275 Track Day Pressure's

I run 30psi hot all round.

On a warm day I'll start with 26psi cold and adjust until right pressure.

 

Track temp, ambient temp, tyre type, driving style and track layout all make a difference.

Are you aware of the chalk method?

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I'm not dale, please enlighten?

I'm currently running 31 hot up front 30 rear. Works out roughly 24 cold all round on my ad08'rs

 

Mk3.

F35 R29 Hot.

 

18" or 19"?

 

This is only useful in dry conditions.

OK. So get a kids playground chalk. Mark the tyre from centre right across to halfway down the sidewall. Do this across all 4 tyres, at 3 different points on each tyre.

Do a session.

Check the wear points on each tyre, this is possible without chalk, but it's much easier with.

If the chalk is wearing on or too close to the sidewall, increase pressure,

If you are not seeing wear right across the tyre, decrease pressure.

RE chalk the tyre after every session until the wear is consistent.

This means the pressure of each individual tyre, is tailored to the circuit and conditions on the day, and the load each tyre is under on that track. When cold the pressures in all 4 tyres will be quite different, so be sure to allow to completely cool and reinflate before driving home if you use the same wheels to get there.

There are many ways of setting pressures to influence handling characteristics etc. But this method means you are getting the most out of each of your contact patches, will make your tyres last longer, and is workable whatever the track or conditions.

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Not heard of that one but sounds like a nice old school method, better than waiting till you've scrubbed half the sidewall off

 

Hopefully the image works, it's a rough job, but that's the general idea your looking for.

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Exactly. The hardest session on the tyres is the first one. After that you will be getting far less uneven wear.

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Well on the road between days, I run 34F 30R on street Ns2rs. That's a little lower than tends to prove optimum on track, and just gives the tyres space to warm up without over inflation if I have a blast round Wales etc. I'd like to point out though, I keep 99% of it on the track as my license is my livelihood.

And brake lines are OE for now, but will be upgrading, from what I've seen of Renault lines in the past, braided rears are probably not worth the hassle of fitting. But there are a fair few options, particularly from the continent.

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Thats really good shit thanks dale [emoji106][emoji106][emoji106]

 

Welcome bud. [emoji106]

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