14.73@95 mph CCSB LTZ on 20's w/5.3

[vettelovralexand]

It is a function of torque produced and so if you increase that value, the stall speed changes. My truck stock only stalled to 1800 but with forced induction i cant even get to the stall speed before pushing through the brakes, however it is somewhere over 2k.

[Jon A]

Yes, the converter's stall speed is mechanically determined and will change with the engine's torque. And I'm telling you guys that speed is 2500+ with a relatively stock 6.2. The only thing holding it to 1500 RPM is the computer. Where exactly the 5.3 will end up I don't know, but it'll be alot higher than 1500.

[Jon A]

So when I got home from work today.... This is in 2WD:

 

 

 

[vettelovralexand]

Every converter is different and certainly the DI 2014+ trucks have more torque than the last gen engines do down low. I cant say i am surprised. Ill take video when I get home from vacation showing mine and what happens with and without a timing cut from the computer.

[SILVER SLED]

A 6.2 has a diff converter. Usually though the more powerful motor will have a "tighter" converter in a given platform.

[Newm]

So when I got home from work today.... This is in 2WD:

 

 

 

 

Oh man...you let off...I was just getting excited as I know what happens once you get past 4K or so on the tach.

[Jon A]

 

Oh man...you let off...I was just getting excited as I know what happens once you get past 4K or so on the tach.

 

Yeah, I had to as that was in my driveway....

 

 

It is a function of torque produced and so if you increase that value, the stall speed changes. My truck stock only stalled to 1800 but with forced induction i cant even get to the stall speed before pushing through the brakes, however it is somewhere over 2k.

 

 

Keep in mind the 2014's have much better brakes than the older trucks. I was able to hold it past 2500 there in 2WD, in 4WD it would have been even easier.

[vettelovralexand]

 

 

There is my truck being held right at the point where timing is cut. Justin is still digging into why, but it makes it difficult to launch consistently.