Might Have Different Gear Ratios Need Help.

[mad082]

it tails off a little bit at up top. i just put it down to a mix off the boost controller ($22) and the turbo running out of puff. it only drops of 1, maybe 2 psi. i don't really take much notice. usually keeping my eyes on the road.

i do know that when i had my turbosmart dual stage controller on it would bleed off about to about 11.5psi, but i know that my cheap one doesn't bleed off anywhere near as much.