1lejohn

iTrader: (9)

I'm toying with this idea. Whats the pros and cons beside costs. I can sell my 60E for some good cash. I'm wanting to stay with the 4.11's , but want more top end. Would this switch help. On motor the 4.11's are ideal, not so on the jug. Would the 6 speed just act like a close ratio manual and would I still run out of gear? My son thinks that we would just be in each gear for a shorter time and thus shifting 5 times instead of 3 or sometimes 4. The 6 speed should keep us in the power band better then the big spread of the 60 e.

It 's this or a new carrier and gear set, maybe a spool.

Bo185

With the 4.11 you will hate the 4:1 first of the 6l80 it will shift pretty quick out of first. I would just do a 4l80 swap it will hold more power for cheaper build.

That is assuming you already running a Gen IV motor.

1lejohn

iTrader: (9)

Looking at the TCI 6x it has a 2.87 1st.

MUSTANGBRKR02

iTrader: (91)

If used for racing you could have 20 gears but the final gear in racing should be a 1-1 ratio. You don't need a OD gear for racing. If you are on the limiter thru the traps then you may need a taller tire or a higher gear.

FlatBlackZ28

Here's a question. How do so many people run 3.73's with their 4L60e? I'm only running to 6300-6400 with stock height tire and I am just hitting the limiter in 3rd and my best trap to date is only 110 in 3000 DA. I'll be in the low 120's with spray and I'll be well into OD at that point. Is shifting to 4th going to hurt me a lot or will I be ok?

1lejohn

iTrader: (9)

Yes it will slow you down. Thats the problem that I'm having. You can raise your limiter, if the car is still making power. You can lock the convertor it helps alittlte. It's also hard on the tranny shifting in to OD. I'm making peak power at 6k so my car is laying over big time.

I miss my stock 3.42's for N20 passes.

1lejohn

iTrader: (9)

It needs a gear change for the jug, or a trans gear ratio change. It's just right for NA power, or the 1/8 mile on spray. I would like to lose the 3.06 1st ratio. All it's good for is the first 60-80 feet of the run it shifts into 2nd quickly. Taller tire is not an option.

I understand that you should cross the traps in your 1-1 gear, be it 2nd , 3rd 4th or even 5th. What I'm looking at is with 4 gears before the 1-1 how much further down the track will I be. With a higher 1st gear it will be easier to launch, allow the car to stay in the power band on the 1-2 shift etc.

We would also like to go back to the TX mile. The set up now runs out of gear to soon.

The 80E does look like the best option. The TCI 6x is based off it.

forcd ind

iTrader: (7)

i think the TCI 6 sp is a 4L80E modded-not sure if it changes 4th or not-it also has to be paddle shifted i think-i was curious if it would stay in the selected gear
i know on my new truck with the GM 6 sp, in manuel mod you can shift it man., but its not a full man like your used to (if you got loose and peddaled it, it would change gears downard and back up to the highest gear selected)

1lejohn

iTrader: (9)

Yes it is based off of the 80E. They have an out law shifter that has buttons for the OD, it looks like a nice piece. The trans is fully programable with a stand alone controller. Its just $$$$.

forcd ind

iTrader: (7)

yea, i just saw that shifter today-i wanted to keep my col shift, and use some kind of steering wheel mounted paddle(4l80e), and saw this-if i went to a floor shift, i would just use the B & M pro rachet and switch it to 4 sp-but the TCI one would work for their 6 sp, as theres no shifter with 6 speed detent(yet, lol)
Twist Machine has a steering wheel mount paddle, but $$$$$$$$$$$$$$$
http://www.race-mart.com/TCI-TCI-611623.html

TrueBlueGTO

If you have traction, you'll LOVE first gear of a 6L80/90 with 4.1 gears. I have AWD with my TBSS and I love launching with it. Both transmissions have essentially the same final O/D ratio and with 4.1 gears...the only way to bring RPM's down at the top end is by playing with tire diameter. If you can afford the swap and have a good tuner, you can't beat a 6L80/90.