Torque converter stall speeds. Numbers inside.

[Turbo1dr]

Precision Industries Vigilante': The Part # on converter is: 239725 (#7)

Stall speeds according to my data log. This was staging at the drag strip with the car sitting still.

At 0psi it stalls 2900rpm
At 5psi I'm at 3700rpm
At 8psi I'm at 4100
At 10psi I'm at 4450
At 12psi I'm at 4600 RPM sitting STILL on the line!

Rev limited to 6300 rpm

This summer I never had a problem with the car hitting the rev limiter under WOT kick-down. Now that it's turned cooler I've had it hit it a couple of times. This was with a full throttle kick-down from 4th to 3rd and also 3rd to 2nd on a different test run. Boost was 20psi. The trans seems to shift fine and firm at the proper shift points if I roll on the throttle and don't "flash" the converter.

I was wondering if any of you guys using this same part number converter knew what your stall speeds were while brake boosting in comparision to mine? I'm thinking I'm needing a lower stall converter.

Car has a 200-4R with 3.42 gears. The rest is in my sig.

 

[bird]

i noticed my convertor is loosening up over the years especially with the addition of the t-brake. i dont know if that is normal but the car is working pretty well so i am not concerned. maybe just making more power? convertor is a 9" ac n/l. i would say your convertor could be a little tighter, especially if you plan on using a t-brake

FAST logs
2004 foot brake 10.51 @130, 1.66
0 psi= 2200
5 psi= 2950
10 psi= 3350

2005 foot brake 10.14@137, 1.59
0 psi= 2300
5 psi= 3100
9 psi= 3400 gone

2006 t-brake 10.01 @136, 1.52
0 psi= 2400
5 psi= 3200
8 psi= 3600
10 psi= 3800
12 psi= 4000
15 psi= 4200

 

[Turbo1dr]

I wound up swapping my torque converter with my nephews. It's a vigilante also. I didn't think about getting the numbers off of it but it stalled at 3750 at 10lbs of boost before the tires broke loose just foot braking it. I'm sure it would go past 4000 if I had a transbrake. I can tell its much tighter on the street and drivability is better also. I also done only one full throttle test and it didn't hit the rev limiter this time. Max RPM recall was 5700 at 20psi of boost.

 

[Turbo1dr]

I just got back from testing and the lower stall works much better. Full throttle from 45mph to 120 mph the rpm never exceeded 5700 at any shift points.