ML converter stall

[mike diesel]

What is the stall speed on the green precision ml converter that used to come standard in the "alligator stage 5" kit? Doesn't seem to be much on this topic. I started a converter thread awhile ago on duramax forum and this exact question was asked by member with no response or insight.

Seems i can stall mine out to about 2200 rpm fairly easy. I thought the ml converter was a tighter stall but then I've heard it was pretty close to the Suncoast 1058 which if I'm not mistaken is about a 2200 stall??

I built my trans with the alligator kit coming up on 2 years ago and have had zero issues with my converter and it seems to do very well at spooling my s472. Was just curious on the supposed stall speed.

 

[quinton]

1800rpm.

 

[THEFERMANATOR]

My barney edition(as my wife calls it) stalls to 1800. At 1800 any more throttle just builds more boost.

 

[mike diesel]

Alright cool.

 

[Mike L.]

More important is; what is the flash point?
Flash point is found when you let your truck idle in gear at a stop without the foot on the brake and nail the throttle. At what rpm di the truck launch? That is your flash point.

 

[mike diesel]

I will check flash point next time I drive the beast.

 

[quinton]

More important is; what is the flash point?

Flash point is found when you let your truck idle in gear at a stop without the foot on the brake and nail the throttle. At what rpm di the truck launch? That is your flash point.

Tuning would effect this though?? Running 60 mph I can feel the stall at 1800rpm. Kinda feels like it's slipping in and out.

 

[mike diesel]

I don't see how tuning could affect flash point.

 

[Chevy1925]

Running 60 mph I can feel the stall at 1800rpm. Kinda feels like it's slipping in and out.

thats not how you find "stall"

 

[gmc502]

More important is; what is the flash point?
Flash point is found when you let your truck idle in gear at a stop without the foot on the brake and nail the throttle. At what rpm di the truck launch? That is your flash point.

great info
Is that w/ or w/o the tires spinning off the rims.:angel:

 

[quinton]

thats not how you find "stall"

I didn't say that's how I "find" the stall. I just said I can feel it. Going down slight hills.

 

[quinton]

I don't see how tuning could affect flash point.

Because you can have it to where your truck takes off at whatever rpm you want. I've tuned my truck to keep the power out until 2800rpm.

 

[Chevy1925]

I didn't say that's how I "find" the stall. I just said I can feel it. Going down slight hills.

its still not the stall quinton

 

[Mike L.]

Tuning would effect this though?? Running 60 mph I can feel the stall at 1800rpm. Kinda feels like it's slipping in and out.

At 60mph and 1800 rpm's your converter is locked. You will feel nothing but motor pulling as the converter is nothing but a shaft at this point.

 

[mike diesel]

If I'm not mistaken I would say flash point is directly related to stator/turbine design. In which you can't change in tuning because it's physically a hard part that would need changing. I think your confused with something else.

 

[JoshH]

I don't see how tuning could affect flash point.

Several factors can affect flash stall speed including power and weight. The same can be said about brake stall, but weight isn't a factor there because the truck isn't moving.

Here's an article about converters that has some good info about stall speed. It's for gas cars, but the principles are the same.

 

[quinton]

At 60mph and 1800 rpm's your converter is locked. You will feel nothing but motor pulling as the converter is nothing but a shaft at this point.

Ok. But why does it only do it at 1800rpm then? Any other rpm's it runs fine.

 

[quinton]

If I'm not mistaken I would say flash point is directly related to stator/turbine design. In which you can't change in tuning because it's physically a hard part that would need changing. I think your confused with something else.

I'm not confused with something else, think about it. If you have pulse, timing, boost, all your tuning set really low until say 3000 rpm it won't go until 3000rpm. But I can see flash point working if you adjust your tuning to have a lot of low end power at 2000rpm then you could find your flash point if it's over 2000rpm.

 

[quinton]

its still not the stall quinton

What is it then.

 

[mike diesel]

I'm not confused with something else, think about it. If you have pulse, timing, boost, all your tuning set really low until say 3000 rpm it won't go until 3000rpm. But I can see flash point working if you adjust your tuning to have a lot of low end power at 2000rpm then you could find your flash point if it's over 2000rpm.

I don't care how hot your tuning is, you aren't going to instantly make 6-7-800 horse right off the throttle. I'm not trying to argue here, I'm just trying to understand what your trying to explain.

If I'm understanding mike right, flash point is when you mash the throttle from a dead stop then at what rpm the truck lunges forward at. Seems like stall speed and flash point are related to each other as in a high stall converter would have a higher flash point.

Now if you are correct quinton then i can definitely see how tuning will affect the flash point.:hug: