Rebuilding my suspension to handle Canyon driving
#21
02-24-2017, 12:28 PM
Join Date: Feb 2014
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I find it very odd that your car has the earlier XJ40 suspension and no glovebox! Maybe the SRS airbag was also introduced in 93MY?? (although I thought Don's 93 has a glovebox?)
Oh and another difference I remembered - 13 screws hold down the cam cover on a 94 - also oil filler cap is mounted on the cam cover.
Oh and another difference I remembered - 13 screws hold down the cam cover on a 94 - also oil filler cap is mounted on the cam cover.
Yes, our '93 has a glove box and no passenger airbag. This is not the first example we've seen of certain transitional features not lining up with Jaguar's official VIN breaks. I think if Jaguar had some of the older components left they used them up as they were transitioning to newer components, resulting in some cars with both new and old features. Brewtech's car definitely appears to be transitional.
Cheers,
Don
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93SB (02-25-2017)
#23
02-25-2017, 10:45 AM
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You might check the X300 forum here and at the Jag-Lovers forum - I think this has been discussed. You might want to consider going to a 235/55R16 in order to keep the rolling circumference closer to stock so your speedo isn't off too much, unless you're really just looking for lower profile sidewalls. What I can't recall is whether this might lead to any rubbing in the front wheel wells. I'm sure some X300 owners have experimented with this since their stock wheels were 16s.
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93SB (02-25-2017)
#25
02-25-2017, 03:10 PM
Veteran Member
Tire rack (no affil) had a special on Kumho Ecxstas 225/60 R16 98W's a little while back, maybe still do?
I think they had them on for about $375 for 4, pretty good deal, nice quiet tire, good life, not a sticky as the Pirellis but hey way cheaper and a pretty good all-rounder (plus the right size/load/speed ratios for our cars).
I think they had them on for about $375 for 4, pretty good deal, nice quiet tire, good life, not a sticky as the Pirellis but hey way cheaper and a pretty good all-rounder (plus the right size/load/speed ratios for our cars).
#26
02-28-2017, 11:08 AM
#27
03-01-2017, 12:40 PM
#28
03-01-2017, 06:31 PM
You can fit 225 55 16 tyres, but the speedo will marginally fast. Jaguar fitted this size of tyres to their sportier version in the UK on 8J wheels - the UK XJ12 and XJR both used 225/55 16 tyres, so Jaguar regarded the speedo inaccuracy as acceptable!
I believe some of the 225/60 16 tyres can rub at full lock. The section size is nominal. Tyres in the 225 size made by different manufacturers - and even between models of tyre made by the same manufacturer - are not all the same width, indeed, some can be quite oversized. Also, the width of the rim affects the width of the tyre's section, so a 225 tyre on an 8J rim will be slightly wider than the same tyre on a 7J rim.
I think this is why people are finding their 225/60 16 tyres can rub whe the same sized tyer did not in the past. The new tyre may be marked as the same size on the sidewall, but in reality the physical tyre is actually wider. Some tyres, particularly the higher performance summer tyres, can have a much wider tread area and a considerably less tapered section. An example of this is shown by the much wider tread area on the Pirellli P6000 when compared with the Pirelli P4000. The tread must be half an inch wider on the P6000 - and the shoulders of the tyre are much less tapered than the P4000. At full lock, the more tapered tyre cuts away from the wheel well/liner, whereas the tyre with the wider tread can foul the bodywork, even though both have the same size written on the sidewall.
To get round this problem I sought out a tyre that has as narrow a tread and as tapered a section as possible - and have no rubbing issues with a 225/60 16 tyre, even though I have 8Jx16" wheels on my car. Most manufacturers give an actual section width in their data sheets - the difference is between tyres of the same 'size' is remarkable.
I believe some of the 225/60 16 tyres can rub at full lock. The section size is nominal. Tyres in the 225 size made by different manufacturers - and even between models of tyre made by the same manufacturer - are not all the same width, indeed, some can be quite oversized. Also, the width of the rim affects the width of the tyre's section, so a 225 tyre on an 8J rim will be slightly wider than the same tyre on a 7J rim.
I think this is why people are finding their 225/60 16 tyres can rub whe the same sized tyer did not in the past. The new tyre may be marked as the same size on the sidewall, but in reality the physical tyre is actually wider. Some tyres, particularly the higher performance summer tyres, can have a much wider tread area and a considerably less tapered section. An example of this is shown by the much wider tread area on the Pirellli P6000 when compared with the Pirelli P4000. The tread must be half an inch wider on the P6000 - and the shoulders of the tyre are much less tapered than the P4000. At full lock, the more tapered tyre cuts away from the wheel well/liner, whereas the tyre with the wider tread can foul the bodywork, even though both have the same size written on the sidewall.
To get round this problem I sought out a tyre that has as narrow a tread and as tapered a section as possible - and have no rubbing issues with a 225/60 16 tyre, even though I have 8Jx16" wheels on my car. Most manufacturers give an actual section width in their data sheets - the difference is between tyres of the same 'size' is remarkable.
Last edited by db in uk; 03-01-2017 at 06:36 PM. Reason: Mangled it a bit!
#29
03-02-2017, 10:12 AM
You can fit 225 55 16 tyres, but the speedo will marginally fast. Jaguar fitted this size of tyres to their sportier version in the UK on 8J wheels - the UK XJ12 and XJR both used 225/55 16 tyres, so Jaguar regarded the speedo inaccuracy as acceptable!
I believe some of the 225/60 16 tyres can rub at full lock. The section size is nominal. Tyres in the 225 size made by different manufacturers - and even between models of tyre made by the same manufacturer - are not all the same width, indeed, some can be quite oversized. Also, the width of the rim affects the width of the tyre's section, so a 225 tyre on an 8J rim will be slightly wider than the same tyre on a 7J rim.
I think this is why people are finding their 225/60 16 tyres can rub whe the same sized tyer did not in the past. The new tyre may be marked as the same size on the sidewall, but in reality the physical tyre is actually wider. Some tyres, particularly the higher performance summer tyres, can have a much wider tread area and a considerably less tapered section. An example of this is shown by the much wider tread area on the Pirellli P6000 when compared with the Pirelli P4000. The tread must be half an inch wider on the P6000 - and the shoulders of the tyre are much less tapered than the P4000. At full lock, the more tapered tyre cuts away from the wheel well/liner, whereas the tyre with the wider tread can foul the bodywork, even though both have the same size written on the sidewall.
To get round this problem I sought out a tyre that has as narrow a tread and as tapered a section as possible - and have no rubbing issues with a 225/60 16 tyre, even though I have 8Jx16" wheels on my car. Most manufacturers give an actual section width in their data sheets - the difference is between tyres of the same 'size' is remarkable.
I believe some of the 225/60 16 tyres can rub at full lock. The section size is nominal. Tyres in the 225 size made by different manufacturers - and even between models of tyre made by the same manufacturer - are not all the same width, indeed, some can be quite oversized. Also, the width of the rim affects the width of the tyre's section, so a 225 tyre on an 8J rim will be slightly wider than the same tyre on a 7J rim.
I think this is why people are finding their 225/60 16 tyres can rub whe the same sized tyer did not in the past. The new tyre may be marked as the same size on the sidewall, but in reality the physical tyre is actually wider. Some tyres, particularly the higher performance summer tyres, can have a much wider tread area and a considerably less tapered section. An example of this is shown by the much wider tread area on the Pirellli P6000 when compared with the Pirelli P4000. The tread must be half an inch wider on the P6000 - and the shoulders of the tyre are much less tapered than the P4000. At full lock, the more tapered tyre cuts away from the wheel well/liner, whereas the tyre with the wider tread can foul the bodywork, even though both have the same size written on the sidewall.
To get round this problem I sought out a tyre that has as narrow a tread and as tapered a section as possible - and have no rubbing issues with a 225/60 16 tyre, even though I have 8Jx16" wheels on my car. Most manufacturers give an actual section width in their data sheets - the difference is between tyres of the same 'size' is remarkable.
