gear ratios...

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23crate

Well-known member
Joined
Sep 26, 2014
Messages
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Location
new zealand
thought this is a bit useful
 

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I am very curious about this chart but a little confused.

My big old Chrysler weighs in at 4100 lbs and had a 383 with a 3.38" stroke. I have 3.23 gears in the rear end so 3.23x 3.38 is 7.91. If I look at a 3.38" stroke and a 4,000 LB car it says I should be 11.75 is my gearing really that far off?
 
Look again. The chart says multiply your axle ratio by transmission first gear ratio. Your torqueflite has a 2.54 first gear, so 3.23 x 2.54 = 8.20

The chart, I'm sure, provides the "ultimate" gear ratio for acceleration from a standing start and doesn't mention tire size, which is a factor among many others...

This is useless information for your fat Chrysler... it's built for smooth, luxurious comfort, not neck-snapping stoplight launches.

.
 
Look again. The chart says multiply your axle ratio by transmission first gear ratio. Your torqueflite has a 2.54 first gear, so 3.23 x 2.54 = 8.20

The chart, I'm sure, provides the "ultimate" gear ratio for acceleration from a standing start and doesn't mention tire size, which is a factor among many others...

This is useless information for your fat Chrysler... it's built for smooth, luxurious comfort, not neck-snapping stoplight launches.

.

My “fat Chrysler” is far from what your thinking of so this info would actually be useful as a point of reference. Thanks for pointing out my mistake though.
 
As Dr Crank said, I think this isn't as useful as it appears. Without factoring in tire size and other factors (like cam and engine specs to start), this doesn't seem to result in anything helpful, in my view.
 
My “fat Chrysler” is far from what your thinking of so this info would actually be useful as a point of reference. Thanks for pointing out my mistake though.

I didn't mean to offend... far from it... everybody here is trying to help, myself included. Please tell us what you're trying to achieve...

.
 
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