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Post by BikeTuna on Jul 28, 2017 19:15:21 GMT
I've gone to 16s, I haven't decided if I like them yet though, the ride is fine, the group is fine and I feel like it handles ok too (though on my tried road so far). Acceleration is down but I'm sure a turbo will sort that...
Anyway, the tyres are stretched, and I hear you should run them over pressure to keep the bed on...
...Like 35psi? 40psi? 50psi?
It takes proper abuse, so needs to stay on there!
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Post by chris71 on Jul 28, 2017 23:02:17 GMT
Having gone to a larger diameter wheel you've instantly geared up thus the slower acceleration but you could get a higher top speed once on full chat if you ever get the opportunity which is unlikely. Stretched tyres look cool(ish) but offer no advantage and they're more likely to collapse under spirited driving. The more PSI you put in the more likely you'll get nasty failure.
Also just take into account that stretched tyres are a M.O.T failure.
Just my opinion
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coop
New Here
Posts: 80 
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Post by coop on Jul 29, 2017 23:19:14 GMT
I have no real answer for your question OP, I just chimed in to say that with regards to the comment above re stretched tyres being an MOT failure, while some garages may be picky, they are in fact not an MOT failure.
If anything, the grey area some testers find themselves in is that the tread must stay within the arch, which is the reason that many opt for 'stretched' tyres, not just to look cool.
Rob.
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Post by nickd on Jul 30, 2017 23:23:01 GMT
It is not the size of the rim, but the overall diameter of the tyre that governs gearing.
Stretch is all relative, putting a 195 on an 8" rim is different to putting a space saver on a 12".
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Post by wannabe on Jul 31, 2017 16:50:49 GMT
I'm sure I've read some posts elsewhere worrying about 'stretch' with a 195 tyre on a 7" rim! lol
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Post by chris71 on Aug 1, 2017 18:23:01 GMT
I have no real answer for your question OP, I just chimed in to say that with regards to the comment above re stretched tyres being an MOT failure, while some garages may be picky, they are in fact not an MOT failure. If anything, the grey area some testers find themselves in is that the tread must stay within the arch, which is the reason that many opt for 'stretched' tyres, not just to look cool. Rob. All tyres have to be fitted within the parameters of the markings on the tyre wall outlined by the manufacturer. These include, inside and outside markings, tyre rotation, given pressures and also tyre width to the given wheel size. If you stretch a tyre to far it will end up with a much smaller contact point with the road, lose the inbuilt flexibility of the tyre then in hand loosing grip. With regard to the tyre and wheel staying within the arch of the car does not apply either. As long as they don't foul the bodywork it all good, but if you fit wheels and tyres that go beyond the body you must have a suitable system in place to cover them in the invent of rain or wet roads to reduce spray These are all points that an M.O.T station will look at. Thanks Chris |
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Post by muckingfuppet on Aug 3, 2017 12:24:33 GMT
I've gone to 16s, I haven't decided if I like them yet though, the ride is fine, the group is fine and I feel like it handles ok too (though on my tried road so far). Acceleration is down but I'm sure a turbo will sort that... Anyway, the tyres are stretched, and I hear you should run them over pressure to keep the bed on... ...Like 35psi? 40psi? 50psi? It takes proper abuse, so needs to stay on there! Going back to the OP I run 15x8" with 195/50 profile tyres. I run at 35 psi, based mainly on evening out tyre wear nicely. Holds nicely and feels good on the road too. |
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Post by nickd on Aug 27, 2017 18:13:19 GMT
I've gone to 16s, I haven't decided if I like them yet though, the ride is fine, the group is fine and I feel like it handles ok too (though on my tried road so far). Acceleration is down but I'm sure a turbo will sort that... Anyway, the tyres are stretched, and I hear you should run them over pressure to keep the bed on... ...Like 35psi? 40psi? 50psi? It takes proper abuse, so needs to stay on there! Going back to the OP I run 15x8" with 195/50 profile tyres. I run at 35 psi, based mainly on evening out tyre wear nicely. Holds nicely and feels good on the road too. You must bounce all over the road! |
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Post by muckingfuppet on Sept 6, 2017 19:04:21 GMT
Going back to the OP I run 15x8" with 195/50 profile tyres. I run at 35 psi, based mainly on evening out tyre wear nicely. Holds nicely and feels good on the road too. You must bounce all over the road! Actually not.. Tyre wear is pretty even across the width, ride is firm but mostly forgiving (attributed to still needing to set the coilovers up properly) but it runs really nicely. For reference, my old GT86 was 36 psi stock. |
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Post by atlex on Sept 6, 2017 22:27:00 GMT
the lame response is, for badly streched/stanced tyres... depends on how much contact patch you want on the road.
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le sigh