Need help choosing offset and width for an 1992 r32 gtr - GT-R Register - Official Nissan Skyline and GTR Owners Club forum

4jo3 · 2nd October 2008, 12:21 AM

Hello,

I have a 1992 nissan skyline gtr with 18x8.5" on the front and 18x9.5" on the rear with unknown offsets and unknown spacers so I am running just rwd for now but I would like to run awd and I would like to get rid of the spacers because they are not hub centric so the car shakes at around 100km/hr. Hence, I would like to run 18" rims but I need help choosing an offset and rim width. I have found that I need a rim with a centerbore of 66mm but I cannot find a common response to the offset and rim width.

Thanks,
Justin

P3RV3RT · 2nd October 2008, 12:39 AM

Ill try and keep it simple......

A very commom size of alloy to use for the R32 GTR aswell as the 33 and 34 is a 18x9.5J

For the R32 you need an offset of around 20ET (15-25 should be OK)

So look for an alloy that is between 9.0J - 10.0J with an offset of 20ET.

You also need to choose a correct tyre size, 255/35 or 265/35 section is the norm with the alloy sizes mentioned.

I have 18x9.5J 15ET, 265/35/18 tyres fitted to my R32 GTR. Now I have the suspension/ride height very very low and have had the arches rolled/flared for the alloys to fit. There is alot of room now but I would get scrubbing if they were'nt!
Its very easy to roll the lip on the arches, a garage nearby should be able to do it. It will give you an extra 20mm to play with.

I also have a set of 18x9.0J 20ET, 255/35/18 tyres. These fitted perfectly with the standard arches with no rubbing.

Baz

V1H · 3rd October 2008, 02:10 PM

car lowered, camber within oe spec and no modes to arches

9x18 +22

9.5x18 +22 fills it out more and more common

9.5x18 +15 protrude out pass the rear wheel arch a few mm, best used with 255/35/18 or 245/40/18(stretched look).

pcd 5x114.3

hub - most aftermarket wheels are 73mm and you use a 73-66.1 hub reducer to get the right size.

also as mentioned above, there is a leeway depending on width and offset.

Cris · 3rd October 2008, 02:42 PM

I run 18x9.5 ET12 and they sit perfectly in the arches. They do not protrude out of the arches. However any less offset than this and they would.

I would suggest either 9.0" or 9.5" rims if you're looking at 18" wheels. You could then run either 255 or 265 tyres. There is a chap who runs 10.5 with 275/35R18 he's not said if they rub so that's probably the limit. I'd have thought that a 275 would sit better on a 10" rim if that's any help.

Stachi · 3rd October 2008, 02:45 PM

9.5x18" ET12 all the way

Works flawlessly and looks quite good! A few mm's ET back or forth won't matter though.... I've got ET8 and makes no difference in feeling or fouling anything.

Marc

2nd October 2008, 12:21 AM	#1 (permalink)
4jo3 New Users Join Date: Oct 2008 Posts: 4	Need help choosing offset and width for an 1992 r32 gtr Hello, I have a 1992 nissan skyline gtr with 18x8.5" on the front and 18x9.5" on the rear with unknown offsets and unknown spacers so I am running just rwd for now but I would like to run awd and I would like to get rid of the spacers because they are not hub centric so the car shakes at around 100km/hr. Hence, I would like to run 18" rims but I need help choosing an offset and rim width. I have found that I need a rim with a centerbore of 66mm but I cannot find a common response to the offset and rim width. Thanks, Justin

3rd October 2008, 02:45 PM	#5 (permalink)
Stachi GTROC Member Join Date: Jan 2008 Location: Near Stuttgart, Germany Posts: 769	9.5x18" ET12 all the way Works flawlessly and looks quite good! A few mm's ET back or forth won't matter though.... I've got ET8 and makes no difference in feeling or fouling anything. Marc __________________ ---

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2nd October 2008, 12:39 AM	#2 (permalink)
P3RV3RT GTR Register Member Join Date: Aug 2005 Location: Liverpool Posts: 753	Ill try and keep it simple...... A very commom size of alloy to use for the R32 GTR aswell as the 33 and 34 is a 18x9.5J For the R32 you need an offset of around 20ET (15-25 should be OK) So look for an alloy that is between 9.0J - 10.0J with an offset of 20ET. You also need to choose a correct tyre size, 255/35 or 265/35 section is the norm with the alloy sizes mentioned. I have 18x9.5J 15ET, 265/35/18 tyres fitted to my R32 GTR. Now I have the suspension/ride height very very low and have had the arches rolled/flared for the alloys to fit. There is alot of room now but I would get scrubbing if they were'nt! Its very easy to roll the lip on the arches, a garage nearby should be able to do it. It will give you an extra 20mm to play with. I also have a set of 18x9.0J 20ET, 255/35/18 tyres. These fitted perfectly with the standard arches with no rubbing. Baz

3rd October 2008, 02:10 PM	#3 (permalink)
V1H GTR Register Member Join Date: Aug 2001 Location: London Posts: 373	car lowered, camber within oe spec and no modes to arches 9x18 +22 9.5x18 +22 fills it out more and more common 9.5x18 +15 protrude out pass the rear wheel arch a few mm, best used with 255/35/18 or 245/40/18(stretched look). pcd 5x114.3 hub - most aftermarket wheels are 73mm and you use a 73-66.1 hub reducer to get the right size. also as mentioned above, there is a leeway depending on width and offset.

3rd October 2008, 02:42 PM	#4 (permalink)
Cris GTROC Member Join Date: Sep 2007 Location: South London Posts: 437	I run 18x9.5 ET12 and they sit perfectly in the arches. They do not protrude out of the arches. However any less offset than this and they would. I would suggest either 9.0" or 9.5" rims if you're looking at 18" wheels. You could then run either 255 or 265 tyres. There is a chap who runs 10.5 with 275/35R18 he's not said if they rub so that's probably the limit. I'd have thought that a 275 would sit better on a 10" rim if that's any help.