npp actuator adjustment
Thread Starter
Instructor
Joined: Aug 2010
Posts: 198
Likes: 2
From: youngstown ohio
npp actuator adjustment
I have ZR1 NPP mufflers and there is an adjustment on the rod on the actuator . Has anybody adjusted those rods ? Seems to me if you make the rod shorter the butterflies in the muffler tips would stay open a little bit ... ANYONE ?
Instructor
Joined: Jul 2007
Posts: 140
Likes: 36
From: Northern Indiana
You can get collars that allow the NPP to be open a little bit all the time.
http://forums.corvetteforum.com/c6-c...t-collars.html
http://forums.corvetteforum.com/c6-c...t-collars.html
Safety Car
Joined: Apr 2010
Posts: 4,231
Likes: 451
From: Maryland
My car does not have NPP and the factory adjustment is most likely right but without vacuum the adjustable arm will extend, with vacuum the arm will shorten. For performance adjust so the baffle/butterfly opens parallel with the opening and hopefully it will also close all the way or adjust vise-versa.
Team Owner
Joined: Jun 2005
Posts: 46,295
Likes: 2,596
From: Northern, VA
St. Jude Donor '15
"In honor of jpee"
You can get collars that allow the NPP to be open a little bit all the time.
http://forums.corvetteforum.com/c6-c...t-collars.html
http://forums.corvetteforum.com/c6-c...t-collars.html
