slow67

iTrader: (2)

Ive been told 500 passes or 5,000 street miles. Should be fine for a racecar.

JUICED96Z

iTrader: (2)

That sounds rahter high. I bet it's more like 100 passes or less. Even if you are racing full time 500 passes is a lot if you ask me...

JL ws-6

iTrader: (50)

Yeah, info I have, is that you should be looking at it every 150 to 200 tops... about the same interval's for rear end gears, rod bearings, valve springs, etc.

JUICED96Z

iTrader: (2)

At 2,000hp or near it 150-200 passes is pretty much when everything needs a refresh........ sooner for springs and rods depending on what you have.

I know there are some 2,000hp is cars that go about two seasons with just valve spring changes but those are cars that are not competitavly raced.



On a side not I know Tim Lynch was or still is runing a 400 based tranny and everyone knows how fast he is...... Proline told me that unless you like changing rear gears for 1/8th mile and 1/4 mile to go with the 400.

OutlawZ

iTrader: (4)

I have an ATI TH400 in my car..... granted i'm only making like 1000hp give or take but I have about 100 passes in my car all on the transbrake and this thing holds up like a champ. And I bought their street/strip version that doesn't have all the bells and whistles.. I think it's rated at like 900hp....

I also run their fuel/blown series of converter... great converter and i've never blown thru it all all... cars been on a 400 shot and converter loved it...

JL ws-6

iTrader: (50)

I have a hughes Th400, best that they build in my car, with an Ultimate converter concepts converter, both have worked great so far, but I'm at a measley 625ish at the crank.


The Th400 vs glide debate, I can ask 50 guys that have been racing for a long time with big power stuff (I'd call big power over 1000 hp, that's big to me anyway) and you will get a 50/50 call.

At less then 1000 hp with anything weighing more then 3200 I don't think the glide will work as good.

Get a car to 2900, even at my power it would probably work, maybe better. Make 1200 at 2900 lbs, glide all day.

Th400 for 1/8th and 1/4 car, I can see that making sense, but I'd bet with 3200 hp you'd be better off just changing the gears and running the glide for consistancy.

1dirtyZ

iTrader: (1)

are you saying replace the sleeved aluminum drum every 100 to 150 passes , or replace the all aluminum drum every 100 to 150 passes?

JL ws-6

iTrader: (50)

Replace an all alum drum every 150 to 200 passes depending on the condition/wear. A sleeved alum drum, will last as long as a steel drum will since the clutches are all riding on the steel sleeve.

1dirtyZ

iTrader: (1)

sweeeeet

1dirtyZ

iTrader: (1)

well we both bit the bullet and went with rossler , carl ( the owner) was very helpfull and took his time answering all our questions

they both should be ready to ship in a week or so .

Firehawk441

iTrader: (41)

Good choice. Just about anyone can build a TH400. It's the simplest trans out there. The PRO MOD sprag is the expensive part.

JUICED96Z

iTrader: (2)

Before my last build went up in smoke due to a lot of things coming up it was going to be a 1,500-low 2,000hp (never got it all figured out) car at well under 3,000 pounds and I was still being told by some of the best guys and builders out there that the 2.10 400 was going to be better just because if I ran 1/8th I would not have to swap out rear gears........ at that weight and power I think more or less it boils down to a little bit of weight savings with the glide or if you don't want to do rear gear swaps.....

I talked to Carl a few years ago about a tranny for Supra I was helping work on and come to find out the owner had just got off the phone with Carl and Carl just laughed a little and did not mind.......... Ill remember that..... the next tranny I need built will come from him........

DanZ28

iTrader: (5)

You would start in second gear on a TH400 for 1/4 mile but use 1rst for the 1/8th, why? You think you will get a better 60' and 1/8th ET by using 1rst in the 1/8th but it won't help in the 1/4, or did I read that wrong?

I won't be swapping gears and I will be running a 2 speed glide so just trying to see the points of swapping, will I get a better 60'? NO! will I get a better 1/8th mile ET/MPH, IDK? Of course we are still talking about a high to mid 7 sec car.