Planning to remove factory run flats and go with regular tires on my 2017 Stingray. I've recently been adding XL Splash Guards, Skirts, Front & Rear Fender Flares and a Stage 3 front splitter and wonder if going up one size wider on the tire would match a bit better overall. Factory fronts are 245/40/18 and Rear 285/35/19 and thinking about 255/40/18 and 295/35/19. Are there any other considerations when doing this? Thanks in advance, Eric
eze.lasvegas
Think twice about removing run flats. You have no spare. I removed mine on my 17 Stingray, and bought a compressor and fix a flat kit. Never did have a flat. BUT, I traded the Z51 in for a Z06 which had the runflats still, and hit a pothole which caused a blow out. Without the runflats, I would have been stranded as there as NO fixing this blown out tire with a tire patch kit. I was 200 miles from home and was able to drive over 60 miles to a tire store to replace the tire. You will not be able to do that without runflats. And, if you go wider on the tire, you will not get enough of a seal (In my opinion), to maintain proper tire pressure.
Just a few ideas Looking at tires in these sizes the diameter goes up by .15inch aprox, and the section width goes up .4 inch aprox. All depends on the tire brand and style. These are still in the acceptable rim width range per the tire spec. Rim sealing should not be an issue. These will still likely fit. The lack of run flat will make the sidewall softer. And the increase in dia. will make the sidewall softer. For normal road driving you will likely not notice anything but maybe a slightly softer ride. The wider tire will make alignment more important. But again this is a small change and likely not very noticeable. The sidewall lower stiffness may increase the sideslip angle in corners. It may cause more under or oversteer depending on the balance of the front to rear slip angles. Again for normal road driving you may not notice. The key for controlling slip angle is buy good tires not cheap one. As for lack of run flat. I think it depends on the tire and how and where you drive. If you run sticky tires like sport cup 2s then stay with run flats as the sticky tires pick up all sorts of stuff- I have had 6 punctures in 50k miles. If you run tires with more tread and do not take long trips non run flats should be ok. Hope this helps
Going wider should work but check clearance with your flares and skirts to avoid rubbing. Ensure your wheels fit the size and keep the diameter close to factory to avoid speedometer or traction control issues.
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
