Euro/UKand US spec cars are broadly the same, engine, transmissions and turbo's are identical.crazydriving said:
In the UK 18 psi is considered to safe limit for the turbo's and we have few failures. In the US however there appears to be many schools of thought and a lot of blown turbo's.
How much rwhp with 20 psi, the question should really be how much rwhp and how long for!