zr1 cam
This is just my personal experience but here is my set up:
86 Monte Carlo SS
JY 5.3 from a 99 Tahoe
LS1 Intake
80 Lbs Injectors
Truck manifolds facing forward
Master Power T70 turbo with .68 A/R Exhaust Housing
LS9 Cam
Pac 1218 valve springs
4L80E controlled by a US Shift controller
MegaSquirt II running fuel and ignition
Bosch 044
Cooling Mist Meth injection
With this very simple setup the car is a beast.
I don't have dyno numbers but I can tell you that it is very stout from a seat of the pants view.
At 7 lbs of boost the car is an animal.
At 12 lbs of boost the car is very scary.
At 18 lbs of boost it is dangerous, no joke. There is a spot on the interstate close to my house that has a pair of tire marks I left that are easily over 600 feet long and could have been a lot longer if I had bigger *****, it was done when I floored it at 70 MPH and it blew the tires off. I didn't realize how much rubber I had left until I went back the next day and started laughing my *** off at the hundreds of feet of rubber the car put down so easily.
The cam does make good power and idles as smooth as silk.
Again, this is only my personal build and since I don't have a dyno sheet or timeslips you should take it for what it is worth.
86 Monte Carlo SS
JY 5.3 from a 99 Tahoe
LS1 Intake
80 Lbs Injectors
Truck manifolds facing forward
Master Power T70 turbo with .68 A/R Exhaust Housing
LS9 Cam
Pac 1218 valve springs
4L80E controlled by a US Shift controller
MegaSquirt II running fuel and ignition
Bosch 044
Cooling Mist Meth injection
With this very simple setup the car is a beast.
I don't have dyno numbers but I can tell you that it is very stout from a seat of the pants view.
At 7 lbs of boost the car is an animal.
At 12 lbs of boost the car is very scary.
At 18 lbs of boost it is dangerous, no joke. There is a spot on the interstate close to my house that has a pair of tire marks I left that are easily over 600 feet long and could have been a lot longer if I had bigger *****, it was done when I floored it at 70 MPH and it blew the tires off. I didn't realize how much rubber I had left until I went back the next day and started laughing my *** off at the hundreds of feet of rubber the car put down so easily.
The cam does make good power and idles as smooth as silk.
Again, this is only my personal build and since I don't have a dyno sheet or timeslips you should take it for what it is worth.
I would be very surprised if you aren't maxed out on that MPT70 at 14-15lbs. Do you have a way to log IAT's? Mine was done around 13lbs on my 5.3.
