Re: Need Help once a gain in the tire ilse

From: Bob Tom (tigers@bserv.com)
Date: Wed Feb 03 1999 - 10:21:12 EST


Jason

My Dakota has 3.55 and came with stock P215/75R15 tires.
Using the DML Wheel and Tire calculator, the P215/75R15
has approximately a section width of 8.46", a sidewall height
of 6.35", overall height of 27.7" and circumference of 87.01".

At the moment, I am planning on running BFG drag radials,
either P235/60R15 or P275/60R15, on 15x8 rims.

The P275/60R15 has a section width of 10.83", a sidewall
height of 6.5", overall height of 27.99" and circumference of
87.94". This would give me an effective gear ratio of 3:51.
TireRack's price is $140 each.

The P235/60R15 has a section width of 9.25", a sidewall
height of 5.55", overall height of 26.1" and circumference of
82". Effective gear ratio would be 3:77. TireRack's price
is $135 each.

My personal decision will depend a combination of factors:
estimated hp and torque after I have completed my mods, the
traction factor and rear wheel clearance.

One thing, for sure, ... you will need at least 8" rims.

The calculator can be found at:
http://www.cs.fredonia.edu/~stei0302/WWW/DAKOTA/TIRECALC/tirecalc.html

Good luck.
Bob
Burlington, Ontario

'97 CC Sport, 5.2L, 3.55 auto., flame red
  Gibson duals, KN drop-in
  Coloured-keyed grille guard, running boards
      and hard tonneau cover
  Deflectors, grille insert
  AR-211 15x7 rims (4.75" backspace)



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