PookeyMaster Donating Members 1,531 Member For: 13y 11m 7d Gender: Male Location: Parramatta, NSW Posted 25/06/12 12:41 PM Share Posted 25/06/12 12:41 PM So offset decreases when the number increases? So +40 is less than +30?And is offset in mm? Seems stupid using metric and imperial concurrently. When you increase run width, does it automatically alter the offset by a standard amount? Say of you went from stock 18" to stock 19", does the offset change? Link to comment Share on other sites More sharing options...
Shyfrd Turboless Donating Members 5,992 Member For: 13y 8m 30d Gender: Male Location: Geelong, Victoria Posted 25/06/12 01:18 PM Share Posted 25/06/12 01:18 PM Yep +40 is further into the middle of the car than +30.Yep one of the wheel whores, jd or worm told me its in mm.Understand it all, just the only thing I don't get is changing rim width. They just know what offset would work straight up lol, baffles me.So for example 8.5in +30, if changing to a 9.5in, to get the same offset, would it be +18? I come to that offset because 1in is 25mm..so half inch (12.5mm) bigger each side (inside/outside of rim), so 30-12=18.Correct jd or worm? Or wrong? 1 Link to comment Share on other sites More sharing options...
Pazzo Donating Members 11,132 Member For: 14y 1m 4d Gender: Male Posted 25/06/12 07:12 PM Share Posted 25/06/12 07:12 PM This is like the oil thread.....headfark! Link to comment Share on other sites More sharing options...
j.d Member 1,222 Member For: 14y 3m 30d Gender: Male Location: Eastern Suburbs, Melbourne Posted 25/06/12 08:42 PM Share Posted 25/06/12 08:42 PM (edited) haha yeah kinda shy, that will make it the same on the inside of the car and poke another 25 mm outside the car8.5 +30 would be 9.5 +43 and be the same on the guard sidethink of it like thisif you had 8.5 and 9.5 both plus 30, the 9.5 would stick out 12mm more (because 1 inch 25.4mm so split 13mm each side) so you need to make offset less to bring the outside of the rim inwards , so +43 bring it back towards the strut side Edited 25/06/12 08:49 PM by j.d 1 Link to comment Share on other sites More sharing options...
Henz Tampon inserted, Auto Acquired, next purchase a new handbag Donating Members 9,946 Member For: 16y 8m 6d Gender: Male Location: Vic Posted 25/06/12 08:59 PM Share Posted 25/06/12 08:59 PM ^^ reading that headf*cked me. But that's how it works. Link to comment Share on other sites More sharing options...
Shyfrd Turboless Donating Members 5,992 Member For: 13y 8m 30d Gender: Male Location: Geelong, Victoria Posted 25/06/12 09:04 PM Share Posted 25/06/12 09:04 PM Ahhh yep yep I went the wrong way lol. Thinking of it now dno why I'd make the bigger rim further out haha. Thanks jase Link to comment Share on other sites More sharing options...
j.d Member 1,222 Member For: 14y 3m 30d Gender: Male Location: Eastern Suburbs, Melbourne Posted 25/06/12 09:32 PM Share Posted 25/06/12 09:32 PM ^^ reading that headf*cked me. But that's how it works. Lol, yeah thought that might happen, doesn't help I said 12mm once and then 13mm the other time lol but I can't edit now, Link to comment Share on other sites More sharing options...
Corzza 777 Member 7,135 Member For: 15y 9m 25d Gender: Male Location: Neutral Bay. Born and Bred in the RSA Posted 26/06/12 12:23 AM Share Posted 26/06/12 12:23 AM So technically if I want to go to a 10.5" rear rim and I am currently on +35 I should be looking at a +42? Link to comment Share on other sites More sharing options...
Shyfrd Turboless Donating Members 5,992 Member For: 13y 8m 30d Gender: Male Location: Geelong, Victoria Posted 26/06/12 12:30 AM Share Posted 26/06/12 12:30 AM What size rim you got now? 9? 9.5? Link to comment Share on other sites More sharing options...
RynoF6 Idiot Member Donating Members 446 Member For: 14y 10m 5d Gender: Male Location: Muswellbrook, NSW Posted 26/06/12 12:48 AM Share Posted 26/06/12 12:48 AM So technically if I want to go to a 10.5" rear rim and I am currently on +35 I should be looking at a +42?Ive got +40 9.5 with a 285 and there is no more room to the lower arm on the inside. Link to comment Share on other sites More sharing options...
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