Feedback Score: 0 reviews
Join Date: Jan 2011
AIR intake Modification, repost from engine
Take this for what its worth, In other words try it yourself and you will believe what I say. The "resonator" box is restrictive on the intake side (up near the side intake point. Once the air enters the plenum it "S" curves back and forth a few times..... At that point the overall opening is much smaller than the intake rubber hose going into the cover of the air filter assembly. So what! you ask Ok stay with me, there is a little opening at the bottom of the plenum used to drain water if it were to get injested... BUT in your application its a perfect place to pull in sand to the front side of the filter........and the back side if you have not greased the lip of the air filter... HERE IS THE TEST. remove the rubber cover (duckbill) and place a fuel line 3/8 I believe over the barb sticking down.... Start your rig, Quick press the gas pedal and you will feel air get pulled into the hose...... I go further to say I ran that 3/8 hose down and drilled a hole behind the drivers seat pushed the hose thru to allow the hose to pull "clean" air not in the sand spray..... Just lately I also added a Supplmental 1 1/2 hose (plastic wet dry vacuum hose) into the plenum area to "bypass the restriction of the aformentioned "S" bend section of the intake ran it behind the drivers seat and well IT PULLS ALOT of air. Which supprised me... it means that the 900 is breathing thru a straw.. If this dosent make sence ask me some questions... I do believe this is a fix everyone should do... AT LEAST the 3/8 Hose (if your a sand dunes guy), If you want free power use the 1 1/2 hose idea too... Hooty
Last edited by Hooty222; December 17th, 2015 at 09:28 PM.