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Car Forum / Dodge / Dodge Trucks / September 2005

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Tire Size 245 vs 265 vs 285

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datadontUse - 22 Sep 2005 06:48 GMT
In the archives for this news group and other places I have be able to track
down that I can have a P75/245 R16 <Stock> tires, P75/265 R16 or P75/285 R16
on my stock rims. I have found that it will alter both the shift points of
my MANUAL transmission and alter the accuracy of my speedometer.  The larger
tire will also give me less torque from a dead stop, and will give me
slightly  better mileage. I have a Dodge Ram 1500, 5.2l (318) with a 5 speed
manual. I can EASILY smoke the tires so having less torque is not a issue
either. The problem that I am trying to solve is poor proformance on wet
roads. I live in Las Vegas, NV, and when it rains the baked in oil and junk
on the road give me very poor traction both in starting, and stoping. Of the
3 sizes which will have the least impact on dry (90% of my driving time) but
increase the the grip on the wet roads?  I need new tires anyway, and I am
stuck on what to get.  I know that the brand/tread design/type of tire,
along with 300lbs of weight in the back will help the traction issue probaly
more then the size of the tires. The only down side I can find to wider
tires is more a tendancy to hydroplane, but I can control that with cautious
driving in flooded areas, and more expensive for the larger sizes.  When I
walk into a tire tire store what should I get size wise? Any suggesions are
greatly appreicated, Thanks!

Paul
2001 Dodge Ram 5.2, 2x4 SLT Laramine with 5 speed manual.
I am gonna keep it for a LONG time, unless gas goes over $10.00 per gal.:(

l v d a t a N O S P A M a t c o x d o t n e t (Remove no spam and make it
look normal to reply)
TheSnoMan - 22 Sep 2005 13:52 GMT
> In the archives for this news group and other places I have be able to track
> down that I can have a P75/245 R16 <Stock> tires, P75/265 R16 or P75/285 R16
[quoted text clipped - 22 lines]
> l v d a t a N O S P A M a t c o x d o t n e t (Remove no spam and make it
> look normal to reply)

You want a tire that has a tread that is fairly smooth in design but the
has lots of small blocks and sipes to get the water away from surface.
ALso, in summer when it is hot, it bakes the oil to the surface of the
road and when it first rains, it can be realy greasy. Big tires on a
tall axle ratio does not help traction either because there is more axle
and chassis wind up when you apply power and more tendancy to lift the
right wheel from drive shaft torque (this is why you can spin them
easily at time even when dry) and reduce traction. Believe it or not,
deeper axle gears would improve traction and with OD there will be no
lose of MPG and if you stay with 85 series tires, they have lower
rolling resistance and will help MPG too.

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mac davis - 27 Sep 2005 05:38 GMT
>In the archives for this news group and other places I have be able to track
>down that I can have a P75/245 R16 <Stock> tires, P75/265 R16 or P75/285 R16
[quoted text clipped - 22 lines]
>l v d a t a N O S P A M a t c o x d o t n e t (Remove no spam and make it
>look normal to reply)

IMHO, if you're looking for traction, you'd be better off staying at the stock
tire size height and going with a wider tire with a more aggressive tread..
Ask a few local tire shops (not Walmart, but someone that knows tires) and
they'll set you up for local conditions.. YMMV

mac

Please remove splinters before emailing
Nosey - 27 Sep 2005 07:51 GMT
> IMHO, if you're looking for traction, you'd be better off staying at
> the stock tire size height and going with a wider tire with a more
> aggressive tread.. Ask a few local tire shops (not Walmart, but
> someone that knows tires) and they'll set you up for local
> conditions.. YMMV

265/70/16 would be a good choice. It has an almost identical diameter as the
245/75/16 but is wider.
 
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