4L60E Trans and Converters

[Jim Kaekel]

Concerning the 3.06 first gear, Sonnax offers a replacement 2.84 gear set.

[Ed Wright]

Originally Posted by Jim Kaekel

Concerning the 3.06 first gear, Sonnax offers a replacement 2.84 gear set.

That would be some help.

[Dan Fahey]

Originally Posted by Jim Kaekel

Concerning the 3.06 first gear, Sonnax offers a replacement 2.84 gear set.

My car seems to love the 3.08
For K/SA minimum weight is 4057.
Going to be little more than 4100lbs.
Can definitely see benefit of a 2.84 gears for the Camaro/Firebird

D

[Jim Kaekel]

Originally Posted by Dan Fahey

My car seems to love the 3.08
For K/SA minimum weight is 4057.
Going to be little more than 4100lbs.
Can definitely see benefit of a 2.84 gears for the Camaro/Firebird

D

I would certainly consider trying it. Although your car is hefty, a lower numerically gear set would provide closer ratios and less RPM drop on the gear changes, and may pick you up some E.T. The 3.06 may provide a quicker 60', for example, but that certainly doesn't guarantee that you will have a quicker E.T. slip. Just my .02.

[Dan Fahey]

Originally Posted by Jim Kaekel

I would certainly consider trying it. Although your car is hefty, a lower numerically gear set would provide closer ratios and less RPM drop on the gear changes, and may pick you up some E.T. The 3.06 may provide a quicker 60', for example, but that certainly doesn't guarantee that you will have a quicker E.T. slip. Just my .02.

That can be an option down the road.
Does great in 1/8 mile and does not bog in between.
Already in third before the 1/8th mile..

D

[James Packer]

You need to modify the convertor clutch circuit to feed the torque convertor properly by using a kit like this https://www.summitracing.com/parts/trg-4l6-ccv.

[Dan Fahey]

Originally Posted by James Packer

You need to modify the convertor clutch circuit to feed the torque convertor properly by using a kit like this https://www.summitracing.com/parts/trg-4l6-ccv.

My Trans was built by PerformaBuilt Trans

http://www.performabuilt.com/gm%20pe...d%20truck.html

Just called and talked to Frank at PerformaBuilt...
I can install a Non-Locking converter in place of the Locking Converter with no issues.
Should have spoken to him first.

Now have to decide the correct size and stall.

What is a good stall speed to start with 5000rpm?
John Partridge suggested 5500/5600 with full up Stocker cam.


Dan

[Ed Wright]

I would listen to John.

[Mark Yacavone]

Originally Posted by Jim Kaekel

Concerning the 3.06 first gear, Sonnax offers a replacement 2.84 gear set.

Hi Jim,
You forgot to mention that deal is 700 bucks.
I can't see the wisdom of spending that money just to bring it close to a stock 200 1st gear. It's never going to as fast anyway. That is, unless there was a real good reason to keep the 700 trans. Such is not the case here.

If it were me, and I already had the o/d trans, I'd probably remove as much of the weight as I could, including the 4th stuff. Then I'd build an 8'', which would be basically, a metric 200 ,with a 30 spline turbine hub.
Then I'd probably figure out what gear ratio that would hang it's tongue out in the quarter. Then I'd back off one ratio, and see what happens.

But, I'm not Dan Fahey.

Dan , you don't seem like a real hands on guy, so here's what I'd do.
Sell the 460 E and the Yanker to one of your buds on the SS forum. Then let me set you up with a 200 / 8 ' combo what would be reasonably priced.
Not looking to get into a bidding war here. Either in or out..What say you?

[Ed Wright]

^^^^^^^^
The 4L60E is not fast! Too many things wrong there.