Ford Fiesta ST
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#21885 - 08/10/05 09:36 AM cosworth wheels
MACMAN Offline
Fiesta Fan

Registered: 25/08/05
Posts: 150
Loc: Reigate, Surrey
does anyone know if a set of 17" cossy wheels would fit my Fiesta i had some on my esco GTI a few years back! will they fit? cos they will look mega cool!!
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#21886 - 08/10/05 10:21 AM Re: cosworth wheels [Re: MACMAN]
Chris Offline
Fiesta Nutter

Registered: 21/03/05
Posts: 3092
Loc: Isle of Wight
Got any pics of them?
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#21887 - 08/10/05 12:00 PM Re: cosworth wheels [Re: Chris]
MACMAN Offline
Fiesta Fan

Registered: 25/08/05
Posts: 150
Loc: Reigate, Surrey
they are so cool!


Attachments
19935-cosworth%20alloy.jpg (60 downloads)

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#21888 - 08/10/05 12:24 PM Re: cosworth wheels [Re: MACMAN]
MACMAN Offline
Fiesta Fan

Registered: 25/08/05
Posts: 150
Loc: Reigate, Surrey
yeah this is a better pic!

i think they would look cool
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#21889 - 10/10/05 10:31 AM Re: cosworth wheels [Re: MACMAN]
Parksey Offline
Fiesta Nutter

Registered: 23/02/05
Posts: 1061
Loc: Winchester
What's the offset and bolt arrangement on the Cossie wheels?
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#21890 - 10/10/05 10:40 AM Re: cosworth wheels [Re: Parksey]
MACMAN Offline
Fiesta Fan

Registered: 25/08/05
Posts: 150
Loc: Reigate, Surrey
well this is as much detail as the website offers
Alloy Wheel- Escort Cosworth 8JX16X25

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#21891 - 10/10/05 10:42 AM Re: cosworth wheels [Re: MACMAN]
Raffe Offline
Fiesta Fan

Registered: 11/09/05
Posts: 101
Yup Escort Cosworth wheel is 16" x 8"..not sure on the PCD or offset though and they are critical.

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#21892 - 10/10/05 10:57 AM Re: cosworth wheels [Re: Raffe]
Parksey Offline
Fiesta Nutter

Registered: 23/02/05
Posts: 1061
Loc: Winchester
Oh so you don't own the wheels yourself MACMAN? The offset is normally printed somewhere on the rim? Best bet would be to ask the seller what the offset is.
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#21893 - 10/10/05 10:58 AM Re: cosworth wheels [Re: Parksey]
Parksey Offline
Fiesta Nutter

Registered: 23/02/05
Posts: 1061
Loc: Winchester
Also, as Raffe has said, it seems to be a 16" wheel and not a 17" so you'd need to get new tyres as well.
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#21894 - 10/10/05 11:05 AM Re: cosworth wheels [Re: Parksey]
MACMAN Offline
Fiesta Fan

Registered: 25/08/05
Posts: 150
Loc: Reigate, Surrey
yeah im gona call them first just to make sure!

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#21895 - 10/10/05 11:09 AM Re: cosworth wheels [Re: Parksey]
st_owner100 Offline
Fiesta Mad

Registered: 01/07/05
Posts: 296
Loc: Essex & Hampshire
I've seen cossie wheels on a mk6 fiesta, and they look strange to say the least. give it a go though, I'd like to see it on an ST. Mixing old school with new school. 'skool', sorry

I think that little picture on this thread is of the mk1 mondeo cossie look wheel.

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#21896 - 10/10/05 11:09 AM Re: cosworth wheels [Re: MACMAN]
Raffe Offline
Fiesta Fan

Registered: 11/09/05
Posts: 101
this may be of some help after a quick search on Google..

Quote:

Original tires for the Escort RS Cosworth is Pirelli P-Zero in dimension 225/45/16 so the rolling circumference of the new tires must be within 5% of that tire. Then: what is the rolling circumference of the Pirelli P-Zero 225/45/16 ? Either use my formula: here, to calculate it yourself, or go to Tirecalc to get the circumference the easy way. You did get 1913mm didn't you ? That's correct: so the maximum rolling circumference we would want is 1913mm x 1,05 = 2008,65mm. Then when you find a tire in a dimension you think might work just calculate the circumference and see if it's inside the 5 percents. Or go to my tirecalculations to get an Excel-file that I have made that shows "all" tirecombinations for the Escort RS Cosworth, or a screenshot of the same file.

For the width of the tire I think 245mm is the most you can get onto an Escort RS Cosworth without modifications (maybe 255 if you run a narrow wheel, but there's no point in doing that as the tire will be too wide for the wheel), and then you would have to choose wheels with less offset than the original wheels witch have an offset of 25mm (ET25). Or else the tires won't clear the suspension. But don't change the offset more than you need to, because large changes will change the steering characteristics of the car. Up to 5mm might be ok but standard is best.




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#21897 - 10/10/05 12:00 PM Re: cosworth wheels [Re: Raffe]
MACMAN Offline
Fiesta Fan

Registered: 25/08/05
Posts: 150
Loc: Reigate, Surrey
ah ha cheers raffe this should help allot

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#21898 - 10/10/05 12:19 PM Re: cosworth wheels [Re: MACMAN]
Raffe Offline
Fiesta Fan

Registered: 11/09/05
Posts: 101
I am sure the final figure of the PCD is 4 x 108 but I am not 100% on that, sorry mate.

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#21899 - 10/10/05 12:47 PM Re: cosworth wheels [Re: Raffe]
MACMAN Offline
Fiesta Fan

Registered: 25/08/05
Posts: 150
Loc: Reigate, Surrey
cheers thanks for the info. but if anyone has any pics of how it may look with cossy wheels post them up it would be much aprerciated

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