Crickett

My question is what stall speed should I put in the car. I'm puttin in a Fastburn 385 in my 76. Its got an TH350 with 3.08s in the rear.

Thanks in advance.

Marc80

I am 425 with same gears and like my TCI Breakaway. Mine is anti-balooning for NOS but I won't use it that way.

The stock converter was terrible it wanted to tug the car off the line and I had to continually shift into neutral at lights. This one is acceptable and plenty of torque off the line without slipping around noticably.

I would not go with a lower stall speed from what little I know, but you should talk to the tech's. they reccommended this based on cam specs and other factors.


[Modified by Marc80, 11:38 PM 8/21/2003]

Glutamine83

i have a 355 with a big cam and I run a 2400 stall, which seems to have decent driveability/performance

i would really like a 2800-3000 stall :seeya

dath

I've also got a 2400 stall, but I don't know how it works yet as I haven't driven my car since installing it... :rolleyes: I had my converter custom made by Torco for a very reasonable rate and it *SHOULD* be better than an off the shelf converter as it's only 9.5 inches. Smaller is better:D I think they cut the stators on the higher stall speed converters with larger cases, which produces a less efficient converter. I've also got an antiballoon plate and the converter is made from billet steel. I do plan on using nitrous or I wouldn't have bothered with the antiballoon myself. Also, with a 2400 and stock tire sizes, you will be very marginal with the 3.08 rear on the highway. Really you shouldn't go any higher unless it's a drag only car, which with 3.08 I'm sure it's not... You'll want to run a transmission cooler as well, or at least every company I called recommended it and my TH400 book recommends it for nearly any car in any setup...


[Modified by dath, 12:29 PM 8/22/2003]

Jack71

2400 too.

I assume its a street car, going higher would hurt driveability. Bigger convertors are for use with bigger cams & gearing in performance applications.

Plus, that Fastburn motor is probably making decent power at 2200- 2400.


[Modified by Jack71, 5:30 PM 8/22/2003]

Nomad78SA

I went with a 1800 stall in my 78 with a stroked 388ci motor and 700R4 overdrive transmission with a lock up converter. I have 3:55 gears in the back...With the amount of torque I will be making, I believe it will stall around 2100 rpms anyway which is dead in my torque power band. I should enjoy it when I finish the vette and get it on the road.....
Neil in Tenn


[Modified by Nomad78SA, 9:54 PM 8/22/2003]