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Old 06-03-2005, 12:34 AM
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Switch pitch benefits?

Hey all, I have a th300 switch pitch in my oldsmobuble right now, and I was just wondering what kind of benefits (EXACTLY) the switch pitch gives you? I have heard conflicting/vauge ideas of torque multiplication and stuff, I was just wondering what practically one would notice while driving? Is this setup (2 speed switch pitch) better or equal to a th350?
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Mark

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Old 06-03-2005, 05:13 PM
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No-one knows anything about switch pitches?
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Old 06-03-2005, 06:25 PM
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since the original post was late in the day and I have a day job, there was no response from me..... sorry

The switch pitch converter is exactly that....... high and low stall speed in one unit. Say low stall is 1400 , high could be near 2200...... or low could near 1800 and high would be near 2600. That is an example stall range only

More stall , slightly higher torque multiplication in the high stall mode.

The fins inside the converter move/change angles. Only open or closed , they are not varible IE: 40% or 75% change in angle.

2 speed switch pitch is not a correct description of the operation of the switch pitch converter.

The switch pitch t-400 was primarily used on heavier vehicles. When the throttle was mashed hard..... a switch was activated, the converter went to high stall mode to allow the engine to rev up slightly higher givng the heavy car a better take off from a stop.

Comparison of a t-400 switch pitch to a regular t-350 is an apples to oranges compar-o IMHO

I hope this answers most of your questions



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No-one knows anything about switch pitches?
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Old 06-03-2005, 09:30 PM
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Hey thanks for the reply, all I meant was as far as the driving experience goes (acceleration/driveability) is my 2 speed switch pitch worse then a th350, as for example is it worth swapping in a th350? Would the car be more fun to drive or have more accerlation (in your opinion)? and would my city gas mileage maybe improve? Just things like that, from a purely day to day experience opinion.
Thanks
Mark

I would also like to know exactly how much torque multiplication the higher stall gives.
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Old 06-03-2005, 10:56 PM
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I believe I follow your " 2 speed switch pitch " comments now..... you must have a ST-300 tranny? Super Turbine 300

A tranny swap to a t-350 will give you a lower first gear , 3rd gear is 1-1 as the ST-300 is in 2nd gear.

Can't give you an exact amount of torque increase


Quote:
Originally Posted by flipp121
Hey thanks for the reply, all I meant was as far as the driving experience goes (acceleration/driveability) is my 2 speed switch pitch worse then a th350, as for example is it worth swapping in a th350? Would the car be more fun to drive or have more accerlation (in your opinion)? and would my city gas mileage maybe improve? Just things like that, from a purely day to day experience opinion.
Thanks
Mark

I would also like to know exactly how much torque multiplication the higher stall gives.
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