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V8 Juggernaut 01-14-2013 10:12 PM

Torque convertor advice
Okay, here's what I've got: 5.0 out of a 96 Explorer, Ford Racing E-303 cam and lifters, Trick Flow Specialties valve spring kit, Edelbrock Performer RPM intake and Edelbrock 1404 carb. The transmission is a C-4 out of a 77 Thunderbird rebuilt with a shift kit. Rearend is a 9" with 3.50 gears currently (I have a set of 3.70's too). The tire size is 205/60/15 with a height of about 24.5" tall. This combo is in a 62 Falcon which will weigh in the neighborhood of 2400-2500 lbs when done.

PLEASE NOTE: This is and will be a street car, not a race/drag car. Of course I won't mind laying some black strips now and again. :D So, I don't need some exotic built torque convertor, just an off the shelf convertor that I'll probably buy from Jegs or Summit. With that being said, what would be a good stall speed to look for with this combo? Thanks in advance for your help.

P.S. Not trying to be a smart-*** with the exotic convertor thing, but I have gotten some pretty crazy recommendations from other sources and I just need a short and sweet suggestion.

cobalt327 01-14-2013 10:23 PM


Originally Posted by V8 Juggernaut (Post 1634971)
PLEASE NOTE: This is and will be a street car, not a race/drag car.

Welcome to Hotrodders!

3K rpm stall. I'd seriously consider the 3.70s, too. Add an axillary cooler if you don't already have one.

The distributor will need a performance curve in it.

Good luck.

vinniekq2 01-15-2013 12:44 PM

2500-3000 is a lot of converter for a light street car that gets driven a lot.

cobalt327 01-15-2013 01:05 PM

A converter will stall lower in a lighter vehicle than a heavier vehicle, all else being equal.

My recommendation is conservative if anything (what do you think FB88 would recommend :mwink:).

vinniekq2 01-15-2013 02:12 PM

At 2500 RPM you are at 75% of your maximum torque. If you race,then use a higher stall speed.With small tires,you do not need as much converter,especially the shorter tires you are driving on the streets.

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