08-04-2014, 05:51 AM
I'd expect it to hold for a decent period, up to 3500 at least, but the turbo is heading out of it's efficiency by then and will struggle to provide the flow. That said, i've never sat and watched the boost gauge on a stage 2, so couldn't say for sure.
A small amount of smoke at low revs when accelerating hard isn't too much to worry about - a quick squirt of extra fuel will help bring the turbo on boost earlier.
A small amount of smoke at low revs when accelerating hard isn't too much to worry about - a quick squirt of extra fuel will help bring the turbo on boost earlier.