4W1765 THE GOOD THE BAD & THE UGLY

1st Post,

Looking for real life experiences, regarding Caterpillar's Camshaft 4W1765 (AKA) 4W2430 High Lift
I know they're hard on the Valve train Assembly.
High Lift & Long Duration - exhaust lobe

But how do they stack against CATs other B-C model Cams Performance wise?

This Cam was last used 38 years ago (1987) in CAT truck engines 7FB rated @ 350-400hp JWAC.
There's Marine and Gens that are rated with much higher HP and valve train friendly Cams,
But I'm interested in the Performance Capabilities of the Old Iron.

Thanks,

 

Thanks for your time.

To address the deflection,
I was going to see about possibly getting heavier push rods and heavier dual springs to stay in contact with the ramp speeds.
@ 17liters displacement my thoughts are for a high ramp, long duration camshaft for optimizing airflow into & out of the combustion chamber. Longer duration means the valves stay open longer, allowing for more air and fuel to enter and exhaust to exit.

 

I'm not familiar with the ECM CATs, but thanks for pointing out that they all rum the same profile. So is it in the injection lobe where they make the changes for 800 & 100hp marine cams.
As far as piston & injector matching, I was just going to use a new set of 130-5187 injectors that I've had good success running for the last 12 years with modifications to the pistons using a CAD program I made years ago.
As far as fueling this monster, I have my concerns.

 

yeah, for the Injection pump I will be using the C model with the cam driven lift pump Removed and a block plate Installed
the appropriate check valves and springs for the plunger and barrels along with Governor springs yada yada yada. Fuel will be supplied with a E model style fuel pump and regulated at 60 psi to prevent the side cover from blowing a gasket.
With this being regulated in this manner with those injectors when the engine demands fuel delivery, it maintains the set PSI instead of it dropping like it would With the original style tappet cam driven fuel pump

 

I know by increasing the displacement with the Bore and stroke. The limitations are in my fuel delivery. It has been quite sometime since I’ve heard of any oversized P&B.’s being available.