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18 " alloys #142127
29/06/2006 18:17
29/06/2006 18:17

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What offset would i be looking at to get a set of 18's on a 20VT.

Would consider spacers to get over the calipers.

Doesnt seem to be many options for the 20VT.

Anyone any ideas? After some different rims...

Cheers

Re: 18 " alloys #142128
29/06/2006 18:37
29/06/2006 18:37

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Do a search on here. There are now numerous posts on wheels and tyres. You're bound to find what you're looking for.

Re: 18 " alloys #142129
29/06/2006 19:06
29/06/2006 19:06

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Re: 18 " alloys #142130
30/06/2006 17:56
30/06/2006 17:56

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Cheers Clark!

What are wobbly bolts tho???

Re: 18 " alloys #142131
30/06/2006 23:23
30/06/2006 23:23

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they are bolts where the bit you put the socket on moves slightly, i have them on my car.

Re: 18 " alloys #142132
01/07/2006 16:08
01/07/2006 16:08

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Quote:

they are bolts where the bit you put the socket on moves slightly, i have them on my car.



so it allows you to fit 100mm pcd rims on 98mm pcd hubs

Kev

Re: 18 " alloys #142133
01/07/2006 22:28
01/07/2006 22:28

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yeah thats it but he asked wot they are not what they do

Re: 18 " alloys #142134
02/07/2006 19:20
02/07/2006 19:20
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ok looking to buy some alloys in a few weeks , but i was wondering instead of using spacers , could the off set be changed , i mean instead of using a 5mm spacer could the offset be reduced from 39mm to 34mm? if so would i need longer bolts?

Re: 18 " alloys #142135
02/07/2006 19:28
02/07/2006 19:28

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it is more to do with the design of the whhel, and the design of the spokes that makes life difficult, not really the offset if you see what i mean. prorace do offsets from 0 to 50+ i thik on alot of their designs and still only 1 or 2 fit correctly

Re: 18 " alloys #142136
02/07/2006 19:52
02/07/2006 19:52

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The only way to assure fitment is to either offer up the wheel itself, or choose a wheel that is already used by members on the List of Wheels thread.

Guessing changes to offset will not work as the offset will not affect whether or not the spokes clear the calipers - it's the design of the wheel that counts.

Hamster

Re: 18 " alloys #142137
02/07/2006 22:05
02/07/2006 22:05
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ive got 18" azev ls split rims on my na which came off rogers 20vt. made for the brembos, i think the offset is 30 on a 8.5J wide wheel.

no clearance issues at all, and work with the standard 4 x 98 pcd.

they look awesome aswell!!!

Re: 18 " alloys #142138
03/07/2006 05:11
03/07/2006 05:11

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reza send me a link showing these wheels on your Coupe so I can add them to the list of wheels thread please

Re: 18 " alloys #142139
04/07/2006 19:26
04/07/2006 19:26

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My Dare V5s are ET 25 with PCD 4x98. They sent them with ET 30 which didn't clear the brembos so had to be returned to get the ET25 needed. However as previously said the design of the spokes plays a big part in whether a wheel will fit.

Re: 18 " alloys #142140
05/07/2006 02:34
05/07/2006 02:34
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ok, but what i meant is wheels that fit with spacers, i think its hamsters with the wolfrace twinblades , had to use a 3mm spacer to clear the brembos , what i meant is could the off set be reduced by 3mm to clear the brembos to save the use of spacers? i am right that the lower offset would move the wheel out more? G

Re: 18 " alloys #142141
05/07/2006 05:05
05/07/2006 05:05

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Reza, Aren't they Azev M's that were on Rog's car???

Re: 18 " alloys #142142
05/07/2006 21:41
05/07/2006 21:41

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Quote:

ok, but what i meant is wheels that fit with spacers, i think its hamsters with the wolfrace twinblades , had to use a 3mm spacer to clear the brembos , what i meant is could the off set be reduced by 3mm to clear the brembos to save the use of spacers? i am right that the lower offset would move the wheel out more? G




The offset is the distance from the centerline of the wheel to the hub face. So yes, the lower it is, the further the wheels will "move out".

This also means the offset cannot be reduced (you can increase it, as I have done this myself on another car and aftermarket wheels) as you'd need to put more material on the hub face, hence the need for spacers.

Last edited by inkblack; 05/07/2006 22:00.
Re: 18 " alloys #142143
07/07/2006 12:51
07/07/2006 12:51
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The offset is the distance from the centerline of the wheel to the hub face. So yes, the lower it is, the further the wheels will "move out".

This also means the offset cannot be reduced (you can increase it, as I have done this myself on another car and aftermarket wheels) as you'd need to put more material on the hub face, hence the need for spacers.




Isn't this backward the wheels on my coupe are 35p, I looked at some other wheels which were 15p - if you are right they would be further out in the guard - if I put spacers in it would just move it out further??

Isn't it the lower the number the further in it is?? I could be totally wrong

But wouldn't spacers on a 15p wheel make it say 25 or 35p rather than lower numbers as above?


Re: 18 " alloys #142144
07/07/2006 13:52
07/07/2006 13:52

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Quote:






The offset is the distance from the centerline of the wheel to the hub face. So yes, the lower it is, the further the wheels will "move out".

This also means the offset cannot be reduced (you can increase it, as I have done this myself on another car and aftermarket wheels) as you'd need to put more material on the hub face, hence the need for spacers.




Isn't this backward the wheels on my coupe are 35p, I looked at some other wheels which were 15p - if you are right they would be further out in the guard - if I put spacers in it would just move it out further??

Isn't it the lower the number the further in it is?? I could be totally wrong

But wouldn't spacers on a 15p wheel make it say 25 or 35p rather than lower numbers as above?




I can see how confusing it can be but no, the lower/smaller the offset is, the further out the wheel will be. Adding spacers would just make this worse... or better if that's what you want to happen.

Here's a link explaining all wheel offset

Re: 18 " alloys #142145
07/07/2006 14:49
07/07/2006 14:49

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I'm running 18's (Dare v5's) on a 26et offset. Pushing the wheels further out than the standard 16's 35et offset.

IMO you have quite a large amount of spacer on the Coupe arches to fiddle with offsets, and TBH I could have gone for an even lower offset (something like 22et) and it would still have cleared the arch lips.


Re: 18 " alloys #142146
07/07/2006 15:53
07/07/2006 15:53
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Not really disagreeing with anything written but whether a wheel fits is a symptom of offset and design. The lower the offset the more the wheel sticks out

As far as good offsets for the coupe - the OE 20VT wheels are ET42, but our good friends of the Alfa GTV world (same chasis dont forget) use ET30.5 as standard which means their wheels 'stick out' more (but then the body panels stick out more) but also means the track width is increased and the handling is improved. ET30.5 works well on the coupe too - I have Alfa 5 stud hubs on my coupe (5x98) and I used to run 17" GTV Cup alloys. remember though there is a limit to what will clear the rear arch and clear the inside of the front arch near full lock

And you can reduce offset (which means increasing the offset number e.g. from ET35 to ET37) on wheels i.e. the face of the alloy sits closer to the hub - there are two techniques I am aware of/have used -
(1) Machine the hub face. Between where the collar of the bolt ends and the hub face there is some distance - usually around 7mm. As a rule of thumb you can probably go down to about 4mm but it will depend on the strength of the wheel what is safe. Some alloy manufacturers provide bolts longer than standard - that will equally mean there is more scope for offset reduction

(2) Oversize the bolt holes and insert metal collars. They then allow some more adjustability and allow changes in stud pattern. I have had this done on a set of alloys once - went from 5x110 to 5x114.3. The collars are supported far further up in the wheel casting so you can remove material off the hub face.


Former low boost hero - 616BHP@1.5 bar. 2.4 20VT RIP
Re: 18 " alloys #142147
07/07/2006 16:43
07/07/2006 16:43

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Quote:


(1) Machine the hub face. Between where the collar of the bolt ends and the hub face there is some distance - usually around 7mm. As a rule of thumb you can probably go down to about 4mm but it will depend on the strength of the wheel what is safe. Some alloy manufacturers provide bolts longer than standard - that will equally mean there is more scope for offset reduction





This is what I did a few years back on a Vauxhall which run a 49mm offset. (which were at least then hard wheels to come by) I machined the offset of my Momo's from a 40mm to 45mm offset to bring the wheels in as they stuck out to far.

Re: 18 " alloys #142148
08/07/2006 00:39
08/07/2006 00:39
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Quote:

Quote:

ok, but what i meant is wheels that fit with spacers, i think its hamsters with the wolfrace twinblades , had to use a 3mm spacer to clear the brembos , what i meant is could the off set be reduced by 3mm to clear the brembos to save the use of spacers? i am right that the lower offset would move the wheel out more? G




The offset is the distance from the centerline of the wheel to the hub face. So yes, the lower it is, the further the wheels will "move out".

This also means the offset cannot be reduced (you can increase it, as I have done this myself on another car and aftermarket wheels) as you'd need to put more material on the hub face, hence the need for spacers.




yep, but the wheel could be ordered from new with the different offset?

Re: 18 " alloys #142149
08/07/2006 15:59
08/07/2006 15:59

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Quote:

yep, but the wheel could be ordered from new with the different offset?




I think he's talking about wheels which need a spacer to begin with and don't come in the correct offset.

Re: 18 " alloys #142150
09/07/2006 00:28
09/07/2006 00:28
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i really like the wheels that hamster has , but he is using a 3mm spacer(iirc), so just thought it would be easier to get the wheels with a lower offset instead of the spacer. G

Re: 18 " alloys #142151
10/07/2006 21:28
10/07/2006 21:28
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A lot of manufacturers won't do specific offsets to order because it is easier to sell in bulk to one size. That's also why they won't sell 4x98 in some designs but will sell 4x100 offer spiggot rings to adapt the hub and of course wobble-bolts. Likewise for wheels with two bolt patterns

Having said that some manufacturers are able to take offset requirements into consideration - these are typically the companies that are low volume or start with blanks and machine them to order. The best example in the UK is probably compomotive at a guess. I think BBS and Azev may also be able to accomodate different offsets to a point

The real problem is that in the 4x98 size aside from the coupe there is only the Stilo, Multipla and the lancia delta integrale (and later lancia deltas which the UK doesn't get) that can fit 18s AFAIK.


Former low boost hero - 616BHP@1.5 bar. 2.4 20VT RIP
Re: 18 " alloys #142152
11/07/2006 14:52
11/07/2006 14:52

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Quote:

The real problem is that in the 4x98 size aside from the coupe there is only the Stilo, Multipla and the lancia delta integrale (and later lancia deltas which the UK doesn't get) that can fit 18s AFAIK.




That's partly true. But a lot of the newer Fiat Range can fit 18" rims, (with the standard Fiat 4x98pcd). These include: Croma (new model), Punto MkII/MkIIb/Grande Punto, Barchetta, Idea, Sedici. Not including the Brazillian/South American models that we don't see in the UK.

Hopefully this might pave the way for more manufacturers to design wheels with the Fiat PCD in mind.

Re: 18 " alloys #142153
11/07/2006 15:08
11/07/2006 15:08
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I have to now point out that I am a stud pattern geek

The new Grande Punto and Sedici are both 4x100
The new Fiat Croma is 5x110

The reason is that they are on GM platforms with the exception of the Sedici which is on a Suzuki platform. So actually we will be worse off in the future not better.

The Alfa 159 and Brera are also on the 5x110 stud pattern.


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Re: 18 " alloys #142154
11/07/2006 18:44
11/07/2006 18:44

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Quote:

I have to now point out that I am a stud pattern geek

The new Grande Punto and Sedici are both 4x100
The new Fiat Croma is 5x110

The reason is that they are on GM platforms with the exception of the Sedici which is on a Suzuki platform. So actually we will be worse off in the future not better.

The Alfa 159 and Brera are also on the 5x110 stud pattern.




Ah. I stand corrected. But then, I'm not a stud pattern geek.

And quite right, if thats the case with the newer range, the choice of alloys is going to be more difficult.

Hub conversion group buy might be in order soon....

Re: 18 " alloys #142155
11/07/2006 19:49
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You may actually be able to change the hubs to 4x100 by offset drilling them and using a larger thread (M14 x1.5 I'd guess) anyway (also you'd have to drill out your discs. Just that no-one has been brave enough to try it.
I think the VW polo might still use 4x100 and the Mini does (which is a popular motor for aftermarket wheels)

Or you could put another stud pattern on the hub (4 stud only is possible) but I think the only pattern of use that might fit safely is the Ford 4 stud pattern - 4x108 but it may not fit as the hubs don't have that much meat after the 4x98 pattern


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