12" wheel up front? - ZR-1 Net Registry Forums

Dime · 06-21-2016

Can a 12" wide wheel be run upfront with say something like a 325, 335 tire, while the fronts low enough to where the tires just about to start tucking under the fender?

G8nightman · 06-21-2016

Try it take off your rear wheel and put it up front Im running 295's up front.

Paul Workman · 06-21-2016

I've read some posts regarding running 315's on the front; track applications. I don't recall what offset was tho. But, someone here should know...

edram454 · 06-21-2016

up until recently I was running 315's up front using aftermarket amolds with 50mm offset. I had 315's on all four wheels. I will tell you one thing, it changes the ride drastically. If you are looking for handling over ride quality then go for it. the ride is much harsher and you will be adding weight because the wheels and tires weigh much more than the regular front rims and tires. I bought original amolds and put the regular size 275's up front and my car rides so much better and much less noisy. 315's should only be used if handling and tight turns are critical.

ed ramos #3028

RussMcB · 06-21-2016

This doesn't add much to this discussion, but I know 315's on 11" rear sawblades will not work on the front. I ignorantly thought I could run the same size wheels and track tires on all for corners but it didn't work. On the race track I had tire rub in the front (not surprisingly). The rear wheels with stock offset mounted on the front stuck out too far.

I do run the following on the front of my car, and they fit, work well:
- My front street tires are 285's on aftermarket 11" A-molds.
- My front track tires are 315's on 9" A-molds.

Locobob · 06-22-2016

I've never seen 12in but I have seen some people run 11in Grandsport wheels and tires up front.

BigJohn · 06-22-2016

I wouldn't put my 12 inch wide rims on the front of my car!

batchman · 06-23-2016

I run 11's in front, either clone A-molds or CCWs, with 315s on a somewhat lowered car. I get slight rubs on the wheel well and (big) sway bar at full lock but that's running Hoosier DOTs which are kind of cantilevered but more like "broad shoulder" tread. I would not go any wider on those tires but suppose some street stuff at 325 might fit. I know one guy with a C4 running 4x335s but I think his ride is set high in order to clear and honestly don't know how he can avoid the rubbing I get, or if he does.

The grip is, um, pretty good...

HTH,
- Jeff

06-21-2016	#1
Dime Join Date: Feb 2011 Location: Vicksburg, MS Posts: 135	12" wheel up front? Can a 12" wide wheel be run upfront with say something like a 325, 335 tire, while the fronts low enough to where the tires just about to start tucking under the fender? __________________ [B][U]1991 No. 519[/U][/B]

06-21-2016	#2
G8nightman Join Date: Dec 2007 Location: NYC Posts: 1,182	Re: 12" wheel up front? Try it take off your rear wheel and put it up front Im running 295's up front. __________________ 90 Chevy ZR1 LPE #2315 'SOLD' 90 Chevy ZR1 LPE #2774 'SOLD' 91 Chevy ZR1 Callaway aerobody 91 Chevy ZR1 #1512 91 Chevy ZR1 #951 95 Chevy ZR1 #338 'SOLD' 91 BMW 850i 94 BMW 850csi 95 BMW 850csi 94 Lotus Esprit S4 07 Benz CLS550 06 BMW M5 "SOLD"

06-21-2016	#4
edram454 Join Date: Nov 2013 Location: .. Posts: 693	Re: 12" wheel up front? up until recently I was running 315's up front using aftermarket amolds with 50mm offset. I had 315's on all four wheels. I will tell you one thing, it changes the ride drastically. If you are looking for handling over ride quality then go for it. the ride is much harsher and you will be adding weight because the wheels and tires weigh much more than the regular front rims and tires. I bought original amolds and put the regular size 275's up front and my car rides so much better and much less noisy. 315's should only be used if handling and tight turns are critical. ed ramos #3028 __________________ EDRAM454 1990 #3028..siamese ported plen/hous/SGC/fidanza/DRM LTHeaders/DRM roll cage/camber rod/drilled slot rotors hawk track pads/grand sport calipers/full corsa exhaust/Hurst/NO cats/custom SGC chip/cbeamplate/315's on all 4/intake water plugged/smog removed..RC injectors/LED lights..SHOULD NOT HAVE PUT ALL THE MONEY IN IT.. SOLD.

06-21-2016	#5
RussMcB Join Date: Jan 2015 Location: Marietta, GA USA Posts: 1,160	Re: 12" wheel up front? This doesn't add much to this discussion, but I know 315's on 11" rear sawblades will not work on the front. I ignorantly thought I could run the same size wheels and track tires on all for corners but it didn't work. On the race track I had tire rub in the front (not surprisingly). The rear wheels with stock offset mounted on the front stuck out too far. I do run the following on the front of my car, and they fit, work well: - My front street tires are 285's on aftermarket 11" A-molds. - My front track tires are 315's on 9" A-molds. __________________ Russ McBride, [COLOR="Red"]Car Sold 8/2020[/COLOR] #1635, Marietta, GA USA, 1991 ZR-1, #766 (bought 1/1/2015) MS3-Pro, OBX, SW X-Pipe, Borla, Hurst, SLP, Goodyear F1 GS-D3, Kenwood. HOTB 2016Q3 [IMG]http://zr1.net/forum/picture.php?albumid=316&pictureid=2873[/IMG] [IMG]http://zr1.net/forum/picture.php?albumid=336&pictureid=2985[/IMG]

06-22-2016	#6
Locobob Join Date: Jan 2004 Location: Portland, OR Posts: 1,057	Re: 12" wheel up front? I've never seen 12in but I have seen some people run 11in Grandsport wheels and tires up front. __________________ Robert ZR-1 Net Registry Oregon State Director 91 ZR-1 #431 Black/Black LPE 368

06-21-2016	#3
Paul Workman Join Date: Nov 2007 Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri Posts: 6,493	Re: 12" wheel up front? I've read some posts regarding running 315's on the front; track applications. I don't recall what offset was tho. But, someone here should know... __________________ Good carz, good food, good friendz = the best of timez! 90 #1202 "FBI" top end ported & relieved Cam timing by "Pete the Greek" Sans secondaries Chip & dyno tuning by Haibeck Automotive SW headers, X-pipe, MF muffs Former Secretary, ZR-1 Net Registry

06-22-2016	#7
BigJohn Join Date: Feb 2012 Location: Ledyard,CT Posts: 7,994	Re: 12" wheel up front? I wouldn't put my 12 inch wide rims on the front of my car!

06-23-2016	#8
batchman Join Date: Jun 2009 Location: I live at Devens, one run at a time Posts: 455	Re: 12" wheel up front? I run 11's in front, either clone A-molds or CCWs, with 315s on a somewhat lowered car. I get slight rubs on the wheel well and (big) sway bar at full lock but that's running Hoosier DOTs which are kind of cantilevered but more like "broad shoulder" tread. I would not go any wider on those tires but suppose some street stuff at 325 might fit. I know one guy with a C4 running 4x335s but I think his ride is set high in order to clear and honestly don't know how he can avoid the rubbing I get, or if he does. The grip is, um, pretty good... HTH, - Jeff __________________ [I]91 ZR-1 #1840, autocrossing in SCCA BSP. FIC S/S's DRM chip/Watson/Borla/lid/LW batt&headlights, springs, shocks, pads & lines, quick rack & Turn One, camber brace, 32/22mm sways, A/C halfway deleted 17x11 & 12 CCW's, 315 & 335 Hoosier A6s [/I]