click here to request more information...
as
of 6-15-04 using a150 Hp Lycoming O-320-A2B engine.
Gain
16Hp and 27lb/ft of torque when engine is leaned to best rpm.
The gain in Hp and torque difference was accomplished using the
same engine and comparing the OEM (stock) Super Cub exhaust system
and Leading Edge Exhaust Systems P/N: PA-18-150ESA.
The following information
was obtained doing static pulls on an aircraft engine dynamometer
as all of the dyno pulls are done. It is being presented for everyone
that assumes when baffles are removed from the muffler the engine
will produce more horsepower and torque.
The test results will probably surprise you. With no baffles
in muffler and the engine leaned to peak rpm the engine lost 2
Hp and 7lb/ft of torque and in the full rich mode the loss was
an additional 3 Hp and 3lb/ ft of torque. The total loss was 5Hp
and 10lb/ft of torque, full rich, when compared to the dyno test
using the same Leading Edge Super Cub Exhaust System PA-18-150ESA
with muffler baffles installed, leaned to best rpm.
6-04,
Dyno Test, Gain 13Hp and 22lb/ft of torque with Leading Edge Exhaust
System P/N PA-18-160ESA and 160Hp Lycoming 0-320-B2B engine.
Check
this out. Using LYCON's “Bad Boy” 160 Hp. Exp. engine
and Leading Edge Exhaust System P/N PA-18-160ESA together
pulled 197 HP and an unbelievable 371.2 lb/ft of torque.
This is more
torque than the 180Hp engine produced with nearly the
same Hp. Find out more by clicking on the Hyper-Link
listed below.
click here to request more information...
6-04,
Dyno Test, Gain 22Hp and 20lb/ft of torque with Leading Edge Exhaust
System P/N PA-18-180ESA and 180Hp Lycoming O-360-A1A engine.
*According to customer dyno tests performed at LYCON Engine Rebuilding.
LYCON Engine Rebuilding is the largest FAA certified engine rebuilding
shop on the United States west coast. LYCON is a Lycoming / Continental
distributor and is FAA certified for Lycoming OEM rebuilding.
LYCON also builds a wide array of high power, high performance
experimental engines.
LYCON Engine Rebuilding is located in Visalia California and
their phone number is: 1-559-651-1070, Fax number - 1-559-651-3212,
e-mail LYCON@LYCON.com and
website www.LYCON.com.
200
RPM increase in a 1000' FPM climb, PA- 12 rate of climb, stock
pipes 750' FPM with Leading Edge Pipes 1150'FPM -53% increase
Equal
length primary tubes, patented muffler baffles balance
all 4 cylinders within .05PSI
You
can actually get to the starter and alternator- no
crossover pipe in the way
CHT's
and oil temps reduced, CHT's reduced by 15-20 degrees,
CHT rapid recovery and stabilizes in 1/5th the time
after steep climb, Oil sump, alternator and starter
do not absorb excess heat radiated by exhaust crossover
pipe
Entire
system can be removed in 30 minutes without swinging
the engine or removing any cowling
Entire
system TIG welded by Certified Welders
Heavy
Duty 321 Stainless Steel, Muffler AD eliminated
Polished
Stainless- looks like chrome
Complete
single order
click here to request more information...
Our new Piper PA-18, Super Cub
exhaust is designed to fit 150HP through 180HP engines. The
180HP engine is slightly wider than the 150HP - 160 HP engines.
Our US Patented exhaust system is an entirely new design that
performs very well and is much easier to install and maintain.
The exhaust is routed through individual mandrel bent primary
tubes with a wall thickness of .049", 40% thicker than
OEM. The primary tubes are attached to a dual inlet crossover
design muffler that can be easily removed to replace exhaust
gaskets, perform cylinder maintenance and inspect the muffler
baffles. With this new design the cylinder back pressure is
much more balanced and the firing order is being utilized for
peak performance. All four cylinders are within .05 PSI versus
the original system that has a much higher variance of 1.5 PSI,
a huge difference! This equates to more balanced EGT’s.
Having individual primary tubes eliminates the hot spots and
subsequent material failures of the OEM exhaust.
The muffler baffles are fabricated
from heavy duty 1.875" x.049" wall tubing result for
extended life. Due to the firing order, the baffles theoretically
will only see exhaust from one cylinder at a time. The exhaust
pulse will actually oscillate back and forth through the baffle.
This will decrease the concentration of heat within the baffle.
The muffler AD has been eliminated
by AMOC, Alternative Means of Compliance. The muffler can is
oval shaped and has more effective heating surface than the
factory supplied unit. The wall thickness is also 40% thicker
than the original muffler. The muffler is divided into 2 sections
for carb and cabin heat. The carb heat side will supply rear
seat heat. The removable overboard tube is a much larger 2.5” diameter
when compared to the stock tailpipe diameter of 2” and
the results are much better exhaust flow. Another tailpipe design,
available soon, is a swept back version that allows the exhaust
to be directed away from belly tank, float struts and landing
gear. The entire exhaust system can now be removed
in less than 30 minutes without removing one
piece of cowling or swinging the engine!
This will decrease maintenance
costs as well as wear and tear on the cowling, engine mount,
cables and related components. Another major benefit is that
our system removes the exhaust heat from the alternator, starter
and oil sump areas by routing the pipes to the rear of the engine
compartment. The stock crossover pipes are in very close proximity
to these vital accessories.
Please feel free to contact us
by phone or e-mail if you have any questions. We also have literature
upon request.
