The problem here is Morgan quote low pressures, but give no substance as to why and then use multiple tyre brands on the cars to add to the confusion.

Me personally I have stuck to the lower pressures, but in all honestly after speaking to an expert at Michelin I am far more inclined to listen to their advice and run them a bit higher (was quite a lengthy discussion) than Morgan's. From what I recall they said the optimum tyre range for grip was 32-34psi when hot, so cold was around high 20s to 30 depending on the type of usage.

I haven't got the tyres changed yet however, so I cannot play about and see how it feels on the road, but 30psi won't be overinflating.

With regards to F1, they play about with pressures and usually run as low a pressure as possible to aid traction (although the high sidewalls in F1 offer little crossover to road use at this point in time) - due to issues with punctures and tyre delamination they are forced to run the tyres in a specified Pirelli psi window now.

Last edited by NickCW; 17/04/19 10:49 AM.
Aero 8 GTN #11

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