Need a new transmission, what are the options?
I was driving my old nova with a 468 and th400 on the highway to the track on slicks turning 5000 rpm with open headers BACK IN 2002. Five Thousand RPM. With ear plugs.
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I won't argue about what I personally installed in the car with my own two hands, but I'm running 2.73 and 26 inch ET street R'S. Do the math.
I had to lol. You said what I wanted to but I was trying to be a little less forward. Lol
yea I don’t see 2400 rpm at 70. Just did a calculation. 31” tall tire, 3.08 gears is 70mph at 2400. So yea. Someone is full of it.
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From: Schiller Park, ILL Member: #317
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If you go back to post #7, you will find that I overlooked the fact that op is NA, heads cam car, and that I recommended the 80e over the 400 for his application. And yes, my car is FI (turbo).
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Well I wish I would have been involved in that 4l60e thread. While I agree that pulling timing on the shift will help it live, I shift my car at 7000-7100. It’s not at 550rwhp just yet but it soon will be. It’s in the low 400’s if I had to guess based on my trap speed and weight. My last car I was shifting at 7800-7900 and it lasted just fine. There’s things you can do for high rpm use. If anyone cares to watch this quick clip of a gauge video of my gto making a pull to 120 then here you go. notice how quick the shifts are. There’s no slip. Just heads and cam 5.7 but turning 7000 and the trans shifting on its own. Not going to set the world on fire by any means but just to show you that it does just fine at 7000. It’s been together for about a year and like I said before, I give it no mercy.
no, it’s one I built but a very mild budget build. Some of the stuff in the list you have to buy anyways but for a few extra bucks I upgrade to better parts.
wide band
high energy clutches
8 3-4 raybestos gpz frictions
kolene steels
pinless accumulator pistons
plastic check *****
sealed 2-4 pin
input drum reinforcement sleeve
high rpm pump slide spring
beast sun shell
billet sonnax 2-4 servo
3-4 feed holes drilled
dual cage sprag
5 pinion planets
Teflon bushings where applicable
im going to tell you guys something. When you pay $3500+ for one of these high dollar trans, not even half that money is going towards parts cost. There’s alot of profit margin. FWIW
are not paying attention to the op’s goals and needs and their car is far out of the realm of what a 4l60 can handle
OR
they had a bad experience and their builder couldn’t properly build a 4l60.
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I did, because anymore, I'm into future proofing. It's cheaper to go a bit overboard in regards to durability initially, than doing it two or three times. More often than not, we end up looking for more and more power sooner or later. With that said, I'd still do the 80e over any 4l60, be it the level 5, or level 87.
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From: Woodstock, GA
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Guys give me a hard time about my "airplane gears". Yes, the car would likely be faster in the 1/4, with let's say a 3.42 gear. But the car cruises nicely, and will still run out of most peoples lives.
Im not convinced it would be faster with a steeper gear. Turbo's like load and that setup will load the crap out of the turbo and take advantage of a longer 1st gear. You're area under the curve combined with more mechanical advantage of a the longer 1st gear may be quicker with the gears you have now.