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:
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"
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
60 ABDC
In
dur : 243
dur : 243
Ex opens 52 BBDC
closes 11 ATDC Dur: 243
closes 11 ATDC Dur: 243
Valve timing @ .050" In opens -29.5
BTDC Closes 27.5 ABCD In,
.050 Dur: 178
BTDC Closes 27.5 ABCD In,
.050 Dur: 178
Ex opens 19.5 BBDC closes
-21.5 ATDC Ex .050" Dur: 178
-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.
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.
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.
0
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