Jaguar World Monthly Forum - new tyres advice

yortonheath Senior Member Offline Nr. Shrewsbury, Shropshire . UK. Posts: 677 shrewsbury Gender:	new tyres advice 21.01.2010 at 22:04:57 Ok, so we all know that pirellis arent the best tyre, BUT! I cant get 225/65/15 s in any other make. Do I use a diff size on the front axle , and if so what size and make? I am guessing that this is a can of worms!
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Brian Senior Member Offline Posts: 353 east anglia Gender:	Re: new tyres advice Reply #1 - 22.01.2010 at 00:05:34 Have you tried Black circles ??
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Alpine Junior Member Offline Posts: 90 Leeds Gender:	Re: new tyres advice Reply #2 - 22.01.2010 at 13:43:08 I'd be reluctant to change the size from original spec, as that can affect insurance cover. You might have to stick with Pirelli......
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JagFab Senior Member Offline Posts: 821 Kent/S.E. London, UK Gender:	Re: new tyres advice Reply #3 - 22.01.2010 at 15:09:18 As far as I'm aware, insurance companies aren't that concerned about size. Speed rating, yes. Size, no.
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XJ40S Senior Member Offline Posts: 1388 Sheffield Gender:	Re: new tyres advice Reply #4 - 26.01.2010 at 12:15:23 I have had 215 70 15s in the past and these have been OK. I will fit them again. I don't have my handbook here but I think they are standard fitment on the same rims for the American market. I once tried 230 60 15 but these just to say touched the wheel arch on some corners. Cheers
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XJ40S

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Re: new tyres advice
Reply #5 - 28.01.2010 at 09:35:20

I have just greed to hve fitted tomorrow 2 Nexen CP641 215 65 15 for my 88 3.6 for £44 +VAT each. This price includes new valve, fitting and balancing.
215 70 15 raises the gearing by 1% compared with the standard 220 65 390 metrics originally fitted to car.
215 56 15 lowrs the gearing by 2% compared with the standard 220 65 390 metrics originally fitted to car. Which suits me because of the roads I drive on, towing and slight loss of torque on LPG.
225 65 15 are same rolling radius as 220 65 390 so % given above apply to your car also.
Try My Tyres and Black circles websites
Cheers

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yortonheath Senior Member Offline Nr. Shrewsbury, Shropshire . UK. Posts: 677 shrewsbury Gender:	Re: new tyres advice Reply #6 - 28.01.2010 at 20:19:49 are these just on one axle, or are you having a matched set. I never used to worry , but with all that performance....
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XJ40S

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Re: new tyres advice
Reply #7 - 29.01.2010 at 12:23:26

Just on the rear axle at this time, but will put same or similar 215 65 on front when time comes.
The slight difference in diameters, which is much less than wear has never given problems with ABS or anything else.
Lot of factors will affect performance far more than 10mm on width.
A person I know has just started job at Pirelli in Carlise as they are hiring staff again after years of lay off. He says it because they have just wone a big contract to supply tyres to Jaguar Land Rover for several years.
Cheers

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yortonheath Senior Member Offline Nr. Shrewsbury, Shropshire . UK. Posts: 677 shrewsbury Gender:	Re: new tyres advice Reply #8 - 03.02.2010 at 22:29:15 Deffo worth a serious consideration. soon to be Mot time, so the usual cost vs is it worth it debate will surface.
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Chris Dixon Full Member Offline Posts: 126 Kent, UK	Re: new tyres advice Reply #9 - 15.02.2010 at 23:23:38 Doesn't it depend on what engine oil you're using?
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XJ40S Senior Member Offline Posts: 1388 Sheffield Gender:	Re: new tyres advice Reply #10 - 16.02.2010 at 12:13:53 It could do - you can get problems with any combination when you a MULTIVALVE power unit contributing to the outcome Cheers
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