manually shifting auto tranny
11-22-2015, 08:48 PM
#1
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Car: 1982 camaro berlinetta
Engine: 5.7 350 swap
Transmission: th350 swap
Axle/Gears: 26 spline 7.5 ring gear
manually shifting auto tranny
I have a thm200c transmission I know most of you are going to tell me to swap it out but I'm working on that lol. I want to know if I can manually shift my transmission while racing and at what rpm should I shift my transmission thanks for the help.
11-22-2015, 08:57 PM
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Car: 1988 Trans Am
Engine: L03
Transmission: 700R4
Axle/Gears: 10 Bolt 2.73 Open
Re: manually shifting auto tranny
Absolutely you can. If God and GM didn't want you to, your shifter would just have PRND. I shift my cars manually quite frequently.
11-22-2015, 10:26 PM
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Car: 1982 camaro berlinetta
Engine: 5.7 350 swap
Transmission: th350 swap
Axle/Gears: 26 spline 7.5 ring gear
Re: manually shifting auto tranny
Ok thanks you for your quick reply and do you know at what rpm to shift while racing.
11-23-2015, 12:34 AM
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Car: 1988 Camaro
Engine: 355, 10.34:1, 249/252 @.050", IK200
Transmission: TH-400, 3500 stall 9.5" converter
Axle/Gears: Ford 9", detroit locker, 3.89 gears
Re: manually shifting auto tranny
Shift points depends on your engine combo. Where do you make peak HP and peak TQ at, how your power curve is shaped, when your power falls off, etc. Plus your gear ratio and tire size.
The idea is to shift close to Peak HP and have your RPM drop back down into the heart/fat part of your torque curve or even at your peak torque RPM
The idea is to shift close to Peak HP and have your RPM drop back down into the heart/fat part of your torque curve or even at your peak torque RPM
11-23-2015, 02:49 PM
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Car: 1982 camaro berlinetta
Engine: 5.7 350 swap
Transmission: th350 swap
Axle/Gears: 26 spline 7.5 ring gear
Re: manually shifting auto tranny
Well I'm not sure how much hp I'm putting out I just swapped in a Chevy 355 and I kept my stock transmission which is the stock thm200c. But every time I shift I usually shift like at 5,700 pm and drops down to 2500 rpm but it hesitates to get back up after the shift
11-24-2015, 11:45 AM
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Car: 1983 pontiac firebird trans am sl
Engine: 305 v8
Axle/Gears: 3.23
Re: manually shifting auto tranny
maybe shift a lil bit sooner .try 5,400 or even 5,000 .idk tho
i got a stick shift and i always shift at about 5,000 even sooner unless i got a chick in the car and im showing off lol
i got a stick shift and i always shift at about 5,000 even sooner unless i got a chick in the car and im showing off lol
11-24-2015, 02:53 PM
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Car: 1990 Formula Firebird
Engine: 305 TBI (LO3)
Transmission: WC T-5 out of an 88 T/A
Axle/Gears: 10 bolt, 3.42 & Torsen Posi
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