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Power Strokes
2017+ 6.7 Aluminum Super Duty
2017 White Gold
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[QUOTE="Black AOD, post: 1535480, member: 16536"] Soooooo.....My trans had weird shifts and flares and hiccups even when it was 100% bone stock, tooning it with added HP/TQ has made the trans even unhappier. When it's cold it actually performs great but once it reaches operating temps it does odd things in 2-3 and 3-4 and sometimes even 4-5, the 3-4 shift flare is HORRIBLE. The 2-3 shift is lazy like it almost doesnt want to shift and 4-5 shift does a weird high rev thing, but this has only happened to me twice in the past 10k miles. The 2-3 and 3-4 issues are an every day thing but I have to be at 50% + TPS to get the 3-4 shift flare, 2-3 is lazy no matter what speed I'm at apparently. Also, before anybody tries telling me that I can fix all this with tuning, I CAN'T. I've tried. 10 revisions later with Chris @ TSD and 4 different tuner packages from other tuner's and multiple factory TCM resets and relearns....It isn't tuning. It's the trans itself. The 3-4 shift flare was happening stock, the other two issues did not appear until after I had tooned it. According to Chris @ TSD, my max effort tune (tune 5 on SOTF) puts me around 550-560whp right now. I run around on tune 3 99% of the time so I'm guessing I'm around 450whp most of the time on that tune. Doing the Drop in VGT and 10mm cp4 I have planned, I have the ability depending on turbo choice to make up to 700whp on a big tune but to be more realistic lets says 650whp. At that power level, my stock trans is not going to make it, I already know that. That's basically 100+ HP over my max effort now which I rarely go on anyway. So because of all that garbage above I just spewed out, I plan on having Andy Warren refresh my 6R once it fully gives out with his Street Comp Package which is all new Raybestos GPZ clutches and added counts in forward, direct, intermediates and overdrive. He modifies the pump and valve body for added fluid flow (idk why but he does) and it gets all new OE gaskets and seals and full basic parts refresh and cleaning, the usual stuff. It would come with a new billet Precision Ind. TC as well, they rate these packages for 800 rwhp without any billet internal parts in them. This would be perfect for me for reliability wise driving every day and for the amount I tow. Fwiw...I don't like how hot my trans runs. Operating temp normally is at like 199* - 205* and even running unloaded at 80-85mph on the highway it can get up to 215*-220* which to me is dumb. When I do the Warren 6R Trans, Dennis @ Strictly Diesel will get my $ for his added trans cooler to go behind my front grille. When I tow heavy ish, the numbers get to a point that I am not OK with at all. 17-19 6R trans sucks compared to 11-16. This much I've figured out. I hope these 2020 6.7L SD's with 10-Speed Auto's pan out to be something worthwhile. I think Mike D's blue KR truck had trans problems but then again he is lifted and compounded making 725 whp, Jimmy K's truck has trans issues, Jared D's truck has a roasted Trans, mine is always pissy, and I know several more who have had issues. Whatever TCM changes occured in 17+ trucks for the 6R, I know I don't like it and a lot of the big tuner's don't either. [/QUOTE]
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