mondy1

cheers for the info guys I think im going to order a set of tomie springs to be on the safe side

Was having a conversation the other day with someone regarding skylines and the conversation went over to boost levels etc. one of the parts of the conversation was about high boost levels blowing open the valves is it possible for high boost aplications say 2 - 2.2 bar blowing the valves open?? what sort of boost pressure would it take to blow open a standard valve spring i was running 1.7bar on my standard head with uprated cams and never got a problem