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Teds89IROC · 11-27-2008, 10:13 PM

I have the 700R4 in the iroc and I've noticed that when I really get on it from a slow roll the rpm's climb to about 5500 (redline) then it shifts and they drop to 4000. Due to TPI my power begins to fade at about 4000 rpm (looking at my dyno chart) I vaguely remember before I did the header swap (crap flowtech shorties to hooker SC LT's) the car would never scream that high. I'm pretty sure the TV cable only adjusts firmness of shifts but could it be that its way out of adjustment and its shifting too late? Maybe I screwed something up when I installed the LT's or its just coincidence...any ideas?

video example:

11-27-2008, 10:13 PM	#1
Teds89IROC Join Date: Sep 2004 Location: Haledon, NJ Posts: 5,162 iTrader: (0)	Shifts (700R4) I have the 700R4 in the iroc and I've noticed that when I really get on it from a slow roll the rpm's climb to about 5500 (redline) then it shifts and they drop to 4000. Due to TPI my power begins to fade at about 4000 rpm (looking at my dyno chart) I vaguely remember before I did the header swap (crap flowtech shorties to hooker SC LT's) the car would never scream that high. I'm pretty sure the TV cable only adjusts firmness of shifts but could it be that its way out of adjustment and its shifting too late? Maybe I screwed something up when I installed the LT's or its just coincidence...any ideas? video example: __________________ 1989 IROC-Z 355 LT1 T56 Swapped 2016 Chevy Colorado LT 3.6 v6 2008 Jeep Grand Cherokee Laredo 4.7L RIP 12/29/2016 1998 Honda CBR 600F3 2003 Yamaha FX140 Last edited by Teds89IROC; 11-27-2008 at 10:33 PM.