6l80e or 6L90e for our ZR-1's? - ZR-1 Net Registry Forums

wdo-mkr · 06-04-2013

Pete might be the best one to answer this question but I wanted to toss this one out there and see what folks know or can offer.

I know there have been more than a couple 4L60/80 conversions done on our LT5 cars but I wanted to learn a bit more about the pros and cons of it all.

I have a 2007 escalade with the 6L80e in it and love the way it shifts.
Yes I know it's an electronic transmission that communicates with the ECM to get feedback data on items like engine speed, rpm, etc.

I also know that unlike the 4L80 transmissions its a clutch to clutch style trans. Ie no bands in it.

There are a couple questions in my mind here with adding this transmission to our C4.

1) has anyone ever done a 6L80/90 series?

2) if yes what did you use for a stand alone transmission controller?
IE http://zerogravityperformance.com/tcm-2600/

3) How well does it shift w/ the standalone controller?

4) My 415 is putting out just under 600hp at the wheels and 500tq. Who makes a set of upgrades that you know will work at these levels?
IE RPM transmissions, CircleD?

5) what torque converter, tail housing (reuse existing driveshaft, and yoke with C-beam mount do I need?)

6) any clearance issues with the 6L80/90E in our cars?

7) Has anyone done a paddle shift conversion to their c4? Open to swapping steering wheels if needed. Ideas?

8) excluding the paddle shift, what would be the parts list including shifter, console insert p, etc that I would need?

9) approximate cost?

06-04-2013	#1
wdo-mkr Join Date: Sep 2005 Posts: 45	6l80e or 6L90e for our ZR-1's? Pete might be the best one to answer this question but I wanted to toss this one out there and see what folks know or can offer. I know there have been more than a couple 4L60/80 conversions done on our LT5 cars but I wanted to learn a bit more about the pros and cons of it all. I have a 2007 escalade with the 6L80e in it and love the way it shifts. Yes I know it's an electronic transmission that communicates with the ECM to get feedback data on items like engine speed, rpm, etc. I also know that unlike the 4L80 transmissions its a clutch to clutch style trans. Ie no bands in it. There are a couple questions in my mind here with adding this transmission to our C4. 1) has anyone ever done a 6L80/90 series? 2) if yes what did you use for a stand alone transmission controller? IE http://zerogravityperformance.com/tcm-2600/ 3) How well does it shift w/ the standalone controller? 4) My 415 is putting out just under 600hp at the wheels and 500tq. Who makes a set of upgrades that you know will work at these levels? IE RPM transmissions, CircleD? 5) what torque converter, tail housing (reuse existing driveshaft, and yoke with C-beam mount do I need?) 6) any clearance issues with the 6L80/90E in our cars? 7) Has anyone done a paddle shift conversion to their c4? Open to swapping steering wheels if needed. Ideas? 8) excluding the paddle shift, what would be the parts list including shifter, console insert p, etc that I would need? 9) approximate cost?