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Old 02-22-2011, 12:43 AM   #13 (permalink)
zonker
500 Mile Metro Traveler
 
Join Date: Jan 2011
Location: Sun City, CA
Posts: 183

'89 Dakota LB - blue - '89 Dodge Dakota V6 LE
90 day: 19.8 mpg (US)

'17 Fiat 124 - SunFiat - '17 Fiat 124 Spider Classica
90 day: 30.51 mpg (US)

'89 Metro - The Egg - '89 Geo Metro Base
90 day: 50.71 mpg (US)

'94 Alto - The Box - '94 Suzuki Alto Ce-L
90 day: 39.5 mpg (US)
Thanks: 14
Thanked 13 Times in 10 Posts
Quote:
Originally Posted by cfg83 View Post
zonker -

I like to use this to play with gearing :

Fatboy Raceworks » Graphical Transmission Gear Ratio Calculator

CarloSW2
Love that - THANKS

As for how the car currently responds to the TC and lugging the motor, the 1-2 and 2-3 shifts in the trans are vacuum modulator signal dependent, and the 3-4 and OD lockup are ECU dependent, which looks at load and speed related variables to make it's choice.

there are a fair amount of hilly roads out here in so cal wine country, and right now, in the car's present state of tune, can climb the freeway grades at 65mph without unlocking the TC or downshifting into 3rd, so I know from a power perspective, the present gearing is plenty good.

I'm going to play with that fatboy gear calculator and see what my options are. who knows, with the 3.08's and a taller tire, i might have 3rd gear match what 4th gear was before, and have a REALLY tall 4th for flat road economy.

time to play

oh, and as far as the measure of difficulty, it will involve a complete drum to drum rear axle swap, which is not a lot of bolts, but i think my back and my girlfriend are going to hate me...
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