Nathan:
If you replace the lifters, you MUST replace the cam. If you
fail to do so, your cam won't make it 2,000 miles before you lose a lobe.
Any reputable cam grinder will at least offer the option to
have the regrind nitrided or otherwise hardened, so to be safe have
the cam hardened.
Shorter pushrods are available from Rimmer Bros, I believe.
I understand that you can have your existing pushrods shortened, but
I do not know the tradeoffs involved.
The S2 might be a bit stout for a daily driver. David Vizard says
the limit for a street cam is 270 degrees advertised duration. If you
want to go to a stronger cam, try the TR5 cam (269 duration) which is
within his recommended limits. There are several cams that fill
the bill. Go here: http://triumph.hottr6.com/tr6cams.html
Cheers,
Vance
---------------------------------------
The most likely way for the world to be destroyed, most experts agree, is
by accident. That's where we come in; we're computer professionals. We
cause accidents. - Nathaniel Borenstein
-----Original Message-----
From: Nathaniel Steiner [mailto:nathaniel_steiner@hotmail.com]
Sent: Monday, May 19, 2003 10:47 PM
To: 6pack@autox.team.net
Subject: Now what?
<snip>
Anyhow, now on to my quandary. I started pulling out the lifters to clean
them. All 12 are pitted and dished on the bottoms...uh-oh. No question
that they are not going back in. Do I condemn the (early) cam as well?
There is almost no visible wear on the lobes, it would surely be a good core
for a re-grind. That brings me to my next question, what do I do for a
replacement cam. I have considered a performance re-grind like the S-2 or
GP2, mostly because the price is right, but I am a bit gun shy about running
a re-grind. Will one of these hold up? Are they re-hardened? I also plan
to substantially increase my compression as long as the head is off, and
because I am considering a longer duration cam. At 3.535" the head seems as
thick as, or even thicker than my skull. I will shoot for about 9.0:1
compression, 9.5:1 max. Anybody know of a reasonable source for shorter
pushrods? Comp Cams and Crane used to make a DIY pushrod kit. Anybody try
one of these? Are they still around? I have the technology to accurately
face tubing to length so shortening a press together tubular rod shouldn't
be a problem.
<snip>
Nate Steiner
CF140U
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