Hey all, I am having a problem again with my 10r80 ( 3 engines; warranty tune, 2 trans).
When I go WOT the tuner has it shifting hard ( 700whp already has the slowest pulley that will fit), on the 2-3 it will spin a bit, with a 3rd gear command seemingly about a 400rpm no flare ( except tire OSS)...Example command shift at 7000rpm completes shift at 7400rpm, its been this way its entire life pre and post built...the rest of the gears have about 150-250 spread with no flares....
What it does is command 3rd and spins then bottoms out shift recovery but instead of pulling 3rd after it settles it either goes directly into 4th or pulls 3rd for .5 seconds and goes directly into 4th...I was told by tuner to take to the track to get more grip.....did same thing.....so he said trans was bad....
Ok as you can tell this car would break a rich man and im not, having been thru engines won't go into it all...im old grey beard I rarely open it up....but when I do im in it....first new car ever 2019 Mustang GT Premium A10...
Had the trans built the builder as he started tearing into it was messaging me saying it looks literally like a prefilled crate engine he can't even tell its been run 0 shavings or clutch material...( 9k miles)..
He tearing the clutch groupings down out of the drum and he said zero wear on the clutches not even glazed with a few hot spots on the steels, said he could put those back in a regular car or truck and run 150k miles.....
We had to do a crap load of machining and using Ford selective parts to get the upgraded clutches ( they were thicker clutch and steels, not drop in at all) and he invited me and sent videos and we did this in coordination with Raybestos ( McLeod) took a while but we got each groupings within the specs Raybestos gave us and the sprag along with everything else was perfect...
I went on and via mine and others needing comically picked up and dropped off at doctors/hospitals because they can climb into SUV, so I had bit a break in tune as instructed by Raybestos ect using each gear, no skip shift to seat the clutches, I even used manual 1st and 2nd which fire B group as Holds...
1200 or so miles went on...
I was fighting with Ford over factory paint issues and left there shaking, a ZL1 pulled up and I old man got beside him legimately checking out his car which from in front and side looked good, I gave him old man thumbs up props, he thought I wanted to race he smashed and instinctively I did too and it kinda felt like I spun fell back and then pulled back....
It got to bothering me my car is near 9s runs 139 in 1/4 on dragy...im like surely its not still doing it ( the mph we were at would have absolutely been bottom or 3rd though one of a handful of times I wasn't logging literally over 2 years )...
I replicated it and sure enough it's doing the same thing it was I can roll and smash or stop doesnt matter it shifts FIRM snaps tires loose on shift not nuts a bump seemingly from 61mph to 79-81mph and back down but it gives it that 4th....which then loads the shit out this tvs gen 3 coyote at 12 to 1 compression on 93 octane putting the trans at bottom of 4th instead of 3rd and ive seen 2.00 load.......
So the well known tuner that told me to build it tried a few things and had me unplug the "dyno plug" ect same thing....now they aren't even trying or telling me what to try......again im left to figure things out....
So interestingly I go out there and put it in paddle mode and it ( even with my highly imprecise shifts) runs its best 0-60 on my hybrid drag pack NT555RII tires ( 3.42) best 330ft, best 1/8th and best mph of 109 in 1/8th ALL 2 tenths faster and 1.5 mph better than my best last year pretrans build....AND 3rd held 1.84 load at bottom of gear and pulled out perfectly.....seemingly taking mechanical hold out the equation......
I've been looking in the captain insano trans section to see if I can find something like I had in standalone where when spinning it would only let it shift once per XX time to settle and not just blow thru gears.....
I suggested to tuner hey raise the 3rd gear shift up real high, on this engine less dangerous than bending a rod at low rpm or rattling on high load at 93 to test nothing yet...
Just wondering if anyone can think of something in the trans section I might can adjust ( I don't have access to theirs but a decent base file for my maf scale ect)...
Seems to me at best I thinks its ready for another gear at worst something in the tune is possibly limited and asking for 4th....there are no codes...
Any help is appreciated...
Posting a csv with it in auto vs me manually....
Manual Shift 8th Mile Best 0-60 Street Ever.csvSkip3rd.csv