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ZUKIWORLD Discussion Forum => Technical Discussion - Beginner / Repair => Topic started by: longarch on November 28, 2011, 09:44:32 PM

Title: Tires vs gearing question
Post by: longarch on November 28, 2011, 09:44:32 PM
I have recently purchased a '92 Samurai which has 33" tires, 4.16:1 transfer case reduction, and 5.13:1 gears. It also sports the 8-valve Tracker swap engine. Top speed in this Sammy is 45 to 50 mph. My question is should I go to the 4.62:1 gears? Is anyone running something similar and if yes, what do you recommend? This Sammy will not be rock-crawled or 4-wheeled hard. I will be using it primarily as a daily driver and for hunting so I need the 60 mph.

Jeff
Title: Re: Tires vs gearing question
Post by: tuxblacray on November 29, 2011, 02:30:29 AM

6:5:1 Transfer case gears... puts you back in the game with 5th gear. I have your same woe and am watching all of the classifieds for them.... 
Title: Re: Tires vs gearing question
Post by: longarch on November 29, 2011, 05:32:39 AM
Thanks. I should have clarified why I mentioned the 4.62:1 gears. I am running the 5.13:1 Tracker/Sidekick gears and I have another set of 4.62:1 Tracker/Sidekick gears that give me the option I considering. Would the 4.62's help me tremendously with my situation? I am totally unaware of how to calculate that.

Jeff
Title: Re: Tires vs gearing question
Post by: SnoFalls on November 29, 2011, 07:09:44 AM
plug in your numbers Here (http://www.grimmjeeper.com/gears.html)

IMO, the 4.62's would be better for you than the too low 5.12's.
Title: Re: Tires vs gearing question
Post by: longarch on November 29, 2011, 04:48:21 PM
http://potogold.fortunecity.com/ (http://"http://potogold.fortunecity.com/")

http://potogold.fortunecity.com/suzuki_rpm_mph_calc.zip (http://"http://potogold.fortunecity.com/suzuki_rpm_mph_calc.zip")

WOW!!! This is one awesome spreadsheet.

Std reduction,  4.62 gears, & 33" tires = 69.8 mph at 4K rpm in 5th gear
4.16 reduction, 4.62 gears, & 33" tires = 62.3 mph at 4K rpm in 5th gear
Std reduction,  5.13 gears, & 33" tires = 62.9 mph at 4K rpm in 5th gear
4.16 reduction, 5.13 gears, & 33" tires = 56.1 mph at |removethispart|@ 4K rpm in 5th gear

Original equipment, reduction, tires & gears = 68.9 mph at |removethispart|@ 4K rpm in 5th gear

A very impressive spreadsheet.......................................................

Jeff