5 star tunes + shift kit???
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Laughing Gas
Joined: Oct 2017
Posts: 1,143
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From: ND
5 star tunes + shift kit???
I know i could ask them but I am curious if most everyone just uses what they send or if they have it further tweaked.
i installed the valve body part of a shift kit 2 years ago and that increased the transmission pressures, but the tunes also have increased trans pressures...i dont want to overdo it!
so after they sent tunes today I remembered i forgot to add that in my comments that I wasnt interested in increased presure but i did add that I had the shift kit already installed. So i contacted them and they sent some new files with stock pressures.
am I overthinking this? Does anyone run a shift kit as well as increased pressure from the tune? I think i am going to try the 87 performance tune first....
i installed the valve body part of a shift kit 2 years ago and that increased the transmission pressures, but the tunes also have increased trans pressures...i dont want to overdo it!
so after they sent tunes today I remembered i forgot to add that in my comments that I wasnt interested in increased presure but i did add that I had the shift kit already installed. So i contacted them and they sent some new files with stock pressures.
am I overthinking this? Does anyone run a shift kit as well as increased pressure from the tune? I think i am going to try the 87 performance tune first....
Laughing Gas
Joined: Sep 2019
Posts: 892
Likes: 160
From: Gainesville
I talked to 5 Star a couple of times and ordered an 87 octane economy, 87 octane tow and 92 octane performance tow (for traveling over mountains).
I told them my engine/gear ratio mods and they sent me the tunes.
I was not aware you could order with different pressures. Have not towed yet, but am pleased with the 87 octane economy tune.
5 Star has some good people from Florence, SC.
I told them my engine/gear ratio mods and they sent me the tunes.
I was not aware you could order with different pressures. Have not towed yet, but am pleased with the 87 octane economy tune.
5 Star has some good people from Florence, SC.
Tuned
Joined: Jul 2005
Posts: 273
Likes: 2
I keep mine in the 87Perf mode almost exclusively. Have used the 91Tow a few times, but it tends to hold first gear a little too long for my liking when in town. I live at 6000ft and regularly cross the Continental Divide, with and without trailers. I've found unless I'm pulling more than 5000 lbs, I don't need the 91Tow very often. The 87Econ was useless to me out here. Of course, I ordered the tuner BEFORE I installed my gears. I make sure that I update the gear ratio whenever I'm changing tunes, but I'm not sure if they do anything different in their programming when they have this information up front.
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Laughing Gas
Joined: Oct 2017
Posts: 1,143
Likes: 13
From: ND
Well, even at stock pressures the 87 perf tune shifts a bit hard for my taste with the shift kit installed, it might be the what seems to be slightly raised shift points causing that. But other than that fact I like how it drives and the torque converter actually stays locked.
i saw i could edit the shift pressures with the ITSX software so maybe might look into that. I also did ask SCT but haven’t got a response back about the shift points. Might just have to call tomorrow.
i saw i could edit the shift pressures with the ITSX software so maybe might look into that. I also did ask SCT but haven’t got a response back about the shift points. Might just have to call tomorrow.
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Big_Man_Brad
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