wkdtime Posted February 16, 2006 Share Posted February 16, 2006 9.5 rears with 30mm off set? how close will it be to the arch? thanx guys. wkdtime Quote Link to comment Share on other sites More sharing options...
merckx Posted February 16, 2006 Share Posted February 16, 2006 9.5 rears with 30mm off set? how close will it be to the arch? thanx guys. wkdtime Depends on the tyre aswell really. Not sure how accurate this is, you can enter all of the variables and it wil give you an answer.Supra Tyre fitment.xls Quote Link to comment Share on other sites More sharing options...
Homer Posted February 16, 2006 Share Posted February 16, 2006 9.5 rears with 30mm off set? how close will it be to the arch? thanx guys. wkdtime I'm not sure they will fit, thats a big difference to the stock 50mm. Edited to add: +30mm offset means that the wheel will acutally be further away from the arch, but with a 20mm difference from stock you run the risk of the inside of the wheel hitting the calipers. Just did a search and it seems some people have fitted +38 without problems, so you might be okay. Quote Link to comment Share on other sites More sharing options...
wkdtime Posted February 16, 2006 Author Share Posted February 16, 2006 I'm not sure they will fit, thats a big difference to the stock 50mm. you mean it will be fouling the arch? too close to the arch? can anyone confirm this please? Quote Link to comment Share on other sites More sharing options...
Homer Posted February 16, 2006 Share Posted February 16, 2006 see edit above, also take a look here: http://www.usacomp.com/terms.htm Quote Link to comment Share on other sites More sharing options...
wkdtime Posted February 16, 2006 Author Share Posted February 16, 2006 confused, i though the smaller the offset the closer it will be to the arch, thats what i have read from earlier posts. Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted February 16, 2006 Share Posted February 16, 2006 This is alway very confusing! i always thought being logical about it, std Supra wheels have a + offset of 50 presuming this is in mm! so it has a +distance of 50mm added to the centre line measurement, so if if you try a wheel with a + offset of 30mm it will sit 20mm farther in from the wheel arch! if it was a - offset it would be the reverse! Quote Link to comment Share on other sites More sharing options...
Miguel Posted February 16, 2006 Share Posted February 16, 2006 http://www.tireguides.com/images/offset.jpg Quote Link to comment Share on other sites More sharing options...
merckx Posted February 16, 2006 Share Posted February 16, 2006 Check this thread out, Ibrar is the forum wheel/tyre expert. http://www.mkivsupra.net/vbb/showthread.php?t=29064&highlight=30mm+offset Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted February 16, 2006 Share Posted February 16, 2006 That pic depicts a negative offset! Quote Link to comment Share on other sites More sharing options...
wkdtime Posted February 16, 2006 Author Share Posted February 16, 2006 this is so confusing, i have read numerous posts stating that the lower the offset the closer the sheel will be to the arch. Anyone care to shed some light or am i talking boxxxxks? just coppied this from the 'ibrar's' post "The PCD is fine, you will also need to take into consideration the hub centre bore (60.1mm) 30mm offset will bring the wheel further outboard and will foul the arches" so the smaller the offset the closer it will be to the arch, so back to the burning question will 9.5rears ET-30 offset rub against the arches? Quote Link to comment Share on other sites More sharing options...
supratoy Posted February 16, 2006 Share Posted February 16, 2006 I think a offset of 30 would be like having a 20mm spacer Hope this will help http://www.1010tires.com/WheelOffsetCalculator.asp Quote Link to comment Share on other sites More sharing options...
wkdtime Posted February 16, 2006 Author Share Posted February 16, 2006 I think a offset of 30 would be like having a 20mm spacer Hope this will help http://www.1010tires.com/WheelOffsetCalculator.asp yeah that does mate, lol i know i sound like a broken record, so does this mean it will rub against the arches? how close will it be? Quote Link to comment Share on other sites More sharing options...
Miguel Posted February 16, 2006 Share Posted February 16, 2006 That pic depicts a negative offset! Nope it was positive offset. But the new one shows both...It's just so the people that don't know which way round is what have a picture to go by....Just trying to be helpful! http://www.tomzwheels.com/offset1.jpg Quote Link to comment Share on other sites More sharing options...
Homer Posted February 16, 2006 Share Posted February 16, 2006 yeah that does mate, lol i know i sound like a broken record, so does this mean it will rub against the arches? how close will it be? So, do you have a wheel with a +30mm offset, or -30mm offset? If its -30mm you have no chance of them fitting, with +30mm you might get them to fit but could need spacers. Quote Link to comment Share on other sites More sharing options...
wkdtime Posted February 16, 2006 Author Share Posted February 16, 2006 It did indeed. But the new one shows both...It's just so the people that don't know which way round is what have a picture to go by....Just trying to be helpful! no sweat mate, i appreciate the info you offered. cheers Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted February 16, 2006 Share Posted February 16, 2006 So hopefully the picture will be self explanatory! Quote Link to comment Share on other sites More sharing options...
Miguel Posted February 16, 2006 Share Posted February 16, 2006 Sorry guys edited my last one ..as it was positive ....sorry peeps. Hope it helps anyway Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted February 16, 2006 Share Posted February 16, 2006 Nope it was positive offset. But the new one shows both...It's just so the people that don't know which way round is what have a picture to go by....Just trying to be helpful! http://www.tomzwheels.com/offset1.jpg Sorry but if you take a look at your other pic it says your wrong! this pic is a negative offset. Quote Link to comment Share on other sites More sharing options...
merckx Posted February 16, 2006 Share Posted February 16, 2006 Quick! Ask Ibrar, he's online now! Quote Link to comment Share on other sites More sharing options...
Miguel Posted February 16, 2006 Share Posted February 16, 2006 Dunno my eyes must be playing me about then ...because in the 1st pic it looks like the hub mounting surface is outwards from the centerline..depicting positive. And negative acording to the second set of pictures is the hub surface inward from the center line. ????????? Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted February 16, 2006 Share Posted February 16, 2006 http://www.tireguides.com/images/offset.jpg That pic above is a little deceptive:blink: and if you look its because the centre line and the offset line are reversed to this pic. Quote Link to comment Share on other sites More sharing options...
Miguel Posted February 16, 2006 Share Posted February 16, 2006 So are my eyes fine then Quote Link to comment Share on other sites More sharing options...
Homer Posted February 16, 2006 Share Posted February 16, 2006 That pic above is a little deceptive:blink: But it's correct larger positive offset means the wheel is closer to the arch, lower positive offset or negative offset means it sat further away from the arch. EDIT: IGNORE ABOVE! I got it the wrong way round. Quote Link to comment Share on other sites More sharing options...
Miguel Posted February 16, 2006 Share Posted February 16, 2006 That pic above is a little deceptive:blink: and if you look its because the centre line and the offset line are reversed to this pic. Wheels are facing the same way, mounting hubs both on the inside left hand and centerline in the same place ...I'm a bit lost now but maybe this will clear it up. http://www.tomzwheels.com/offset1.jpg The picture shows a wheel with the positive offset. A positive offset will cause the wheel to set in or tuck into the vehicle. Originally you found positive offsets on just front wheel vehicles. Due to that some people refer to positive offset wheels as front wheel drive offsets. Currently there are many rear wheel drive cars and trucks with positive offsets. The higher the positive offset the less it sticks out from the vehicle and it will have a higher Backspace. And the website for you: http://www.tomzwheels.com/offset.htm Quote Link to comment Share on other sites More sharing options...
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