driving with different stall speeds?

[Sweet5ltr]

After rebuilding my 440 and using a Mopar Performance cam (484/484 280) that said to change to a 2,800 stall speed TC, I didn't. It drove fine on the street! Then I bought a MP high stall speed TC (2,800 rpm) and had it installed. It did do better under high acceleration take-offs (not often on the street), but now I can't drive it on the highway without it overheating due to the excessive heat from the slippage. Stick with the stock TC if you are driving on the street. I'll probably switch back to stock myself.

Yes, that is why most are so heavily against cookie-cutter converters for performance builds. Most older designs have massive slippage and were built for cars with stupid-low gearing and strictly strip use (Mopar converter is bottom barrel - JMHO). I had a TCI 3k 10" Nitrous Converter in a mustang, that had to be stalled to 2,000 RPM before the converter would grab but only flashed to 3,000-3,400 RPM, great for a massive camshaft with heavy overlap, but not for a street car and it lost a tremendous amount of speed up top due to slippage. A modern converter manufacture (PTC, FTI, etc.) could provide you with an absolutely incredible 9.5-9" converter with minimal slippage, 3,500-4,000 stall speed would be my choice when ordering a custom converter for most street applications. Also, run literally the largest trans cooler you can afford to install (along with a cooling fan for heavy traffic). Don't leave anything to chance.

 

[super-bee_ski]

I only use "HUGHES" convertors....

 

[Johnny Mac]

I only use "HUGHES" convertors....

We have really good luck with them also. We even include them in some of our complete engine/trans kits. for a street/ strip car they're great. for an all-out bracket car, I usually go with an 8 inch ATI.

http://paceperformance.com/b-5024-hughes-performance.html#!sxq=727