4L80 auto ZR-1's

[tccrab]

Pete:

Why re-invent the wheel?
Scroll down to the bottom of the page.
$599 on sale.
http://www.transmissioncenter.net/4L...4L80E_Swap.htm

TomC
'Crabs

[HADI-ZR1]

Tom, whats your point?

we scroll down, and found the adapter is to convert Auto trany-to Auto.
Not from ZF6 to Auto.

[phrogs]

iNTERESTING..

Originally Posted by tccrab

Pete:

Why re-invent the wheel?
Scroll down to the bottom of the page.
$599 on sale.
http://www.transmissioncenter.net/4L...4L80E_Swap.htm

TomC
'Crabs

[Pete]

If you read carefully you will notice that you have to use the 700r/4L60 output shaft (27 spline) and you are married to that trans what true hod rodder would want a 400/L80 trans with 700r (27 spline) output shaft.
It's doing it halfway.

Also people are breaking the 700r output shafts.

The piece i'm making you don't have to custom build the trans and you keep the HD 400/4L80 (31 spline) output shaft.
Heck even GM knew better to put a big output shaft (31 spline) on all 6 speeds.

So why do it halfway when you can do it the right way.
How many hod rodders build 400 trans and change the output shaft to 27 spline from the stock 31 spline,seems like going backwards.


Thanks Guys
Pete

[rkreigh]

when you see what the 480LE costs you won't be worried much about the price for the adapter

I know most folks LOVE the ZF box but when you start drag racing the car alot and trying to hook big power with the IRS, the auto really shines

I converted my TT Z06 to auto (4L65E) and the conversion was 7k

from what I understand the 480LE conversions on the ZR-1 run roughly twice that so it's not exactly a cheap mod

but once you hit it with a modern slush box, all is forgiven on the cost front. really works well, just git and go

[Polo-1]

Originally Posted by Pete

Yes, just tail housing.
No need to replace/new output shaft.
No, you use stock yoke/driveshaft and C-beam.

Basicly buy a 4L80E trans install tail housing install in car and reinstall your stock driveshaft and C-beam.

You will also need auto shifter,cable,flex plate (i have),etc.

If you wanted to text your friends while driving the Z, auto is the way to go.

Pete

Ok So, stay with the smaller 1330 u-joint. Was thinking of going to the 1350.
Who is getting these flex plates made , and are they still SFI approved. Are you looking at the a LS style converter or older LT style? What about the flex plate to pump room Do you know the depth ( do you have to run spacers on the front of the converter to flex plate ? ).

Which controller do you like, I have little use time with the TCI box on a 4L80

As you might notice, I'm think of doing this now that the 402 is in the car....

[tccrab]

Originally Posted by Pete

If you read carefully you will notice that you have to use the 700r/4L60 output shaft (27 spline) and you are married to that trans what true hod rodder would want a 400/L80 trans with 700r (27 spline) output shaft.
It's doing it halfway.

Sorry Pete, I didn't know about the 27 spline vs. 31 spline.
My last Chebby Auto was a turbo 400.

It has been a while.....

TomC
'Crabs

[Kb7tif]

Cant wait to see 1/4 mile times.
Well i know the 88 Gta with 225hp would roast the tires like no other, automatic...

[Pete]

Originally Posted by Polo-1

Ok So, stay with the smaller 1330 u-joint. Was thinking of going to the 1350.
Who is getting these flex plates made , and are they still SFI approved. Are you looking at the a LS style converter or older LT style? What about the flex plate to pump room Do you know the depth ( do you have to run spacers on the front of the converter to flex plate ? ).

Which controller do you like, I have little use time with the TCI box on a 4L80

As you might notice, I'm think of doing this now that the 402 is in the car....

Kevin,when your ready to do this let me know.
I could save you a few $$$.
TCI is very friendly/easy to use.

Pete

[aafc]

i have installed a 4l60E trans in my zr-1 back in aug. 2004. At the time
i only made about 368 hp to the rear wheels, the 4l60E helded up for a
while. The trouble was when drag racing it took to long to shift from 2nd
to 3rd. So in 2009 i rpl the 4l60E with a 700r4 transmission full manual
shift while SGC did a 368 550 hp pkg witch made 444 rwhp and 418 rwtq
with the 700r4 trans. I raced the car one time before going to BG in apr
2010. it ran an 11.58 @119.70. no more racing till i came back from BG.
well a week later and putting gas in car the trans broke on the way home( 3 miles away). The 700r4-4l60E trans will not hold up to the hp
that i was making.
so i will rpl the the trans with a 4l80E with a tail housing from pete,
and reuse a lot of the parts for the swap.The only thing new will be the 4l80E trans and tail housing.

John Becker
1990 white/black #2546
110k plus miles