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Technical
What tyres for Porsche Teledials?
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<blockquote data-quote="naskeet" data-source="post: 633591" data-attributes="member: 15903"><p>If the offset is somewhere in the range 35~40 mm, I would probably suggest 195/70 R15C tyres, assuming you're <strong>NOT</strong> using wheel-spacers and the suspension-lowering is very modest!?! Whenever selecting alternative tyre sizes, keep in mind the effect this will have on overall engine gearing and speedometer & odometer calibration, both of which will affect indicated & actual fuel mpg.</p><p></p><p>Assuming you have a factory-standard, 47 or 50 DIN horsepower, 1584 cc engine, the factory-standard gearing ratios, with half-worn 185/80 R14C tyres (or other tyre-size like 195/70 R15 of almost identical external circumference), this will give optimal gearing whereby maximum power is attained at the greatest possible true maximum speed, of an actual 68 mph for the factory-standard low-roof bodyshell. If you substitute tyres of a smaller or larger external circumference, then you may expect the true maximum speed to be reduced.</p></blockquote><p></p>
[QUOTE="naskeet, post: 633591, member: 15903"] If the offset is somewhere in the range 35~40 mm, I would probably suggest 195/70 R15C tyres, assuming you're [B]NOT[/B] using wheel-spacers and the suspension-lowering is very modest!?! Whenever selecting alternative tyre sizes, keep in mind the effect this will have on overall engine gearing and speedometer & odometer calibration, both of which will affect indicated & actual fuel mpg. Assuming you have a factory-standard, 47 or 50 DIN horsepower, 1584 cc engine, the factory-standard gearing ratios, with half-worn 185/80 R14C tyres (or other tyre-size like 195/70 R15 of almost identical external circumference), this will give optimal gearing whereby maximum power is attained at the greatest possible true maximum speed, of an actual 68 mph for the factory-standard low-roof bodyshell. If you substitute tyres of a smaller or larger external circumference, then you may expect the true maximum speed to be reduced. [/QUOTE]
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What tyres for Porsche Teledials?
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