NPP Question.
Thread Starter
Le Mans Master
Joined: Nov 2009
Posts: 5,687
Likes: 212
From: Mo.
NPP Question.
I did a search and did not get a definitive answer.
Am I correct that with the Actuator removed the stock exhaust will be left in the open (loudest) position?
I have a friend who wants to put an NPP system on her base car that does not have the Actuators and wants it to be louder than the base system.
Thanks!
Am I correct that with the Actuator removed the stock exhaust will be left in the open (loudest) position?
I have a friend who wants to put an NPP system on her base car that does not have the Actuators and wants it to be louder than the base system.
Thanks!
Safety Car
Joined: Dec 2012
Posts: 3,851
Likes: 1,861
From: St. Louis Metro East IL
The external electric actuator moves the butterfly valve inside the pipe. The actuator spring returns the valve to OPEN position when there is no power applied to the actuator. If the actuator is removed you will have to fix or lock the valve in the OPEN position mechanically.
Ron
Ron
Safety Car
Joined: Dec 2012
Posts: 3,851
Likes: 1,861
From: St. Louis Metro East IL
If you move your pipes over with the actuators they will hold the valves open. I have the stock NPP system and have pulled the fuse to keep the valves open. Since you will install your system on a car without NPP there will be no wiring / voltage to ever open the valves.
I have not tried to lock the valves open mechanically since I have the factory NPP actuators. I doubt it would take more than a flat piece of steel with a couple holes for mounting screws in place of the actuator and a slot for the valve stem to lock the valve in position...
I have not tried to lock the valves open mechanically since I have the factory NPP actuators. I doubt it would take more than a flat piece of steel with a couple holes for mounting screws in place of the actuator and a slot for the valve stem to lock the valve in position...
