would be great in your rig. I'm pretty sure I've seen at least a couple different options for standalone control.
We're actually using the pcs controller in the 12v cummins H1 we're building, but for the 4l80e trans

 

[adventr]

Here's a quick highway acceleration video.

No lag in the downshifts! It just gets up and goes.



https://youtu.be/xG8AjtMdj4Q




:thumbs:

 

[IISPEEDYII]

dang dude, my speedometer has never seen north of 70 hahahahah. i5 probs

 

[RamRod]

Here's a quick highway acceleration video.

No lag in the downshifts! It just gets up and goes.



https://youtu.be/xG8AjtMdj4Q




:thumbs:

That looks nice! Sounds a lot more liniar than when I stomp on it... if you listen behind the wine of the S/C of course!

 

[Guerrero]

Please adventr, can you make a video showing 0 to 60 times? At 100% throttle if you can..the comparison between the 4L60e and the 6L80e acceleration under wot would be great.

 

[amrg]

+1!

 

[adventr]

dang dude, my speedometer has never seen north of 70 hahahahah. i5 probs

I was going to stay in it and hit the speed limiter but I was gaining on traffic pretty hard. LOL

 

[adventr]

Please adventr, can you make a video showing 0 to 60 times? At 100% throttle if you can..the comparison between the 4L60e and the 6L80e acceleration under wot would be great.

I can do that man.

 

[adventr]

Here's a quick video I just made to demonstrate the crawl speed with the new 6L80e transmission.


https://youtu.be/PB-3M6kV0kA



It's pretty low. I think the math works out to like 65:1

 

[Pooslinger900]

adventr

I don't know if i missed it/can't find it or I'm just being impatient :emb: but have you gotten around to making out the full components list for this swap?

 

[High Five H2]

I just got a bonus at work, and I'm going to get the TCM adapter and TC adapter pretty soon. How does the ECU reflash work? do you send yours back to TBMS or what? Can they reprogram the TCM for 4.11 gears, too?

 

[High Five H2]

dunno if anyone checks this thread any more.... but.....

how about cooler lines? do you have to re-route them?

 

[Kyle]

has anyone else successfully done this? My 4l60e is on its way out, and instead of throwing in another ****ty "4" speed I think having the 6 speed will be wonderful especially with the i5 motor, having more gears to go through would be a big difference! So far, if i understand correctly, i will need to buy that adapter plate for the trans to mate with the i5, a 6l80e trans, a new spline shaft, and the TBMS harness/computer. then just bolt everything in.

 

[amrg]

If your vehicle has a TCM, then yes this is all is needed plus a torque converter.
Offcourse the trans needs to come from an AWD 2007/2008/2009 and maybe up to 2011 since the valve body of the 6l80e was revised sometime during that period.

 

[Kyle]

If your vehicle has a TCM, then yes this is all is needed plus a torque converter.
Offcourse the trans needs to come from an AWD 2007/2008/2009 and maybe up to 2011 since the valve body of the 6l80e was revised sometime during that period.

i believe the 08 and up like i have has a combinded pcm/tcm controller.

 

[amrg]

08 up has an E67 pcm and T42 Tcm. The kit made by tbms adapts the T43 of the 6l80e to the T42.

 

[CaseyS]

I have an output shaft that will be here any day now and will be sending that off to get resplined. Once I have it swapped, I will have a core output shaft to send to the next swapper to get resplined.

 

[mjferencak]

If your vehicle has a TCM, then yes this is all is needed plus a torque converter.
Offcourse the trans needs to come from an AWD 2007/2008/2009 and maybe up to 2011 since the valve body of the 6l80e was revised sometime during that period.

What if you have the 06'??? What items are needed?

 

[amrg]

The 6l80e wasn't adapted to an I5.

 

[RamRod]

I have an output shaft that will be here any day now and will be sending that off to get resplined. Once I have it swapped, I will have a core output shaft to send to the next swapper to get resplined.

Great idea... I might be that guy depending on how this fuel pump issue get sorted out

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[Kyle]

The 6l80e wasn't adapted to an I5.

They actually make an adapter plate that allows you to bolt it up!


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