Moving the MAF sensor with an ATI kit? (intake or pressure side?)
Moving the MAF sensor with an ATI kit? (intake or pressure side?)
With the ATI kit the MAF get moved to the Intake side of the blower. They where having some issues with a rough idle and some hesitation in higher RPM so they moved the MAF to pressure side and got more power and a much better Idle. They say they always rout it on the pressure side when they do supercharger kits. Doesn’t the ATI have a by-pass valve that vents to the atmosphere or something? Doesn’t this mean the MAF has to be in a certain spot? Am I gonna run into problems with the move of the Mass air flow sensor? Any info from you pros would be greatly appreciated.
Thanks, Jason
Thanks, Jason
Last edited by JasonS; Apr 3, 2003 at 05:28 PM.
Before my motor broke and I put the kit on. I did it like ATI said and had the MAF on the suck side and it had really bad idle problems. It would surge from 500-1500rpm all the time pretty much.
I moved the MAF to the blown side using a 3.5-4" adapter hose and a Vortec elbow. When you do this you can have the bypass routed like it was or open to the air (although its going to be louder because of it being open)
The reason it has to be routed back into the system with the MAF on the suck side is that you can not have any air going into or out of the system that hasn't been thru the MAF sensor then you are not going to get a true air flow reading. So with the MAF on the blown side you can vent it to the air because it will have blown off before it gets to the MAF and the sensor will get a true reading of what is actualy going into the motor.
I moved the MAF to the blown side using a 3.5-4" adapter hose and a Vortec elbow. When you do this you can have the bypass routed like it was or open to the air (although its going to be louder because of it being open)
The reason it has to be routed back into the system with the MAF on the suck side is that you can not have any air going into or out of the system that hasn't been thru the MAF sensor then you are not going to get a true air flow reading. So with the MAF on the blown side you can vent it to the air because it will have blown off before it gets to the MAF and the sensor will get a true reading of what is actualy going into the motor.
I just cut out 3" 1/2 inchs out of the long side of the pipe that goes from the intercooler to the top side of the car and used a 3" 1/2 inch to a 3" reducer that I got at home depot .It worked out great ,the car runs much smoother and makes more power.........and it only cost me about 10 bucks.
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Rich_z28
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Aug 29, 2002 10:44 PM



