Automatic - what determines shift point at WOT?
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From: Chino CA
Le Mans Master
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From: Fremont CA
No there is a chamber on the passenger side of the trans with a governor assembly inside. B&M transmissions sells a kit with parts to change your shift points. The old solid lifter BB cars and 70-72 Z28 Cameras had special TH400 trans with 6500rpm upshifts from GM. Even though everyone wanted a 4 speed those auto trans 70 Z28s hauled azz at the drags in the old days, high to mid 13s in the 1/4 mile by just stomping on the go pedal.
Team Owner
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From: Crossville TN
If the TV cable is set properly, there will be no effect on WOT shifts from adjusting it. WOT shifts are controlled by governor pressure....that's all. So, if you want to change WOT shift points, you have to change governor weights/springs or buy one already set up for your transmission.
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From: Crossville TN
Changing your engine or anything on the engine won't change WOT shift points. Now, if you have a THM-400 or other trans that uses a vacuum modulator...and your 'new or improved' engine has a lower vacuum level, your "daily driver" shift points (during normal driving--NOT at WOT) may change somewhat. If you have a TV cable on your trans, engine work will have no effect, as long as you hook up and adjust the cable correctly.
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Thread Starter
Race Director
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From: Chino CA
Changing your engine or anything on the engine won't change WOT shift points. Now, if you have a THM-400 or other trans that uses a vacuum modulator...and your 'new or improved' engine has a lower vacuum level, your "daily driver" shift points (during normal driving--NOT at WOT) may change somewhat. If you have a TV cable on your trans, engine work will have no effect, as long as you hook up and adjust the cable correctly.
It's s a th350.....
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From: Hermosa
Thread Starter
Race Director
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From: Chino CA
Le Mans Master
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From: Hermosa