Tire Boogers

[mievil]

Sorry, I'm not aware of any technical terms for this, so that's what I'm calling them.

What causes tire boogers? I got them after my 4th and 5th fun run yesterday, so I'm guessing it's something temperature related, but since I'm still extremely new to this I want to find out the direct cause. :confused:

[woodrufj]

I want to find out the direct cause. :confused:
QualComm is the direct cause. Its a surface specific thing that isn't really of any consequence.

Jay W
505/287 Dakota

[mievil]

Weird. I only got them on the rear tires, and I've heard of some heat issues with the Falkens before and them possibly requiring spraying between runs, which I have no idea about, so I thought that may be the issue. Interesting. Thanks for the info.:)

[cshodges]

Luckily, there was a bunch of paper debris at the Q yesterday. My tires picked up plenty of tissue to deal with their boogers. :)

[froggy47]

Luckily, there was a bunch of paper debris at the Q yesterday. My tires picked up plenty of tissue to deal with their boogers. :)


What was all that paper crap everywhere?

[MX5bob]

What was all that paper crap everywhere?
Yeah, it's been there before. Someone holding an Xtreme Paper Mache fight or what? :D:confused:

[CNaylor]

What causes tire boogers? I got them after my 4th and 5th fun run yesterday, so I'm guessing it's something temperature related, but since I'm still extremely new to this I want to find out the direct cause. :confused:

I'm assuming your describing the little rubber tire blotches. I disagree with Jaysons answer of Qualcom as the cause, but where all allowed our own opinion. I've gotten these just about anywhere I've run, including Norton, which all will agree is very tire frendly. That said, I usually get these at events that create very hot tires, be it ambient tempature, course design, or bad driving. I believe the primary cause is going off into the marbles, or at least running near the edge of the "commonly driven" line on any particular course. If you get off into the marbles, often mixed in with the dirt are little rolls of tire rubber others left behind when they went into the marbles to hot and scrubbed of speed (and tires) turning sharper than the car could responded to at that speed. When you roll over them, your warm tires stick to them and pick them up. I typically get these on my rear wheels, rarely on the front (FWD), I've noticed Miatas ofter pick them up on their front wheels (RWD). My guess is we pick them up on the non drive tires, as they typically don't get quite the same scrubing effect going around the course.

You'll probably notice the Nationaly competitive types removing these from there tires, as the tire no longer sits flat on the ground with the "boogers". I do this myself at Tours and ProSolo's, but at local events, I just leave it on, and figure I just picked up another run or two of rubber from someone else for free.

[RandyC]

Technical term is OPR

Other People's Rubber

[ULLLOSE]

This is normal, every track, every car will see this to some degree. When you watch Nacsar, Indy, sportscar road racing on TV you see them weaving during cautions to keep the tires warm and to get the tire turds off. You wont see it on the front tires as much because every turn peals it off. The rear tires don't get worked as hard, on most cars, so it tends to build up there.
If you drive off line at all you will pick up tons of them.
By the time I finish my 60+ mile drive home from SD I still have some of them hanging on. A heat gun and putty knife take them right off.

[zads]

The softer slicks make rubber boogers from heating up and shedding some rubber, as well as picking it up off the ground.

You should see the UCSD Formula SAE cars.. especially when we first run a new set of the Avon slicks (they're soft and sticky enough, that they stuck to and picked up the scale we weighed them on :p )... you get a constant, crazy bombardment in the helmet visor with rubber flying off the front tires every corner. interesting to watch, crazy to experience.