Quote:
Originally Posted by JimGnitecki
JBinSD: I bought a brand new 2022 LT1 and had a Magnuson supercharger kit installed by Davenport Motorsports, the Canadian distributor. That resulted in the OEM LT1 rear tires losing traction at full throttle at any speed up to the maximum I have driven the car (about 85 mph).
But i LOVE the optional black forged wheels that came on my LT1. They are the first car wheels I have ever owned that look really good while enabling washing even the inside surfaces when washing the car, and doing so quickly and easily.
But a pair of wider ones for the rear from GM would cost a fortune here in Canada.
Guys here on the forum suggested I try a pair of Nitto 555R2 tires ("street drag radials"), in 275 width, on the 8.5" wide wheels I have. This is technically on or past the recommended limit of wodth on an 8.5" wheel, but the local tire shop manager was comfortable with the safety of it.
That totally solved the full throttle traction problem, at sensible ambient temperatures (the car still loses traction in colder weather, but not nearly as badly).
The appearance of course is also nicer. 
Jim G |
Thanks Jim, so you went 275 on the stock 8.5" rims without issues? I may have to try that as well. I had the Nitto 555's on my SS for a while; good grip but fast-wearing. I should probably change all 4 tires if I go with different compounds; the all-seasons on the LT-1 do pretty much suck, and I live in SoCal so summer-only is the way to go.
Cheers.