Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com - View Single Post - Lowered 1.25 and want a dedicated track wheel set

Tristahn · 10-02-2017, 12:34 PM

I have a 2011 SS running 1.25 lowered BMR springs and a bunch of BMR suspension mods. I've upgraded rotors, pads, lines and fluid for the track and the car delivers 675 to the wheels. My current 20 inch NT05's are manageable (315 rear and 275 front) but I'd like to get a dedicated set of wheels and tires for track days. I need advice before I buy on sizes, offsets and potential spacing. Here's what I'm leaning towards so far:

19x11ET25 Apex PS-7's on all 4 corners
Nitto NT01 305/30ZR19 (102Y) XL on all 4 wheels

18x11ET25 Apex PS-7's on all 4 corners
Nitto NT01 305/35ZR18 101W on all 4 wheels

What I notice is that tire widths are about the same as my current rear setup at 12.4 inches but I all cases the tire diameter shrinks considerably by about 2.5 inches. Is this what most people are doing or am I missing something? This will alter top speed and the speedometer accuracy but will it change any other calculated items?

Should I be running 18 inch wheels instead of the 19's to allow for greater tire selection down the road?

Current front wheel is 10.79 inches wide. Will the 12.3 inch wide 305's rub because of my 1.25 inch drop?

Will I need spacers or adapters of any kind to mount these?

Thanks in advance for the feedback and shared wisdom.

10-02-2017, 12:34 PM	#1
Tristahn 2011 2SS LS3 Auto Drives: 2011 Camaro SS Join Date: Feb 2015 Location: Phoenix, AZ Posts: 63	Lowered 1.25 and want a dedicated track wheel set I have a 2011 SS running 1.25 lowered BMR springs and a bunch of BMR suspension mods. I've upgraded rotors, pads, lines and fluid for the track and the car delivers 675 to the wheels. My current 20 inch NT05's are manageable (315 rear and 275 front) but I'd like to get a dedicated set of wheels and tires for track days. I need advice before I buy on sizes, offsets and potential spacing. Here's what I'm leaning towards so far: 19x11ET25 Apex PS-7's on all 4 corners Nitto NT01 305/30ZR19 (102Y) XL on all 4 wheels 18x11ET25 Apex PS-7's on all 4 corners Nitto NT01 305/35ZR18 101W on all 4 wheels What I notice is that tire widths are about the same as my current rear setup at 12.4 inches but I all cases the tire diameter shrinks considerably by about 2.5 inches. Is this what most people are doing or am I missing something? This will alter top speed and the speedometer accuracy but will it change any other calculated items? Should I be running 18 inch wheels instead of the 19's to allow for greater tire selection down the road? Current front wheel is 10.79 inches wide. Will the 12.3 inch wide 305's rub because of my 1.25 inch drop? Will I need spacers or adapters of any kind to mount these? Thanks in advance for the feedback and shared wisdom. __________________ 2011 2SS LS3 Auto Blue Camaro Rotofab CAI, Magnuson TVS 2300 & OD cog, L99> now LS3 with custom cam, 1000 cc injectors for E85, flexfuel & secondary fuel pump, ZL1 tank fuel pump, ADM FPCM, Kooks LT headers with high-flow cats, Magnaflow 3" exhaust, catch can, Alkycontrol methanol system, Z28 wheels with Nitto NT05 tires, BMR cradle bushings, sway bars, trailing arms, adjustable toe rods, end links, lower control arms, and 1.25 drop springs, Aero force gauge, wideband sensor gauge in two-hole pillar pod. E85 - 675 HP/643 Tq & 91 - 604 HP/579 Tq, 10.6s ET on MT slicks at 132 mph.