Finally getting there... :)

[JShadzi at aol.com]

In a message dated 11/21/00 2:32:41 AM Pacific Standard Time, 
gerard at poboxes.com writes:

<< 
 Now I'm really interested on why solids are better than hydraulics. If
 maintainance wasn't an issue, what would be the best for a hard pulling
 performance engine? Don't take into account that I am currently going
 for factory to start with. :)
  >>

    Hyd. lifters do have problems at high RPM (we are talking 7k RPM +, 
somewhere you will never take your motor, the rev-limiter will see to that).  
They pump up and will actually hold the valve open, not allowing to close all 
the way.  You should remind your mechanic that valve float is more likely a 
function of valve spring stiffness, not lifter type.  Sure, if you wanted to 
be really esoteric (and it sounds like you mechanic has an esoteric shoved up 
his #$%), you could argue that solid lifters are better.  That esoteric point 
is very mute on the street, you are looking for performance and reliability, 
something which hyd. lifters will give you.
    There is also another consideration you could argue back to your 
mechanic.  What kind of solid lifter is he proposing to you?  If they are the 
standard, factory lifters with shims, you could argue back that even those 
will spit shims at really high RPM, and the only correct solid lifter would 
be a solid bucket that shims on top of the valve stem.
    To be honest, it just sounds like he is trying to squeeze you for more 
labor.  Insist on using hydraulic lifters, and spend the money on something 
else that will actually *improve* performance, like a good set of tires  =)
Javad