Which one?

[james22]

Finally narrowed my cam choice after extensive research. So simply, which do you think would benefit more. I'm after an overall power and torque increase.

Current mods are;

− PH - 4001 Pacemaker Extractors (Tri-Y)
− STD Press Bent 2 -1/4" Exhaust - Single Hi flow Muffler
− BPT Powerstat
− BPT 12mm Phenolic Spacer
− K & N Hi Flow Panel Filter


1. 621317 - Crow
IN.26/64 | DUR 287 | 0.50" DUR- 222 | LIFT .538
EX.66/24 | DUR 279 | 0.50" DUR- 217 | LIFT " "
Medium cam for manual trans.


2. 2031 - Crane / Powermax

Intake @Cam 302 @Valve 513
Exhaust @ Cam 311 @Valve 529

Cam Timing: TAPPET @.050
Lift: Opens Closes Max Lift Duration
Intake 0.0 BTDC 34.0 ABDC 107 214 °
Exhaust 47.0 BBDC (7.0) BTDC 117 220 °

.

Pros and cons for both?

[james22]

Also another question for AU V8 owners.

Am I correct in assuming that when you connect an oil catch can, you run the pipe from the PCV valve at the rear of the motor to the catch can, then from the catch can back underneath the manifold??? Where the PCV was hooked up to???

[RG]

Originally Posted by james22

Also another question for AU V8 owners.

Am I correct in assuming that when you connect an oil catch can, you run the pipe from the PCV valve at the rear of the motor to the catch can, then from the catch can back underneath the manifold??? Where the PCV was hooked up to???

I hooked mine up from the TB to the catch can then from the catch can to the oil filler neck, replacing the hose from the filler neck to the TB. I did it that way because I found most of my oil was collecting in the TB suggesting that is how it was entering my intake.

[james22]

Well, I'm leaning towards the crow cam. Are the springs and retainers here any good?

http://www.crowcams.com.au/templates...dsor-EFI.shtml

1 x 621317 camshaft

Set of 7738 valve springs (crow)

Set of 11700-XR8 Performance Retainers, 8 std,8 +0.100"


What does this mean?

Heavy Duty Springs (use 11710 ret on Ex.)

[AU2PWR]

James , your probably going to get a Stronger answer asking The Site Sponsors .. Just a Suggestion

[b2tf]

Originally Posted by AU2PWR

James , your probably going to get a Stronger answer asking The Site Sponsors .. Just a Suggestion

yeah right, half of them dont even check their forums for months on end.

James go the Crow and get the parts kit K6201, dont use Crane Valve Springs - heard a few horror stories about them.

[XH5LWEPN]

Yeah mate, run the catch can between oil filler neck and t/b breather.

When the cam is fitted etc, are you going to use a flash tune?

[stiddy]

my suggestions.

Cam Style: Hydraulic roller tappet
Basic Operating RPM Range: 2,500-6,000
Intake Duration at 050 inch Lift: 224
Exhaust Duration at 050 inch Lift: 232
Duration at 050 inch Lift: 224 int./232 exh.
Advertised Intake Duration: 286
Advertised Exhaust Duration: 294
Advertised Duration: 286 int./294 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.542 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.563 in.
Valve Lift with Factory Rocker Arm Ratio: 0.542 int./0.563 exh. lift
Lobe Separation (degrees): 112
Intake Valve Lash: 0.000 in.
Exhaust Valve Lash: 0.000 in.

OR

(Too wild for what your after I think)
Cam Style: Hydraulic roller tappet
Basic Operating RPM Range: 3,200-6,800
Intake Duration at 050 inch Lift: 236
Exhaust Duration at 050 inch Lift: 248
Duration at 050 inch Lift: 236 int./248 exh.
Advertised Intake Duration: 298
Advertised Exhaust Duration: 310
Advertised Duration: 298 int./310 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.574 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.595 in.
Valve Lift with Factory Rocker Arm Ratio: 0.574 int./0.595 exh. lift
Lobe Separation (degrees): 110
Intake Valve Lash: 0.000 in.
Exhaust Valve Lash: 0.000 in.