R.I.B. Posted July 23, 2013 Share Posted July 23, 2013 Just bought a set of Avon ZZR's, same tyres that they're currently using in the Lotus Trophy cup, apparently they're lapping quicker than the A048s and not wearing down as quick. Ordered them direct yesterday lunch time and arrived today. Spoke to a guy called Christopher who was really friendly and helpful and has even asked for me to give him a call back to let him know what i think. Another big bonus is that they're a lot cheaper than the A048s. Here's a link with the contact details incase anyone's interested.... http://www.lotrdc.co...paration/#tyres Just got to fit them on the my new rims and i'll be ready to try them out at Le Mans Can't wait Link to comment Share on other sites More sharing options...
M@r]{ Posted July 23, 2013 Share Posted July 23, 2013 Plan to put these on my track wheels when I kill off whats on there. Interested to hear how you get on Link to comment Share on other sites More sharing options...
Ian C Posted July 23, 2013 Share Posted July 23, 2013 Hmm, I need some new tyres, might give these a go. Link to comment Share on other sites More sharing options...
R.I.B. Posted July 23, 2013 Author Share Posted July 23, 2013 I'll let you know what I think, but only comparing to ad07s / ad08s I know I'll be impressed. The guys in the championship seem to like them though. Link to comment Share on other sites More sharing options...
John FISH Curtis Posted July 23, 2013 Share Posted July 23, 2013 Im desperate for a set of tyres, just waiting for a price on some R1-R's thingy's first. I make that about £530 inc vat and delivery? Looks like they need some scrubing in first. Did they recommend a running PSI? Link to comment Share on other sites More sharing options...
G Posted July 23, 2013 Share Posted July 23, 2013 Be good to see how you get on at lemans phil Link to comment Share on other sites More sharing options...
R.I.B. Posted July 23, 2013 Author Share Posted July 23, 2013 For my s2 they cost me 577 Inc vat plus delivery. Haven't seen any recommended tyre pressures, I'll try starting at 24 / 26 cold and see how I get on. The tyre walls feel super solid. G - I'll need to borrow some skill from somewhere to get the best out of them but I'll give it a good go Link to comment Share on other sites More sharing options...
chris_h Posted July 23, 2013 Share Posted July 23, 2013 I saw that they said they needed running at a higher pressure. Think it's all on the Avon website. Link to comment Share on other sites More sharing options...
R.I.B. Posted July 24, 2013 Author Share Posted July 24, 2013 Cheers Chris, I found this information under the avon resource centre - lotus on track... We strongly recommend all competitors to 'scrub' new tyres in. This helps increase a tyre life and also its consistency over long runs. More information on Avons Scrubbing in procedure. Minimum cold starting pressure: 22psi (This is the pressure the tyre is set to prior to a session/ heat cycle). Running any lower than this could potentially damage the tyres sidewall construction. Avon Motorsport does not recommend specific starting pressures. This is due to the variables involved (i.e. track conditions, track and ambient temperatures, circuit layout, session length, driving characteristics). Target hot pressure: 32psi (This is the optimum pressure for the tyre to be run at whilst at operating temperature). To obtain this target hot pressure there may be a requirement to start each tyre at different cold starting pressures; this is due to each tyre inevitably working at different levels. The cold starting pressure required to achieve the target hot pressure will depend on the variables stated above. Link to comment Share on other sites More sharing options...
John FISH Curtis Posted July 24, 2013 Share Posted July 24, 2013 Ok, so somewhere between 22 and 32psi !?!? Link to comment Share on other sites More sharing options...
chris_h Posted July 24, 2013 Share Posted July 24, 2013 No, it's saying you should be running at 32 psi when driving. That means a cold starting pressure on the road of probably 28-30 but on track will probably be mid 20's. but they are warning you that you should never start with a cold pressure below 22. Link to comment Share on other sites More sharing options...
R.I.B. Posted July 24, 2013 Author Share Posted July 24, 2013 yeap, they are saying that for optimum performance you need to achieve 32psi whilst you're using them, that's why they don't recommend an exact cold pressure because it depends on the way they're being used, track temp, circuit layout etc. Say you start out at 25 psi when they're cold, you go out on track for a few laps they'll probably be more like 32psi. I've managed to see a difference of 5psi from a cold morning, stood still in shade to a sunny afternoon whilst blasting down some country roads. Even having the sun shine on the side wall for a couple of hours will increase the pressure a couple of psi compared to the side in the shade. Clockwise circuits will heat up the offside tyres more than the inside. Oversteer will heat up the rears more than the fronts etc etc. So to reach the perfect pressure for each tyre you might end up with slightly different pressures in every tyre. That's what the guys who race will be trying to achieve. Link to comment Share on other sites More sharing options...
Kevin Posted March 8, 2014 Share Posted March 8, 2014 R.I.B I'm looking ZZR's for road use did you purchase for road or track and what's your feedback after a few months of use? Thanks Legs Link to comment Share on other sites More sharing options...
Meister Posted March 8, 2014 Share Posted March 8, 2014 To confirm..are ZZR road legal? Mark Link to comment Share on other sites More sharing options...
chris_h Posted March 8, 2014 Share Posted March 8, 2014 Yes, road legal Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.