[Half-Inch Stud]

Tempest455, wow, nice links on the GP and 69Judge. Both with TH400s and over 1000HP.

The point is really made with the 3700Lbs and Nitrous into the 8's. The Cast crank is a nice touch too.

I have a question for any takers: What is the first part to fail (failure mode) for a fresh TH400 upon exposure to too many 1000HP passes?

H.I. Stud

[tempest455]

The cast crank was a typo. When I updated the page, I never changed the crank. I believe it was a Crower crank.

Lot's of dudes around here running around with more than 1,000+ HP (sprayed Chevy's) running TH400's. However, I do know two of them switching this year because of breakage. One is going with a Lenco and another an aftermarket glide. These are cars that run low 8's that are having problems.

[Torment]

The sprag obviously but you replace that. All I've managed is burning the clutches out of them-but I'll keep trying [img]/infopop/emoticons/icon_biggrin.gif[/img]

[PROBRD]

Tom - Has Jimmy Keen tried a powerglide lately? They make them know almost bulletproof. BTE makes one with straight cut planetaries with a 1 year warranty and a Dedanbear or JW case. TSI also has the unbreakable planetaries with a 1 year warranty. They are reccomended for up to 2000 HP. I don't think anyone has broken one yet. They say no returns in 2001. I don't know of any other race parts with a warranty. [img]/infopop/emoticons/icon_smile.gif[/img] By the way the planetaries are $1270 from TSI and the BTE Magnum Series powerglide is $4007.85. or the Top Sportsman and Top Dragster glides are $3857.85. Are these the kind he was breaking?

[Goatman]

Rated for 2000 HP?????

At what vehicle wieght, 2100lbs?

I remember Tom saying that the Keens had spent around $250,000 to win those national championships, so I think it would be safe to assume that they had the best they could have at the time.

BTW, most cars making close to that kind of HP are using a manual trans (Liberty, G-force, Jerico) or a Lenco, with a clutch or without. Makes no sense to use a TH400 or powerglide at that level of racing.

[David Holmberg]

Goatman, Class Rules is one good reason. Most classes are being loosened up a little for reliability reasons.

I remember Marty P saying the JW Turbo 400 was the only tranny that would live behind his Turbos...

[Tom Vaught]

PROBIRD, Goatman, and David H.,
8.70 at 3700 lbs is impressive. Jimmy was running
a powerglide the year he won the HotRod "Super
Street" championship. His car had to weigh 3,000
lbs and could only use a spec 10.5 tire. He went
7.60s. There is a little bit of horsepower change
between 8.70 and 7.60 even with the 700 lb weight
difference. He had the ability to buy the best
parts if they were not given to him for free. He
still broke parts. Tom V.

[David Holmberg]

I've always felt that if it's not breaking parts there's more left in it!

The weakest link theory. Something will break, if not, add more power.

[tempest455]

WellÂ…Â…Â….he was breaking parts, however, you do need to check oil. Doh!!!!!

[Tom Vaught]

I agree David. Tom V.
ps. He did check the oil and quite a few other things too along the way to his victory over the
Famous "Bill Glidden"

[PROBRD]

Goatman - not sure about vehicle weight they just say up to 2000 hp in their ad. They just came out last year and no one has returned one broken yet. It's TSI's ad and I guess they can claim anything they want. But they do back it up with a 1 year warranty.

Tom - Maybe Jimmy Keen can look into the new glides that are out know and win another championship this year. These are 10 time's better than what he was using then. Might be worth a try especially if he could get someone to give him one. Maybe he can be the first to break one.

[J.C.you]

Get you a 6 clutch glide with a turbo spline where you can use your turbo converter and you pick up .2ths.

[Goatman]

Get you a Lenco and pick up 4 tenths. Jeffco even guarantees it over a TH400.

[tempest455]

Tom, I was talking about the link I put up for the black Tuna boat! The previous owner had a little mishap [img]/infopop/emoticons/icon_smile.gif[/img] because he didn't check the oil.

[Stam16]

Wrong cam for the juice, and you need better heads that don't quit at 600 lift, the convertor is fine. The question is will it take 950 hp. Here's and example I can give you, a friend of mine who runs a Pontiac in a 3500 + lbs Here's his combo, it's a stock 455 block not filled, no steel caps, stock stroke 455 crank. Yeah I know! but listen he runs CNC ported heads that flow 327 cfm intake ,
and 250 cfm exhaust. No rocker shafts, no stud girdle. His heads flow up to 750 lift. The cam is
a Comp Cam on a 114 lobe sep, I can tell you the cam is very important when your running juice.

He runs 9.10's hitting it with 400 horse nitrous, I laugh when he first starting running this combo not because of the combination but because of the fact he had no steel caps, Block wasn't filled, and a stock pontiac crank, and hitting that baby with 400 hp shot of nitrous. He ran this set up for two years, last year when he check out the
short block he found the block was crack on number 3 main, but other then that he never hurt anything. I was expecting this thing to become a basket case after 5-6 runs, but he's a good tuner and runs a fogger on his Victor intake, not a plate set up.

For you the cheapest way out is more juice,but I doubt you'll run high 8's at least not with those heads, and especially that cam. Will it live ? I have my doubts, here's why for that thing to live you need alumimun rods super light crank and pistons ( the JE's sound good ) the guys that are making 900-1000 hp with a cast crank and stock blocks are running super light parts with 3" mains, and cranks that have been lighten like 8-12 lbs. and steel caps.

[Tom Vaught]

The biggest problem right now for Jimmy Keen is
he is helping the Scrantons and Elias and has neither the time or money right now to do a proper 25-1C chassis that would be competitive.
He may play around with his old car and run Hot
Street with a turbo this year. Hot Street will
pay approximately the same money with less travel
and vehicle upgrades. Tom V.

[PONTIAC DUDE]

Hummmmmm, Robert. That combo sounds familiar. LOL.
Been running close to the same deal for 6 years. Except for billet caps and bottom filling to the bottom of the middle freeze plug. Yep your right. Prep/parts and tuning is key. [img]/infopop/emoticons/icon_wink.gif[/img]

[J.C.you]

Got lite weight brakes on your car? Another tenth.