 |
11-27-2008, 10:13 PM
|
#1
|
Join Date: Sep 2004
Location: Haledon, NJ
Posts: 5,162
|
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.
|
|
|
|
11-28-2008, 07:13 AM
|
#2
|
|
NJFBOA Supporting Sponsor
Join Date: Feb 2006
Location: HULMEVILLE, PA
Posts: 2,023
|
The shift quality sounds horrible, sounds like it is really slipping on that shift. The trans may be on its way out.
__________________
JSSPEEDANDCUSTOM.COM
|
|
|
|
|
11-28-2008, 09:11 AM
|
#3
|
Join Date: Mar 2007
Location: NJ
Posts: 540
|
I'd try to adjust the TV cable before you tear into the trans. I just had a bunch of problems with my 87 when I swapped the trans. Shift point's were way off and the shift feel was horrible. Re-adjusted the cable and it shift's nice now. If you need a cable or a trans I have both of them sitting in my garage.
|
|
|
|
|
11-28-2008, 10:56 AM
|
#4
|
Join Date: Sep 2004
Location: Haledon, NJ
Posts: 5,162
|
thanks for the input guys I'll keep you posted
__________________
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
|
|
|
|
|
11-29-2008, 09:13 PM
|
#5
|
|
10 Second Club
Join Date: Aug 2004
Location: Hatfield, PA
Posts: 1,292
|
that stuff is slipping.....
|
|
|
|
|
11-29-2008, 09:18 PM
|
#6
|
Join Date: Feb 2005
Location: west orange nj
Posts: 2,415
|
do a trans service
|
|
|
|
|
11-30-2008, 12:54 PM
|
#7
|
|
NJFBOA Supporting Sponsor
Join Date: Feb 2006
Location: HULMEVILLE, PA
Posts: 2,023
|
Changing the fluid is not going to help a slipping problem like that..
__________________
JSSPEEDANDCUSTOM.COM
Last edited by JSPERFORMANCE; 11-30-2008 at 12:54 PM.
|
|
|
|
|
11-30-2008, 02:27 PM
|
#8
|
|
12 Second Club
Join Date: Sep 2004
Location: Vineland
Posts: 928
|
while the trans is out its a perfect opportunity for a converter as well... 
__________________
87 iroc with the usual go fast stuff
heavier than your half ton.
|
|
|
|
|
11-30-2008, 09:43 PM
|
#9
|
Join Date: Jul 2008
Location: NJ
Posts: 819
|
You may need to adjust the TV cable..I'm not sure if you did anything to change the adjustment. If not, your trans may be on its way out. Check the fluid quality. If it's burnt, the trans is bad. A misadjusted TV cable can cause slipping during shifts.
__________________
|
|
|
|
|
11-30-2008, 11:03 PM
|
#10
|
Join Date: Sep 2004
Location: Haledon, NJ
Posts: 5,162
|
I didn't get to it yet because the car is in the next town over but this week I will. The fluid isn't burned or anything and during normal driving it doesn't slip at all, its only when I'm really on the gas. If it does need a rebuild I'll most likely just look for a T56, I miss banging through gears lol
__________________
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
|
|
|
|
|
12-01-2008, 12:53 AM
|
#11
|
Join Date: Jul 2004
Location: West Long Branch
Posts: 13,598
|
Changing the fluid wont do much but enhance the problem.
When we were talking, I thought you had already tried to play with the TV adjustments.
There is a little slip there...little.
__________________
2/20/2013: They Day the ****s Stopped
Last edited by BigAls87Z28; 12-01-2008 at 12:59 AM.
|
|
|
|
|
12-01-2008, 07:54 AM
|
#12
|
|
NJFBOA Supporting Sponsor
Join Date: Feb 2006
Location: HULMEVILLE, PA
Posts: 2,023
|
little??!!!! from the video he has posted I would call that more than a "little" slip.
__________________
JSSPEEDANDCUSTOM.COM
|
|
|
|
|
12-03-2008, 02:55 PM
|
#13
|
Join Date: Sep 2004
Location: Haledon, NJ
Posts: 5,162
|
pretty sure its on its way out. fluid level is good and the cable is properly adjusted according to thirdgen.org tech article. I don't have the money to mess with it too much right now but I'll be sure to bring it to a local trans shop who has done much work for numerous people I know, myself included, and get his opinion. If it needs a rebuild then I'll be looking for a T56.
__________________
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
|
|
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
|
|
