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post #1 of 5 (permalink) Old 10-11-04, 12:36 AM Thread Starter
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Join Date: Jun 2004
Location: South Australia
Age: 29
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Help

i have an NC, current tyre sizes are 205/65/15 all round, with some aftermarket mags (original spare stil on boot), i want some bigger tyres and im wondering how much bigger/wider i can go legally in SA, i have used
http://www.inf.bme.hu/~zed/onlinetools/tyresize/
and i am after some 17's i think,
Tyre code Diameter Circumference Difference
---------- -------- ------------- ----------
235/45 R17 643 mm 2020 mm -0.65 %
how far will that difference put my speedo out by, will this mean i will be going faster than the speedo is reading or slower, and lastly will these fit onto my car wihout altering anything?


'92 NC Ghia, 302w 123.9kw at the wheels, dead stock. Peacock Green. Lots of woodgrain and velour
Tint, Mags (17x8 ROH RT's 235/45), Sunroof, Alarm/Immobliser, GM-X624 Amp, DEH-P8250 H/U, Alpine 2x6 1/4" rear, 6"splits in doors, 1" tweeters in dash.
"You have the right to remain silent. Anything you say will be misquoted, then used against you."
Quote:
<mrmkII> a tick bit my nuts!!!!

Last edited by FordFan86; 10-11-04 at 12:53 AM. Reason: spelling
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post #2 of 5 (permalink) Old 10-11-04, 04:48 AM
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Re: Help

In S.A you can go 1 inch wider and 1 inch up in diameter over the largest factory wheels available on your model, I'm pretty sure. Were any 16" wheels available on the NC from the factory? If they were then you'd be able to use 17" legally.

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post #3 of 5 (permalink) Old 10-11-04, 06:45 PM Thread Starter
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Re: Help

just read
http://www.geocities.com/falconfacts...eltd/ncdc.html
optional tyres were 16" on series II, and optional tyres where 225/50/16 so it looks as though i will be able to get some 235/45/17's on.
now just to find a pattern i like

'92 NC Ghia, 302w 123.9kw at the wheels, dead stock. Peacock Green. Lots of woodgrain and velour
Tint, Mags (17x8 ROH RT's 235/45), Sunroof, Alarm/Immobliser, GM-X624 Amp, DEH-P8250 H/U, Alpine 2x6 1/4" rear, 6"splits in doors, 1" tweeters in dash.
"You have the right to remain silent. Anything you say will be misquoted, then used against you."
Quote:
<mrmkII> a tick bit my nuts!!!!
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post #4 of 5 (permalink) Old 10-11-04, 06:51 PM
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Re: Help

Quote:
Originally Posted by fairmont1998
In S.A you can go 1 inch wider and 1 inch up in diameter over the largest factory wheels available on your model, I'm pretty sure. Were any 16" wheels available on the NC from the factory? If they were then you'd be able to use 17" legally.
You can actually go 2" larger as long as overall diameter is within a certain amount.. Not sure about width though..

Ben
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post #5 of 5 (permalink) Old 10-11-04, 06:53 PM Thread Starter
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Re: Help

i also need to find a set oh wheels that i like for sale as well as the spare $$$$$, im thinking some 17's off an AU? or BA, something with the blue ford logo in the middle or even some Ghia mags

'92 NC Ghia, 302w 123.9kw at the wheels, dead stock. Peacock Green. Lots of woodgrain and velour
Tint, Mags (17x8 ROH RT's 235/45), Sunroof, Alarm/Immobliser, GM-X624 Amp, DEH-P8250 H/U, Alpine 2x6 1/4" rear, 6"splits in doors, 1" tweeters in dash.
"You have the right to remain silent. Anything you say will be misquoted, then used against you."
Quote:
<mrmkII> a tick bit my nuts!!!!
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