The SCT X3 Power Flash Programmer for Ford 6.8L V10 powered RV’s includes a 5 Star 87 Octane Tow/Go Custom Tune designed specifically to get the most out of your motorhomes Ford V10 engine.  The SCT X3 is a handheld automotive performance product that increases your vehicle’s horsepower, torque fuel economy and throttle response by optimizing your vehicles PCM (engine management computer).  Today’s vehicles are almost entirely controlled by the vehicle’s computer.  Unfortunately the factory only puts a very conservative program in the PCM leaving RV’s disappointed in how their V10 performs.   With 5 Star’s extensive knowledge and expertise they have developed a PCM tune that will increase performance in all areas from horsepower to transmission functions.  See the Technical Spec’s for a complete overview of what the 5 Star Tune addresses.  Includes: SCT X3 Programmer w/ OBD-II Connection & Cable, USB cable, Data Logging Software, 5 Star Custom Tune & Instructions.

Custom Tuning your 2 valve V10 or 3 valve V10 is not a problem. 5 Star Tuning specializes in tuning RV’s with many V10’s showing great gains overstock. This Custom Tune will address these general areas in how your V10 will operate and function.

Fuel Control
Fuel tables are modified for both better economy and better performance. Most vehicles that go into Open Loop use this fuel table for it’s fueling requirements. Most 2 valve V10’s will not step up into Open Loop (power enrichment) at WOT (wide open throttle) and from the factory are calibrated to operate in Closed Loop which restrains power levels. By correcting this power enrichment function alone can increase power and toque from your 2 valve V10.
Drive By Wire
Improvements will be much better throttle response, step on go pedal, vehicle will respond quicker…this DBW system is a torque driven system, it works by taking a certain amount of torque via engine and wheel and applies it to what the driver foot say it needs; a better way to explain it is it’s a torque limiter. It only allows so much torque at a given pedal position. Stock tables are conservative and numb at best and that’s why one would feel some times a lag or a goofy pedal with DBW systems. For a 3v V10 this is one of the most critical areas that must be addressed and modified to generate more torque and throttle response. By reworking the OEM strategies makes your V10 seems as if 2 more cylinders were added over night!
Timing
Can be increased in most RPM areas for improved Torque and HP. Running a higher Octane fuel will net more power and economy. However, with a V10 2v or 3v even running 87 Octane fuel can yield some respectable gains in power and torque over stock.
Torque Converter Schedules
In all 2v and 3v V10’s Torque Converter strategies can be reworked to lock up sooner and stay locked longer at light cruising speeds to also help with economy…A locked converter is power to the ground. Some times a stock truck when you hit any incline the truck will unlock OD gear and down shift. We can get your truck to hold OD longer and not unlock… now of course on large hills it will down shift…like it should…
On the 3v V10’s, the Ford Strategy is to NOT use all 5 gears in the Torq Shift transmission. Hard to believe I know. In non-tow/haul modes Ford uses only 4 gears when going up through the gearbox. With a custom tune from 5 Star we will use all gears in our shifting and torque converter lock strategies. You will also see quicker shifts, as the truck will proceed into OD quicker than stock strategy. This will provide better power and economy out of your 3v V10.
Shift Pressures
Shift pressures can be increased and timers can be decreased to help keep trans temperatures down and give the truck or any vehicle a better overall feel. In a V10 shifts are quick and firm most of the delay between shifts are eliminated when using custom tunes.
Shift Schedules
Can be modified to an economy or towing calibration. An economy calibration up-shifts will be sooner. Towing calibration shifting will occur higher in the RPM ranges to keep vehicle from lugging and take advantage of the engines peak torque. In 2v V10’s that do not have Tow/Haul mode this can be beneficial when towing. On the 3v V10’s, the Ford Strategy is to NOT use all 5 gears in the Torq Shift transmission. Hard to believe I know. In non-tow/haul modes Ford uses only 4 gears when going up through the gearbox. With a custom tune from 5 Star we will use all gears in our shifting and torque converter lock strategies. You will also see quicker shifts, as the truck will proceed into OD quicker than stock strategy. This will provide better power and economy out of your 3v V10.