Slower as in initial take-off speed as you now have more rolling
resistance to overcome.
Height and Width make a difference but mainly width. A wide tire (more
surface area) is also more susceptible to hydro-planing than a thinner
tire (less surface area). But that also depends on the type of tread
pattern.
I'm well aware of the overall tire height though...taller tire = slower
speedo / shorter tire = faster speedo.
Here's a spreadsheet to figure out the tire height differences:
http://www.speedtweaks.net/PDA/Driveline.xls
- Bernd
-----Original Message-----
From: owner-dakota-truck@BUFFNET.NET
[mailto:owner-dakota-truck@BUFFNET.NET] On Behalf Of KenCo
Sent: Thursday, February 21, 2002 10:31 AM
To: dakota-truck@BUFFNET.NET
Subject: Re: DML: R/T wheels on a 97' Dak Sport
"Bernd D. Ratsch" wrote:
>
> To a point....yes. It also makes you slower with wider tires though.
>
> - Bernd
>
huh?
if tire height remains the same then width only affects traction.
rolling resistance "could" be affected if you have a 4cyl in a 3/4 or 1
ton.
the "circumfrence",if drastic, can/will change power curve and
speed.
the 275/60/15 changed to 275/60/17 will give more
top speed and slightly less power off start.
have a friendly cop clock you w/ stock tires and you driving 35 MPH,
then change to the taller tires, clock again at same 35 MPH and his
radar will now read from around 38-45 MPH depending on size diff. in the
new tires.
HTH :)
p.s.
any good tire/speed shop will have the speedo. counter so a proper
replacement gear or adaptor can readjust speedo. to read correctly and
avoid tickets ;).
> -----Original Message-----
> From: owner-dakota-truck@BUFFNET.NET
> [mailto:owner-dakota-truck@BUFFNET.NET] On Behalf Of Jayson Woodruff
> Sent: Thursday, February 21, 2002 1:48 AM
> To: dakota-truck-moderator@bent.twistedbits.net
> Subject: Re: DML: R/T wheels on a 97' Dak Sport
>
> IMHO. Wider is better.
>
> Jay W
>
> OffRoad322@aol.com wrote:
>
> > I currently have BFG Radial T/A's at 275/60/15.
> > I was thinking about getting the Toyo Proxes S/T in either 255/60/17
> > or 275/60/17. Which would look better on my truck?
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