| The 8th Gen Riviera Resource |
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| FAQ: Wheel & Tire, Lug, Bolt Pattern, Offset, Center Bore Info | |
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+32chitown_riv98 Abaddon 95RivieraVino matt270avian joshuadalegrimes Rivnut 98riv al_roethlisberger highwaywarrior LARRY70GS charlieRobinson ghpcnm Jelorian Jamax sqrivi norsky86 ewolfe0050 robotennis61 Rickw deekster_caddy 1998 Riv Jack the R Chicken TonySmooth89 texasfan010 turtleman Mr.Riviera jrocha ¤DoughBoy¤ okiedrifter racinfan AA 36 posters | |
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AA Administrator
Name : Aaron Age : 47 Location : C-bus, Ohio Joined : 2007-01-13 Post Count : 18452 Merit : 252
| Subject: Re: FAQ: Wheel & Tire, Lug, Bolt Pattern, Offset, Center Bore Info Sat May 18, 2013 11:27 pm | |
| Those should fit just fine. +42mm offset would move the wheel inward 10mm compared to stock. _________________ '05 GTO 6.0L • 6-spd • 95k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26'95 Celica GT 2.2L • 5-spd • 165k miles • 0-60: yes'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30 3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch^^^ SOLD ^^^ '70 Ninety-Eight Holiday Coupe 455cid • 116k miles^^^ SOLD ^^^ | |
| | | LARRY70GS Aficionado
Name : Larry Age : 68 Location : Oakland Gardens, NY Joined : 2007-01-23 Post Count : 2193 Merit : 150
| Subject: Re: FAQ: Wheel & Tire, Lug, Bolt Pattern, Offset, Center Bore Info Sat May 18, 2013 11:33 pm | |
| - 98riv wrote:
- al_roethlisberger wrote:
Looks like the 06-11 Lucerne 17x7 wheels may fit too. Tirerack says they are 5x115 and the backspacing is similar to the Riviera spec. I was looking at these Rims and I believe they have a 42mm offset compared to our 32mm offset. They have the same 5x115 bolt pattern and are 7 inches wide. Would there be any problems running this rim? 10 mm is less than 1/2" The stock Riv wheels are 6" wide, correct? A 7" wheel would need about 1/2" more back spacing or offset. Sounds about right. _________________ 98 Riviera SC3800 All stock except gutted air box. 1970 Buick GS455 Stage1, TSP built 470BBB, 602HP/589TQ Best MPH, 116.06 MPH, Best ET, 11.54 https://www.youtube.com/watch?v=UHCda-t_Jls https://www.youtube.com/watch?v=sfT2tEO4XcU
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| | | 98riv Moderator
Location : USA Joined : 2007-01-14 Post Count : 995 Merit : 30
| Subject: Re: FAQ: Wheel & Tire, Lug, Bolt Pattern, Offset, Center Bore Info Wed May 22, 2013 7:51 pm | |
| Thanks! _________________ 1998 Supercharged Riviera - Custom CAI, Alpine spx-13ref, Infinity 6x9's, Alpine 4 Channel Amp, Kicker KX3, Silverstars, STB, Hawk Brake Pads, Monroe Air Shocks, KYB GR2
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| | | Rivnut Member
Name : Ed Raner Age : 77 Location : NE Kansas Joined : 2011-11-30 Post Count : 67 Merit : 6
| Subject: Tire / wheel sizes Mon Aug 12, 2013 10:57 pm | |
| Just out of curiosity, what tire/wheel combinations are you running other than the stock 225/60R15?
Got pictures of them? How does this affect the speedometer, MPG, etc.? | |
| | | joshuadalegrimes Addict
Name : josh Age : 43 Location : harrodsburg, ky Joined : 2012-09-02 Post Count : 501 Merit : 13
| Subject: Re: FAQ: Wheel & Tire, Lug, Bolt Pattern, Offset, Center Bore Info Mon Aug 12, 2013 11:27 pm | |
| 15? mine came with 16s. its 225/60r16 i think. i want 18s and somewhere here is a thing aa made of the "upsize" calculations to keep the spedo in check | |
| | | matt270avian Expert
Name : Matt Age : 28 Location : Frederick, MD Joined : 2012-01-15 Post Count : 2681 Merit : 54
| Subject: Re: FAQ: Wheel & Tire, Lug, Bolt Pattern, Offset, Center Bore Info Tue Aug 13, 2013 12:05 am | |
| You can get those measurements pretty much everywhere. IMO 17's look perfect, and they should be 16's (at least mine were). | |
| | | AA Administrator
Name : Aaron Age : 47 Location : C-bus, Ohio Joined : 2007-01-13 Post Count : 18452 Merit : 252
| Subject: Re: FAQ: Wheel & Tire, Lug, Bolt Pattern, Offset, Center Bore Info Tue Aug 13, 2013 12:17 am | |
| _________________ '05 GTO 6.0L • 6-spd • 95k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26'95 Celica GT 2.2L • 5-spd • 165k miles • 0-60: yes'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30 3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch^^^ SOLD ^^^ '70 Ninety-Eight Holiday Coupe 455cid • 116k miles^^^ SOLD ^^^ | |
| | | AA Administrator
Name : Aaron Age : 47 Location : C-bus, Ohio Joined : 2007-01-13 Post Count : 18452 Merit : 252
| Subject: Re: FAQ: Wheel & Tire, Lug, Bolt Pattern, Offset, Center Bore Info Mon Sep 16, 2013 7:51 pm | |
| NEWS FLASH: New Cadillac ATS 5x115 bolt pattern. Initial searching at Tire Rack indicates the offset for ATS is similar to Riviera (40-45mm). This may be a good thing for Riviera owners looking for wheels with some fresh style! _________________ '05 GTO 6.0L • 6-spd • 95k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26'95 Celica GT 2.2L • 5-spd • 165k miles • 0-60: yes'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30 3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch^^^ SOLD ^^^ '70 Ninety-Eight Holiday Coupe 455cid • 116k miles^^^ SOLD ^^^ | |
| | | al_roethlisberger Junkie
Name : Al Roethlisberger Age : 55 Location : Sanford, NC Joined : 2013-03-12 Post Count : 960 Merit : 24
| Subject: Re: FAQ: Wheel & Tire, Lug, Bolt Pattern, Offset, Center Bore Info Mon Sep 16, 2013 8:09 pm | |
| - AA wrote:
- NEWS FLASH: New Cadillac ATS 5x115 bolt pattern. Initial searching at Tire Rack indicates the offset for ATS is similar to Riviera (40-45mm). This may be a good thing for Riviera owners looking for wheels with some fresh style!
No doubt, will hopefully drive the wheel manufacturers to add more options The ATS is going to be a hit, and lots of owners will want to customize the wheels. And given the ATS' performance credibility, we may have more performance (forged light weight, strong and maybe less expensive due to volume) options as well. Al | |
| | | 98riv Moderator
Location : USA Joined : 2007-01-14 Post Count : 995 Merit : 30
| Subject: Re: FAQ: Wheel & Tire, Lug, Bolt Pattern, Offset, Center Bore Info Tue Mar 04, 2014 8:17 pm | |
| Here is another website that I found to compare tire sizes and how much it could change your speedometer. http://tire-size-conversion.com/tire-size-calculator/ _________________ 1998 Supercharged Riviera - Custom CAI, Alpine spx-13ref, Infinity 6x9's, Alpine 4 Channel Amp, Kicker KX3, Silverstars, STB, Hawk Brake Pads, Monroe Air Shocks, KYB GR2
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| | | 95RivieraVino Special
Name : Cory Joined : 2014-05-11 Post Count : 9 Merit : 0
| Subject: Will this Wheel fit? Wed Jun 11, 2014 9:26 pm | |
| Im looking at the Enkei Lxm 18x8 or 18x8.5. Obviously with the right 5x115 wheel pattern. And a +38 offset. Will it fit my 95 Rivi? | |
| | | AA Administrator
Name : Aaron Age : 47 Location : C-bus, Ohio Joined : 2007-01-13 Post Count : 18452 Merit : 252
| Subject: Re: FAQ: Wheel & Tire, Lug, Bolt Pattern, Offset, Center Bore Info Wed Jun 11, 2014 10:33 pm | |
| I think the 8" wide wheel should work with +38mm offset. For 8.5" wide, +38mm would probably work, too. There is a chance of strut rub with 8.5" wide wheels and certain tires, with larger offsets. I don't think +38mm is too large, but I haven't tried it.
Also check the center bore measurement. Read the early pages of this thread for info re: hub-centric rings. Good luck. _________________ '05 GTO 6.0L • 6-spd • 95k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26'95 Celica GT 2.2L • 5-spd • 165k miles • 0-60: yes'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30 3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch^^^ SOLD ^^^ '70 Ninety-Eight Holiday Coupe 455cid • 116k miles^^^ SOLD ^^^ | |
| | | 95RivieraVino Special
Name : Cory Joined : 2014-05-11 Post Count : 9 Merit : 0
| Subject: Re: FAQ: Wheel & Tire, Lug, Bolt Pattern, Offset, Center Bore Info Wed Jun 11, 2014 11:08 pm | |
| Where would I get hub centric rings specific to that wheel? Also the wheels are 245/45. | |
| | | matt270avian Expert
Name : Matt Age : 28 Location : Frederick, MD Joined : 2012-01-15 Post Count : 2681 Merit : 54
| Subject: Re: FAQ: Wheel & Tire, Lug, Bolt Pattern, Offset, Center Bore Info Fri Feb 13, 2015 12:56 pm | |
| Don't know whether to put this in here or in the wheels that look good thread, so mods can move this if they want.
I'm looking at a set of 17" G35 rims that are pretty well priced. They're 5x114.3, but everything I've read says people run that size without issue on Grand Prixs and such. My main concern is that the center bore on the Infiniti rims is 66.1, while ours is 70.3. I tried looking for a spacer that would take our size down to the 66.1, but I couldn't find anything. I don't know much about spacers so I might just be looking in the wrong places. If such a spacer doesn't exist, could I just have the center bored out to 70.3 on the Infiniti rims? | |
| | | AA Administrator
Name : Aaron Age : 47 Location : C-bus, Ohio Joined : 2007-01-13 Post Count : 18452 Merit : 252
| Subject: temp Fri Feb 13, 2015 1:02 pm | |
| I don't think you can do down in bore size using hubcentric rings; you can only go bigger. For example, if the G35 wheels had a 73 mm bore, you could easily fit to our hubs. Machining the wheel center is the way to go, should be no problem for a machine shop or competent wheel repair business. Here's the alum bore spacer used in my Enkei wheels. Their bore is 72.62 mm ID. _________________ '05 GTO 6.0L • 6-spd • 95k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26'95 Celica GT 2.2L • 5-spd • 165k miles • 0-60: yes'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30 3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch^^^ SOLD ^^^ '70 Ninety-Eight Holiday Coupe 455cid • 116k miles^^^ SOLD ^^^ | |
| | | matt270avian Expert
Name : Matt Age : 28 Location : Frederick, MD Joined : 2012-01-15 Post Count : 2681 Merit : 54
| Subject: Re: FAQ: Wheel & Tire, Lug, Bolt Pattern, Offset, Center Bore Info Fri Feb 13, 2015 1:15 pm | |
| - AA wrote:
- Machining the wheel center is the way to go, should be no problem for a machine shop or competent wheel repair business.
I just called the machine shop up the road. The lady thinks he can do it, but she's going to have him call me back. I'm not about to ghetto rig it and take a router to them in hopes of making a perfect circle. | |
| | | AA Administrator
Name : Aaron Age : 47 Location : C-bus, Ohio Joined : 2007-01-13 Post Count : 18452 Merit : 252
| Subject: Re: FAQ: Wheel & Tire, Lug, Bolt Pattern, Offset, Center Bore Info Fri Feb 13, 2015 1:38 pm | |
| Should be easy peezy job for machine shop. Be sure to check for any interfering parts, and only machine the needed depth to install on your hub. Maybe buy an extra hub to measure from. _________________ '05 GTO 6.0L • 6-spd • 95k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26'95 Celica GT 2.2L • 5-spd • 165k miles • 0-60: yes'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30 3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch^^^ SOLD ^^^ '70 Ninety-Eight Holiday Coupe 455cid • 116k miles^^^ SOLD ^^^ | |
| | | matt270avian Expert
Name : Matt Age : 28 Location : Frederick, MD Joined : 2012-01-15 Post Count : 2681 Merit : 54
| Subject: Re: FAQ: Wheel & Tire, Lug, Bolt Pattern, Offset, Center Bore Info Fri Feb 13, 2015 2:01 pm | |
| - AA wrote:
- Should be easy peezy job for machine shop. Be sure to check for any interfering parts, and only machine the needed depth to install on your hub. Maybe buy an extra hub to measure from.
I have an extra hub I can give him for measurements. However, in my searches I found something entirely different.... http://www.ebay.com/itm/271703682943 Hmmmmmmmmmm....... They're like a half hour away, cheaper, bigger, wider, and will just fit without any worries....... | |
| | | AA Administrator
Name : Aaron Age : 47 Location : C-bus, Ohio Joined : 2007-01-13 Post Count : 18452 Merit : 252
| Subject: Re: FAQ: Wheel & Tire, Lug, Bolt Pattern, Offset, Center Bore Info Fri Feb 13, 2015 2:10 pm | |
| Or there's that! _________________ '05 GTO 6.0L • 6-spd • 95k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26'95 Celica GT 2.2L • 5-spd • 165k miles • 0-60: yes'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30 3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch^^^ SOLD ^^^ '70 Ninety-Eight Holiday Coupe 455cid • 116k miles^^^ SOLD ^^^ | |
| | | charlieRobinson Expert
Name : Charlie Age : 39 Location : Knoxville, TN Joined : 2011-05-17 Post Count : 3924 Merit : 31
| Subject: Re: FAQ: Wheel & Tire, Lug, Bolt Pattern, Offset, Center Bore Info Mon Jun 01, 2015 1:42 pm | |
| How many of yall are running 8" wheel width?
I am looking at wheels and tires and seeing options for 7 and 8 with a 17" wheel.
I am thinking wider = more grip so I'm leaning towards an 8.
Please advise. Thank you | |
| | | Abaddon Expert
Name : Scott Location : Macomb, Michigan Joined : 2010-02-24 Post Count : 4315 Merit : 185
| Subject: Re: FAQ: Wheel & Tire, Lug, Bolt Pattern, Offset, Center Bore Info Mon Jun 01, 2015 1:44 pm | |
| My American Racing wheels are 8" wide. With the tires mounted, they're about 9-1/2" wide.... There's room for more too. | |
| | | charlieRobinson Expert
Name : Charlie Age : 39 Location : Knoxville, TN Joined : 2011-05-17 Post Count : 3924 Merit : 31
| Subject: Re: FAQ: Wheel & Tire, Lug, Bolt Pattern, Offset, Center Bore Info Mon Jun 01, 2015 1:50 pm | |
| - Abaddon wrote:
- My American Racing wheels are 8" wide. With the tires mounted, they're about 9-1/2" wide....
There's room for more too. Room for more you say? I am trying to get it right the first time. Not trying to drop ~$1k and not have it perfect! Will you help point me in the right direction? I was looking at 17" wheels as light as possible with 8" width. Should I be looking for 9" width wheels? | |
| | | matt270avian Expert
Name : Matt Age : 28 Location : Frederick, MD Joined : 2012-01-15 Post Count : 2681 Merit : 54
| Subject: Re: FAQ: Wheel & Tire, Lug, Bolt Pattern, Offset, Center Bore Info Mon Jun 01, 2015 1:57 pm | |
| Charlie, just a suggestion since I know you like the biggest and the best.
Why not get a set of 18" wheels with a 32mm or less offset and beat me to the CTS-V caliper upgrade? The FRONT rims off of the GXP are a great option for this....... | |
| | | Abaddon Expert
Name : Scott Location : Macomb, Michigan Joined : 2010-02-24 Post Count : 4315 Merit : 185
| Subject: Re: FAQ: Wheel & Tire, Lug, Bolt Pattern, Offset, Center Bore Info Mon Jun 01, 2015 2:03 pm | |
| - charlieRobinson wrote:
Room for more you say? I am trying to get it right the first time. Not trying to drop ~$1k and not have it perfect! Will you help point me in the right direction?
I was looking at 17" wheels as light as possible with 8" width.
Should I be looking for 9" width wheels? Your options for a 17x9" wheel are going to be EXTREMELY limited. Most 17x9" wheels are RWD dedicated, or they have the wrong offset. I'd have to look at what the offset of mine are. I don't remember. I've got the 245/45's on there now. I think the next set of tires are going to be 255/45's if I can find them. Tire options get minimal when you start getting into "weird" sizes. | |
| | | charlieRobinson Expert
Name : Charlie Age : 39 Location : Knoxville, TN Joined : 2011-05-17 Post Count : 3924 Merit : 31
| Subject: Re: FAQ: Wheel & Tire, Lug, Bolt Pattern, Offset, Center Bore Info Mon Jun 01, 2015 2:07 pm | |
| - matt270avian wrote:
- Charlie, just a suggestion since I know you like the biggest and the best.
Why not get a set of 18" wheels with a 32mm or less offset and beat me to the CTS-V caliper upgrade? The FRONT rims off of the GXP are a great option for this....... I want to go as light as possible with as much grip as possible. That happy medium is where I want to be. 18" wheels arent out of the question but I have been looking at 17s mostly. I am not very interested in the CTSV calipers. Fbody calipers should do me just fine. | |
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