Whats the difference in tunes?

[Jackpine]

Y'know, it's all in what you're looking for. I reduced my upshift/downshift speeds and torque converter lock/unlock points by the max at each setting. I DON'T stand on the throttle moving away from a stoplight and this seems to get me into and keep me in the higher gears at the right time for my style of driving. Notice this has no effect whatever on WOT shifts, they depend only on RPM when you have the throttle over 90% down.

I left the shift firmness at the settings Bill gave me - they feel good. I increased the max RPM to 5400 since that's the point you start to get torque converter ballooning (I don't want to exceed it, but don't feel bad about being near there for a moment when WOT shifts complete). The max RPM needs to be at least 400 above WOT shift rpm to work right. I left Bill's WOT shift points as he set them.

Just in case I ever get close to 99 mph accidentally, say during passing, I damn sure don't want the truck to "hang up" there, so, I increased the max speed to 110.

Hope this helps.

- Jack

[Jon Roseman]

In my style of driving, I do like to get on it at the stop but I also like the pull away power from a moving roll or on the interstate. I'm still upgrading so I'm just looking at tuning it myself right now and eventually I am going to let Bill make me some custom tunes. If I'm running 93 octane on the 93 setting theres no use in messing with the timing is there?

[Jackpine]

Originally Posted by Jon Roseman

In my style of driving, I do like to get on it at the stop but I also like the pull away power from a moving roll or on the interstate. I'm still upgrading so I'm just looking at tuning it myself right now and eventually I am going to let Bill make me some custom tunes. If I'm running 93 octane on the 93 setting theres no use in messing with the timing is there?

I don't think there's a 93 octane tune, but there IS a 91+ octane tune (which tries to be a catchall for anything at or above the 91 octane level. If you use 93 octane gas, I'd try setting the timing to +1 degree (0.5 degrees for each octane point above the tune level). With the engine all warmed up, "stand" on it and listen for ping. If you hear any, back off.

Oh, and Bill would do some other things to optimize your use of 93 octane juice over what YOU can do!

- Jack

[Jon Roseman]

Ok, I'll give it a shot with the timing and continue to fiddle with the firmness. Thanks again, Jack!

-Jon