Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: rajveer.sandhu on 24 April 2011, 12:44:26

Title: Alloys
Post by: rajveer.sandhu on 24 April 2011, 12:44:26

Hi,
Would the following Alloys and Tyres fit a 3.0v6 Omega: with variable nuts:

Front Wheel Size: 8.5J x 18" H2 (off set 18-35)
Rear Wheel Size: 10.0J x 18" H2 (off set 14-20)
Tyre Sizes: Front & Rear 235/50/R18

Raj

Title: Re: Alloys
Post by: Jimbob on 24 April 2011, 12:56:24

whats the pcd?

Title: Re: Alloys
Post by: dbug on 24 April 2011, 17:12:18

Quote

whats the pcd?

That's a good question Jimbob  :) ;)

Title: Re: Alloys
Post by: Andy B on 24 April 2011, 17:19:28

Quote

whats the pcd?

I suspect incorrect for an Omega hence 'variable nut' (they'll be wobble bolts.) ;)

Title: Re: Alloys
Post by: Stallion on 24 April 2011, 19:20:14

being 8.5j fronts i suspect they would rub with the base of the shocks? :(

Title: Re: Alloys
Post by: rajveer.sandhu on 25 April 2011, 16:52:35

Hi,
I am told the PCD is 5x120.

Would these fit with variable bolts?

Title: Re: Alloys
Post by: MV6Matt on 25 April 2011, 17:01:16

Quote

Hi,
I am told the PCD is 5x120.

Would these fit with variable bolts?

I don't think so given that the Vx is 5x 110.
I think you can use wobbly bolts with +/- 2mm limits, so 120 makes it too big and not very safe
Are they Beemer wheels?

Matthew

Title: Re: Alloys
Post by: MV6Matt on 25 April 2011, 17:03:17

Tyre size would need to be 235/45/18 IIRC

Matthew

Title: Re: Alloys
Post by: jordan681 on 25 April 2011, 17:08:11

for the fronts you can have either 225 - 245 40/45 18 and for the rear you caqn have anything up to 285's without having any rubbing issues.

I have 8.5 x 18 on the front and 10.5 x 18 on the rears, and the tyre sizes I went for were 225/40/18 on the front and 265/35/18 on the rear

Title: Re: Alloys
Post by: rajveer.sandhu on 25 April 2011, 17:08:58

Hi, yes they came off a BMW 3 series.

Title: Re: Alloys
Post by: Jimbob on 25 April 2011, 17:19:59

I think that PCD is too large to safely fit on the omega

Title: Re: Alloys
Post by: feeutfo on 25 April 2011, 17:57:32

BMW wheels will not fit straight on, wrong bolt pattern. Don't know if there's an adapter spacer available...?

Title: Re: Alloys
Post by: TheBoy on 25 April 2011, 18:52:30

Quote

for the fronts you can have either 225 - 245 40/45 18 and for the rear you caqn have anything up to 285's without having any rubbing issues.

I have 8.5 x 18 on the front and 10.5 x 18 on the rears, and the tyre sizes I went for were 225/40/18 on the front and 265/35/18 on the rear

Blimey, properly tyred as per GM's recommendations, Omega's understeer like a pregnant dog at speed. That must be a handful in the bends ;D

Title: Re: Alloys
Post by: Mr Gav on 25 April 2011, 21:28:46

Quote

I have 8.5 x 18 on the front

Have you got hubcentric spacers or are you not running much -camber/

Title: Re: Alloys
Post by: Lazydocker on 25 April 2011, 21:33:57

Personally, I wouldn't fit wobble bolts at all... I don't trust them where wheels are concerned ::) ::)

Title: Re: Alloys
Post by: The Red Baron on 25 April 2011, 21:42:43

Quote

Personally, I wouldn't fit wobble bolts at all... I don't trust them where wheels are concerned ::) ::)

dont think i would either paul tbh.

Title: Re: Alloys
Post by: Shimmy on 25 April 2011, 23:05:08

Anyone got a link to a spec sheet for all omega alloys?

Title: Re: Alloys
Post by: jordan681 on 02 May 2011, 21:30:01

Quote

Quote

for the fronts you can have either 225 - 245 40/45 18 and for the rear you caqn have anything up to 285's without having any rubbing issues.

I have 8.5 x 18 on the front and 10.5 x 18 on the rears, and the tyre sizes I went for were 225/40/18 on the front and 265/35/18 on the rear

Blimey, properly tyred as per GM's recommendations, Omega's understeer like a pregnant dog at speed. That must be a handful in the bends ;D

the ponly time I have ever hada problem with the handleing was when it was snowing..  cos of the wide rears I had no traction..   apart from that it handles like a gokart...

Title: Re: Alloys
Post by: jordan681 on 02 May 2011, 21:31:41

Quote

Quote

I have 8.5 x 18 on the front

Have you got hubcentric spacers or are you not running much -camber/

no spacers and I haven't touched the camber...  all I did was fit the wheels and tyres and then to it t the garaged t get a 4 wheel alignment 

Title: Re: Alloys
Post by: mrgreen on 02 May 2011, 23:59:17

you could use adapters or have them redrilled but imho i would just buy the one's that fit right in the first place there's loads of second hand wheels out there going cheap

Title: Re: Alloys
Post by: o-meg-a on 03 May 2011, 00:23:56

You would need these.

http://www.europerformance.co.uk/pages/products/category_results.mhtml?category=hrwheeladaptors&car=vauxhallomega&manufacturer=hrwheels&sub_category=1

Would widen the track by 20mm or more and allow you to fit BMW alloys.
though about doing it myself as the BMW alloys are very appealing.

But I've not got £140 rolling about at the moment.