[pharmd]

Ok, with the stock pulley on we made 6psi of boost, with the new cam vs the MAST VVT cam. We decided to go with a different cam, as the size of the MAST cam was dropping boost to around 5psi, as well as idleing at a much higher kpa. My wife had commented about the MAST cam saying it probably was not a "wife approved" cam....so we changed...Gotta keep mama happy.

**ALL runs performed on Stock CAI**

New #'s and Graph post #22

The numbers...with stoc
k pulley (3.3")
MAST cam/TVS 1900 (5psi) L92 cam/TVS 1900 (6psi)
465rwhp 476rwhp
444rwtq 454rwtq

So we swapped on a smaler pulley (3.0")
L92 cam/TVS 1900
493rwhp
480rwtq
This made 8psi on the low end, but as the engine started to breath boost peaked at 7.5psi.

To get an idea of how much the intake system is we **removed stock CAI**
and ran it in SD tune...again 7.5psi
518rwhp
487rwtq

I'm ordering a 2.9" pulley tomorrow and we will retune. My tuner feels confident with what he has seen from this car and from other LS3 derived motors that it should be fine at that boost level...It probably will make around 8.5psi with the 2.9" pulley. With a good CAI, and 8.5psi, we should be around 530rwhp+/-...

Also, note that the L92 cam (224/230 114) did NOT make any additional power over the MAST VVT cam, it did however allow for a lower idle rpm and lower idle MAP kpa (from high 70's down to low 50's).

So far we have gained roughly 200rwhp since we started...BTW this is a Dynojet, but it is well known to be a lower reading dyno (compared to other local dynojets) so keep that in mind.