Thanks Herb
Larry
Herb Lumpp wrote:
Larry,
Schubeck recommended a light to almost no preload on his lifters, so I went
with my normal zero preload. Even with a hydraulic flat tappet, the zero
preload works fine (in my experience) if a little extra noise doesn't bother
you. When I adjust the valves, I'll spin the pushrod with my finger tips
while I tighten the rocker until there's the slightest drag on the pushrod.
Then I tighten the poly loc and move to the next valve. I've never lost a
lobe and I haven't experienced valve float with a hydraulic cam. I'll keep
doing it that way until something breaks, then I'll reevaluate my procedure.
:)
The Schubeck lifters are pretty cool. Even though I had some trouble with
them in the beginning, they seem to be working as advertised now. The down
side to them is they come with a premium price - about $60 each, plus $100
for the drill fixture, and a seemingly endless wait after you order them.
Some other things I added for high rpm safety are a Moroso blueprinted high
volume oil pump (the Schubeck lifters bleed off a lot of oil), an ARP oil
pump drive, 6 qt pan w/ Redline synthetic oil, a diamond stripper windage
tray, ARP main studs, and a precision balance job performed by Scat. Oh,
and a K&N oil filter with a plugged by-pass so 100% of the oil is filtered.
Herb
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Larry Williams
Sent: Wednesday, December 21, 2005 8:46 PM
To: The Chevelle Mailing List
Subject: Re: [Chevelle-list] What to do with my 396??
Herb,
I have had discussions for hours about the preload on my BB. GM says
1/2 turn. I have used from 1 turn to 1/4, but never used zero. Not
even Comp Cams will go there. I will try Zero for my next trip to the
strip. I do realized that you have other components that aid with your
performance. Especially the light rollers. Really cool! Just hope I
don't blow the BB up winding it past 6K possibly to 7K. I have cast
stuff, but I am willing to go for it.
Larry
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