4T80E/Turbo-S/C... TIME FOR A NEW THREAD? - Page 5 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 09-15-2006, 11:11 PM   #41
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Quote:
Originally Posted by Rogue
They are available via GM Racing and come in 800hp and 1200hp chain sets. They were not a stock production item, but they are available for our transaxles. INTENSE will be offering them for sale soon.
That'* what I figured................

I guess the 4.00 will give 4th gear some action in the 1/4-mile. What is the combination to achieve the other ratios you mentioned (3.52 and 3.76)?

Which all brings me back to the point of my 4T80E swap. The -80 in stock form is good for 600+hp with a basic rebuild and custom clutch packs. No exotic parts, 300m-this, billet that, welded c.v. shafts. I have a 3.71FDR, huge f-ing c.v. shafts (which are equal length and both female ends), EP limited slip... the core trans cost me 150.00, the kit and parts about 500.00, and the converter, custom built and furnace brazed, 200.00. To handle 600+hp, you need to spend 4 times that much on a 4T65E-HD.
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Old 09-16-2006, 05:16 AM   #42
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/\ my sentiments exactly

most of use are on a beer budget

and yes that is the 66 olds 442 Hairy Hurst Olds driven by "gentlman" Joe Schubeck

it is the primary reason we undertook this project, that was a one of a kind monster, not many fellow gearheads i talk to haven't heard about the HHO, we are just doing a modern interpretation.

not to mention the first show we've taken the 442 to this season we won a trophy for most appreciated (didnt even know they did that, we just thought it was a cruise/show deal, we go to the shows and thrive on people'* comments, this is just a bonus!), most of the guys there were custom rodders and were 40/50+

our first trophy and we havent even gotten the 442 anywehere near finished
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Old 09-16-2006, 12:58 PM   #43
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Excellent thread.
Keep posting your progress Jeff.
I will be following with great interest.

The EP lsd you sold me for my car is still holding up very well in my 4T65E-HD.
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Old 09-16-2006, 11:57 PM   #44
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Quote:
Originally Posted by 2000SilverBullet
Excellent thread.
Keep posting your progress Jeff.
I will be following with great interest.

The EP lsd you sold me for my car is still holding up very well in my 4T65E-HD.
Paul, right? Thanks for the props!

I am on vacate for the next 7 days. In Orlando playing with the kids! Instead of cars, I'll be building family bonds this week! Talk to you all when I get back on the 25th.
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Old 09-17-2006, 12:46 AM   #45
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Quote:
Paul, right? Thanks for the props!

I am on vacate for the next 7 days. In Orlando playing with the kids! Instead of cars, I'll be building family bonds this week! Talk to you all when I get back on the 25th.
Yes that'* right Jeff. I'm impressed you remembered.

Have fun with Mickey and Goofy but most of all, your kids. One of my favourite places to play.

Good time to visit after all the crowds have died down a little and the weather is still warm........as long as you don't get blown away by hurricanes.
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Old 12-27-2006, 08:14 PM   #46
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Any updates on this?
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Old 12-27-2006, 08:28 PM   #47
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Quote:
Originally Posted by F14CRAZY
Any updates on this?
Sooner than later... the wife is really getting on me about taking the car apart... back in June!

BTW, I build a bullet-proof 440T4 for your L67 Reatta. Email me off-site.

[email protected]
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Old 01-12-2007, 02:06 PM   #48
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God was watching me when I bought the 4T80E... I bought it as a high-mileage core for 150 bucks. Well, it'* just been rebuilt! I bet it doesn;t have 5K miles on it.

I went thru and did a couple shift mods. I firmed-up the accumulators, removed the cushion spring on the 4th band apply servo (shimmed it solid). I was going to add clutches to 2nd and 3rd clutch packs, but when you see the pics, you'll know why I didn't. All I did was remove the 2nd wave plate to give the pack real clearance (and a hard hit 1-2 shift). I also removed 4-of-12 3rd piston return springs and a few 2nd piston return springs, too.

So, I guess I'm going thru with the swap... now it'* fabrication time!

chain drive gear



2nd clutch, about 8" diameter x 5 frictions



3rd clutch drum, 6" diameter x 4 frictions, front planetary, 2nd clutches



rear planetary, forward clutches behind (didn't change anything past this point)



1" drive chain and driven gear



huge roller bearing supports each chain gear (4T65E uses a needle bearing cage about 1/2 the diameter)

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Old 01-12-2007, 09:56 PM   #49
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Great pics Jeff.
You really seem to know a lot about transmissions

Keep updating us on your progress.

The Lsd you built for me a couple of years ago is still holding out great.
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Old 01-13-2007, 12:08 AM   #50
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you have a website?? im interested in knowing about your deawoo conversion...

i owned a lanos for a while and that thing was about as gutless as a idk.. it was realy slow...
back to topic.... how are you planing on twin screwing these??
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