Final drive calculation.
11-16-2014, 05:59 PM
Post: #3
RE: Final drive calculation.
well, your speedo is 30% over reading, so a final drive that is upto 30% taller would make the gap smaller, but will also have a HUGE effect on the drive itsself. I went from final ratio 4.3 to 3.3 (which is less then 30%) and it killed the speed/acceleration i had, but gave me comfort and better fuel economy in return.

If you like the way it drives, i would do what ditn recommends, there are different companies making stuff like that. Otherwise go for a bit taller gearing and live with less then 30% overreading on the dash (a stock 80s Toyota will overread by 10-20% anyway, highly inaccurate stuff).

Have a play with a calculator like this:
http://www.cargister.com/calculator-gear-ratio

"It's all about the heart, the people who focus on parts, turbo's and all that stuff...they're just losers."
-Shinji Minowa
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Messages In This Thread
Final drive calculation. - Aram - 11-16-2014, 12:57 PM
RE: Final drive calculation. - ditn - 11-16-2014, 01:12 PM
RE: Final drive calculation. - The Doctor - 11-16-2014 05:59 PM
RE: Final drive calculation. - Aram - 11-16-2014, 09:50 PM
RE: Final drive calculation. - The Doctor - 11-17-2014, 02:28 AM
RE: Final drive calculation. - Bean - 11-17-2014, 12:40 PM
RE: Final drive calculation. - Aram - 11-17-2014, 01:53 PM
RE: Final drive calculation. - Uzelac - 11-17-2014, 03:12 PM
RE: Final drive calculation. - Aram - 11-19-2014, 07:14 PM
RE: Final drive calculation. - Uzelac - 11-20-2014, 02:00 PM
RE: Final drive calculation. - Bean - 11-17-2014, 05:10 PM
RE: Final drive calculation. - Aram - 11-18-2014, 12:24 AM
RE: Final drive calculation. - banpei - 11-19-2014, 09:16 PM
RE: Final drive calculation. - ditn - 11-19-2014, 09:51 PM
Re: RE: Final drive calculation. - Bean - 11-20-2014, 07:39 AM
RE: Final drive calculation. - Bean - 11-21-2014, 12:09 PM
RE: Final drive calculation. - Aram - 11-24-2014, 06:57 PM
RE: Final drive calculation. - Uzelac - 11-25-2014, 09:42 PM
RE: Final drive calculation. - The Doctor - 11-24-2014, 10:31 PM
RE: Final drive calculation. - Bean - 11-25-2014, 08:14 AM
RE: Final drive calculation. - Aram - 11-25-2014, 10:04 AM
RE: Final drive calculation. - Bean - 11-25-2014, 05:41 PM
RE: Final drive calculation. - Aram - 11-26-2014, 07:29 PM
RE: Final drive calculation. - Bean - 11-26-2014, 08:02 PM
RE: Final drive calculation. - The Doctor - 11-26-2014, 11:48 PM
RE: Final drive calculation. - ditn - 11-26-2014, 11:49 PM
RE: Final drive calculation. - Uzelac - 11-27-2014, 01:32 PM
RE: Final drive calculation. - Bean - 12-14-2014, 09:37 AM
RE: Final drive calculation. - Uzelac - 12-24-2014, 03:08 PM

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