Posted By: sixpackgut
converter stall to rpm shift point - 08/18/11 04:48 AM
is there an rpm spread that is ideal?
converter stall to rpm shift point
Posted By: Cab_Burge
Re: converter stall to rpm shift point - 08/18/11 07:01 AM
Quote:Probally but every motor and converter may not be the same, my T/A 8 inch drops down to 5700 RPM if I shift it at 6000 up to 7000 RPM, if I shift it above 7000 RPM if will drop down to 5800, to 6000 RPM depending on from first or second. I run the Mopar brand 2.77 low 1st gear set so the RPM drop is more than with a stock standard 2.45 low gear set
is there an rpm spread that is ideal?
I have always operated on the theory that you have to go to the tarck and find out where to shift each combination by testing it 
IHTHs
Posted By: MoparBilly
Re: converter stall to rpm shift point - 08/18/11 01:47 PM
Define "Ideal"??
We used to have a loose 8" that would stall 52-5400 behind the typical junkyard 284-484 440. You know, the kind of motor that was all done at 5800! 400-600 rpm is definitely not ideal, but it sure was fun!! It would usually be a tenth quicker, and 2 mph slower than the common 10" 3600.
If it's strictly a race car, especially a heavy one, how well the converter and torque curve match, may determine a lower shift point rather than raising the stall. 10% above peak torque rpm used to be the rule of thumb for stall setting, but I think modern agressive converters can be a little closer to peak, and deliver the best performance.
We used to have a loose 8" that would stall 52-5400 behind the typical junkyard 284-484 440. You know, the kind of motor that was all done at 5800! 400-600 rpm is definitely not ideal, but it sure was fun!! It would usually be a tenth quicker, and 2 mph slower than the common 10" 3600.
If it's strictly a race car, especially a heavy one, how well the converter and torque curve match, may determine a lower shift point rather than raising the stall. 10% above peak torque rpm used to be the rule of thumb for stall setting, but I think modern agressive converters can be a little closer to peak, and deliver the best performance.
Posted By: MR_P_BODY
Re: converter stall to rpm shift point - 08/18/11 02:13 PM
Ideal I use 1500 rpm... I dont know if its
the best but that works for my set up so I dont spend
to much time at the stall point on the shifts
I use 1500 rpm... I dont know if itsthe best but that works for my set up so I dont spend
to much time at the stall point on the shifts
Posted By: sixpackgut
Re: converter stall to rpm shift point - 08/18/11 02:28 PM
1500 is what i was thinking. 5000 stall shift at 6500.
right now i have a 5300 and shift at 6800 but i havnt tried anything else
right now i have a 5300 and shift at 6800 but i havnt tried anything else
Posted By: Al_Alguire
Re: converter stall to rpm shift point - 08/18/11 02:36 PM
I would be thrilled with 1500 rpm, cant seem to get anyone to get one that loose. Gonna have Figueroa cut one open and give it a try. The last two stall at 6400 and 6200 respectively and running all out I shift at 8200 
With a glide in the car it is killing the ET all out.
With a glide in the car it is killing the ET all out.
Posted By: MR_P_BODY
Re: converter stall to rpm shift point - 08/18/11 02:46 PM
Quote:
1500 is what i was thinking. 5000 stall shift at 6500.
right now i have a 5300 and shift at 6800 but i havnt tried anything else
Mines a little low right now with the W-9 but worked
fine with the W-2... its 5600 stall and I shift at 7800
and hit the traps at 8100-8200 on the W-9
Posted By: Triple Threat
Re: converter stall to rpm shift point - 08/18/11 03:13 PM
Mine flashes to 4600 and the shift light comes on at 5800.
Posted By: POS Dakota
Re: converter stall to rpm shift point - 08/18/11 04:43 PM
Quote:
Ideal
the best but that works for my set up so I dont spend
to much time at the stall point on the shifts
That's what I've been told repeatedly from many sources.
But I am not doing it since my truck is street driven.
Using a 3800 stall in my truck and a 6200 rpm shift point.
I doubt it will really suffer any. Or should I say I wont be missing anything.