Have any of you guys put a beefier torque converter on a 1/2 ton Hemi? Any thoughts or suggestions would be appreciated.

 

I just installed a 2800 stall speed converter on my 2002 4.7L . I like it... Im still getting used to it. I still need to get the PCM tuned. With the stock tune I took it for a spin with the G-Tech Pro comp and it showed that my 1/8 ET dropped approximately .3...

It Ran 10.03 yesterday... So Im confident with the right tune I should be running at least 9.5 in the 1/8 mile.

Prior to my heads an 212 cams I was running 9.91 in the 1/8 (H/O Cams w/Stock Heads & Superchips) Since I have installed the 212 cams with STOCK tune I have been running consistantly 10.4's all day every day... So I was happy to see it run nearly a flat 10.00... and with the right tune It should pull real hard all the way through the RPM range.

But the converter was a great mod in my opinion and did help tp make up some time in the low end.

SPEED SAFE, AIR RAM

 

I wasn't really looking for it to improve my speed - I want it to handle the extra power I add. As I'm sure you know, with all your mods, the more power you add, the more strain you put on the transmission.

 

How much HP are you adding and by which method (S/C or T/C)? I don't think I've heard of any catastrophic tranny failures with the DF members here running a turbo at 400-500 rwhp.

Not that I'm saying that beefing up the tranny is a bad idea, on the contrary. Building the tranny to hold the HP is great, but I'm just curious as to which method you are choosing and what the projectd rwhp will be.

 

The torque converter acts as the CLUTCH for an automatic transmission. By going to a higher stall speed converter you are in fact creating MORE heat. Your not really able to handle any more or less power... your just able to get your RPM's up to your power band before your transmission locks into gear... (NUT SHELL VERSION).

Put it this way If you are at a stop and you mash your foot to the floor your RPMs will shoot to approximately 1800 RPMS and your truck will begin to pull.... If you threw in a 3500 stall converter and again you mashed your foot too the floor, the RPM's would shoot up to 3500 RPMs and then your truck would begin to pull....

And the same goes from a rolling start.... if your going 2000 RPM's and nail it... your engine will shoot up to 3500 RPMs and pull like a mad dog.... and with your stock converter... it will just start to pull from the 2000 because its already locked in.... now your down shift will rais the rpms but the one with the 3500 stalll will hit harder. If ANYTHING the higher stall would be more stress on your trans.

SPEED SAFE, AIR RAM

 

How much for the new tq. converter AIR RAM? I might need one soon.