Infra Red (heat) Photos Of My Tyres

[djr81]

As the title says here are some shots of my tyres after fours laps of Wanneroo last weekend. Should be pretty self explanatory. Car is an old R32 Gt-R. Laps time was nothing special (65 second laps) and the track was cold & a little greasy.

Thought they may amuse someone.

[sav man]

how you get your hands on one of them?

[bnr#@]

Thats pretty cool... usefull to...

[BBGTR]

Fantastic, best wheel alignment jig around!!

[Adz]

So what was your conclusion on the fronts?

Too much toe in, camber or presure?

[Ant97GTR]

Awesome tool

So did you get a chance to use it a number of times to see if any adjustment in the susp was helping or was it a once off?

[Snowman]

Chances are it's probably an iPhone app. lol

[Redsuns88]

i thought it was going to be a jig about a nascar how it only turns left. :S

[djr81]

To answer some of the various questions:

how you get your hands on one of them?

Sort of one of those things - you either know someone with one who uses it for work or you can't get them.

So what was your conclusion on the fronts?

Too much toe in, camber or presure?

I was pretty happy with the fronts to be honest.

Awesome tool

So did you get a chance to use it a number of times to see if any adjustment in the susp was helping or was it a once off?

Did you just call me a tool?

Just used it the once (it rained later) to check that the settings were about right. I am reasonably confident they were.

[Beer Baron]

clockwise track? the lefts look really good. right rear pretty good too, though obviously not working as hard overall and right front not bad, but spread is a fair bit wider.

pretty sexy piece of gear. thanks for sharing big fella.

[SimonR32]

65sec long or short track?!?

if its long track thats not a bad time at all... if its short track you have problems

[djr81]

clockwise track? the lefts look really good. right rear pretty good too, though obviously not working as hard overall and right front not bad, but spread is a fair bit wider.

pretty sexy piece of gear. thanks for sharing big fella.

Yeah its Wanneroo so clockwise. Only four serious corners, three right handers - 2 x 180 degree & 1 x 90 & one left hander (90 degrees plus a little). Plus a few less substantial wiggles.

65sec long or short track?!?

if its long track thats not a bad time at all... if its short track you have problems

Give me a break (please).

It was cold, it was wet, I was tired, out of practice and err, um refer to the driver's book of excuses for further info..

Oh and it was the long track and none of the other AWD's managed to go any quicker on the day.

Edited July 1, 2009 by djr81

[ONE-VIA]

thats pretty cool

and like snowman said is it some kinda iphone app?

[phunky_monkey]

I'd be super impessed if it was!

[wrxkilla]

fantastic!

now that would be worth some investment!!!

michael

[salad]

Only problem with that is that after a cool down lap, the surface temperature from an infra-red reading isn't the best. By that time, the heat has spread through the tyre and the results aren't 100% accurate. You really need a probe to get the carcass temp at 3 points across the tyre, and even then the cool down lap dilutes the results a bit.

Now if you could get that image as a real-time video, that would be awesome to see.

[Beer Baron]

if we are serious and checking tyre temps and pressures there is no cool down lap. warm up lap, on it lap, on it lap, into pits, quick as possible measurements then back out for cool down/warm up lap again. no point wasting 2 minutes wrecking the data toodling around on a cooling lap. I'm sure richard did the same.

[djr81]

Yeah that is pretty much what I did.

[GTRHOLIC]

where can we get one!?

[Sydneykid]

I assume the pictures are taken from the rear of the tyre and the slow down lap wasn't all that slow.

As Showza posted above skin temperature isn't always a good indicator, you need to get below the surface to get a true view. That said, it's a place to start the thinking.

The LHS tyres look pretty good, reasonably even.

The RHS tyres shows too much camber, as you would expect from a clockwise circuit.

The LHS front maybe needs a little more pressure, maybe 1 lb

Both of the RHS tyres need more pressure, maybe 2 lbs.

At Wannaroo we always run less camber on the RHS than the LHS in an attempt to get more of the load onto the inside tyres. Share the traction around for cornering. Plus it helps under brakes with less camber on the inside tyre. As well as staggered camber we also run staggered tyre pressure (as I mentioned above).

Gotta go, Eastern Creek this weekend and I have lots of cars running.

Cheers

Gary