Not enough HP for high stall converter??

96Redvert

New Member
Apr 1, 2005
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I have 96 mustang gt and i'm in the process of having the transmission rebuilt. So i figured i'd get a high stall convert along with the J mod. The guy rebuilding my transmission called me and says my mustang doesn't have enough horse power for a 2800 or 3000 RPM stall converter. Nothing i have found online says horse power is the main factor just when you reach your power band. am i wrong? I think he is BS'ing me but i want to make sure before i tell him to put it in any way. My mods are PI intake manifold, K&N intake, Magnaflow cat-back, and the J mod(on the way).

Thanks

-john
 
All I can say is while you have your tranny apart you gotta get an upgraded converter in there... Did he have a recommendation of one that he thought WOULD work???
 
if your 96 GT is close to stock, the guy is probably right. to get the best performance out of a torque converter, it needs to be the proper stall for your application. you'd need to talk to someone who specializes in it to find out what stall is right for you.
 
if your motors stock a high stall will hurt you. hes right, you dont have to power to turn one that high. i wouldnt go with a stock convertor either. i would get one with around 2-300 more rpms then stock, i think you'll like it.
 
A good 3000 Stall TC will not hurt you, a stock GT TC is 2400 - 2700 RPM to begin with. I think you could go higher than that if you wanted to though.
 
TGJ said:
A good 3000 Stall TC will not hurt you, a stock GT TC is 2400 - 2700 RPM to begin with. I think you could go higher than that if you wanted to though.
Im sorry but a stock stall for a 99-04 GT is 1700-1800 tops...and thats on tccoa.com's web site and is a 13" unit. MY is a 9.5" set up between 3000-3200rpm. If stock was 2700 stall I would leave it at that!
 
Also to note so there is no confusion.

The 93 - 98 Mark VIII TC is the same as the 96+ Mustang GT TC. There is no difference between a 96 GT TC and a 98 GT TC, I am not going to look for the threads on TCCOA to verify that info.
 
the stock converter is tight maybe no more than 1800-2000. the transmission shop may be right. i have seen guys run 2400 stall and be very satisfied. the only way to find out is to call and talk to torque converter manufactures and get suggestions. a 24-2800 to me in my opinion is the way to go
 
The TBird used a 12" TC, the mustang used a 11 and 1/4" TC. Different TC's.

This info here.

Application..............minimum stall speed....max stall speed

'98-up Mustang GT...2324...2737
'98-up Crown Vic....2024...2440
'99-up Police or handling package Crown Vic...2319...2750
'99-up 4.6L F150...2145...2505
'03 Marauder...2555...3011


That info is taken from a FACTORY FORD DVD as rated by FORD, regardless of application. Read that thread and JL tells you where he got that info from.

I have been here awhile now and am seeing why Stangnet has a horrible name. I am glad I don't ask any tech questions here, cause I wouldn't get the right answer.
 
propellerhead said:
From what I've read, brake stalling and flash stalling will net different stall speeds.

That is correct.

To get an approx estimate of your TC Stall, from a complete stop, put your car in 2nd and floor it. Do not hold the car back with brakes. Your tach will flash to your approximate stall speed.

I am not going to get into the reasons for it being approximate and not the actual value as they are quite trivial.

I know when I did that with my Stock 12" TC, my Tbird would hit 1900 RPM, when I upgraded to the GT TC, it would hit 2400 RPM and now with the 3500 TC, it is hitting about 4000. My 3500 TC was rated at 3500 - 3800 RPM.
 
your cars power has nothjing to do with it. i run a 2800 stall, multidisk lockup. i ran it with mere bolt ones. made a nice difference. now, with over 450 rwhp it stalls around 3200 with the transbrake, and is jsut meaner. you will benefit from a higher stall. if you plan on staying NA go 3500+ if you plan on boost go lower