Getting it right

karmad · Nov 9th, 2009, 08:36

Hi im new to this , im about to start a custom job on my 68 123gt, so far i've lowered it 40mm now i want to put 18"x7 chromes on but not sure what is the best offset to go for as this is very important.
any help would be great thanks

classicswede · Nov 9th, 2009, 09:44

Et35 to ET40

If it is a GT don't go chopping the body about - get a bsic 2 door car for doing that.

Dylan144GT · Nov 9th, 2009, 12:37

Quote:

Originally Posted by classicswede

If it is a GT don't go chopping the body about - get a basic 2 door car for doing that.

Dylan

karmad · Nov 9th, 2009, 13:37

i dont want to cut the body at all maybe only roll the arches,does anyone know on this site about fitting bigger after market wheels

222s · Nov 9th, 2009, 14:26

Quote:

Originally Posted by classicswede

Et35 to ET40

Is that the stock offset? A 7J wheel with that offset would surely foul on the inner arches? To maintain the right backspacing with a wheel that wide, from memory, the offset is about 0

Quote:

Originally Posted by karmad

i dont want to cut the body at all maybe only roll the arches,does anyone know on this site about fitting bigger after market wheels

Not sure about larger diameter wheels (make sure though that the overall rolling radius of the tyres isn't larger though) but I do have experience of much wider wheels. I personally wouldn't go for anything wider than 7J, having had a set of wheels that were the same backspacing, but 7.5 / 8J wide. The inboard part of the wheel & tyre was in the same place as the originals, but the outer edge was directly under the wheel arch lips, and as a result there was no way that the car could be lowered. As it was, the front arch lips were BFHed for clearance, but the rears were just about ok.

However the extra outboard wheel width up front (& resulting change in the geometry) made the steering very jittery on anything except a smooth surface, and also possibly contributed to wheel bearing issues too.

karmad · Nov 9th, 2009, 15:16

thanks 222s, i saw a black amazon with 18x7 foose wheels on the custom showroom sectoin of amazon.forum.bilia.se and fell in love with it ,so im trying to do the same.is there anyone with 18 wheels on this site
check out the car on the site and you wil see why

asneddon · Nov 10th, 2009, 07:01

whats the great big alloy plate holding the rocker shaft in this thread (half way down this page):
http://amazon.forum.bilia.se/phpbb3/...=5316&start=30

Is it some aftermarket thing to offer less flex while at high revs, or some rocker assembly from an earlier(later?) model?

Dylan144GT · Nov 10th, 2009, 07:49

Hi asneddon

Its a sepperate rocker assembly; cuz these rockers are actually longer so they need to be offset. Will post a pic of the seperate assembly not installed tonight.

Dylan

asneddon · Nov 10th, 2009, 07:57

Ah, is it a >1.5:1 assembly? I figured there would just be offset bearings or something like that for those.

Looks like a nice bit of kit anyway.

Oilline · Nov 10th, 2009, 08:05

I have fitted 7.5" x 18" wheels to my estate. Standard ride height though.
If you search through my thread below you will find details of offsets and tyre choice. Also a link to a very good wheel offset calculator.

http://www.volvoforums.org.uk/showthread.php?t=56733

Nov 9th, 2009, 08:36	#1
karmad New Member Last Online: Jan 19th, 2015 13:14 Join Date: Nov 2009 Location: dublin	Getting it right Hi im new to this , im about to start a custom job on my 68 123gt, so far i've lowered it 40mm now i want to put 18"x7 chromes on but not sure what is the best offset to go for as this is very important. any help would be great thanks

Nov 9th, 2009, 09:44	#2
classicswede Trader Volvo in my veins Last Online: Yesterday 10:09 Join Date: Dec 2004 Location: Anglesey	Et35 to ET40 If it is a GT don't go chopping the body about - get a bsic 2 door car for doing that. __________________ http://www.classicswede.org www.classicswede.co.uk

Nov 9th, 2009, 13:37	#4
karmad New Member Last Online: Jan 19th, 2015 13:14 Join Date: Nov 2009 Location: dublin	i dont want to cut the body at all maybe only roll the arches,does anyone know on this site about fitting bigger after market wheels

Nov 9th, 2009, 15:16	#6
karmad New Member Last Online: Jan 19th, 2015 13:14 Join Date: Nov 2009 Location: dublin	thanks 222s, i saw a black amazon with 18x7 foose wheels on the custom showroom sectoin of amazon.forum.bilia.se and fell in love with it ,so im trying to do the same.is there anyone with 18 wheels on this site check out the car on the site and you wil see why

Nov 10th, 2009, 07:01	#7
asneddon Master Member Last Online: Nov 29th, 2021 23:46 Join Date: Jan 2009 Location: Dunedin	whats the great big alloy plate holding the rocker shaft in this thread (half way down this page): http://amazon.forum.bilia.se/phpbb3/...=5316&start=30 Is it some aftermarket thing to offer less flex while at high revs, or some rocker assembly from an earlier(later?) model?

Nov 10th, 2009, 07:49	#8
Dylan144GT Member Last Online: May 21st, 2023 08:35 Join Date: Aug 2008 Location: Cape Town	Hi asneddon Its a sepperate rocker assembly; cuz these rockers are actually longer so they need to be offset. Will post a pic of the seperate assembly not installed tonight. Dylan

Nov 10th, 2009, 07:57	#9
asneddon Master Member Last Online: Nov 29th, 2021 23:46 Join Date: Jan 2009 Location: Dunedin	Ah, is it a >1.5:1 assembly? I figured there would just be offset bearings or something like that for those. Looks like a nice bit of kit anyway.

Nov 10th, 2009, 08:05	#10
Oilline Member Last Online: Jun 11th, 2017 19:24 Join Date: Apr 2007 Location: Skipton	I have fitted 7.5" x 18" wheels to my estate. Standard ride height though. If you search through my thread below you will find details of offsets and tyre choice. Also a link to a very good wheel offset calculator. http://www.volvoforums.org.uk/showthread.php?t=56733

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