|
Minotaur Automotive Tuning Software Tune your own 7.3L Diesel! If you have a question or comment about Minotaur? Post it here. Also, check out our Facebook group: Facebook - Minotaur Tuners |
|
Thread Tools | Display Modes |
|
#1
|
||||
|
||||
Hitting Rev Limiter
What did I do wrong?
It will hit the limiter between shifts, only when wide open. Does not seem like it is the trans slipping, just wont shift. |
#2
|
||||
|
||||
Do you have the WOT shift parameters set too high? RPM Anticipated shifts?
__________________
Tuning, flashing, burning chips, and repairing all aspects of 7.3L Powerstrokes. SEVEN 7.3L-powered vehicles in the driveway. Two didn't come that way from the factory! |
#3
|
||||
|
||||
WOT shifting is set for 3400 rpm, fuel limit should not really come in till around 3600ish.
I cannot find anything labeled "RPM Anticipated shifts", I did find RPM Maximum to Predict Upshifts - which is set to 1000 RPM. |
#4
|
||||
|
||||
Just wondering if you came up with anything on this. Mines doing the same thing, kind of like it shifts too softly for stage IIs and lets it over rev. Seems like the shits need to be harder and faster. This is a tune I got from Bill for the IIs so Im assuming anything the has to due with it engine wise should be pretty good and some tranny tuning should take care of it. I messed with some stuff a little but would like some guidance before I go too far. Any tips would be appreciative.
Thanks John
__________________
96 7.3L E4OD, Ext. Cab 22x,xxx miles Intake, Exhaust, 6.0L IC, 4 Wheel Disc Brakes. Dana 60, Electric Fuel, SD HPOP, 6" Miter cuts, 3" plenums Rosewood Stage IIs, Built tranny. Minotaur with some tunes from Bill Planning: Traction bars, HPOP, Nitrous?? |
#5
|
||||
|
||||
Is the shift happening, but not holding?
If so try decreasing the Target Slip Time, or increasing the Trans. TV Pressure, or both for that particular shift. |
#6
|
||||
|
||||
It defiantly seems like it tries to shift.
I couldn't find the target slip time, I read that in another post but couldn't find it. I did raise the TV pressure and it helped a little on the 1-2 shift but it still isn't right.
__________________
96 7.3L E4OD, Ext. Cab 22x,xxx miles Intake, Exhaust, 6.0L IC, 4 Wheel Disc Brakes. Dana 60, Electric Fuel, SD HPOP, 6" Miter cuts, 3" plenums Rosewood Stage IIs, Built tranny. Minotaur with some tunes from Bill Planning: Traction bars, HPOP, Nitrous?? Last edited by 907DAVE; Fri, April 1st, 2011 at 06:57 PM. Reason: I made a bo-bo. |
#7
|
||||
|
||||
The over run will increase as power increases, with Stage II's shoot for about -350/400 rpm from your actual target RPM. Also rev limiter will go the other way so add rpm to your target point. If you want 3600 input 3900 or so..... hope this helps.
__________________
F250 Reg Cab - 1,172 HP / DJ# / 11.56 Fuel Only / 10.94 Nitrous / Dyno Run 10-2009 -------------------------------------------------- Wide Open Performance - Engine, Chassis Build Swamps Diesel Performance - Injectors & IDM Gearhead Automotive Performance - Stage II Cam |
|
|