Quote:
Originally Posted by sr71bb
OK Here are some pics of SM10's along with some pics of the actual weight of the SM10 with MS 4S 305 30 19 mounted including TPS sensors (53.4 pounds). Another pic shows the STOCK 2019 SS 20 x 9.5 wheel and MS 4S 285 35 20 mounted WITH TPS sensor (55.8 pounds) and ALSO the front Stock SS wheel 20 x 8.5 and GY 245 40 20's with TPS sensors (55 pounds).
Notes: the setup you see DOES NOT require a 5MM spacer because part of the strut mount was ground down about 6MM to allow for proper clearance. Negative camber is 1.5 degrees on EACH wheel and that for the most part eliminated the top tire poke (see pics).
The suspension is STOCK SS WITHOUT MAG RIDE. Wheel gap is roughly 2 inches currently which will be reduced to roughly 1.25 inches when the SG3 suspension is installed. This is the WIDEST rotatable combination that can be run currently on an SS. Ground clearance is roughly 6.5 inches in FRONT of the rear wheels and 5 inches in the BACK of the front wheels.
The 305 30 19 tires mounted on the 19 x 10.5 rims give you roughly 11.5 inches of rubber on the ground (section width is of course wider to the tune of about 12 inches). It is doubtful you could run a wider tire on the front without having alot of top tire poke regardless of how much negative camber you used.
Black gorilla locks were used and the stock APEX wheel cap was painted a satin black to match wheel. A big shout out to AMP (clearancing), APEX (quick delivery and superb support) and DISCOUNT TIRE (no installation damage).
I added the last pic showing where AMP modded the strut to get the necessary clearance. It doesnt take much here about 6MM.
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I wanted to update this thread to provide more information in regards to ground clearance using this combination AFTER I had my SG3 suspension installed. GM documents that you should see about a 1/2 inch drop vs. STOCK suspension settings. The following comparisons were done using the THESE wheels and tires so I am lower than stock anyway because of the overall diameter of the 19 inch wheels and 305 30 19 tires.
In doing the measurements, I have 4 1/4" of ground clearance just AFTER the front tires (compared to stock 5") and 6" of ground clearance (compared to stock 6.5") just in FRONT of the rear tires. IF you use the old finger method, I have two fingers of clearance ABOVE the top of the rear tire and fenderwheel and slightly LESS than two fingers clearance above the top of the FRONT tire. That makes sense since the ACTUAL drop AFTER the SG3 suspension upgrade was 3/4" on the front and 1/2" on the rear.
I might also add that I upgraded the brake package on the car to ZL1 1LE Rotors and Calibers and I can report that even using the 15.3" front rotors and bigger SIX piston calibers, there are NO interference issues AT ALL with these wheels. Another note of interest in that the ZL1 1LE REAR calibers and rotors look to be nearly identical to the stock SS setup. Of course I wasnt expecting interfence issues either since APEX is great about testing for these things up front.
I will update with new pictures soon.