Deleting secondary throttle plates? - ZR-1 Net Registry Forums

Paul Workman · 01-08-2008

Still climbing the leaning curve here...

Just learning more about our LT5s, I see that in some cases the secondary throttle plates are removed for improved performance (presumably). I found this interesting, as at first blush there seem to be several possible locations for trouble to develop - what with having 4 discrete signals required from the ECM to the respective injector (pair) relay to allow the secondary injectors to work (in pairs), the mechanical issues inherent with the secondary throttle plates and the acuation thereof, etc, etc.

The obvious advantage would be the "kiss principle", I recon, but I would appreciate some enlightenment on this particular procedure, and how it is accomplished e.g. are all injectors running "full time"? What does this do to the torque curve by comparision, etc, etc?

In other words...What is the problem and how well does this procedure address it?

P.

01-08-2008	#1
Paul Workman Join Date: Nov 2007 Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri Posts: 6,493	Deleting secondary throttle plates? Still climbing the leaning curve here... Just learning more about our LT5s, I see that in some cases the secondary throttle plates are removed for improved performance (presumably). I found this interesting, as at first blush there seem to be several possible locations for trouble to develop - what with having 4 discrete signals required from the ECM to the respective injector (pair) relay to allow the secondary injectors to work (in pairs), the mechanical issues inherent with the secondary throttle plates and the acuation thereof, etc, etc. The obvious advantage would be the "kiss principle", I recon, but I would appreciate some enlightenment on this particular procedure, and how it is accomplished e.g. are all injectors running "full time"? What does this do to the torque curve by comparision, etc, etc? In other words...What is the problem and how well does this procedure address it? P. Last edited by Paul Workman; 01-08-2008 at 03:48 PM.