Tyre Width And Grip
Discussion
I am aware that by increasing tyre width from say 195 to 225 will change the shape of the contact patch on the road.
But is there any quick and easy formula to work out what it will actually do regarding grip levels - both whilst cornering and on acceleration.
(Assuming the same type of tyre)
IIRC it won't improve cornering speeds but will improve grip upon acceleration thus reducing wheelspin but by how much ?
But is there any quick and easy formula to work out what it will actually do regarding grip levels - both whilst cornering and on acceleration.
(Assuming the same type of tyre)
IIRC it won't improve cornering speeds but will improve grip upon acceleration thus reducing wheelspin but by how much ?
Yes 195 front and 225 rear was what I was thinking really (for no particular reason other than it seemed right and TVR's with similar power run 225's yet my car tramlines terribly with more than 195's on the front)
Saaby93 - I read that which is pretty much what I remembered except I thought that with the wider contact patch (ie involving more road surface) meant better grip for acceleration / braking which he doesn't seem to cover.
Also he mentions wider tyres have a better slip angle due to the lower profile but mine will effectively have the same profile (in height albeit a lower percentage, say 225/40/15) as I want to keep the wheel size and rolling radius similar.
Saaby93 - I read that which is pretty much what I remembered except I thought that with the wider contact patch (ie involving more road surface) meant better grip for acceleration / braking which he doesn't seem to cover.
Also he mentions wider tyres have a better slip angle due to the lower profile but mine will effectively have the same profile (in height albeit a lower percentage, say 225/40/15) as I want to keep the wheel size and rolling radius similar.
Having read all this...
The obvious question is:
Why do Supercars run 345's etc when they aren't that heavy, is it just fashion ?
And surely drag racers would opt for the best size available as every 100th counts and they tend to be pretty wide !
The obvious question is:
Why do Supercars run 345's etc when they aren't that heavy, is it just fashion ?
And surely drag racers would opt for the best size available as every 100th counts and they tend to be pretty wide !
Edited by redgriff500 on Sunday 1st November 14:08
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