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View Full Version : even tire wear... 2.5 camber?


Tjay
2009.06.14, 02:31 AM
I have tons of traction at FPR track. Well, not quite as LA folks but pretty close. I've been running 0, .5, and 1 camber and I still couldn't get the even tire wear I was looking for. So I went ahead and jumped to 2.5 camber by PN.

Check it out!
http://i52.photobucket.com/albums/g10/Teejay_Cynthia/IMG_0223-2.jpg?t=1244964034

http://i52.photobucket.com/albums/g10/Teejay_Cynthia/IMG_0224-2.jpg?t=1244964083

http://i52.photobucket.com/albums/g10/Teejay_Cynthia/IMG_0226-1.jpg?t=1244964128

http://i52.photobucket.com/albums/g10/Teejay_Cynthia/IMG_0228-1.jpg?t=1244964181

tire wear:
http://i52.photobucket.com/albums/g10/Teejay_Cynthia/IMG_0229-1.jpg?t=1244964220

http://i52.photobucket.com/albums/g10/Teejay_Cynthia/IMG_0230-1.jpg?t=1244964255

http://i52.photobucket.com/albums/g10/Teejay_Cynthia/IMG_0231-1.jpg?t=1244964290

http://i52.photobucket.com/albums/g10/Teejay_Cynthia/IMG_0232.jpg?t=1244964319

I think 2.5 is a little extreme but somehow, it works great on this track... perhaps the layout? Anyhow, the front end of the car works great with PN white low down springs, 2mm shims (I think) under the knuckles, PN orange limiter cup, and an ATM yellow shim on top of the spring with kyosho 30 slick upfronts.

color01
2009.06.14, 03:57 AM
It looks like it's coning just a tiny bit... I'd think that 2deg would be perfect.

Low-down springs, huh? They don't look all that shorter than the standard MR02 white springs I have.

Slipstream
2009.06.14, 04:26 AM
I agree with Brian. Looks like a little coning.

Use a caliper to measure near the outside, middle and near the inside of the tire/wheel to check if the camber is working out.

MantisMMA
2009.06.14, 07:30 AM
it looks like its coning to the outside which means you need more camber so try the 3's. i run 3deg on my pan car with WTF and the tires wear flat.

MantisMMA
2009.06.14, 07:32 AM
maybe its an illusion but judging by your pix the dr side upper tower looks bent down???

ZicZicZoom
2009.06.14, 09:22 AM
maybe its an illusion but judging by your pix the dr side upper tower looks bent down???


it does look a little bent to me

-J-
2009.06.14, 09:45 AM
Not only does the upper tower look bent, that doesn't look like 2.5 degrees camber. :confused: Looks more like stock camber to me.

herman
2009.06.15, 04:13 AM
the coning might seem like an optical illusion since the tire may look thicker on the outer rim, the inner rim does have a lip which makes the tire look thinner...

looks pretty flat to me, very little coning if ever... :D

Tjay
2009.06.15, 12:27 PM
been busy over the weekend sorry for late reply.

It's not 100% flat. However, it gave 100% better result in tire wear. Better than 1.0 degree camber which was the camber degree I have been running for months. Then again it was on a different track so the traction was not the same. My track is like a frickin' 600 grit sand paper. lol...

I still think that 2.5 is over kill but this was the only camber we had at the time. I want to try atomic's 2.0 v2 camber but PN racing just released their inserts. So, I might have to get PN 2.0 with delrin inserts.

eztuner12
2009.06.15, 03:55 PM
it looks like its coning to the outside which means you need more camber so try the 3's. i run 3deg on my pan car with WTF and the tires wear flat.

I agree with you MantisMMA,
Yep it looks like + wear so going on a -3 camber may be the solution.

If that upper tower is bent as it looks, it will indeed induce a + camber

Cheers

eztuner12
2009.06.15, 04:13 PM
been busy over the weekend sorry for late reply.

It's not 100% flat. However, it gave 100% better result in tire wear. Better than 1.0 degree camber which was the camber degree I have been running for months. Then again it was on a different track so the traction was not the same. My track is like a frickin' 600 grit sand paper. lol...

I still think that 2.5 is over kill but this was the only camber we had at the time. I want to try atomic's 2.0 v2 camber but PN racing just released their inserts. So, I might have to get PN 2.0 with delrin inserts.

Hi TJ.
Usually is better to accomplish a bit of (–) camber wear on the front tires, rather than a (0) camber wear as it is the goal at the rear end tyres.

On RCP track, you have to go over the margin with (-) driving camber since the cushion surface of the RCP will always encourage an (+) Camber wear, specially on the front axles.

Cheers