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View Full Version : awesome gear calculator


Supra_devil
06-25-2009, 12:44 PM
i found this a while ago and finally Dled it and tried it out recently. its pretty sweet.


Calculates maximum speed at "redline" in each gear and speed per 1000 RPM
Chart of RPM's for each gear at 10 Km/h (or 5 Mph) intervals
Calculates rev drop and actual RPM value at each gear change
Calculations performed in Metric or Imperial units
The chosen units are maintained between runs
Pre-set gear sets or manual input (additional gear sets added)
Comparative gear ratios displayed graphically
Compound ratios calculated and displayed for each gear
Results can be saved to a text file or printed
If known, you can enter the RPM at which peak power is generated and you can then compare shift points at max RPM and Peak Power (leave blank if not known)
Defaults to last entered values at program start
will do up to 6 spd transmissions.
includes a wheel size caluator so you can see changes based on your new tire sizes as well.

And it already has the gear ratios for the W58 and R154 programed in. you go into tools>ratios>toyota>gearboxes> and then select the tranny you want. it has preprogrammed ratios for quite a few different trannys and manufacturers.
and you can save different setups as saved txt files, so if you wanted to check out a few different tire sizes and rear end combos you can save them for quick future referance.

http://locost7.info/gearcalc.php

Beals
08-03-2009, 03:35 PM
hmm, I might just have to bookmark this for later use. thanks ;)

WeDgE
08-04-2009, 06:31 AM
I used this when my speedo cable broke. Worked great!