big boost cup
Right im wanting to know what size the standard pulley is on the supercharger kits sold by the likes of K-tec, Rs Tuning etc. the reason for this is Rotrex claim a max of 10psi boost but mine makes 13.something. so want to know if it has a smaller pulley and is over speeding the charger. TTs also claim 15psi on some of their s2000 conversions.
