10V head mod qustion

[Konstantin Bogach]

What is estimated performance gain from 40mm intake valves mod?

Thank you.

Konstantin.


ed armstrong wrote:

> I rebuilt my MC head recently and installed bigger
> 40mm intake valves. The head and motor are not in a
> car yet but I think the upgrade can only help a turbo
> motor. I don't think you can get bigger sodium exhaust
> valves than stock. Even if you could there in not much
> room to fit them.
>  -ed
>
> --- Konstantin Bogach
> <konstantin.bogach at morganstanley.com> wrote:
> > I searched archives on subject of bigger valves but
> > I could not find
> > much on turbo engines. There is discussion on NA
> > engines but not much on
> > turbo.  So, what is general consensus on installing
> > bigger intake or
> > exhaust valves?  Is it worthy to do that on these
> > cars ?
> > Can I use not sodium filled valves in this cars?
> > What is a downside?
> >
> > I have neither experience nor theoretical knowledge
> > in
> > technology/materials used in building heads.  I use
> > Napoleon's tactic -
> > engage first then see what you can do.  I engaged
> > already by planning
> > taking head off my car tomorrow.  Now... I will
> > appreciate if someone
> > point me to ABC of head rebuilding (if such write-up
> > exists in first
> > place).  I also need a good source for rebuld kit
> > for K-26.  I called
> > ont place - $125. Sounds like big $$$.
> >
> > Thank you.
> >
> > Konstantin Bogach.
> > 200tq '89
> > 200tqa '89
> >
> >
> >
>
> __________________________________________________
> Do You Yahoo!?
> Find a job, post your resume.
> http://careers.yahoo.com