Thread: Tips on basics? Like rev limit and shift points
View Single Post
  #4  
Old Mon, July 13th, 2009, 10:10 PM
cleatus12r's Avatar
cleatus12r cleatus12r is offline
F Your Yankee Blue Jeans
  
Join Date: Jan 2009
Location: Somewhere in Montana
Posts: 2,665
cleatus12r is a name known to allcleatus12r is a name known to allcleatus12r is a name known to allcleatus12r is a name known to allcleatus12r is a name known to allcleatus12r is a name known to all
Default
Here are some things I did to make a kick-*** tune for a TDE1 that I came up with quite a while ago. I have since changed a few of the shifts to make it more daily-driver friendly. This one shows a "liveable" 1-2 part throttle shift point. Also, the 3-4 shift is quite a bit lower in this tune than the original due to a (what I call) nice 45 MPH 3-4 shift like a super duty has. This shot doesn't include pulsewidth or SOI changes. The blue lines on the Mass Fuel Desired graph are stock "fall offs". The black line in the Fuel Limit vs. RPM is the stock map.




Notice the early 2nd gear lockup during a late 2-3 (heavy throttle) upshift. By the time it shifts to 3rd, it's already locked.


However if you're making WOT runs, the shift points should occur at the WOT shift parameters vs. road speed/TP input.

Questions, comments, or errors.......

Feel free to critique.
__________________
Tuning, PCM flashing, and burning chips for 7.3s since 2008. Repairing all aspects of 7.3L Powerstrokes for 25 years.
Eight 7.3L PSDs in the driveway including a 1994 Crown Vic and 1973 F100/2002 F350. Looking for the next victim.
Last edited by cleatus12r; Mon, July 13th, 2009 at 10:23 PM.
Reply With Quote