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How can I find out my wheel's PCD and stuff? Can you get 4stud - 5stud adapter plates? While I like the original alloys, I've seen the examples below and think that they'd be just gorgous on my car.... (these are my favs - I think they're cracking!) Plus, has anyone any experience of the "multi-fit" wheels with loads of nut holes?
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Sept 4, 2004 10:24:06 GMT
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on a five stud measure from centre of holes of say number 1 and 3 and then multiply by 0.7 to find it. (i think) four stud is just the centre to centre of opposing holes. can't help with owt else, sorry. (i've seen some nice 5 spoke Merc alloys down the scrappy, £100 with tyres.....hmmmm )
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Last Edit: Sept 4, 2004 10:25:06 GMT by guz
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Sept 4, 2004 10:50:09 GMT
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Ooooh nice wheels! Have you tried the PCD chart on our very own Retro Rides site? As far as I know, there is no way to adapt 4 stud to 5 stud and vice-versa. A lot of Beetle people seem to get their hubs drilled to a very common PCD (say 4x100) to give themselves more choice of wheels. Never used multi-fit wheels so I can't help on that. One other cautionary note: check the offset of your stock wheels against the new ones (the measurement is from the mounting surface to the centre of the wheel..bit hard to explain without diagrams ) - you could find that it gives you problems. My Merc wheels were originally a low-offset, but the new ones are a higher offset. Fortunately they still cleared the suspension / inner wings (just!) - I did have to get the grinder out on the wheel arches though ;D Guz, what Merc wheels are they? Do you have pics? ;D
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Sept 4, 2004 11:04:53 GMT
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i dunno, i've got a set on Penta and they're different, thinner spokes, sharper casting, bolts to the edges.
unable to do piccies, which is a curse word.
there's also a 80's saloon with recently restored OEM alloys, scrapped due to blown engine IIRC.
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Kris
Posted a lot
Posts: 1,631
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Sept 4, 2004 11:21:26 GMT
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I may be wrong, but isn`t there a 4-to-5 stud adaptor that the VW guys use to fit Porsche 5 stud wheels?
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Sept 4, 2004 11:29:08 GMT
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Well I'm no expert but I'll attempt to explain offsets.
If a wheel has no offset, then the centre of the wheel is in the centre of the rim, by which I mean that there is the same width of rim facing the inside (hub side) as the outside. A wheel with a positive offset (I think) is one where more of the rim width is facing the hub side and less on the outside. These are normally best suited to front wheel drive cars. A negative offset is my favourite. The rim is mostly on the outside, with less on the hub-side, so the wheels have a sort of dished appearance in some cases, which is why I like a wheel with a lot of negative offset.
(See, there is a reason I like Weller eight spokes! ;D ;D)
negative offset is often good for some rear wheel drives, which is why Formula 1 cars and drag racers etc have wide dished wheels, at the back especially.
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"He's not the messiah, he's a very naughty boy!"
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Sept 4, 2004 11:38:38 GMT
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gotta agree with the Wellers (got 'em on my mini estate) see also reverse rims on works minis.
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Kris
Posted a lot
Posts: 1,631
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Sept 4, 2004 11:46:39 GMT
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Sept 4, 2004 12:21:29 GMT
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Benzboy-i'm off to see if they're still for sale, if they are i'll get a piccie but i'll have to get the wife to mail it cos i can't do techy stuff like that
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Sept 4, 2004 12:47:09 GMT
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Well I'm no expert but I'll attempt to explain offsets. If a wheel has no offset, then the centre of the wheel is in the centre of the rim, by which I mean that there is the same width of rim facing the inside (hub side) as the outside. A wheel with a negative offset (I think) is one where more of the rim width is facing the hub side and less on the outside. These are normally best suited to front wheel drive cars. A positive offset is my favourite. The rim is mostly on the outside, with less on the hub-side, so the wheels have a sort of dished appearance in some cases, which is why I like a wheel with a lot of positive offset. (See, there is a reason I like Weller eight spokes! ;D ;D) So something like those Slots would be positive, since the hub is nearer the "inside" edge of the rim than the "outside" edge? The prob with those adapters is that they require wider wings (un;less you can get some very interesting offsets). The Sapporo wheels already come literally to the edge of the bodywork - about 8mm more and they'd protrude!
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SkoCan
Posted a lot
Quando omni flunkus, mortati
Posts: 1,916
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Sept 4, 2004 12:57:38 GMT
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Interesting. www.jcwhitney.com has some as well. They're a mite cheaper. Last quote I had put them at $75CDN/pr from the local bug shop.
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Sept 4, 2004 13:13:31 GMT
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Ooooh nice wheels! Have you tried the PCD chart on our very own Retro Rides site? ;D Yes, tried that but no real us - didn't have the Sapporo listed had Colt, but that's not handy as teh Starion was also the Colt Starion...
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Sept 4, 2004 13:15:28 GMT
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So something like those Slots would be positive, since the hub is nearer the "inside" edge of the rim than the "outside" edge? The prob with those adapters is that they require wider wings (un;less you can get some very interesting offsets). The Sapporo wheels already come literally to the edge of the bodywork - about 8mm more and they'd protrude! Yep, the way I work it out those slot mag type wheels in the pics have quite a large positive offset, which is why they have that dished appearance. Can't you get/adapt/make a set of flared wheelarches for the Sapporo, so that you could fit the adaptors, but still not have the wheels stick out a mile.
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"He's not the messiah, he's a very naughty boy!"
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Sept 4, 2004 13:19:42 GMT
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Yep, the way I work it out those slot mag type wheels in the pics have quite a large positive offset, which is why they have that dished appearance. Can't you get/adapt/make a set of flared wheelarches for the Sapporo, so that you could fit the adaptors, but still not have the wheels stick out a mile. maybe i could, but i'm not sure that i want to...
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Sept 4, 2004 13:21:24 GMT
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Mind you, it could spoile the lines of the car. I suppose not all cars look good with wide arches, that's more of a rally look thing.
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"He's not the messiah, he's a very naughty boy!"
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Sept 4, 2004 13:37:10 GMT
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0 offset = mounting face dead centre of rim. + offset = mounting face further towards outside edge of the rim (ie. the majority of the rim width will go further INWARDS) - offset = mounting face further towards inside edge of the rim (ie. the majority of the rim will go further OUTWARDS) Most oldschool cars require a 0 or - offset in order to fill the arches properly. Read this to get a better idea of the whole dealio! www.rsracing.com/tech-wheel.html
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Skyline: 1963 - 1973 - 1983 Sunny: 1982 450SLC: 1973 Navara: 1992 Gloria: 1992
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Sept 4, 2004 13:48:11 GMT
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Sorry, I got it mixed up! ;D Then I mean that front wheel drive cars often use positive offsets and rear wheel drives negative offsets, I always mix the two up. I'll change my post just now. I must stop acting like I know what I'm going on about.
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"He's not the messiah, he's a very naughty boy!"
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Sept 4, 2004 14:22:56 GMT
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are there any sites that tell you the PCD and offset of wheels?
ie those wolf super slots ...
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Sept 4, 2004 19:47:18 GMT
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If you have the wheels, the offset ought to be stamped into them somewhere - it'll be something like ET45, which is the offset in mm, and the ET which is German for offset or summat (Dunno why it's in German...) I always get neg and pos offsets round my neck too Didn't know u could get a 4 stud to 5 stud converter! That's cool! There are sites that give run-downs of PCD's centre bore size and Offsets, but I've found they are by no means a definitive list and don't include all models. I don't have the sites saved any more, but I came unstuck by using their info - I was informed that all VW Passats have a 5x112 PCD, so off I went and got these lurvely 16" VW alloys for the Benz (same PCD), only to find that they were in fact 5x100 . Still never mind, I eBayed them off for the same price and got me old-school rims instead! Guz - would be great to see the pix!
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Sept 4, 2004 21:37:39 GMT
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Offset's aren't always stamped on the rim, infact in a lot of cases, they never were and in some others they were on a sticker attached to the inside rim, which as you can imagine.. with time.. disappears! ;D As for telling what the PCD, offset & backspace of a rim is, the only true way is to measure it. A lot of wheels from the same manufacturer of the same style actually come in varying offsets and PCD's to accomodate differing vehicles. You can also run into a problem when using adapters/spacers changing from a 4stud PCD to a 5stud PCD of the same measurement because one stud may have to be longer as it will share the same position that it's 4 stud counterpart used.
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Skyline: 1963 - 1973 - 1983 Sunny: 1982 450SLC: 1973 Navara: 1992 Gloria: 1992
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