LV mags are meant to keep the tires in the operating window and keep the tire cooler. Most guys run aluminum wheels in the wet to add grip. And the LV wheels are almost no different feeling than the standard mags from my testing. Probably more of a marketing ploy than anything.
I wouldn’t mess with wheels here, there isn’t a lot to be gained. I’ve had success running MXCs on cold slippery tracks before, so wheel material isn’t a dealbreaker when it comes to cold track surfaces. Where it really becomes a valid tuning tool is when you’re trying to keep the tire cool in a high-grip, hot weather situation.
I’ll agree with the rest of Matt’s suggestions other than the higher tire pressures. Depending on what tire you’re running, a higher pressure can actually crown the contact patch and keep the tire from really digging into the track surface. We’ve found this especially true with the Bridgestone YLB/YLC tires. The MGs also seem to like lower pressures if you are looking for the kart to “dig”. There’s more to it than just trying to find “grip” out of the tires. You’re trying to get the kart to lift and take a “set” in the corner instead of skid across the surface.
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