View Full Version : stall'n


smallblock413
09-03-2009, 09:07:51 PM
my converter is a fairbanks [5000]....so i'm told...i know it is a fairbanks'97 converter...i called them to inquir about the stall speed[couple years back]...and was told that the part # i gave them was not a shelf item... custom cnvrt..anyways..the car pulls off normal[with a little stall]..not quite 1500..but can foot stall the car to 4200 before tires start to break im sure it would be higher with trans break set higher..[that was with the 388]..i know the torque of the motor plays a big roll in this...but a big block 496 what should initial stall be[guesstimate] 110 centerline sld/ roller cam/about 10.8/9 compression with a3800-4100 cnvrtr...?? just curious:cool:

vegas1974z28
09-04-2009, 01:40:09 AM
I'll let you know in a couple of days :)

quick79z
09-04-2009, 03:29:35 AM
we have a 496, 10.25;1, 660lbs tq 730 hp, 3000 lb datsun, it has a trans specialties 4200 and it stall around 6000

Mwilson
09-04-2009, 04:47:03 AM
My 3,500 +/- ACC converter flashed 4,100 with the 383 and 5,000 with the 408.

jaywill
09-04-2009, 06:06:55 AM
....the more TQ the more stall...:) it's my car sb413 is talking about i didn't know if something was wrong......

BTW: how many rpm did yours turn 2 get it to moving mine seams to b a bit much??? the stall is 3800-4100......

vegas1974z28
09-04-2009, 12:04:01 PM
....the more TQ the more stall...:) it's my car sb413 is talking about i didn't know if something was wrong......

BTW: how many rpm did yours turn 2 get it to moving mine seams to b a bit much??? the stall is 3800-4100......

With my PTC 4500 it would stall to 5k in my old setup. We will see next weekend. I leave at 3000 on a two step though. car can't handle 5000 launch.

jaywill
09-04-2009, 02:13:56 PM
With my PTC 4500 it would stall to 5k in my old setup. We will see next weekend. I leave at 3000 on a two step though. car can't handle 5000 launch.

keep me posted...i'm not going to worry about i just don't want it to drive thru the converter on nos:whine:

rustbucket79
09-04-2009, 04:55:51 PM
There is never too much stall speed, only not enough peak engine RPM.

rustbucket79
09-04-2009, 05:08:02 PM
Or to put it another (better) way, one of my customer's runs a 565 BBC that sees a 175 big shot kit from time to time. Stall speed (w/o 2 step activated) is 6200, there doesn't seem to be any operational issues. Shift point is in the 7500 area.