Strange tyre wear (R1R's)

Strange tyre wear (R1R's)

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Discussion

XJR500bhp

Original Poster:

1,192 posts

210 months

Wednesday 30th July 2014
quotequote all
Hi guys
Been racing my old XJ40 for a few months (7 races and I took the tyres off today as I finally have a set of 888's to fit, however I noticed the tyres are wearing as per below. Any ideas what's going on? it's suppose to have negative camber but the wear is to the outside edge on both front tyres. The suspension has been reworked one race ago, so it probably wasn't well set up before. But what are your opinions on what's happening to my tyres?
Thanks in advacne



djroadboy

1,175 posts

236 months

Wednesday 30th July 2014
quotequote all
Pretty normal for Toyos in my experience. You'll probably find your R888s will do the same but.....

1. They have been getting too hot (not surprising on such a big car).

2. They have been running at too high a pressure.

I would be looking to try and get some accurate temperature measurements across the tyre during testing and adjust your camber/pressures accordingly.

/2p

Dan

Jerry Can

4,444 posts

223 months

Thursday 31st July 2014
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check your tracking - looks like it is miles out.

LukeKerr

45 posts

117 months

Thursday 31st July 2014
quotequote all
djroadboy said:
Pretty normal for Toyos in my experience. You'll probably find your R888s will do the same but.....

1. They have been getting too hot (not surprising on such a big car).

2. They have been running at too high a pressure.

I would be looking to try and get some accurate temperature measurements across the tyre during testing and adjust your camber/pressures accordingly.

/2p

Dan
I would second that - good advice.

jj.

546 posts

270 months

Thursday 31st July 2014
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Please tell me you've not done 7 races on 'THAT' tyre...?
...?
jj

MG CHRIS

9,081 posts

167 months

Thursday 31st July 2014
quotequote all
LukeKerr said:
djroadboy said:
Pretty normal for Toyos in my experience. You'll probably find your R888s will do the same but.....

1. They have been getting too hot (not surprising on such a big car).

2. They have been running at too high a pressure.

I would be looking to try and get some accurate temperature measurements across the tyre during testing and adjust your camber/pressures accordingly.

/2p

Dan
Agree on this I went to llandow last weekend in my mx5 with a set of wheels with toyo t1r and had simalier wear to that, specially on the left side of the car due to the track being mostly right handed so more pressure on the nearside of the car.

I would second that - good advice.