Hi Stall or Low Convertor for 4wd Auto

[Red Rover]

I have been getting some mixed reports. I am not an auto guru. Some have said lower the stall the better. Others say a higher stall or at least factory. I don't know what makes the difference to be specific. Keen any thoughts and why

[Loanrangie]

high stall will keep the revs up when crawling, too low a stall and the engine may stall while trying pull away.

[vorno_18]

with a high stall you will have slip then it will engage at high revs so likly to spin the wheels when not wanted

i would say a stronger factory stall

[pongo]

My very uneducated guess is that make sure the motor is built to match the stall converter. No point having a super torquey chev and a 3500 stally and vice versa.

Also im guessing final drive ratios,s will play a part in it too.

Im only guessing but im looking at the overall picture.


Cheers

[jcclures]

I have been told that Hi Stall converters are good for performance and Low Stall converters are good for economy, and factory converters are in the middle. I am not shore if this is right but this is what I have been told.

[bogged]

Call Rodney at Wholesale Automatics in Bayswater Melbourne.

HE is a guru. he was in this board for a while too.

[wanna]

depends on engine and gearing to small stall is bad to high causes high temps

[TOY-08V]

depending on the motor and gear ratios, but a hi stall will decrease the amount of engine braking available and when decending down a steep hill u'll be on the brakes more (not a good thing), if ur running a nice big torquey motor u shouldnt need a big stall (say a V8 or V6)

[simkell]

need more info. what motor and specs.
what are you planning on using it for.
weight of vehicle
gearing, including size of tyres.

low rpm high torque - low stall

high rpm, high torque/ horse power - higher stall.

you need to match the convertor to the desired torque range and driver style.

[MQ080]

you need to match the convertor to the desired torque range and driver style.

This is true, however to answer the original question lower stall is better for offroading.

[simkell]

you need to match the convertor to the desired torque range and driver style.

This is true, however to answer the original question lower stall is better for offroading.

not so if you have a low stall and the motor doesn't produce torque down low, ot could stall, and not have the torque to creep along.

[wanna]

if you have low gears if the stall speed is to low you will end up with drive all the time and either stall engine or just push through the brakes. One good rule is have a look at cruzing rpm what you use most dont go higher then that or you will just heat up your auto and use fuel

[MissDrew]

It all depends on your lowest crawl ratio. If you have a super low crawl and a low rpm converter then you will either stall every time you try to stop the rig or you will never be able to stop it as it will just push threw your brakes.

Why do you think Cheezy`s mav had a 2500rpm stall put in it after it had the dual t cases.