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C6 Corvette ZR1 & Z06General info about GM’s Corvette Supercar, LS9 Corvette Technical Info, Performance Upgrades, Suspension Setup for Street or Track
I have a 2013 Z06 with RPM stage 4 Package
I had my new tires mounted today on my Signature SV501 wheels , the shop used Hunter Revolution Touch-less tire machine to mount the tires with no damage to my new wheels,I watched the shop mount the tires and it went very quick and smooth .I wanted the share the specs and some pictures .
My Factory Cup wheels are 20x12 with +59 offset rear and 19x10 with + 40 offset front ,Factory tires are 335x25x20 Michelin run flats rear and 285x30x19 Michelin run flats front .The SV 501 wheels are 19x13 with +56 offset rear and 19x11 with +38 offset front ,tires are 345x30x19 Michelin Super Sports rear and 295x30x19 Michelin Super Sport in the front .
Weight -factory Cup Wheels and tires 54.4 lbs in front and 61.6 lbs in the rear .....OD for rear tire 335x25x20 is 26.6" Front tire OD 285x30x19 is 25.8"
Weight -SV501 wheels and tires 53.0 lbs in front and 57.8 lbs in the rear .....OD for rear tire345x30x19 is 27.2” Front tire 295x30x19 is 26”
Total savings 10.4 lbs .....1.4 lbs for each front and 3.8lbs for each rear
I will clean and coat the new wheels and tires and then mount them up with pictures
Looks great to me. I have 2 sets of aftermarket wheels I use. Both shod with Toyo R888R's. Forgeline 18 incher's with 335 rears are a little lighter at 50.5 lbs front and 54 lbs rear but those have smaller diameters with 25 inches for the front and 25.9 inches on the back. Probably the biggest reason for the weight difference alongside the weight savings of monobloc forged rims. Side benefit is it gives me a 5% gearing advantage compared to the 345/30-19's. My 19 inch set of MMR's have the same size tires as yours matching the overall diameters but the weights are slightly heavier at 53.5 lbs for the front and 60 lbs for the rear (the Toyo 345's are very wide compared to the Michelin's despite what the published specs seem to say). According to my math on the offsets your rears are about 1/8 inch farther out than mine and the fronts are almost the same amount more inboard than mine.
Congratulations on being thorough with your specifications. I don't often see that. Look forward to pictures on your car. One of my cars is IO as well, a 2011 Z07.
Here it is at Daytona in Corvette Coral for the Rolex 24 hours in January.
Nice, looks great.
Tires/wheels are a mod which pays-back big every single time one approaches car for a cruise.
OBTW I'm w/ others re complete alignment, using Pfadt specs The Way to go.
Have used Pfadt street-perf spec on the 4 new sets I'd installed on my '08 over the years, whether needed or not.
Damned tires are simply too pricey to not spend an extra $100. YMMV
Just the way you helped me load them. The 4th is awaiting travel by Sea in late May. It was great spending time with you and your friends. If Marc has any interest in that 1976 red coupe let me know and I will try to track it down.
Keith
My car is Torch Red it does look more IO in the pictures ,thats ok IO is one of my Favorite colors .
The tire with the wear on the inside is off a car with 25k miles , I guess the factory sets the Z06 with alignment specs for the track and thats why the tire wears on the inside is so bad ???????????
I added mores pics to show the fender to tire clearance ,so far the car rides great with the new wheel/tire package and Jim Mero’s Mag Ride tweak ,no clearance issues .
Looks sweet! Is it lowered at all? How does the offset look from the back/top?
Thanks
As far as I know it is not lowered , I purchased the car from a dealer ,brand new in 2013,and had it shipped to my home ,unless the dealer lowered the car ,the suspension has not been tampered with
Nice, looks great.
Tires/wheels are a mod which pays-back big every single time one approaches car for a cruise.
OBTW I'm w/ others re complete alignment, using Pfadt specs The Way to go.
Have used Pfadt street-perf spec on the 4 new sets I'd installed on my '08 over the years, whether needed or not.
Damned tires are simply too pricey to not spend an extra $100. YMMV
Thanks
I need to look into the alignment issue , I heard the factory set the cars up with a track alignment and thats causes the inside front tire wear
Looks great to me. I have 2 sets of aftermarket wheels I use. Both shod with Toyo R888R's. Forgeline 18 incher's with 335 rears are a little lighter at 50.5 lbs front and 54 lbs rear but those have smaller diameters with 25 inches for the front and 25.9 inches on the back. Probably the biggest reason for the weight difference alongside the weight savings of monobloc forged rims. Side benefit is it gives me a 5% gearing advantage compared to the 345/30-19's. My 19 inch set of MMR's have the same size tires as yours matching the overall diameters but the weights are slightly heavier at 53.5 lbs for the front and 60 lbs for the rear (the Toyo 345's are very wide compared to the Michelin's despite what the published specs seem to say). According to my math on the offsets your rears are about 1/8 inch farther out than mine and the fronts are almost the same amount more inboard than mine.
Congratulations on being thorough with your specifications. I don't often see that. Look forward to pictures on your car. One of my cars is IO as well, a 2011 Z07.
Here it is at Daytona in Corvette Coral for the Rolex 24 hours in January.
Thanks for the tire and wheel information ,Your IO 2011 ZO7 has to be one the best C6 Corvettes ever !
Pictures down the side and from the top look great. Sure looks like you nailed it. Jim does a great job with his shock adjustments. Really makes a difference when the road surface gets bumpy.
I mistook your color for IO. In the right light they really look close. Enjoy the new look. Big improvement over the stock offsets.
04-02-2021, 12:19 PM
New Tires and Wheels PICTURES and SPECS
