Even combustion in an Oz 2V?

[addo]

Those running an Oz 2V - I need your input! Do you run rich or lean on any cylinders? Based on plug reading or header appearance; doesn't matter. Post away.

Even if you have an uninstalled head - care to diagnose the plugs or valves or ports for me?

Thanks, Adam.

 

[CobraSix]

I have some pictures of my plugs somewhere, let me find them and post them. If I recall correctly, I still ran slightly lean on the #1 and #6, but nothing nearly as bad as my Log head. I'll update when I find the pictures.

Slade

 

[CobraSix]

Okay...picture warning...information overload:

These are my plugs with the following info:

9.5:1 CR
Comp Cams 260
OZ head
390 CFM Holly 4V
Enlarged valves

This is after an average of driving aroung town and highway:


#1

#2

#3

#4

#5

 

[mustang6]

These are my plugs

Either you forgot one plug's picture or we have found the source of your rough idle....

 

[addo]

It's marginal; less difference than I envisaged. Thanks for that. Hope someone else can report their findings!

 

[red(neck+truck)]

These are my plugs

Either you forgot one plug's picture or we have found the source of your rough idle....

i was thinking the same thing

 

[CobraSix]

I couldn't find my #6 pictures, but recall they looked the same as #1. But thanks for your concern...smartass!

I have some when I did a WOT test too, let me dig those up.

Slade

 

[addo]

I've been poking and probing a standard 2V fanimold this week and noticed in the short side radiuses of 5 and 6 especially, a thick sooty buildup compared to other cylinders.

Perhaps this is due to the direction of the throttle blades opening, and the cumulative effect of a generous accelerator pump.

Once you start looking at the manifold, there are a lot of little things which are non-symmetrical; it's interesting. That is also partly why I've been wondering.

 

[CobraSix]

adam,

remember, my manifold has been converted to a 4V manifold with the throttle plates parallel to the crank and the primaries further outboard then the secondaries. That may make a difference. We oriented that way so that the primaries were pretty much equidistant from all the intake valves.

Slade