General track use questions

[BeagleGuy78]

So tomorrow is the first day I will be driving the Seven on a track in anger! Have a gopro set up with remote mic that will hopefully provide decent enough sound to not be annoying.

 

I had a couple questions about tires/wheels. What torque should I put on the lugnuts for the wheels? I like to check these before every session and want to make sure I don't over/under torque them.

 

Also, I have Avon tires on 13" Apollo wheels, what would be a good target HOT tire pressure? What is a good cold starting point to achieve this hot pressure? I am thinking target 18psi hot and starting at 14-15psi and bleed off after every session as needed to keep 18psi?

 

Thanks

[James A]

Which Avon tires are you using and what size?

Are your lugs standard Caterham issue or have you replaced them with an upgraded lug?

Edited July 5, 2018 by James A

[BeagleGuy78]

Avon ZZS, I think they are 185 front/205 rear ... I bought my Seven from it's 2nd owner recently and I have no idea if lugs are stock

[James A]

Here is the Avon recommendation: http://www.avonmotorsport.com/road-legal/performance/zzs

As to the lugs, the Caterham manual for my car list the torque as 55 lbft (75Nm) and warns not to over tighten. We retrofitted ARP lugs and tighten them to 75 lbft, for track/racing application.

[BeagleGuy78]

Thanks for the info ... Hopefully I'll have some not-too-embarassing video soon!