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Neglected to mention I have a Lempert 3.54 diff in my car, so the
lower torque curve is helpful.<br>
<br>
<div class="moz-cite-prefix">On 4/15/2017 7:17 AM, Bob Spidell
wrote:<br>
</div>
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<p>Hi Dave,</p>
I just finished a rebuild on my BJ8; my engine--with over 100K
miles--was in similar condition to yours with significant cam lobe
and lifter wear. I installed a DWR1 cam; it's more appropriate if
you're really ' looking for stock or mild tune only.' The DWR1
is 'slightly better than stock', in DWR's word's, and should be
most appropriate for a street/touring car as the torque curve is
lower. I don't think you'll gain much if anything with the DWR8
unless you at least use headers and port your head--or buy one of
DWR's alloy heads--and then additional tuning is required. Steve
G.--on this list, I believe--is doing a build with a DWR8 cam, but
he has headers and the rest of his engine is likely tuned for the
higher torque/power band. The DWR1 doesn't want to go much over
4,500RPM, but I do mostly long distance touring so I'm usually
running 2,500RPM, give-or-take. I do a lot of driving '100 miles
from nowhere' so I generally go pretty easy on my drivetrain.<br>
<br>
DWR recommends their High Capacity oil pump when using their
gun-drilled cam, unless you're going to spend time over 6,000RPM
(in which case you'll probably want their billet crankshaft,
conrods, pistons, etc.). Since you had cam/lifter damage, be sure
to clean all components--e.g. rocker shaft--thoroughly to remove
any debris. My builder was adamant about that. You can use
either 'standard' lifters with your current pushrods, or get
bucket lifters and their pushrods. I went with standard. I
sourced an adjustable, vernier timing set from Australia; my
builder said the cam did require some adjustment.<br>
<br>
DWR Support has a chat facility; they are very responsive but, of
course, there's a significant time difference. Whichever cam you
use, please let us know your results.<br>
<br>
Bob<br>
<br>
<div class="moz-cite-prefix">On 4/15/2017 4:12 AM, <a
moz-do-not-send="true" class="moz-txt-link-abbreviated"
href="mailto:drmasucci@comcast.net">drmasucci@comcast.net</a>
wrote:<br>
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type="cite">
<div style="font-family: Arial; font-size: 12pt; color: #000000">
<div>Hi All,<br data-mce-bogus="1">
</div>
<div><br>
</div>
<div>Well now that spring is here, I am resuming the rebuild
of my BJ8 engine. The engine was rebuilt back in 1999, but
since I'm doing a full resto of the car, I decided to take a
look at the engine. While all other parameters were well
within spec, the cam and lifters were damaged. Back then I
didn't know much about modern oils and the lack of zinc, and
since that's the only part of the engine that didn't do
well, I am assuming that must be why.<br>
</div>
<div><br>
</div>
<div>So I am now trying to decide what to do. I can have my
cam reground, or buy new. Since I believe it was already
reground and based on the wear, I am thinking maybe new is
the best choice. I am looking for stock or mild tune only. <br>
</div>
<div><br>
</div>
<div>I am not a pro engine builder, but I know the basics and
am not new to the process. I know that if I change something
like the cam parameters, I need to understand how that
affects the rest of the valve train. I looking for guidance
on selecting the right components.</div>
<div><br>
</div>
<div>I am considering the Welch DWR8 cam and lifter package. I
understand that I will have to machine pockets into the
block for valve clearance. I will be having the head rebuilt
to basic stock parameters as far as the valve gear is
concerned. I need to determine how to select the correct
pushrods. Since this cam is drilled to feed oil to the
lobes, do I need to make other modifications to support that
feature? <br>
</div>
<div><br>
</div>
<div>So I'm looking for some feedback and recommendations from
the list. Has anyone followed a similar path on their 6
cylinder Healey? Any opinions, cautions, or advice would be
appreciated. Is this cam my best choice? Also if there are
better options to consider I'd like to hear that also. <br>
</div>
<div><br>
</div>
<div>As usual, thanks in advance for any help.<br>
</div>
<div><br>
</div>
<div>Dave<br>
</div>
<div>64 BJ8<br>
</div>
<div>72 XJ6<br>
</div>
<div>72 Bonneville<br>
</div>
<div><br>
</div>
<div> <br>
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