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ZUKIWORLD Discussion Forum => Suzuki 4x4 Forum => Topic started by: chrisvitarasport94 on April 07, 2004, 03:39:06 AM

Title: Gearing & Diffs, after bigger tyres
Post by: chrisvitarasport94 on April 07, 2004, 03:39:06 AM
I'm missing my 5th gear now that I have 30.5"/235's on my '98 8V 1600.   :(
I had to use 4WD-L for the first time tis weekend, and whilst I understand gearing etc I don't know much about the options available for swapping diffs ect. What ratios are popular and where from?

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Title: Re: Gearing & Diffs, after bigger tyres
Post by: Zukipilot on April 07, 2004, 05:29:00 AM
To help out on road you would need to reduce the axle gearing. Calmini http://www.puresuzuki.com sell sets of 5.83:1 gears. I believe that you currently have 5.12:1 so it would be a big help. I'm running the 5.83's with 33" tires and use 5th gear in the interstate at speeds of 65-75 mph.

Off road benefits would come from the axle gearing but you can gain alot more by doing a 4:1 T-case reduction. The only bad part about that is that it will not reduce you high range, so it will not help on the road.

Zig
Title: Re: Gearing & Diffs, after bigger tyres
Post by: DaddyDave on April 07, 2004, 11:47:10 AM
wait for bobzooki to come back from moab to tell you just how much he likes the calmini t-case gears.  He was raving on them here and on pirate
Title: Re: Gearing & Diffs, after bigger tyres
Post by: idaholwb on April 07, 2004, 05:06:18 PM
 Personnally, I think you should cheat and go through www.ottindustries.com and use their kicker3 that mates the kick/vitara transfer case with the sammy transfer case, you get many benefits and gear selections and gearing correction in high range of 14%....the sammy case has a 1.4:1 reduction in high, the kick is 1:1 in high. Your overall low range ends up being about 4.104:1 in compound low, and is cheaper than doing the Calmini 4.24:1 gears.
Just a thought. ;D
Title: Re: Gearing & Diffs, after bigger tyres
Post by: cj on April 08, 2004, 12:04:30 AM
14% or 40% change to high ratio?  ;)I looked at this option but I don't want to run larger than 32's and figured it was too much even though it is cheaper so I'm going 5.83's and crawlers.
Title: Re: Gearing & Diffs, after bigger tyres
Post by: idaholwb on April 08, 2004, 06:53:20 AM
 Look at it this way. A sammy with that case and 5.12s can run as small as 31s with no ill effects. I think the extra reduction will help in the long run.
Title: Re: Gearing & Diffs, after bigger tyres
Post by: mtntoy on April 08, 2004, 07:32:49 AM
4.16 transfer gears will reduce your hi ratio gearing by about 12%.  Guess what the difference between stock tires and 235s are?  12%!!  You will return to stock ratio on the road, and have lower gears off road.  That is a big reason why transfer gears are so popular, they reduce low ratio gears more than hi ratio gears.  R|removethispart|@P gears reduce both by the same ratio.
Title: Re: Gearing & Diffs, after bigger tyres
Post by: NY_SIDEKICKER on April 08, 2004, 12:54:00 PM
Quote
Personnally, I think you should cheat and go through www.ottindustries.com and use their kicker3 that mates the kick/vitara transfer case with the sammy transfer case, you get many benefits and gear selections and gearing correction in high range of 14%....the sammy case has a 1.4:1 reduction in high, the kick is 1:1 in high. Your overall low range ends up being about 4.104:1 in compound low, and is cheaper than doing the Calmini 4.24:1 gears.
Just a thought. ;D

WHAT WAS THE COST OF THIS SET UP  ???  AND THEY ALSO PUT IN THE CALMINI ROCK CRAWLER T - CASE GEARS ...IS THIS A NECESSARY EXPENSE  ???  SPEAK SLOWLY I'M MECHANICLY CHALLENGED  ;D MATTY D.  8)
Title: Re: Gearing & Diffs, after bigger tyres
Post by: Rhinoman on April 09, 2004, 10:27:21 AM
I think 5:83s on 30" tyres should be just about perfect. Personally I think the Vit/Track/Kick is overgeared in stock form. Having driven mine once with 25.5" tyres on it I know that it really flies along on lowered gearing (of course the speedo reads a little high too). That is of course a UK opinion, I think in the US you are used to big low revving engines and would probably find it a bit buzzy, no offence meant. I should also point out that mine is an 8V so the 20% extra power of the 16V probably means that the higher gearing suits it more.