"Dan Jones" <amishpimp93@hotmail.com> wrote:
: Quick Question. I have 4.10 gears and my tires were 235/70/15. Speedo was
: off by like.. 5-8mph cruzin down the highway. I just put on 30/9.5/15
: tires. Will this adjust my speedo to go faster or get me back to my
: original speed reading? I was going down the highway and it said 70mph but
: only at about 2000rpm, with the old tires at that speed, i was at about
: 2300. thanks
That will move your speedometer closer to being correct. At 60mph actual
speed, the speedometer should now be reading about 4mph slower than before
the tire change. Still not quite correct probably, but its closer. Feel
free to play with the Tire Calculator, that might give you some feel
for the change: http://www.dakota-truck.net/tirecalc/
The calculator currently only accepts the metric style measurements, but
you can just plug in 241/79 R15 for your 30x9.5s, which should be pretty
close.
---Jon-
.---- Jon Steiger ------- jon@dakota-truck.net or jon@jonsteiger.com -----. | Affiliations: AOPA, DoD, EAA, NMA, NRA, SPA, USUA; Rec & UL Pilot - SEL | | '92 Ram 150 4x4 V8, '96 Dakota V8, '96 Intruder 1400, '96 FireFly 447 | `------------------------------------------ http://www.jonsteiger.com ----'
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