shifting too soon with 3.23
04-25-2002, 09:41 PM
#1
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Car: 88 IROC-Z
Engine: 383 Stroker
Transmission: TH350
shifting too soon with 3.23
I got a 3.23 rear installed today and the tranny shifts too soon in my opinion. Almost as soon as I start moving, it shifts into second. I had 2.73 gears and the tranny is a TH350. All I can think of to do is screw the modulator valve screw in as far as it will go and see what difference it makes. I'm going to eventually get a t56 and 3.73 or 4.11 rear, so I don't want to put a lot of money into my transmission. Is there anything else I can do to make it shift later? Thanks.
:hail:IROC-Z
:hail:IROC-Z
04-25-2002, 10:04 PM
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Car: 99 Formula
Engine: LS1
Transmission: T56
Axle/Gears: 342
You need to either adjust your governor for the new gears or get a new one designed for 3:23s. This is your problem, I have the same problem, just need to get it fixed.
For now, I just manually shift if I plan on using higher rpms.
For now, I just manually shift if I plan on using higher rpms.
04-26-2002, 07:38 AM
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Car: 99 Formula
Engine: LS1
Transmission: T56
Axle/Gears: 342
Originally posted by rocky383
Thanks, Mark. I don't think about manually shifting. That's a good idea.
:hail:IROC-Z
Thanks, Mark. I don't think about manually shifting. That's a good idea.
:hail:IROC-Z
I think right now my car in D shifts into 2nd at like 5mph. That really sucks.
04-26-2002, 11:27 AM
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Car: Sexy
Engine: Stock
Transmission: Slipping
How do you adjust the governor? I have this problem as well with my 3.27's. And will this change where it kicks down also? Being in third gear after turning a corner is getting old.
04-26-2002, 11:52 AM
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Car: 1987 Camaro Z-28
Engine: 6.3L Victor EFI
Transmission: Tremec TKO 600
Axle/Gears: Moser 9"/4.11 Trac-Lok
Lighter weights & springs will make it shift later, heavier ones, earlier. Kits are available at most trans shops, including some of the online ones.
04-28-2002, 06:21 PM
#7
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how do you know what weights and springs you have now ?
i suppose wieghts a re stamed with a code of some kind and springs are different colors ? just curious, my 84 Z28 shifts immediately after takeoff into 2 and 3rd right after that under 25mph, but thenm its 3.73 car, so... is in 4th gear by 40mph, tv cable is tight ands it iwl kiock down if you get on it halfway down, all the way down is too much car too fast, lol and 2-3 shift is getting spongy... dunno why... i added a bit of brake fluid to help swell seals etc in tranny, seems to be making 2-3 shift better now, may add a bit more soon
i suppose wieghts a re stamed with a code of some kind and springs are different colors ? just curious, my 84 Z28 shifts immediately after takeoff into 2 and 3rd right after that under 25mph, but thenm its 3.73 car, so... is in 4th gear by 40mph, tv cable is tight ands it iwl kiock down if you get on it halfway down, all the way down is too much car too fast, lol and 2-3 shift is getting spongy... dunno why... i added a bit of brake fluid to help swell seals etc in tranny, seems to be making 2-3 shift better now, may add a bit more soon
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