> Brad Wagenhauser wrote:
> 1. Engine is low hours and quite tight - what max static RPM should I
be expecting with a 52 x 48 prop?
-It depends on who made the prop....they vary more widely than you would
think. A good place to get an idea is to take a look at what others
have done, at
http://www.krnet.org/kr-info.html.
> 2. Was this engine built with hydraulic lifters?
-Almost certainly not. That's a very special build, especially back then.
> 3. Was this engine built with a standard cam and standard 1:1 ratio
rockers?
-Hard to say about the cam....HAPI wasn't famous for high quality, so
stock would not surprise me. I compared about 25 cams to find the one
with the highest lift and shortest duration when I built mine, a
standard 1:1.1....a real stump puller cam where the power is way down
low on the RPM scale.
> 4. What is the max EGT figure?
-Depends on where the probe is, but GPASC says do not exceed 1400F,
1050F-1200F at cruise, which I think is way conservative. My alarm is
set to 1375F
> 5. Any recommendations for mild tune upgrades that'll maintain
reliability for the 1835 HAPI?
If you need heads, don't waste your money on anything but Revmasters.
Mark Langford
[email protected]
http://www.n56ml.com
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