Rich stated:
>I find myself mysteriously unable to determine if head porting
is
>allowed in the Prepared Category section of the 1999 Solo Rules.
Interesting you should bring this up. I read all the engine rules
in P, and I couldn't find any allowance for porting.
>Then we have the blanket counter statement for engine parts:
>15.10 Engine and Drive Train
> A. Component Modification
> 1. Original and alternate components of the engine may
be
> ligtened, balanced, and modified by any mechanical
or
> chemical means, provided that it is always possible
to
> identify required components as original.
I hadn't noticed that, however. I'd say that porting is "modified
by any mechanical or chemical means," wouldn't you?
>Then we have a section on the head itself:
>15.10.H Cylinder Head
> 1. The original or a specified alternate cylinder head
shall be
> used. Any valve guides and valve seats may be used.
> 2. Compression ration may be altered by machining, using
any
> head gasket(s) or elimination of head gasket(s).
>So is the cylinder head a component under 15.10.A.1?
It would have to be. 15.10.H.1. and 2. are additional to the
previous allowance, and the first part of 2. is redundant with
15.10.A.1
>And, curiously, how about this? JAE is taking Stromberg
big-valve
>heads, cutting the (dare I say it?) intake manifold off of them,
>milling the side of the head, and bolting a plate with intake
>manifold and Webers to it.
So's Dave Bean.
> Instant big-valve Weber never sold in
>the US. Legal for AP?
I'd say yes, but don't trust me.
Jay
|