Another Wheel Size Question
Thread Starter
Instructor
Joined: Apr 2018
Posts: 174
Likes: 17
From: Philadelphia, PA
Another Wheel Size Question
I'm getting ready to add the following to my Summit Racing shopping cart for my 1978
https://www.summitracing.com/parts/are-vn10558061b
Wheel, Torq-Thrust D, Aluminum, Matte Black, 15 in. x 8.0 in., 5 x 4.75 in. Bolt Circle, 4.500 in. Backspace
Will they fit without any issues? Also, if someone could provide me with a link for the appropriate lug nuts in black I would greatly appreciate it.
Thanks in advance!
https://www.summitracing.com/parts/are-vn10558061b
Wheel, Torq-Thrust D, Aluminum, Matte Black, 15 in. x 8.0 in., 5 x 4.75 in. Bolt Circle, 4.500 in. Backspace
Will they fit without any issues? Also, if someone could provide me with a link for the appropriate lug nuts in black I would greatly appreciate it.
Thanks in advance!
Thread Starter
Instructor
Joined: Apr 2018
Posts: 174
Likes: 17
From: Philadelphia, PA
Had a 1976 L-82, 4-sp
Joined: Mar 2011
Posts: 5,338
Likes: 1,213
From: Some days your the dog and some days your the hydrant.
Royal Canadian Navy
Cant you find a wheel with a 4" bs? Spacers aren't ideal. You may have to buy longer studs and all the work to get the old ones out and new ones in.
Safety Car
Joined: Oct 2007
Posts: 3,729
Likes: 267
From: Austin Texas
Corvette of the Year Winner 2017
2016 C3 of Year Finalist
hell no, cancel your order instead of ordering wrong backspace.
and ordering spacers, especially if they are Not Concentric mount.
I also would not buy 15" wheels now.
you have very few performance tires available the list gets smaller every year.
and ordering spacers, especially if they are Not Concentric mount.
I also would not buy 15" wheels now.
you have very few performance tires available the list gets smaller every year.
Thread Starter
Instructor
Joined: Apr 2018
Posts: 174
Likes: 17
From: Philadelphia, PA
Unfortunately I have brand new Coopers all round ( less than 100 miles on them), thus buying new tires really isn't in my budget.
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Race Director
Joined: Mar 2017
Posts: 11,906
Likes: 4,479
From: Virginia
Find some used YJ8 or N90 wheels on the Forum or Craigslist. They look much better, and should cost the same or less. They will also have the correct backspace.
I have a set of N90s at the shop waiting to be remounted with low-mileage Cooper Cobras. Tires are currently on aftermarket wheels with incorrect backspacing.
I have a set of N90s at the shop waiting to be remounted with low-mileage Cooper Cobras. Tires are currently on aftermarket wheels with incorrect backspacing.
Thread Starter
Instructor
Joined: Apr 2018
Posts: 174
Likes: 17
From: Philadelphia, PA
Find some used YJ8 or N90 wheels on the Forum or Craigslist. They look much better, and should cost the same or less. They will also have the correct backspace.
I have a set of N90s at the shop waiting to be remounted with low-mileage Cooper Cobras. Tires are currently on aftermarket wheels with incorrect backspacing.
I have a set of N90s at the shop waiting to be remounted with low-mileage Cooper Cobras. Tires are currently on aftermarket wheels with incorrect backspacing.
Race Director
Joined: Mar 2017
Posts: 11,906
Likes: 4,479
From: Virginia
Seriously, if budget is a concern, save up for 18" wheels and tires and swap when you need them in a year or three.
Le Mans Master
Joined: Aug 2010
Posts: 5,339
Likes: 546
From: Central Texas
I'm getting ready to add the following to my Summit Racing shopping cart for my 1978
https://www.summitracing.com/parts/are-vn10558061b
Wheel, Torq-Thrust D, Aluminum, Matte Black, 15 in. x 8.0 in., 5 x 4.75 in. Bolt Circle, 4.500 in. Backspace
Will they fit without any issues? Also, if someone could provide me with a link for the appropriate lug nuts in black I would greatly appreciate it.
Thanks in advance!
https://www.summitracing.com/parts/are-vn10558061b
Wheel, Torq-Thrust D, Aluminum, Matte Black, 15 in. x 8.0 in., 5 x 4.75 in. Bolt Circle, 4.500 in. Backspace
Will they fit without any issues? Also, if someone could provide me with a link for the appropriate lug nuts in black I would greatly appreciate it.
Thanks in advance!
I suggest that you save your money for a larger diameter set of wheels and tires. I've read a bunch of posts about the improvement of handling and ride quality with the larger set ups.
I was a Corvette Rookie when I ordered the 15" wheels and tires. If I knew then what I know now I would have gone with the larger wheel set up.
Craig
Thread Starter
Instructor
Joined: Apr 2018
Posts: 174
Likes: 17
From: Philadelphia, PA
Okay I'm back on the wheel wagon again. Will there be any issue on my 1978 with this set up?
Torq Thrust M 17x7 - 17x8 5x4.75 I believe the bs is 4
Tires- BFG Sport Comp 235/45R17
The 17" wheels should help in keeping my RPM's down a bit, due to fact I'm installing a 3:55 rear from Duntov tomorrow. I don't do much hwy driving.
Torq Thrust M 17x7 - 17x8 5x4.75 I believe the bs is 4
Tires- BFG Sport Comp 235/45R17
The 17" wheels should help in keeping my RPM's down a bit, due to fact I'm installing a 3:55 rear from Duntov tomorrow. I don't do much hwy driving.
Last edited by tviscomi; Jun 7, 2018 at 06:53 AM.
Le Mans Master
Joined: Mar 2001
Posts: 5,738
Likes: 644
From: Lincoln, CA
They don't make a 4" BS in that size. I ordered American Racing is a custom two piece with correct backspace.
http://www.americanracing.com/wheel/...-torq-thrust-m
http://www.americanracing.com/wheel/...-torq-thrust-m
Le Mans Master
Joined: Mar 2001
Posts: 5,738
Likes: 644
From: Lincoln, CA
Thread Starter
Instructor
Joined: Apr 2018
Posts: 174
Likes: 17
From: Philadelphia, PA
They don't make a 4" BS in that size. I ordered American Racing is a custom two piece with correct backspace.
http://www.americanracing.com/wheel/...-torq-thrust-m
http://www.americanracing.com/wheel/...-torq-thrust-m
https://www.summitracing.com/parts/are-ar105m7761b
Le Mans Master
Joined: Mar 2001
Posts: 5,738
Likes: 644
From: Lincoln, CA
According to Summit:
https://www.summitracing.com/parts/are-ar105m7761b
https://www.summitracing.com/parts/are-ar105m7761b