Camshaft specifications.








For those that requested the data on the Super Six
cam grind as re-profiled, here are the details, if you can understand
them:

Lobe separation: 114.5 Lobe centre line Inlet:
118.5, Exhaust: 110.5   Inlet lobe lift at T.D.C. on overlap
0.008"

In. lobe and ex. lobe lift: .298

Valve timing @.008"; In opens 3 BTDC,  closes
60 ABDC

            In
dur
 : 243

    Ex opens 52 BBDC  
closes 11 ATDC   Dur: 243

 

Valve timing @ .050"  In opens -29.5
BTDC   Closes 27.5     ABCD     In,
.050 Dur: 178

    Ex opens 19.5 BBDC  closes
-21.5 ATDC  Ex .050" Dur: 178

 

Remarks: Smooth idle, approx RPM  power range
1200 to 3600+.  Designed to improve economy and torque. Increased
compression ratio may be required for maximum output.  Good all-round
performance cam.

 

 

Most of the above is double-dutch to me. 
However I do know it made a considerable difference to my '29 Hudson.  I
reckon the  power output is at least 20% better than before, and m.p.g. has
averaged 17  since I fitted this cam. Previously I was struggling to get
13-14 m.p.g.   Hills I used to have to change down on I now fly over in
high gear.   I am running oversize wheels (650.19) on my 7 passenger
sedan, and the high ratio diff (53/13), and  can cruise happily at 55-60
m.p.h., and climb most hills  except the real steep ones in top gear
now.

Geoff.
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