what are the standard air pressures on standard rims front,rear

 

26psi all round iirc

 

are u sure mate! that does seem to be abit to low

 

Well i have to admit, at a first glance it seems low.....however, taken straight from the horses mouth (A Ford Mk3 Operators Guide):



Bear in mind though, that only states R13 & R14 wheels, whether the RS's vary because of the R15 radius im not sure.....but it can't be far off!