I would like to have more power when going up hills. I don't like my tranny to downshift to 3rd. gear at highway speed because then my motor is running 4000 RPM. Will this product help with my 2005 Gulfstream (2004 W-24 Workhorse) pull grade without downshifting from 5-4-3 and instead just drop from 5-4 gear? Also is this product just plug it in and it learns and adapts to my motorhome? Would I also need a TCM to reduce downshifts? I like to drive highway speed 70-75 MPH but do drive slower at times for my wife, get my point! Will it perform well in the 65-75 MPH range?
( David Andersen, 09/26/2015 )David,
Yes the UltraPower Performance Programming would work well for what you are trying to accomplish. It will help it hold the higher gears going up hills and also get you up to speed easier. The computer will be programmed with your VIN and will be 100% compatible with your vehicle. The TCM reprogram allows the transmission to shift into overdrive at a lower speed under light throttle and it does help a little bit with holding 5th and 4th gears longer.
Just wondering if it will hurt the engine at all not familiar with this upgrade? I have a 2005 Georgie boy Landau with the Allison trans . Also where would the computer be for me to take it out? Thanks a lot ,Jim
( jim, 07/01/2015 )We have been doing the UltraPower programming for over 10 years now with no ill effects on engines in anyway. In fact, we have had initial customers that have been running the UltraPower since 2005 that have been sending in oil samples to Blackstone Labs for analysis on a regular basis with no signs of increased wear compared to stock engines.
The engine computer is mounted right above the radiator and can be accessed from either the front access hatch or from behind through the engine doghouse cover.