Roller Cam System from Len Fanelli
Advantage roller cams have over flat lifter cams is much more important
from a performance standpoint. A roller lifter can handle a much steeper
ramp on a cam lobe than a flat bottom lifter. This allows roller cams to
open the valves more quickly so they can reach maximum lift earlier in
the timing cycle. When you plot valve lift and duration on a graph, the
area under the curve of a roller cam with an aggressive lobe profile
will be greater than that of a flat lifter cam for the same lift and
duration specifications. The higher ramp speeds and acceleration rates
increase airflow, and consequently make more horsepower and torque. I
have 3 street carburated grinds, 1) to 4,500 RPM. 2) 3,500-5,500. 3)
3,800-6,000. 2) street blower grinds as well. & 2) full race. I will
custom grind to any requirement. Regards, Len
One end is pinned, the other rides in a slot. A much neater set up than
the period piece of the '50's. $1,300 Custom ground camshaft
kit,Camshaft 8620 steel, Lifters,Chrome molly, HD Pushrods, & Double
valve springs. All state of the art, Made in USA. a VAST improvement in
power throught the entire RPM Range, & Yes they are in limited
production per order. A roller cam will out perform any flat
tappet cam for the same duration. No lifter wear, Less friction.
Normally aspirated, Blower, Race, grinds, what ever your need is.
Contact me via E mail,
or Ph. 914-420-8699, Abingdon Performance
On October 31 I received the following testimonial from an obviously very impressed user of Len's system:
email to:Bud@Ttalk.info