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gear ratio calculations

Posted: Fri Apr 21, 2006 12:36 pm
by chimpboy
I don't know if this will be useful to anyone but me, but here you go:

http://members.optusnet.com.au/chimpboy ... ratios.xls

It will calculate resulting speeds and crawl ratios etc for any gearbox you like up with up to six speeds, and dual or single transfer cases. All you have to do is add new ones to the list and they are available for the calculator.

Note that there are four "tabs" on the worksheet - "resulting info", "gearboxes", "transfer cases", and "differentials". Currently there are only a few different gearboxes, transfers and diffs that I have put in data for.

You just select for the different gearboxes etc on the "resulting info" sheet and get your results. Should be easy if you have ever used excel before.
If people send me more gearbox/transfer case/diff information I will update the spreadsheet and upload the new version.

Jason

Posted: Tue Apr 25, 2006 9:59 am
by chimpboy
Added some more gearboxes. Could still use more if anyone has any lists they can email me.

Posted: Tue Apr 25, 2006 12:19 pm
by "CANADA"
needs suzuki spec's :x

Posted: Tue Apr 25, 2006 5:07 pm
by dumbdunce
your ratios for the R151F are wrong - those are the R150F ratios.

R151F is:

1st 4.313:1, 2nd 2.330:1, 3rd 1.436:1, 4th 1:1, 5th .838:1, reverse 4.220:1

Posted: Tue Apr 25, 2006 5:17 pm
by dumbdunce
H150F 80 series NA Diesel (1HZ motor):

1st 4.529:1, 2nd 2.464:1, 3rd 1.49:1, 4th 1:1, 5th .881:1, reverse 4.313:1

H151F 80 series Turbo Diesel, 4.5 EFI Petrol:

1st 4.081:1, 2nd 2.294:1, 3rd 1.49:1, 4th 1:1, 5th .881:1, reverse 4.313:1

HF1A/HF2A (part time/full time 80 - 100 series transfer cases, HF2A available with and without viscous coupled centre diff) : High range 1:1 and low range 2.488:1

almost all landcruisers to 1998 sold in Australia have a 4.10 or 4.11 diff ratio. 105 series diesels are 4.30:1


good toy chimpy

Posted: Tue Apr 25, 2006 6:34 pm
by Beastmavster
Cool that you're hosting this little plaything. Considering it's soemthing you first knocked up in my Vitara days it's probably developed a bit since then.

No suzuki specs? Dude...... I gave them to you in a previous version you wrote.


I'll send you all the ratios I had set up in the previous version from work tomorrow so you can add them.

Posted: Tue Apr 25, 2006 10:41 pm
by chimpboy
PS you may need to have the "analysis toolpak" installed - TOOLS - ADD-INS - ANALYSIS TOOLPAK.

Jason

Posted: Fri Jun 23, 2006 11:40 am
by chimpboy
Would still like to add in more gear ratios if anyone has any to email me.