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#1
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tyre sizes for cup alloys
what size tyres you guys running with 17" alloys?
ive got cup 3s going a 1302 cab,alloys just arrived cheers |
#2
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I'm running 205/50R17 on my 1303 cab, but I think most people run 205/40. I wanted longer overall gearing and a bit more comfort for use 4 up, it's the standard size used on the front of a lot of Porsches.. The other bonus for me is that it will also match the Subaru rolling diameter for the instrument cluster I'm using.
Rich
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http://www.ricola.co.uk |
#3
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I am running 205/40/17 on my 7" and 255/40/17 on my 9" cup II's.
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#4
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205/40 on the 7's, and 234/45 (A little euro-stretch) on the 9's.
On my Super with 17x7's (Tune rims, not P-car) all around, I'm running 205/50's. Lanner |
#5
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thanks guys
looks like the 205/40s all round although these are millie miglias and are 17 x 7.5 so will the 205s still be ok being 1/2" wider wheel also i have 23et for rear (was told these bolt on) and 52et for front(need a 10mm spacer) would this be correct? thanks |
#6
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215/40 and 215/45 on 7.5et52mm under Day Mouldings. Probably the absolute limit, the front is tight with a wheel alignment for cornering such as 2deg -ve camber. Inner sidewall is ~4mm from a 80mm coil, maybe less at the wing.
The rear (also et52mm) is just as tight when the wheel is close to verticle, about 0.75deg -ve. 944 steel arms rear and 951 stubs at the front. No spacers or apapters. A wheel this size with et23mm on a stock rear drum will be just as tight, the 205/40 'should' make it easier. BEWARE! Tyre shoulder sizes are not all the same shape and size for a given tyre size, It depends on the make, more on the original application. I went from 225/45 F1's on the rear as I had to run ~1.5deg -ve camber, I borrowed a pair of 215/45 Pirelli's (P-zero, I think..) clearance was perfect, So I bought my 215/40 F1's and it was tight again ~6mm difference at the wheel arch. Matt
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'79 Karmann, Nrburgring or bust... |
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