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Tires vs gearing question

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Offline longarch

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Tires vs gearing question
« 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
'94 Tracker W/Hard Top
1.5" Front Coil Spacers - 2" Rear Coil Spacers - 2" Strut Spacers
30x9.50x15 Cooper Discoverer STT's
Calmini Front & Rear Tube Bumpers
Bored 30 Over & Head Shaved
Swapped 4:42 gears for 5:12's

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Offline tuxblacray

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Re: Tires vs gearing question
« Reply #1 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.... 
I know the voices aren't real.... but they have some pretty kewl ideas!!! Tux.....  ;-)
I get my Sammi parts here, and you can too... http://www.mikodaindustries.com/http://stores.ebay.com/sticksnstones4x4samuraiparts

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Offline longarch

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Re: Tires vs gearing question
« Reply #2 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
'94 Tracker W/Hard Top
1.5" Front Coil Spacers - 2" Rear Coil Spacers - 2" Strut Spacers
30x9.50x15 Cooper Discoverer STT's
Calmini Front & Rear Tube Bumpers
Bored 30 Over & Head Shaved
Swapped 4:42 gears for 5:12's

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Offline SnoFalls

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Re: Tires vs gearing question
« Reply #3 on: November 29, 2011, 07:09:44 AM »
plug in your numbers Here

IMO, the 4.62's would be better for you than the too low 5.12's.
I don't suffer from insanity, I enjoy it.

Buy-it, Build-it, Beat-it, Part-it

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Offline longarch

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Re: Tires vs gearing question
« Reply #4 on: November 29, 2011, 04:48:21 PM »
http://potogold.fortunecity.com/

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
« Last Edit: November 29, 2011, 04:54:32 PM by longarch »
'94 Tracker W/Hard Top
1.5" Front Coil Spacers - 2" Rear Coil Spacers - 2" Strut Spacers
30x9.50x15 Cooper Discoverer STT's
Calmini Front & Rear Tube Bumpers
Bored 30 Over & Head Shaved
Swapped 4:42 gears for 5:12's