[rod cole]

How much over a converters rated stall is acepptable? I have a supposed tight 3000 stall 9.5 inch converter that seems to flash to almost 3700rpm. Is that within normal range? By flash I mean before it pulls hard in 3rd gear I see between 3600 or 3700 rpm. Also thanks for the answer to the broken tranny post. Sincerely Rod

[Dan Linebarger]

Was the converter matched up with the torque curve of your motor?
I have a 2,800 "Flash stall" and it is hooked up solid by 3,000. Butler Performance recommended the model for my car based upon torque curve.

[rod cole]

I have no dyno graph. chassis or otherwise.

[Dan Linebarger]

Rod,

Some may disagree with me, but a buying a torque converter can be confusing.
Say you buy a converter to "hook-up" at 2,800 rpm. Remember you are buying a converter that sees torque, but are sold based upon rpm. So, a converter designed to hook up at 2,800 on a 350 cu in Chevy with a roller cam, won't hook up at the same rpm on a Pontiac 455 with stock cam. It is all about torque. You don't have to dyno your car, but a knowledgable company selling torque converters should be able to take the specifics of your engine: Make, cu in, cam, rear end, heads, carb etc. and recommend a torque converter that comes close to where you want to be.

Also, the ratio of your rear end is very important. You want the converter locked up at an rpm much less than highway cruise.

I hope this helps. Something I learned after 2 converters and 2 rear ends.

Dan