Intake/MAF question

augustine13 · 08-09-2010, 04:11 PM

I just built an intake on my 99 forester and i'd like to shorten it up so i can get a little more torque and low end hp. how can i either delete or move the maf closer to the intake manifold?

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RaceFaceXC · 08-09-2010, 06:20 PM

you could move the MAF housing anywhere you want before the TB, but the closer it gets the more likelihood of erroneous readings. Also, changing the length of the ports/runners and size of the plenum is what changes the powerband... the intake length before the TB will only have WOT effects on powerband and they will be very very very very small.

augustine13 · 08-09-2010, 06:42 PM

a buddy of mine from a local subie shop just told me the same exact thing. haha. what about upgrading to a 2nd gen intake manifold and a throttle body spacer too?

08-09-2010, 04:11 PM	#1
augustine13 Scooby Newbie Member#: 226393 Join Date: Oct 2009 Chapter/Region: NWIC Location: Spokane WA Vehicle: 1999 Forester Subie Green	Intake/MAF question I just built an intake on my 99 forester and i'd like to shorten it up so i can get a little more torque and low end hp. how can i either delete or move the maf closer to the intake manifold? * Registered users of the site do not see these ads.

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08-09-2010, 06:20 PM	#2
RaceFaceXC Scooby Specialist Member#: 165749 Join Date: Dec 2007 Chapter/Region: South East Location: stupid Florida Vehicle: 2007 No YELLING on the bus!	you could move the MAF housing anywhere you want before the TB, but the closer it gets the more likelihood of erroneous readings. Also, changing the length of the ports/runners and size of the plenum is what changes the powerband... the intake length before the TB will only have WOT effects on powerband and they will be very very very very small.

08-09-2010, 06:42 PM	#3
augustine13 Scooby Newbie Member#: 226393 Join Date: Oct 2009 Chapter/Region: NWIC Location: Spokane WA Vehicle: 1999 Forester Subie Green	a buddy of mine from a local subie shop just told me the same exact thing. haha. what about upgrading to a 2nd gen intake manifold and a throttle body spacer too?