Guest Posted August 11, 2002 Share Posted August 11, 2002 I have an extra set of tires size 215/70/15 that I want to put on a '98 Century, which takes 205/70/15's. I know these are a bit taller, but does anyone know if they will fit? If not, I'll sell them- they are General radials and only have 5,000 miles on them- not sure which Buicks they will fit. Any info appreciated-Thanks-David Link to comment Share on other sites More sharing options...
Guest Shaffer Posted August 11, 2002 Share Posted August 11, 2002 Not sure if they will fit or not, but remember it will throw your speedometer off as well as give your car an inaccurate odometer reading. Link to comment Share on other sites More sharing options...
NTX5467 Posted August 12, 2002 Share Posted August 12, 2002 I don't think there would be any problems putting them under there. The closest clearance item would be the front struts, as I recall.<P>As for the speedometer error, you can go into <A HREF="http://www.tirerack.com" TARGET=_blank>www.tirerack.com</A> and look up a similar General tire to get the "revs/mile" specs for both sizes and then see how fast you'll really be going with the speedometer reads 60mph, for example.<P>I'm not sure what the procedure would be using a different tire size and recalibrating the vehicle's ECM so the speedometer would read correctly. Putting non-stock tire sizes on modern computer controlled vehicles is not what it previously was.<P>Those 215/70-15s would be a great size for a '70s Skylark with factory chrome wheels. The cosmetics would approximate what it would be with the similar 14" factory chrome wheels yet be a 15x7 wheel size.<P>If the "revs/mile" spec for the 215/70-15 size approximates that of the 225/60-16 size that is so common on lots of GM and other brands of cars, then you could use that for the spec to recalibrate the ECM.<P>Just some thoughts . . .<BR>NTX5467 Link to comment Share on other sites More sharing options...
Guest Posted August 12, 2002 Share Posted August 12, 2002 Thanks for the tips! Link to comment Share on other sites More sharing options...
Guest Posted August 13, 2002 Share Posted August 13, 2002 do the math on the speedo error - calculate the 2 wheel/tire diameters from the nominal tire sizes. It's only 2% Link to comment Share on other sites More sharing options...
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