First start up l96 with 6l90
 

Gota lot these moments. I was surprised it started right up on first turn.
Also have to say the dakota digital dash sure makes things easy! Now I have to put it I the long horn

https://youtu.be/5odAiebFdmI

https://youtu.be/-vk18OphqwI

Re: First start up l96 with 6l90
 

Congrats, I love your engine run stand!

Re: First start up l96 with 6l90
 

Brilliant! I'm rocking the exact same setup (except for 4X4). Very excited for first startup...keep it up!

Re: First start up l96 with 6l90
 

Nice setup

Re: First start up l96 with 6l90
 

thanks, guess its time to stuff it into the longhorn now. ran the crap out of it and everything is working perfectly. it is fun to play with a motor on a stand like this. ones i have the old motor out ill stick it on the stand and try to figure out wtf is wrong with it.

gota love toys huh?

Re: First start up l96 with 6l90
 

Re: First start up l96 with 6l90
 

Are you using the factory torque converter? I've heard the TC is the weak link in those transmissions, and that an improved aftermarket unit is highly recommended.

Re: First start up l96 with 6l90
 

yeah, i have not touched it. the motor and trans have 9k miles on them so i was going to leave everything alone. though i had not heard of the TC issue.

Re: First start up l96 with 6l90
 

Contact Scotty Baccus at Tejas Steelworks(facebook works well, but I'm sure you can contact him otherwise). They make the Tejas mounts for shoving LS engines into squarebody trucks. Scotty has quite a bit of experience with the 6L80 and 6L90 transmissions with the various swaps he's done for himself and others. Ask him if he recommends an aftermarket converter. I would trust his advice; he shoots pretty straight.

I haven't personally looked into it much myself. I specifically chose a nv4500 over a 6L80e, in case that shows you where my allegiance lies! :)

Re: First start up l96 with 6l90
 

Did you use the E78 ECU and wiring harness that came with the motor? I have the same setup and was thinking about going with a PSI ECU and harness.

Love the valve covers, What brand are they?

Re: First start up l96 with 6l90
 

after lots of debate and talking with knowledgeable people i did not use the 78. there was no advantage to doing so, and lots of downsides. so i had speartech make me a harness with the 38.

Re: First start up l96 with 6l90
 

https://www.youtube.com/watch?v=HCxUIWmWNQA

better running video

Re: First start up l96 with 6l90
 

Thanks. I was talking with PSI about doing the same thing for my L96 and 6l90E. My donor was from a 2019 Isuzu NPR and was told the E78 is not friendly from the Isuzu.

What did Speartech charge you? Did they program the TCU also?

Re: First start up l96 with 6l90
 

what gaguges are those?

Re: First start up l96 with 6l90
 

it was around $3k, but i got all sorts of extras like their pedal, gear display, switch shifter, intake, and more. they are expensive but i feel its totally worth it, a top-notch job.

I did send in the tcu for them to program as well.

Re: First start up l96 with 6l90
 

Dakota Digital RTX-67C-PU-X