4L80E and LT1
03-30-2014, 08:16 PM
#1
4L80E and LT1 Wut up erbody,
My car is an original 97 T/A WS6 with a T-56. Now my question is how many guys here have did a 4L80E swap? Im just generalizing and assuming that I will need a change in the PCM to accept a 4L80E, and also a loom that contains a input/output speed sensors. What else is needed? I know this question is suitable for the drive-train section but I thought I would just ask.
What are your swap experiences with the 4L80E? Pros/Cons?
Thanx for the input!
My car is an original 97 T/A WS6 with a T-56. Now my question is how many guys here have did a 4L80E swap? Im just generalizing and assuming that I will need a change in the PCM to accept a 4L80E, and also a loom that contains a input/output speed sensors. What else is needed? I know this question is suitable for the drive-train section but I thought I would just ask.
What are your swap experiences with the 4L80E? Pros/Cons?
Thanx for the input!
03-30-2014, 10:08 PM
#2
You will need to hammer a section of the floor in to clear the data connection.
Wire in a relay to invert a signal, and get a 80e cross member. Will also need a custom torque converter, along with a new yoke for the DS. Stock length will work fine.
Its not cheap.
Wire in a relay to invert a signal, and get a 80e cross member. Will also need a custom torque converter, along with a new yoke for the DS. Stock length will work fine.
Its not cheap.
03-31-2014, 09:58 AM
#5
We build trannys all day over here so thats not the issue. I get 80E complete cores for $100 tops. I know the converter would have to be custom but the best converter builder in the STL area only charges us $250 for billet stalled converter. We just never did a change over in a F-Body before and guys here have already experienced it before so I was just wanting to know what issues I will run into.
4L60E are just weak to me and from what we saw come through the shop. So I rather not keep building one ever other year when I could build something that will last a minimum of 4 years and take abuse at the same damn time. LOL
4L60E are just weak to me and from what we saw come through the shop. So I rather not keep building one ever other year when I could build something that will last a minimum of 4 years and take abuse at the same damn time. LOL
03-31-2014, 10:17 AM
#6
TECH Regular
I've never ran either in a street car (only trucks), but the only thing that keeps me from thinking 60e's are pure crap is the small handful I've seen last in heavy B-bodies running 11s and faster. I've seen many more grenade before the going gets any faster than 12s.
I guess it all depends on who built it and with what parts.
I guess it all depends on who built it and with what parts.
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03-31-2014, 10:41 AM
#8
I've never ran either in a street car (only trucks), but the only thing that keeps me from thinking 60e's are pure crap is the small handful I've seen last in heavy B-bodies running 11s and faster. I've seen many more grenade before the going gets any faster than 12s.
I guess it all depends on who built it and with what parts.
I guess it all depends on who built it and with what parts.
. I rather be safe than sorry at this point. But im still contemplating the swap. I discovered that people are paying $14-1700 for a T56 and that would be my opportunity to be more consistent at the track. It would only cost me $800 in parts (Billet TC, all internals, Wire looms) for the 80E swap so im just trying to weigh my options at this point!
03-31-2014, 11:04 AM
#11
Right. We just bought that for my father in law cuz he was taking out his M5 in his 97 8.1 Chevy 3500. He loves it too!
I was talking to PCM 4 Less and their cars with TH400 was losing 100rwhp but gaining like .3 in the 1/4 mile. So Im assuming a 80E would lose at least 75rwhp if I got a tight enough TC. Some people say I could get low 700rwhp, some say I would crack low 500rwhp. So if I could crack hi 600rwhp through a M6 then I would run as consistent as a 500rwhp as A4?
**** I dont know. Jus speculating. I not really a dyno queen either.
I was talking to PCM 4 Less and their cars with TH400 was losing 100rwhp but gaining like .3 in the 1/4 mile. So Im assuming a 80E would lose at least 75rwhp if I got a tight enough TC. Some people say I could get low 700rwhp, some say I would crack low 500rwhp. So if I could crack hi 600rwhp through a M6 then I would run as consistent as a 500rwhp as A4?
**** I dont know. Jus speculating. I not really a dyno queen either.
loss for me. Their durable but I just cant do a TH400.
04-02-2014, 08:08 AM
#19
I did the 80e swap with my LT1 and absolutely love it. Running the stock tune with a couple of tweaks. It's easy and I don't feel I lost anything at the track from it. The 80e was so much easier to rebuild and a lot cheaper. It is so much more consistent and shifts faster too.
04-02-2014, 11:08 AM
#20
Funny thing is that my fiance chewed me out about putting a 80E in it. She wants me to keep the T56 in it cuz she wants to drive it 
thats such a turn on!
So I will keep the T56 til I tear it up plus Im still gonna build it still just so it wont take too much down time. Thanks a lot for the input!
thats such a turn on!So I will keep the T56 til I tear it up plus Im still gonna build it still just so it wont take too much down time. Thanks a lot for the input!