caterhams... why?

caterhams... why?

Author
Discussion

rubystone

11,254 posts

260 months

Tuesday 23rd May 2006
quotequote all
[quote=fergus Currently, the tyres are all set to have the arrow pattern 'facing forwards'. I presume this is the best way for the tread to cut through the water?[/quote]

Interestingly, I notice that Hyperion run all racecars that use CR500s with the front facing the "wrong" way. So I guess that's Finchy's reference point for his wet tyre suggestion.

Finchy, clearly you have too much time on your hands - evidenced by your posting here. Now Mr Epstein is moaning that he's all on his tod today and thus can't attend to my HPC nor my R500 - so if you're surfing the net, log off and go and put one of my two engines back in my cars please!

casbar

1,103 posts

216 months

Tuesday 23rd May 2006
quotequote all
Interesting thread about the CR500 rotation direction. I just asked the question about direction to BMTR (the guys at Avon), they said the tyre is directional and should always be run with the point of the tred hitting the water first.

I mentioned some run them the other way around in the wet, and the chap from BMTR said "I don't know why they do that" that would push the water to the centre of the tyre tred!

Think I'll continue to run mine the normal way for now :-))

fergus

6,430 posts

276 months

Tuesday 23rd May 2006
quotequote all
casbar said:
Interesting thread about the CR500 rotation direction. I just asked the question about direction to BMTR (the guys at Avon), they said the tyre is directional and should always be run with the point of the tred hitting the water first.

I mentioned some run them the other way around in the wet, and the chap from BMTR said "I don't know why they do that" that would push the water to the centre of the tyre tred!

Think I'll continue to run mine the normal way for now :-))


I agree with you (& David @ BMTR) - that's exactly what I thought. Seems the herts based garage who also setup several academy cars are talking pony then!

rubystone

11,254 posts

260 months

Tuesday 23rd May 2006
quotequote all
Hyperion aren't in Herts so it's not them...but you're missing the point maybe - there was a thread on Blatchat ages ago about raceteams running the front CR500s the "wrong way round" in the DRY. I don't have the time to find it, but I think the answer as to why it is done was in there somewhere.

My experience in running CR500s on track is that the fronts grain when you push the car hard and increase understeer. Cool them down and they're fine though and the wear is quite even across them.

Clearly, you'd run them the right way round in the wet, otherwise you'd be encouraging aquaplaning!

Finchy172

389 posts

220 months

Tuesday 23rd May 2006
quotequote all
Thats correct

Run them the wrong way in the dry, they wear better that way and you dont get a build up of rubber on the flags

in the wet run them the correct way so the water is dipersed faster!

If your in reference as to why some cars have had them on the wrong way in the wet - thats because the car will have been setup for a dry session and the heavens opened etc!

fergus

6,430 posts

276 months

Tuesday 23rd May 2006
quotequote all
rubystone said:
Hyperion aren't in Herts so it's not them...but you're missing the point maybe


Ruby - it's not Hyperion! Not missing the point, just curious as to someone's logic!

andya7

190 posts

217 months

Thursday 25th May 2006
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CR500 are/were (there is a new race compound used for the current 'Caterham' organised series') run the 'wrong way round' in the dry as there was an issue with the tread de-laminating under race conditions i.e. braking