check my tires.

marc-andre hubert · Joined: 10 Apr 2012 Posts: 174

been reading alot about kart handling, and i feel very confortable in the kart, i always know what it will do, but i got alot of buildup on inside of tires front and back, check pic and if you could tell me whats up.

Britt Robinson · Posted: Mon Feb 25, 2013 1:20 pm Post subject:

You are going too slow and picking up rubber left behind from the 4cycle clones... Mr. Green

_________________
I am a precisional instrument of speed and aeromatics. - Mater

Randy Mckee · Posted: Mon Feb 25, 2013 2:43 pm Post subject:

You have anything more close-up? Difficult to tell, but those look completely shot. I personally don't read too much into tires that are well used-up. They almost always develop cupping on the inside edge, which is what I see in your tires. The grain pattern looks OK, but it's a little too far away to get a good read.

Now, if my tires looked like that after a few runs, I would say I have a massive entry push and slap over-steer. The reason I say that is the front inside edge is cupped badly. That can result from under-steer in any part of the turn. However, rears also have bad cupping on the inside edge which usually results from tire spin on exit of the corner (when applying power). Either condition can occur together or separately depending on how the kart is handling. The most common is to see fronts showing some under-steer.

Again, if they are wasted, don't read too much into the wear. Put a new set on when you're ready, and then take some pics after a few track sessions.
_________________
Randy
#123 TonyKart - S4 Stock Honda

Doug Ring · Posted: Mon Feb 25, 2013 4:41 pm Post subject:

marc-andre hubert · Joined: 10 Apr 2012 Posts: 174

well here is a video, first few laps im getting here in motor /tires so skip, these tires are old (2 races and this practice) and yes they are shot i have fresh ones in trailer but keeping them for march 30 race,

IIRC 46.5 " front 54.75" rear, medium axle/ hubs, 2 seat struts each side, good amount of castor, 3 neg camber, no rear bar, side bar and front bar in, 32mm chassis. seat 8.25" from top of axle, bottom is flush with bottom of rail, bearing out

http://www.youtube.com/watch?v=jlNdXc01YDo

Jay McKeage · Posted: Mon Feb 25, 2013 8:57 pm Post subject:

thats palmetto, so best advice i would give u is to talk with kyle klepp or kevin greeno. they have garages there still i think and have been doing shifters a long time. looks like the tires have a lot of heat cycles on them and are worn out. next couple of times out you should start to see the chords. you do not learn much testing on tires like that for chassis set up. good luck and if u are in orlando this weekend stop by the tent.

jay

marc-andre hubert · Joined: 10 Apr 2012 Posts: 174

tires are in the garbage, was just looking for a idea if there too warn out then no worrys, i always change my tires before hand but was just having fun.