Hey Neal

When you had your transmission rebuilt you said that you went with a 2000 stall torque converter, what kind of performance gains did you see?. You have a 5.4 and i have a 4.6, what kind of performance gains can i expect if i change to a 2000 stall torque converter?.

Thanks

Larry.

 

HI!... SPEEDER : I hav'nt had a chance to run the truck at the dragstrip yet, so I don't know. I'm going to have my tranny builder build me a custom 2400RPM stall converter before WINTER and that is most likely the one I'm going to test. I really hav'nt noticed a difference between the stock 1600RPM and the 2000RPM on the street. Your 4.6 makes it's max torque higher in the powerband than my 5.4 (2300RPM). So I would suggest to you to go at least a 2400 rpm stall if your looking for performance in the 1/4.

 

Hey Neal

Thanks for the information. With a 2400 stall converter do you think i will have any problems driving it on the street?. I don`t race my truck but i do bend the speed limit when ever i can.
If i went with a 2000 stall would it make any difference from the stock one?.

Thanks again

Larry.

 

Speeder,

Higher stall won't make much difference on the street. Under light acceleration you would hardly know the difference. Under heavier throttle apps the revs will climb quicker.

Think of the torque converter somewhat the same as slipping the clutch when you start moving in a standard shift. The higher stall speed will help get the revs up quicker when you take off under heavy throttle.

Modern lockup converters will still lock once up to normal speeds and won't cause driving problems.


Just for reference, there was an article recently on a performance converter for a Lightning. Took it from 13.3s to 12.8s if I remember correctly. Half a second is a good gain, especially in an already quick truck.

You probably woudn't see that much going to a 2000 stall. Your 4.6 powerband is similar to my 5.0, so a higher stall rating would give you more of a performance gain.

 

Hey signmaster

Thanks for the information. If anyone has any other information, let me know

Larry.

 

Hey Speeder!

You know, I had mentioned to you this past weekend about having a custom built torque convertor made for my transmission. They are not cheap! Depending on who you have build it for you, it could range from 5 C notes to 1 G.

Talk to Steve first if you are serious about doing this. You really need to consider what you will be using the truck for. The higher stall speed convertors will definitely help your truck in the 0 to 60 and 1/4 mile runs. As for me, I'm waiting until I complete my engine package to determine what additional tranny mods I want to do.

 

i guess you guys got your torque converters custom built, but is there anywhere on the net you can get a 2400-2500 stall converter for my E40D tranny in my 97? also, after i install one, would i need to get my superchip reprogrammed to handle the new transmission settings? thanks

 

Hey BullittMcQueen

I still have the stock torque converter, i was just trying to find out if it was worth changing to a higher stall, and if i would gain anything by doing it. If you are looking for a higher stall torque converter there is a place called level10, they can custom make a torque converter for any stall you want. I don`t have there address but check over on the Lightning page, some of those guys are using them and im sure they can help.

I hope this helps.

Larry.