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rcdad123 · 02-08-2012, 01:32 PM

it could be the tune. if you don`t have enough exhaust pressure to push 15 psi, no matter how high you set the MBC, it won`t reach 15 psi. you might have to advance the ignition timing a couple of degrees at the rpm you want the boost to come on.

02-08-2012, 01:32 PM	#7
rcdad123 Zilvia Addict Join Date: Jul 2011 Location: san diego Posts: 639 Trader Rating: (0)	it could be the tune. if you don`t have enough exhaust pressure to push 15 psi, no matter how high you set the MBC, it won`t reach 15 psi. you might have to advance the ignition timing a couple of degrees at the rpm you want the boost to come on.