LT4 hotcam - Third Generation F-Body Message Boards

Firebird sweden · 06-06-2009, 07:06 AM

Hi!
I have been driving a LT4 hotcam for 2 years now and i wounder if i chould downgrade to 1.5 rr instead of my 1.6,i would like to get some more tourque out of it.
I alsoe read that its no good whith to much of lift.

Vader · 06-06-2009, 12:03 PM

Changing to 1.5 rockers will reduce gross lift, and will slightly reduce duration (we can argue later if anyone wants to challenge that statement). The change in lift and duration will not change the valve timing more than a degree, and that's what is really necessary to move the torque band.