Quote:
Originally Posted by Jgfnova
Cody-
I used the tow tunes over the weekend to pull trailer to race track, shifting in both tow tunes was spot on. I have driven about 250 miles in the 65 DD and it still seems a little hard shifting, my question is are you able to change line pressure for specific tunes or if you lower pressure for the DD tune does it lower for all of them?
Also just for the sake of knowing, with each tune they are written as 25 hp tow (for example), how much torque would this provide extra with this tune. I know the best way find out would be a dyno and each truck is different but is there a ballpark estimate for each tune as to how much extra torque they provide. Thanks in advance.
John
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All transmission functions are handled per-tune.
As far as the torque goes, when actually measured on a 7.3L, the torque increase will usually be about twice what the horsepower is.....as long as things like injection pressure are able to be maintained. However, measured torque means nothing when pulling a camper up a hill anyway (nor does it really matter at any time). A torque value is a useless number.