Today I drove a Mach1 chassis with a X30 engine. The track was extremely grippy and I had the kart rear hopping on throttle on almost every turns. We tried to free the chassis by widening the front and rear axles, adding more camber but it had almost no effect, I couldn’t adapt to the conditions and had to cope with the hopping.
I had the same issue, albeit less important, last year on a CL chassis. Are all the newer chassis like this ? I feel like we can’t have any entry rotation anymore and it is messing with my driving style.
My laptimes were good though, but my neck wasn’t strong enough to handle the hopping.
My crg kt5 had the same behavior - I tried a ton of different adjustments, seat position, ride heights, camber, adding caster, rollbars, toe settings. Rear had to be at max width - any narrower and the rear hopped even more. Only thing that took the hopping completely away was taking almost ALL the caster out - from top and bottom. This was possible after adding another sniper kit to the underside. Taking all the caster out from the top sniper didnt help
Maybe they are trying to go stiffer again. I know I have compared the 2006-2009 spec Merlins to todays and the difference is huge how much stiffer the karts used to be.
You’re on the bigger size for a 30/30 but it should be workable, just might take a bit more effort to find that sweet spot. Sounds like you were taking good steps to adjust it.