Hit Man X

Here's what I am thinking on a converter for ya:

Keep that small diameter one (10.4" right?). If you plan to lockup down the track, I'd get it upgraded to a multiclutch lockup if they can. If not, consider looking elsewhere for a converter.

Next, most stalls, unless truck specific, are made for a lighter weight vehicle (3200-3800lbs I'd say). So 3400rpms in you ~4800lbs truck would probably do 3500-3800 I'd say on a flash stall. Then that instant input torque of the nitrous just is gonna be bad.

I'd look to get it tightened up to like a 2600-3000 tops. With a small case and the weight it will stall up pretty quick. You plan that T-XX turbo also. Turbos make MASSIVE instant torque when they reach full load. If you plan a 100-200hp shot, you are talking 350-500tq all of a sudden. That's some massive flash. Also...if you do that 408 stroker...more torque....

What did that 3000 flash in your other truck? 4000+?

parish8

iTrader: (6)

the 3000 yank went to 4200 with the 6.0 and whipple and 4700 with the nitrous.

thing is this converter is a power adder converter, it is suppose to be rated "on the juice". i am about ready to get the stall droped ALOT or even get a hole diferent converter if i have to. only problem i have right now is some people are sugesting that it isn't just torque that you want to look at. someone horsepower is suppose to work into the equasion but i am not yet convinced of that.

Hit Man X

Hrm...4700 on the other truck probably was over the torque peak there too right? What does this PYE3400 flash to in your truck w/o nitrous?

I don't know if the stall can be dropped to 2600-2800 for that small of a case, but I assume so. When I was asking PI about their Stallion converters for my F-150 they suggested a ~2400 stall for it. Why? Well weight and power play the role in stall. That 2400 would probably to 2600rpm with the stock motor. Close to or at 3000 with the 408 I have planned (going for ~400rwhp and 450rwtq) and maybe like 3200 with some nitrous.

Well, torque plays a big role as stall is based on input torque from what I remember. But there are more factors than just that. Weight is, cam durations, etc. If horsepower does, I'd like to know how too. I can't see it making that much difference in flash stall in your application.