Volk GT-7's offset..... the usual questions.
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From: England
Volk GT-7's offset..... the usual questions.
Hi Guys,
My 1st post here so be gentle
.
I came here as I'm really trying to get a definitive answer. I'm going around in circles here in the UK.
I'm looking at putting 19" GT-7's (either Gunmetal or Mercury Silver) on my Azure Blue 350z with standard suspension.
I need advice to confirm offsets that will clear the Brembo's without any further work and not have clearance issues AND not look like a dog's dinner on standard suspension (or if I lower in the future).
I wanted to put 9.5" front and 10.5" rear. Someone here must have put them on at that size? (pics would be great?) I was also planning to run also a 245/35 front tire and 275/35 rear also?
Alternatively, if I HAVE to go 8.5 front and 9.5 rear, then what are the best offsets I should use?
I've currently got the optional Rays alloys on here in the UK at 8" +30 front and 8.5" +33 rear.
Please help, I'm loosing the will to live!
My 1st post here so be gentle
. I came here as I'm really trying to get a definitive answer. I'm going around in circles here in the UK.
I'm looking at putting 19" GT-7's (either Gunmetal or Mercury Silver) on my Azure Blue 350z with standard suspension.
I need advice to confirm offsets that will clear the Brembo's without any further work and not have clearance issues AND not look like a dog's dinner on standard suspension (or if I lower in the future).
I wanted to put 9.5" front and 10.5" rear. Someone here must have put them on at that size? (pics would be great?) I was also planning to run also a 245/35 front tire and 275/35 rear also?
Alternatively, if I HAVE to go 8.5 front and 9.5 rear, then what are the best offsets I should use?
I've currently got the optional Rays alloys on here in the UK at 8" +30 front and 8.5" +33 rear.
Please help, I'm loosing the will to live!
I don't need to say it....
100 Top Questions Thread
Q: What wheel sizes and offsets do I need?
A: Generally speaking, there are a LOT of different combinations that people are running on their Z or G.
Let's get the basics out of the way first: You need a lug pattern of 5x114.3, width between 8 and 11 inches, and diameter of 17", 18", 19", or 20".
Here are some of the more popular wheel and tire sizes (for good reason) that people put on their Z's. There is no "RIGHT" answer but there is a limit to how big or small you can go.
18" combination:
Front 18" x 8.5" , Offset +15 to +25, Tires 245/40/18
Rear 18" x 9.5" , Offset +15 to +25, Tires 275/40/18
(lower offset such as +10 in rear is possible but may require rolling)
Front 18" x 9.5" , Offset +25 to +30, Tires 255/40/18
Rear 18" x 10.5" , Offset +28 to +35, Tires 285/40/18 or 295/35/18
(lower offset such as +23 in the rear is possible but may require rolling)
19" combination:
Front 19" x 8.5" , Offset +15 to +25, Tires 245/35/19
Rear 19" x 9.5" , Offset +15 to +25, Tires 275/35/19
(lower offset such as +10 in rear is possible but may require rolling)
Front 19" x 9.5" , Offset +25 to +30, Tires 255/35/19 or 265/35/19
Rear 19" x 10.5" , Offset +23 to +32, Tires 285/35/19 or 295/35/19
(lower offset such as +23 or wider tires in the rear is possible but may require rolling)
From this, you get the idea of what is required to go with smaller wheels like 17's, (typically lighter, faster acceleration), or bigger wheels like 20's (bigger, heavier, usually makes you feel slower).
Get to know how to use the following tools and you will be able to figure out for yourself the correct offsets and tire sizes you need:
Tire size calculator (click)
Wheel Offset Calculator
Certain combinations of LOW OFFSET and/or WIDE WHEELS will require what is known as "fender rolling" or "fender cutting".
If you are not familiar with the term "fender rolling", here is a quick but useful lesson you can learn in a couple of minutes: Go outside to wherever your Z is parked. Run your fingers along the inside edge of a REAR fender just above your tires. You will feel a sharp edge and a flap of metal sticking inward towards the car. Now, go up to the FRONT fender, and feel the inside of the fender again. You should notice that the flap of metal has been "rolled" upwards on the front fenders. This is exactly what fender rolling is all about. The rear fenders will need to be rolled to make room for wide wheels or low offsets, or else your tires may rub on the metal when you take hard corners or hit bumps. Any experienced wheel/tire shop should know how to roll a fender. If you go to a shop that does not seem like they know what they're doing, get out of there.
100 Top Questions Thread
Q: What wheel sizes and offsets do I need?
A: Generally speaking, there are a LOT of different combinations that people are running on their Z or G.
Let's get the basics out of the way first: You need a lug pattern of 5x114.3, width between 8 and 11 inches, and diameter of 17", 18", 19", or 20".
Here are some of the more popular wheel and tire sizes (for good reason) that people put on their Z's. There is no "RIGHT" answer but there is a limit to how big or small you can go.
18" combination:
Front 18" x 8.5" , Offset +15 to +25, Tires 245/40/18
Rear 18" x 9.5" , Offset +15 to +25, Tires 275/40/18
(lower offset such as +10 in rear is possible but may require rolling)
Front 18" x 9.5" , Offset +25 to +30, Tires 255/40/18
Rear 18" x 10.5" , Offset +28 to +35, Tires 285/40/18 or 295/35/18
(lower offset such as +23 in the rear is possible but may require rolling)
19" combination:
Front 19" x 8.5" , Offset +15 to +25, Tires 245/35/19
Rear 19" x 9.5" , Offset +15 to +25, Tires 275/35/19
(lower offset such as +10 in rear is possible but may require rolling)
Front 19" x 9.5" , Offset +25 to +30, Tires 255/35/19 or 265/35/19
Rear 19" x 10.5" , Offset +23 to +32, Tires 285/35/19 or 295/35/19
(lower offset such as +23 or wider tires in the rear is possible but may require rolling)
From this, you get the idea of what is required to go with smaller wheels like 17's, (typically lighter, faster acceleration), or bigger wheels like 20's (bigger, heavier, usually makes you feel slower).
Get to know how to use the following tools and you will be able to figure out for yourself the correct offsets and tire sizes you need:
Tire size calculator (click)
Wheel Offset Calculator
Certain combinations of LOW OFFSET and/or WIDE WHEELS will require what is known as "fender rolling" or "fender cutting".
If you are not familiar with the term "fender rolling", here is a quick but useful lesson you can learn in a couple of minutes: Go outside to wherever your Z is parked. Run your fingers along the inside edge of a REAR fender just above your tires. You will feel a sharp edge and a flap of metal sticking inward towards the car. Now, go up to the FRONT fender, and feel the inside of the fender again. You should notice that the flap of metal has been "rolled" upwards on the front fenders. This is exactly what fender rolling is all about. The rear fenders will need to be rolled to make room for wide wheels or low offsets, or else your tires may rub on the metal when you take hard corners or hit bumps. Any experienced wheel/tire shop should know how to roll a fender. If you go to a shop that does not seem like they know what they're doing, get out of there.
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From: Ontario
Originally Posted by 350ZZack
Front 19" x 9.5" , Offset +25 to +30, Tires 255/35/19 or 265/35/19
Rear 19" x 10.5" , Offset +23 to +32, Tires 285/35/19 or 295/35/19
(lower offset such as +23 or wider tires in the rear is possible but may require rolling)
Rear 19" x 10.5" , Offset +23 to +32, Tires 285/35/19 or 295/35/19
(lower offset such as +23 or wider tires in the rear is possible but may require rolling)
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Joined: May 2006
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From: Washington
^^^No he's just saying that the offsets he listed are the more common ones. I have +17 on the front's and there perfect except fot eh amount of tire.
I wouldn't even want to think what 245's look on a 9.5 wheel. Of course I have toyos. I put a 255/35 on my 9.5 setup and I still feel there under-tired. and for the rears go 285 not 275.
I wouldn't even want to think what 245's look on a 9.5 wheel. Of course I have toyos. I put a 255/35 on my 9.5 setup and I still feel there under-tired. and for the rears go 285 not 275.
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Thread Starter
Registered User
Joined: Aug 2006
Posts: 3
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From: England
Originally Posted by Spec_Tacular
Ok I just got 19x9.5 with +21 and 19x10.5 +24. Not on the car yet. Are you saying my front combination wont work??
Thanks for all the assistance guys.....
New Member
Joined: Mar 2004
Posts: 442
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From: Ontario
Originally Posted by Jacko350z
You sure you got a 19"x9.5" +21 front? According to the link to the Rays site, they don't do an offset of +21 in that size?
Thanks for all the assistance guys.....
Thanks for all the assistance guys.....
New Member
Joined: Mar 2004
Posts: 442
Likes: 0
From: Ontario
Originally Posted by Advent7
^^^No he's just saying that the offsets he listed are the more common ones. I have +17 on the front's and there perfect except fot eh amount of tire.
I wouldn't even want to think what 245's look on a 9.5 wheel. Of course I have toyos. I put a 255/35 on my 9.5 setup and I still feel there under-tired. and for the rears go 285 not 275.
I wouldn't even want to think what 245's look on a 9.5 wheel. Of course I have toyos. I put a 255/35 on my 9.5 setup and I still feel there under-tired. and for the rears go 285 not 275.
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