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6J possible on spitfire arches?


Tom2000

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low profile tyres on 13 inch rims will look a little lost in the wheel arches, and will make your speedo over-read.

Why go for super-wide rims?  they are more likely to aqua-plane in heavy rain.  Also, with the camber changes that the rear wheels go through on a spit/herald chassis, you will find that you spend a lot of time running on the corners of the tyres rather than the flat tread.

wider rims work on modern cars because the suspension design is usually much more sophisticated and the wheels do not change camber with load or bumps.  Also, modern cars are generally much heavier, so the wider tyres are able to push more water out of the way.

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Tom2000 wrote:
OK well 5.5's it is then :) although I do have uprated suspension all round.


Well, unless you've changed your rear suspension for a rotoflex conversion with lower wishbone, your "uprated" suspension, like mine, will still change the rear wheel camber wildly during hard cornering, bumps, and when carrying a heavy load.

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and are probably the best all-round solution. Mind you some reckon the std 155/13 are the very best, but then again they are a bit skinny. And I'm a tart so rub 185/55/15! (on 6j's) and 205/45/15 at the back, but they are a bit too wide really and catch sometimes.

Clive

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I've got 6J  R14  Minilites on a SPit 1500 with 175/65 tyres. I didn't need to recalibrate the speedo either.

Although my front wheels do rub slightly on full lock, but I've also got slightly lowered suspesion.

Handling is excellent though.



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15's just bolt on. MGF ones, cheap as chips. 185/55 work well. BUT there is the issue of camber change, so I will be changing mine to 175/65 14 for trackdays (on maestro steel wheels) and 175/70 13 for everyday use. Trouble is 13" tyres are getting a bit harder to get hold of in specific brands etc, though the 175/70 are still easy at he moment.

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