andrewjstacey

Thanks for all that, also I've noticed the boost doesnt come on until about 5000rpm and doesnt reach 9psi until close to redline, as this is my first gtr i dont know if thats normal?

Not a faulty boost gauge have checked there as well. I tried blocking off both lines going to the wastegates as a test, still the same, I thought that in theory that would mean they dont open so would max out turbos? Or have I got it horribly wrong?

Hi there, I recently imported an 89 R32 GTR. Its fitted with N1 turbos but was only running 6.5psi boost using the standard boost controller, I removed the restrictor in the vacuum hose and now the boost is up to 9psi. This seems low considering most posts etc seem to think that without the restricter it should run 15psi. I have checked and rechecked all the piping etc looking for any leaks or splits but cant find anything. Anyone have any ideas as to why its low? Could it be because it has the different turbos and as to how I can remedy it? Thanks!