More thoughts despite fairly worn tires?.. (Note the same graining front and back despite fronts having much more tire left)
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Drop 1lb cold and go again.
Rears are thoroughly cooked. Angled graining = pure sliding
Fronts are cooked too, but not as bad. Graining and outer edge build-up = understeer
My thought is either the kart wonât turn or youâre over-driving the entry, and then the kart snaps to oversteer and just lights the rear tires up.
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Back again. This is with some Dunlop DFH option tires instead of the usual Vega XM prime tires.
Slight feathering on the inner shoulder = slight slide but not terrible. Rear end might be a touch too soft? Not sure what to make of the wear on the outer edge. Looks like the tire is shredding a bit?
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Iâd say still sliding a little in the back but iâm at 1391mm already so not sure if I want to go much narrower⌠As for every tire wearing away on the inside edge iâm at a bit of a loss. What do you think TJ? Comparing them to my fathers Rotax tires my inside edges are heavily worn in comparison.
I wouldnât go narrower on rear track on a shifter, youâre right. Might be time for an axle change. Right now it looks like the rear is just flexing and squatting which is what is wearing the inside edge. I might try going stiffer on the axle. If you donât have a stiffer axle, longer hubs can also be a quick adjustment to check if thatâs the right direction.
Iâll try long hubs next time as ivâe got a set.
It seems odd though cause the seat is already higher than factory standard and the axle is already 2nd hardest in the range. Would it be worth changing the rear height from low to medium despite low also being a factory standard?
Cheers TJ
Raising the rear ride height will give basically the same feel as raising the seat, so it could be worth a shot. But the axle might fix it too. I would go axle first because itâs a more normal change. Get that seat up there too high and you might get the whole kart out of the tuning window.
If the axle doesnât help, I would venture to guess it could be a driving thing. How does the kart physically feel on track at entry -> apex -> exit?
Ivâe been widening out the front because after driving my dadâs mad croc I realised my front end was not even close to as nice feeling which helped remove some correction from entry.
Apex I feel is where the corner is decided in terms of slide through exit. If it doesnât slide from the apex itâll be fine all the way through but if it slides through the apex the rest of the corner is ruined.
Iâve been playing with how early and how much throttle ivâe been applying last few times ivâe gone to the track