skyhiranger
Well-known member
A couple of years ago I bought a SCT tuner from 5 star with 87 tow, 87 economy and 87 performance tunes for my '01 F350 CC LB dually with auto and V10 2V and 4.30 gears.
Only mods to the truck are, exhaust Y-pipe, Magnaflow cat, Flowmaster 70 series Big Block Muffler, mandrel bend tailpipe...which I told them about when I bought the tuner (they ask for a list of mods, so they can tweak their generic tunes, I guess?).
Engine runs good with no known issues. Had about 78K on it when I bought the tuner. Has 8xxxx on it now.
My truck is used for towing/hauling. I usually run 65-70 @ 2300-2500ish RPM. It either pulls a 31' toyhauler with my samurai in it or 4 wheelers, or a 26' gooseneck with a couple of vehicles or logs for firewood, or a small car trailer with 4 wheelers or a small vehicle on it. So generally I am not towing that heavy...maybe 12K trailer (toyhauler) weight average (truck weighs 8Kish). I once had a large load of logs on the 26' gooseneck and was grossing almost 32K (that was before the tuner and it actually pulled fine...didn't know it was that heavy until I rolled across the scales.
After I installed the tow tune, I really didn't notice any difference, other than it held a gear longer (engine revved higher) before it upshifts and it upshifts harder/faster. I didn't notice any difference in hp/torque/etc. or it towing/pulling stuff any "easier". I actually don't really like the tow tune shift points in some situations (hard to get it to upshift into OD sometimes, when the engine obviously isn't struggling), so I have ran the economy tune a few times when towing, for the better 3rd-OD upshift point (that I prefer), and there is no noticeable difference in HP/torque between the tow tune and the economy tune, that I can tell.
Before I bought the tuner, I read posts on several forums about how it was a very noticeable improvement after installing a 5 star tune on a V10. I just haven't seen it, in my situation.
What am I missing? Does the tune need to be tweaked? Should I not expect any noticeable HP/torque improvements, given it is a 2V V10 with a 4 speed auto? Are the 5 star tunes not all they are hyped up to be? The tuner has datalogging capabilities...do I need to do that while towing and send that to 5 star and see if they can tweak the tune to better suit my towing situation?
Only mods to the truck are, exhaust Y-pipe, Magnaflow cat, Flowmaster 70 series Big Block Muffler, mandrel bend tailpipe...which I told them about when I bought the tuner (they ask for a list of mods, so they can tweak their generic tunes, I guess?).
Engine runs good with no known issues. Had about 78K on it when I bought the tuner. Has 8xxxx on it now.
My truck is used for towing/hauling. I usually run 65-70 @ 2300-2500ish RPM. It either pulls a 31' toyhauler with my samurai in it or 4 wheelers, or a 26' gooseneck with a couple of vehicles or logs for firewood, or a small car trailer with 4 wheelers or a small vehicle on it. So generally I am not towing that heavy...maybe 12K trailer (toyhauler) weight average (truck weighs 8Kish). I once had a large load of logs on the 26' gooseneck and was grossing almost 32K (that was before the tuner and it actually pulled fine...didn't know it was that heavy until I rolled across the scales.
After I installed the tow tune, I really didn't notice any difference, other than it held a gear longer (engine revved higher) before it upshifts and it upshifts harder/faster. I didn't notice any difference in hp/torque/etc. or it towing/pulling stuff any "easier". I actually don't really like the tow tune shift points in some situations (hard to get it to upshift into OD sometimes, when the engine obviously isn't struggling), so I have ran the economy tune a few times when towing, for the better 3rd-OD upshift point (that I prefer), and there is no noticeable difference in HP/torque between the tow tune and the economy tune, that I can tell.
Before I bought the tuner, I read posts on several forums about how it was a very noticeable improvement after installing a 5 star tune on a V10. I just haven't seen it, in my situation.
What am I missing? Does the tune need to be tweaked? Should I not expect any noticeable HP/torque improvements, given it is a 2V V10 with a 4 speed auto? Are the 5 star tunes not all they are hyped up to be? The tuner has datalogging capabilities...do I need to do that while towing and send that to 5 star and see if they can tweak the tune to better suit my towing situation?