Hello everyone this is my first post and I’m having issues with my new cougar. It’s a 1968 with a 1984 mustang 302 that is “built” in it at least has aluminum heads,carb,intake and msd ignition. I just put a c6 in that I got off marketplace has a 3500 stall art carr converter and artcarr trans brake. I just finished installing it and I have a race style shifter but the car doesn’t seem to go anywhere at low speeds I’m not a expert on what different stalls mean on torque converters and not sure if it have one that is to high. It’s acting like it’s low on fluid which it is not. Any help is appreciated.
What’s your application for the car? Unless you’re drag racing a lower stall speed would be more street friendly. Stock converters are considerably lower stall speeds around 1800.
1 Like
I drive a 1967 Mustang GTA with a 302, Hughes 2500 RPM stall convertor and an AOD. With a 4.11 rear-end I still cruise at 75MPH @ 3000 rpm.
The thing with a stall convertor is that until you get the RPMs above the stall speed, it will slip. If you are not driving at 3500 RPM+ then the convertor will slip and make the car seem sluggish.
Step on the brake, rev it up to about (in gear) 3500RPM and then get off the brake, That is what it was designed for.
1 Like
Are you sure yor c6 valve body doesnt have a reverse pattern(moʻst do). So your trying t o take off in third gear instead of low
1 Like
A high stall torque convertor will feel like a slipping clutch.
1 Like
Yes looking into it it it’s a reverse manual valve body from artcarr with a trans brake