Pontiac GTO Forum banner

1 - 3 of 3 Posts

·
Registered
Joined
·
42 Posts
Discussion Starter #1
So genius me decided to swap a cam into my 06 GTO. Went with the torquer 2 from Tick Performance. While I had the front of the engine off, I replaced the water pump, alternator, and was going to replace the oil pump until i discovered that the oil pan has to come off to do that. (Which requires pulling the engine). The oil pump is dirt simple to replace, it's the oil pick up tube that poses the problem. It has two bolt holes on a flange and two threaded holes in the oil pump but GM in their wisdom decided to put only one bolt in to hold the pick up tube flange on. And, just to satisfy their sense of humor, the chose the lower hole. Which you can't get to with the pan on. ARRRGGHH.

But here is my lesson learned: I also bought the FAST LSx 102 mm intake manifold along with the Nick Williams 102 MM throttle body. What I failed to do was the math. My new cam is: Intake 231 degrees of duration with .60598 lift with standard 1.7:1 rockers. Exhaust: 235.4 degrees of duration with .60598 lift. There is no possible way that I can use all that air with the cam I have. As a matter of fact, because this cam is a mid range torque setup, I'll probably loose plenty of torque and power unless I spin the motor to very high RPM. STUPID mistake.

Thought I would share in case any of you had a similar itch. Stock intake setup going back on....
 

·
Premium Member
Joined
·
70 Posts
Reminds me of my first car a 70 Camaro that had a good Edelbrock dual plane manifold and I swapped it for a tunnel ram I soon went back to the dual plane.
 

·
Registered
Joined
·
42 Posts
Discussion Starter #3
I reverted back to the OE 90 mm throttle body but left the FAST 102 in place. Got it back yesterday from PBJ here in St Louis.

Dyno graph is posted below. From the factory these cars make 400 / 400 at the flywheel. That translates to about 335 / 335 at the rear wheels. With my current setup, I’m at 396 torque / 440 HP at the wheels. This thing is damn fast now. With the Firestone 275 35 18’s on the rear I can get the power to the ground pretty well. I can’t believe it, but I think I’m finally done.
 

Attachments

1 - 3 of 3 Posts
Top