ibizacupraturbo

Guest
got my ibiza revo remapped it now boosts to about 17 psi but is hardly anyfaster and sounds like i have got an air leak when its at full boost with your foot to the floor you can watch the boost guage go back down when your still driving hard any ideas where it could be leaking from or what the problem could be
 
What does the boost drop to when in 4th and 5th and driving it hard?

It wont hold 17psi right through the rev range mate.

Whats the rest of your mods?
 
it can go right to 20 but will go right down to 10 also if i dont change gear at 4000 rpm it slows right down just ad a recon turbo fitted but think its a duff