I was following a duramax tonight on my way home, and i had a to race him, but i lost 2 him on the bottom end, he got me off the line, i was told my truck had a new valve body before i bought it, and it seems like it is delayed shifting, like it should be shifting faster, i would like to truck to get off the line faster, and shift quicker? Any tips or tricks? can i adjust the valve body? I did adjust the bands and the trans does not slip, i want to smoke this guy off the line not just @ the top end. I love the way it pulls when the converter locks up but its a dog off the line. Please help guys. also whats the difference from a 47re and 47rh and how to tell what i got, the trucks a 97 2500 cummins 12valve with ex-cab and4x4

 

If you think that duramax was quick off the line, dont run against a 99 or newer Ford.. they are generally a little quicker..

As for your "delayed" shifting, I would assume thats been adjusted for towing. I think you can get worked over VB's that might help your issues.

 

Like he said. Be lucky it wasn't a Ford.

 

ditto and i added a valve body assistant set to lock up at 18 mph normally and at 8 mph w/ a flip of a switch, when i gotta get the win. also look in to govenor springs, i have 3 k springs, bhaf, and 90 hp injectors, and does preatty good,

 

i have to secound on the powerstroke, my dad had an 05 6.0 and damn that thing got up and went

 

KC didn't you mean 03.5+ Powerstrokes. Cause from 99-03 they were 7.3's and there not that quick off the line.



Luke

 

392hemix you have a 47RE they have an electronic valvebody hence the E in the model#.

 

its funny these guys in the max and strokes still want to size up the old 12v. thats saying something about these old trucks.

 

haha, thanks for the input. my old 12 valve buggies down, and when it comes down to it i know that if we hooked chains, i would most likely tow them all around town. and if i couldnt i would get my friends 05 cummins and put a real hurting on them....COMPAIRING ORANGES TO ORANGES or just keep moding my truck, who should i talk to about getting more info about the valve body assistant? if my converter locked up @ 18mph or even 8mph with a flip of a switch that would be nasty..... i also am thinking about doing the 3 grand gsk!!!!!!

 

You can pretty easily put a TC lockup switch in... Ground out the 54 PCM (check that to make sure) wire through a switch. When the switch is on, it grounds out the TC lockup wire and lacks the converter. Remember though, if you lock that thing at full throttle you run the risk of breaking a lot of parts in that trans. Upgrading the TC to a low stall unit will help you a lot down low.