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post #1 of (permalink) Old 12-30-2000, 10:34 PM
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Tire size?

What is the largest tire size I can run without losing significant power?

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post #2 of (permalink) Old 12-30-2000, 11:49 PM
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Re: Tire size?

hey sar1,need more info.what are you driving? engine size? gear ratio?,thanks RR

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post #3 of (permalink) Old 12-31-2000, 01:22 AM
 
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Re: Tire size?

His truck is stock, except for a shackle lift. He want to put the biggest tire on it that will fit without needing to regear the axles or T-case, and still have acceptable performance.
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post #4 of (permalink) Old 12-31-2000, 02:46 AM
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Re: Tire size?

I would not go over a 29 and30/9.50 would be pushing it.
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post #5 of (permalink) Old 12-31-2000, 10:56 AM
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Re: Tire size?

when I put 30" tires on, it really killed my power even with the SJ410 t-case I put in.

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post #6 of (permalink) Old 12-31-2000, 11:03 AM
 
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Re: Tire size?

in your config. i'd not go taller than 235/70 ...

you will loose more overall performance going taller than you will win with the marginal effect

later
alfred

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post #7 of (permalink) Old 12-31-2000, 11:58 AM
 
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Re: Tire size?

Just put a set of 7.00-15 bias ply mudders on my 92', they measure 29" tall. Still have decent hwy performance, in a strong head wind I can still run 60 in 5th, toe nails in the radiator though!!!!. In normall conditions on the hwy it can run 65mph easy and comfortably. Throws the speedo off significantly 60 mph now = 67 mph. Offroad mannerism's vastly improved over the stock tires.

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post #8 of (permalink) Old 12-31-2000, 12:34 PM
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Re: Tire size?

I'm running 31X10.50 15' on mine (along with the other modifications) and a Stock Tranny/transfer. The problems associated with this are;
1. 5th gear is almost useless. The only time I can uses it is straight, flat, long runs or down hill. I plan to have gearing work done soon so I haven't worried about it to much

2. Speedo is way off. At 30mph on the gauge Iím running 42 by the GPS

3. Fastest I can go is about 63 (GPS) But it wasn't made to be a hi-way runner anyway.

4. They sling alot of mud,Oh but, wait, Is that a bad thing?

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post #9 of (permalink) Old 12-31-2000, 02:44 PM
 
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Re: Tire size?

Check out this shareware. You can find the % change with different tire size combinations. The stock size is 205/70x15 or 26.3". I believe when going to a larger size than stock tire, the % change is directly proportional to % of power loss. Some of the enginer/gearheads on the list could answer this better.

http://www.off-road.com/suzuki/tech/tiresize.htm

-Farther
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post #10 of (permalink) Old 12-31-2000, 05:18 PM
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Re: Tire size?

i'm running 225's on mine and can tell a loss in power but i live in the mtns if you are on the coast or in flat lands it might not bother you as much

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