shift point questions

Predator support for Ford gas vehicles

Moderator: mikel

Post Reply
muddyXLT
Posts: 9
Joined: Thu Mar 25, 2010 2:22 pm

shift point questions

Post by muddyXLT »

I'm new at the tuning thing and have a question. I have an 04 f150 and im not sure how to adjust the shift points. I put 35's on it and got the speedometer right but im in 3rd gear too long. when it shifts into 4th its really high on the rpm's and then i have to let off the thottle some to shift into overdrive. any suggestions on how much to tune up or down? Thanks
User avatar
mikel
Posts: 58685
Joined: Tue Jan 16, 2007 1:17 pm
Location: DiabloSport World Headquarters
Contact:

RE: shift point questions

Post by mikel »

First thing Id wonder is if the speedo is actually correct.
If so, adjust the WOT shift point down a few hundred RPM and try that.
Mike Litsch
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST

[email protected]
muddyXLT
Posts: 9
Joined: Thu Mar 25, 2010 2:22 pm

RE: shift point questions

Post by muddyXLT »

Ok thanks i will try tomorrow after work but what does WOT mean
muddyXLT
Posts: 9
Joined: Thu Mar 25, 2010 2:22 pm

RE: shift point questions

Post by muddyXLT »

another thing i should add is its a daily city driver and i dont get on the throttle much. I just dont see why Im in 3rd for so long. thanks again
diablojesse
Posts: 8
Joined: Mon Jan 17, 2011 11:28 am

RE: shift point questions

Post by diablojesse »

WOT = Wide Open Throttle
- Jesse
DiabloSport, Inc.
561.908.0040
ESM
Posts: 9
Joined: Sun Jan 30, 2011 12:29 pm

RE: shift point questions

Post by ESM »

What's the difference between changing shift points using RPM versus MPH? I'm also new at modding just trying to figure out what some of these parameters do. Thanks!
User avatar
mikel
Posts: 58685
Joined: Tue Jan 16, 2007 1:17 pm
Location: DiabloSport World Headquarters
Contact:

RE: shift point questions

Post by mikel »

You have to hit the commanded MPH before it will allow the RPM shift to happen.
Mike Litsch
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST

[email protected]
ESM
Posts: 9
Joined: Sun Jan 30, 2011 12:29 pm

Post by ESM »

so right now even with rev. limit off and shift point (RPM) set at 6000, car shifts around 5600 almost every gear going WOT from a dead or rolling stop. However, if i'm already driving (let's say highway) and go WOT shifts are even lower at about 4k...do I need to change the RPM shift points or the MPH points to fix this?

Really I'm just trying to improve "pass-ability" so reduce that lag from gas --> down shift --> go!
Post Reply

Return to “Predator Ford Gas”