[Sidecarbod]

Hi Guys,

I've never been very happy with the valve preload on my RV8 as I used shims and found that it was impossible to set the valves up as accurate as I wanted to.

I am planning to buy a set of adjustable push rods from someone like Real Steel. (Unless anyone has a set for sale!)

My questions are:-

1. What is the advantage of going for the larger diameter rods baring in mind that the holes in the heads will need to be opened up.

2. I understand that the larger rods must be stronger but at what point are they needed?

3. Would it be true to say that the more clearance there is between the snap ring and rod seat plunger the sooner the valve will start to move off it seat as the cam follower starts to move? i.e. similar to running LESS clearance in normal tappet set up.


The reason that I would like to understand how the clearance effects the valves is that I would rather ensure that the valves are fully closed and this would mean running LESS snap ring clearance unlike a normal setup which would require setting up at the larger end of the specified range.

I was thinking of going for 40 thou, my motor runs V8 Development stageIII heads with whatever springs they use and a typhoon cam. I think that some of my valves are over 60 thou at the moment

Any help would be appreicated.

Pete