<VV> The 304 cam's intent!

[tony.underwood at cox.net]

---- Bryan Blackwell <bryan at skiblack.com> wrote: 
> Bear in mind the 95 heads don't work well unless you set them up for  
> quench - I believe you did that.  

Well, OK I did tweak it a bit.    Still, any quench at all will be better than no quench if detonation is constantly looking for an excuse to come knocking on the door.   


> I'm not so sure that the open heads  
> are worse than as delivered 95 heads.

They're partly to blame for the BIG static timing increase and they do present inefficiency what with lighting the charge from one side of that bowl and waiting for it to walk across the rest of the chamber by which time the piston is already getting set to drop down the hole before the entire charge has even finished burning.    Lighting the charge earlier to compensate for the bowl chamber's (relatively speaking) inefficient flame travel is partly the cause of the detonation issue that late turbos have to deal with.   And, it has been my experience that late turbos tend to ping worse than early turbos, had dealings with 'em both.  

Now, IF you have access to some good premium fuel you can deal with it well enough...   ;)  


tony..