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Changing Alloys...will These Fit?


WillFrith
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I was thinking on getting some 18 inch Focus ST wheels for my estate to modify it a little (no other reason) but I was wondering will it fit under the arch as I know it will fit on the hub as its the correct stud pattern. If it helps I am currently running on Zetec alloys fitted by a PO.

Many thanks.

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Was thinking on similar age model of Focus, ideally MK2 if that helps.

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I was thinking on getting some 18 inch Focus ST wheels for my estate to modify it a little (no other reason) but I was wondering will it fit under the arch as I know it will fit on the hub as its the correct stud pattern. If it helps I am currently running on Zetec alloys fitted by a PO.

Many thanks.

Yes they will fit no problem, you could even lower the car afterwards using ford approved 30mm lowering springs will bring the ride height around 15mm lower than it currently sits before fitting the 18's

However your acceleration on 18's will be slower due to the additional unsprung mass

I.e.

Bigger wheels on the hubs require more power to turn,

So your 0-60 will be slower

However handling, grip and stability are all vastly improved.

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Perfect. Fantastic advice! I'll probally leave the springs standard but may lower it in the future ;). Yeah I knew about the slower acceleration but the handling has been slightly lacking so hopefully this should sort it. Top man!

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Is this: http://www.ebay.co.uk/itm/171024728090?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

A reasonable price for the conditon of the wheels? Seems a bit steep to me, though having never bought alloys bigger than 10 inch (for the Mini) I have no idea!

Edited by WillFrith
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Had another thought just. Will the speedo be incorrect due to the greater rolling diameter?

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Is this: http://www.ebay.co.uk/itm/171024728090?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

A reasonable price for the conditon of the wheels? Seems a bit steep to me, though having never bought alloys bigger than 10 inch (for the Mini) I have no idea!

Had another thought just. Will the speedo be incorrect due to the greater rolling diameter?

Rolling 18's your speedo will be spot on correct,

Rolling 16's your speedo is 5kmh under the readout speed,

Second hand st wheels can fetch as much as 600pounds,

They cost 270pounds per rim from ford excluding centre cap and tyre.

used to be a member on here who built a focus eSTate looked great and one of a kind,

Shame we don't hear from him atall now user name was big-daddy-cane

DSC00278-4.jpg

DSC00277-2.jpg

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He did have a beauty of a motor! hopefully he will be back soon!

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Thats awesome!! Hopefully I will be able to find some cheapish (£200 mark) and always thought it read 33 when doing 30! Many thanks gents!

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  • 3 weeks later...

If you get the correct sized tyre then your speedo will remain accurate.

I.E. 16" alloy + 2" tyre sidewall = 18" overall, 17" alloy + 1" tyre sidewall = 18" overall. (not accurate sizes but you get my drift)

Best using a site like this to check

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I've got 19's on mine and i have no rubbing issues - my wheels came off a Laguna with incorrect ET and its still fine!

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  • 2 years later...

must be invisible poster :rolleyes:

he's started a new thread of his own.

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  • 3 years later...
On 4/15/2013 at 10:38 PM, Lenny said:

However your acceleration on 18's will be slower due to the additional unsprung mass

I.e.

Bigger wheels on the hubs require more power to turn,

So your 0-60 will be slower

However handling, grip and stability are all vastly improved.

I understand that but that'd be fine with the extra torque a diesel chucks out though, wouldn't it? I'm not an idiot but can often get unwanted wheelspin especially when it's wet so the larger wheels may help 

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Get better tyres.... 

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2 hours ago, focus-dave said:

I understand that but that'd be fine with the extra torque a diesel chucks out though, wouldn't it? I'm not an idiot but can often get unwanted wheelspin especially when it's wet so the larger wheels may help 

The larger wheels would definitely reduce the wheel spin if not when fitted then definitely after you've replaced a set of the 225/35/18 tyres

Ive had Genuine 18" ST alloys fitted on my remapped diesel with 300Nm Torque Torque and I've gone back to 16" due to the findings I've documented above aswell as having to change all four tyres every nine to eleven months at a cost of 105 pounds per corner and I standby the truth of experience, I think Eibach lowered springs which were a ford option sitting on 17" alloys would be the best option for both style and performance.

20190124_181923.thumb.jpg.fc2b81171abca2d02380d3943b67c343.jpg

20190124_181942.thumb.jpg.cf8cc4dd4e7fea5a41beeee368b673a0.jpg

IMG_20130403_082235_zps536ba4ac.thumb.jpg.d35af928f654c646a30c5a22aebc2fe3.jpg

IMG_20130403_083609_zps3f4a4338.thumb.jpg.0b9193809ce3fe797061c850ce4ed27a.jpg

IMG_20130403_083647_zpsd64a54b7.thumb.jpg.52ed37bd6a92e11a9fcffc546a259d6b.jpg

IMG_20130403_083714_zpsfa43e8dc.thumb.jpg.a15ae00c2e6ac0cd69f85f988c9b1b4c.jpg

IMG_20130404_114546_zpsa931b5ba.thumb.jpg.79dbf21bf2435925db2275bd7c88bd50.jpg

20190124_182603.thumb.jpg.92f6ee6a08d1182861ffb54b6dc95483.jpg

Full build here: 

 

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Why were you running 35's lenny

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1 hour ago, martyntdci said:

Why were you running 35's lenny

Extra 5mm of comfort over the 30mm variant 

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Was just wondering as mine are 40's that's all. 

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4 minutes ago, martyntdci said:

Was just wondering as mine are 40's that's all. 

Ahh i Thought I was missing a joke or somthing  😂

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Nope not this time. But the extra cushion is always good 😉

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13 minutes ago, martyntdci said:

Nope not this time. But the extra cushion is always good 😉

More Preparation less perspiration 😅

Here's some images might be relevant to others to know what there looking for when changing sizeplussizegraphic_2_L_zpsitbltiiv.thumb.jpg.76f2b03f8baebb8123cb2dd1c713ff25.jpg

AAEAAQAAAAAAAALWAAAAJGJhMjZiMzNjLTE4MTUtNDhmYS05ZmMzLTk1NmFlYWU3MjY2MA_zpstyl1pnma.thumb.jpg.17fce02b7ca9613729243c5f56bf8596.jpg

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8 hours ago, Lenny said:

Extra 5mm of comfort over the 30mm variant 

actually its 5%! the tyre sidewall is measured by % of the width of the tyre....why do i know this? its cos I'm sad 😭....not realy, I work for a Govt dept who do work on tyres/cars

Lenny I did like the little growing story above, very ingenious 😎

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