4L80E With Gearvendors
I'm curious why you would want that type of setup. Putting a Gear Vendors on the back of a 4l80e would give you about 1000 rpm cruising at 90 mph, wouldn't it? Why not just a th400 with a Gear Vendors? I am VERY happy with this setup in my Vette.
Member
Joined: Feb 2001
Posts: 276
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From: Park Ridge, IL
Car: Old Car - 1982 Vette. New Car - 1972 Vette Convertible
Engine: Old Car - 1200hp TTSBC 427. New Car - TT LS7X
Transmission: Old Car - 4L80E. New Car - TBD
There are valvebody kits for the 4L80E with allow you to engage the OD in other gears giving you a pseudo 6-speed automatic.
Gear vendors will net better track times due to the splitting of the gears... Plain and simple, but Monty gave me the information i needed. Monty, can you have a transbrake and this quasi 6-speed at the same time?
Member
Joined: Feb 2001
Posts: 276
Likes: 0
From: Park Ridge, IL
Car: Old Car - 1982 Vette. New Car - 1972 Vette Convertible
Engine: Old Car - 1200hp TTSBC 427. New Car - TT LS7X
Transmission: Old Car - 4L80E. New Car - TBD
Bob, I don't know...Gta, why do you want the 4L80E/GV combo?
Gta, Sorry I don't know the question to that either. I've just come across it a couple of times, I don't have any first hand experience with iit. If you decide to go with it, let us know, as it sounds interesting.
Gta, Sorry I don't know the question to that either. I've just come across it a couple of times, I don't have any first hand experience with iit. If you decide to go with it, let us know, as it sounds interesting.
I don't think there would be an advantage to splitting the gears on a 4l80e. You will waste time trying to figure out how to time your shifts in conjunction with your pushing the switch to engage/disengage the GV unit. If you did do this it would give you 8 forward gears since the 4l80e is a 4 speed. I have found from experience that it doesn't work to split all the gears. I leave the GV off for 1st to 2nd shifts. Then I decide if I'm going to need a gear higher than 2nd over I just go directly to third. If I don't need much more gear before the next cone or turn I use the GV to give me a little more. I know Gear Vendors claims you can split all the gears and get a faster time. I don't think it's possible in practical use. You have to shift your main trans and disengage the GV at exactly the correct time. Very difficult to do. I would go with the th400 and GV if I was you. Or else the 4l80e like Monty did.
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