i was wondering what gear i should pull in with 3.73 gear ratio. right now i am pulling in 2 Low. the only mods done to the truck is a SCT tuner by innovative diesel. i also have a 4 inch exhaust.
Like two years ago when I did my first pull ever I started in 4low Drive, and as I started to get down the track and gain some speed the tranny was actually locking and unlocking the TC, which absolutely killed my momentum and RPM's.
The next pull I started in 4lo 2nd gear and left it there and I absolutely ran out of gear. It was way too low, I had the RPM's in the red and the truck speed and wheel speed sucked because I was out of gear. I would have shifter it to Drive, but I was afraid the TC lockup would have killed my RPM's again.
I don't know what gear to pull in now, so that's why I asked about 4hi.
I pull a 03 6.0L SCT and a few other mods. I got the stock injectors maxed out. running 33" tires I start in 2nd 4low it will tac 4000RPM's i then manually shift into 3rd gear, converter locks and I can hold about 20MPH wheel speed at 3500RPM's if track is to tight at the end I have a converter unlock switch. Has done pretty well against 500RWHP dmx's they hate getting beat by the 6.0
my buddy filmed me, i just have to get him to send me the video and i will post it!!!!
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