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03-13-2016
Hey guys i have my topswapped tuned on 91 octane running 14.5* of timing. I have 0 kr going through the rpm range but if i smash on it and the transmission downshifts im getting bad flash kr around 8* sometimes more sometimes less. Ive read this is usually caused by the tcc not releasing soon enough. I have dhp tuner but i have no knowledge on how to tune the tcc. So anyone with some help or advice would be greatly appreciated! Thank you!
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03-14-2016
in the tcc unlock table, list here the throttle percentages and speed that it currently shows.
03-14-2016
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03-14-2016
Sent from my LG-D851 using Tapatalk
03-14-2016
Sent from my LG-D851 using Tapatalk
03-14-2016
Any ideas anyone?
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03-14-2016
in your 4th normal unlock table, lower the 234.xx down to 31.25 and see if that helps. if not then the lowest i'd go is 25%.
03-14-2016
Ok thanks
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03-16-2016
I lowered the tcc release tables and nothing changed with the flash kr.
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03-16-2016
in the dhp scanner is tranny stuff, scan that too. shift time and such.
03-16-2016
Ok i will try that as well thanks scotty. I dont know if it matters but i did notice i didnt get any flash kr from 2-1 downshifts justs 3-1 or 4-2
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03-16-2016
thats no fun. what if you dont mash it all the way, just enough to make it down shift, then get on it?
03-16-2016
Ill have to run a scan tomorow but i think i tried that before and still got some kr it wasnt as bad like 3 or 4* but it still happens
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03-16-2016
how many cells does all this kr happen for? does it fade off fast? or keep climbing on ya?
03-16-2016
Just a FYI, 3-1 and 4-2 downshifts are not good on factory parts inside the transmission. I wouldn't do alot of those if I was you.
03-16-2016
I would have to look at the scan but ive monitered it with tpro and as soon as i slam it i get a half second of approximately 3.5* then it spikes to 7 or 8* for about 1.5 seconds then back down to 3.5 ish and then 1 and then its gone. From start to finish it probably 5 seconds of kr in total
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03-16-2016
Well i have been very easy on the car as far as downshifts go but i would rather figure out this issue so if for whatever reason im forced to mash on it i dont have to worry about blowing the motor.Originally Posted by Fivefingerdeathpunch
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03-16-2016
maybe time for a hd tranny upgrade. you got the tuner, that part is easy now.
aka i think your tranny hates you lol
03-16-2016
im willing to bet its false kr, the tranny is what maybe taking a slow death.
03-16-2016
A HD parts swap wouldn't change anything, only the diff and gear ratio is different. All the other parts like clutches/drums/input shaft are still the same between the two and both would suffer the same death. Better off just building a stronger unit.
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