Advice on high stall torque converters?

[T14PPA]

Hi im a bit clueless with auto torque converters. Can some explain what the hi stall TC do? And what the different numbered TC mean? Cheers

[V8KILR]

A high stall just means it has a higher stall then the factory torque converter, which stalls at around 2000rpm. Around 2000rpm is great for the sequential turbos as they are making good power by then, but no good for a single turbo that doesn't start making boost until 3000+ rpm. So with the single turbo, you get a higher rpm stalling TC so it will easily rev to an rpm range where you are making boost and thus enough power to move quickly from standstill.

[T14PPA]

A high stall just means it has a higher stall then the factory torque converter, which stalls at around 2000rpm. Around 2000rpm is great for the sequential turbos as they are making good power by then, but no good for a single turbo that doesn't start making boost until 3000+ rpm. So with the single turbo, you get a higher rpm stalling TC so it will easily rev to an rpm range where you are making boost and thus enough power to move quickly from standstill.

 

Thanks but what do you mean by stall? Im running twins at the moment but have just bought a gt45 (budget kit). Just waiting to fit it

[V8KILR]

It has a few different meanings, but for a street car I think this is a good way to work it out. Put the car in Drive and press the accelerator very quickly to full throttle, and note the rpm at which the car actually takes off. This is your stall speed.

 

For drag racing, stall is often defined at where you over power the brakes and spin the rear tires or if using a transbrake, the max rpm it can go to with the transbrake engaged.