4l80e INSTALLED !!!!!

JSM

JSM

Active member
It has been eluded to in other threads, etc. After getting home at 1:30 last night with just about all the last pieces complete I figured be good time to start a new thread.

So as of this morning at 9:35 EST, 5/16/05

Trannsmission is in, complete with custom billet convertor. Everything is hooked up, including the new crossmember using the original Phil safety loop, drivelines, dipstick, tranny lines, speed sensor, etc.

abl.thumb.jpg
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It has been a busy last 4 weeks rounding up everything to get this thing done. My body is definetly feeling it. I gotta get the tranny computer fully figured out and make sure it is awake and talking before we try and start the truck and drive it. Finally gave up last night at 1am, deciding another day would be better.

If all goes as planned, this truck will be driven, to, from nats. So far aside from just time to get things figured out it has gone smooth.

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NateP

NateP

Money Pit Member
Re: 4l80e INSTALLED !!!!!

any info on the motor turning this thing over? I've been following the threads/discussion on "when" is a good time to go to the 4l80e based on power, and intended use.

Nate (standing around at the tradeshow... BORING)
 
JSM

JSM

Active member
Re: 4l80e INSTALLED !!!!!

Rear had to be shortened, front lengthed yes.

I think the debate on how much more power they require is still of much debate.

On this truck we have a ton of timeslips, which we can compare to. We plan to dyno also, although I really think a dyno is good tuning tool, but not really accuracte in terms of exact horsepower.
 
Syclone#1992

Syclone#1992

SyTy.net Moderator
Re: 4l80e INSTALLED !!!!!

Very interested in the details of the truck this is being used on.... What is the support made of, looks a little smaller than the stock one.? I wonder how much extra weight?
 
JSM

JSM

Active member
Re: 4l80e INSTALLED !!!!!

NJTy180 said:
driveshaft rights? is that like a copyright? or a patent?? :rotf:
Click to expand...

Mike Renz patented the word Shaft for use on syty.net.

Maybe smaug is still in awe of his shaft?
 
BigBadSmoosh

BigBadSmoosh

Picking fights on I-65 since 2013
Re: 4l80e INSTALLED !!!!!

JS Manufacturing said:
Mike Renz patented the word Shaft for use on syty.net.

Maybe smaug is still in awe of his shaft?
Click to expand...

god damnit, I make a typo and i get reemed for it. :rant:

:squint:
 
JSM

JSM

Active member
Re: 4l80e INSTALLED !!!!!

Syclone#1992 said:
Very interested in the details of the truck this is being used on.... What is the support made of, looks a little smaller than the stock one.? I wonder how much extra weight?
Click to expand...

Honestly this tranny is a bit overkill for the truck. In the future it probably won't be.

Currently truck is stock turbo, stock motor, lots of tuning.

Was running low 12's at 109mph in qtr. Went through 3 trannies (1 original, 1 good used, 1 somewhat built)

I think we could have gotten the 700 to live. We just got tired of worring about it, and I had the parts I was collecting anyways and a good test truck was in order.

Crossmember is mild steel and plenty strong for the application.

It weighed 8lbs when done.

Could one be done from chromoly, sure. Save 1lb maybe? Didn't feel it was worth the price difference for 1lb. We gained 1 lb when we through the TV cable on the bench. :)
 
C

Crimson93Ty

PITA new guy
Re: 4l80e INSTALLED !!!!!

This will be so cool to have before and after with the only change being the trans and converter. The seat of the pants dyno will probably tell a lot though. Be nice to see the beliefs about the 4l80/400 being too heavy either be affirmed or squashed. :tup:
I was digging through your gallery and found this pic:
abr.jpg

Did this lip have to be massaged to clear the bellhousing of the 4L80E?
 
Syclone#1992

Syclone#1992

SyTy.net Moderator
Re: 4l80e INSTALLED !!!!!

JS Manufacturing said:
Honestly this tranny is a bit overkill for the truck. In the future it probably won't be.

Currently truck is stock turbo, stock motor, lots of tuning.

Was running low 12's at 109mph in qtr. Went through 3 trannies (1 original, 1 good used, 1 somewhat built)

I think we could have gotten the 700 to live. We just got tired of worring about it, and I had the parts I was collecting anyways and a good test truck was in order.

Crossmember is mild steel and plenty strong for the application.

It weighed 8lbs when done.

Could one be done from chromoly, sure. Save 1lb maybe? Didn't feel it was worth the price difference for 1lb. We gained 1 lb when we through the TV cable on the bench. :)
Click to expand...

Sweet....this is exactly what I want to see....is how it affects a 12 sec truck semi stock truck!!! Can't wait too see how it performs.
 
nightdiver

nightdiver

Active member
Re: 4l80e INSTALLED !!!!!

Which ecm will you use to control the tranny ? There are 3-4 out there right ? or youre using Big Stuffffff ?
 
JSM

JSM

Active member
Re: 4l80e INSTALLED !!!!!

I massaged the lip, in the end not sure if it needed it or not.

As far as computer, currently playing with a stock gm computer alternative.

For most I would suggest an off the shelf alternative after 6hrs of wiring last night.

If stock ecm doesn't work for us as planned, we will probably buy an TCI unit.

No turning back now, I already removed the TV cable and cut the TCC plug. LOL.
 
Deanzsyclone

Deanzsyclone

New member
Re: 4l80e INSTALLED !!!!!

I understand the 80e to be about 70/80 lbs heavier than our stock trans. Should be a little slower through the 1/4?
I love that crossmember, only 8lbs wow.. how much does the stock crossmember waigh, any idea? maybe you made up for alot of the new trany waight!
 
C

Captain Morgan

Moderated User
Re: 4l80e INSTALLED !!!!!

deanzsyclone said:
I understand the 80e to be about 70/80 lbs heavier than our stock trans. Should be a little slower through the 1/4?
I love that crossmember, only 8lbs wow.. how much does the stock crossmember waigh, any idea? maybe you made up for alot of the new trany waight!
Click to expand...
actually its more like 100lbs
 
NecroWolf

NecroWolf

lost marbles member
Re: 4l80e INSTALLED !!!!!

NJTy180 said:
actually its more like 100lbs
Click to expand...



i'd have to agree. i mean have you ever actually installed a 4l80e? i know in the humvee's i work on the difference between the regular tranny which is either a 350 or 400 turbo and the 4l80e is killer
 
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