rustyrs

iv just finished runing in my s2 engine so iv turned the boost up from 10 psi to about 14 but it dont feel any quicker,feels like there is bit off a missfire on boost,its got new plugs/leads/filters.etc runs ok off boost n up to 10psi, cheers

vroooom ptssssh

did you solely just increase the boost?

Chris69

it might be not be fueling enough for 14psi mate- get it checked and turn it down till u do