Air Mods N.W.
P.O. Box 8
Snohomish, WA 98291
Call Toll Free: 1-8-PROPELLER
(Fax) 425-334-3031 (local) 425-3030
INFORMATION and PRICES
for the Piper PA-38-112
GIVE YOUR TOMAHAWK A CUTTING EDGE
WITH AIR MODS N.W.’s 125 H.P. CONVERSION
THE LEAST EXPENSIVE WAY TO “HOP UP” YOUR AIRPLANE !
Modify your existing engine and retain your propeller. Since certification in 1985, these STC’s have
developed a long track record. (This is the same engine modification used on our popular 2 place
Grumman and famous Sparrow Hawk 152 conversions, with more than 1,000 total sold.)
DRAMATICALLY IMPROVE PERFORMANCE AND BURN LESS FUEL !
Increasing the compression results in development of more horsepower while fuel is
completely burned up. This allows the maximum performance to be gained without
increasing fuel consumption. The maximum continuous RPM is also increased to
2800 to allow the same propeller to give more speed.
SIGNIFICANTLY REDUCE ENGINE AND SPARKPLUG LEAD BUILDUP !
Higher compression also results in a cleaner powerplant due to greater expenditure of fuel.
Lead fouled plugs and lead sludge throughout the engine become history!
STC PACKET INCLUDES OIL COOLER OPTION AS SEPARATE STC !
This modification requires an oil cooler be installed. If the airplane does not have the Piper kit, we
furnish an STC for installing one by fabricating brackets from drawings and using one of
several popular oil coolers. This option saves a considerable amount over the factory accessory kit.
BASIC KIT PRICES FOR THIS MODIFICATION (effective 1/1/2017) (prices subject to change without notice)
Packet of 3 STCs (Engine, Airframe, & Oil Cooler) $545.00
Set of 4 high compression pistons, (weight matched) -(Pistons only – no rings
pins, plugs, etc.included) $2,201.64
Basic Kit Price (plus freight and applicable tax) $2,746.64
Pre-Cut Materials Kit for Oil Cooler Mount $295.00*
Assembly of Cooler Mount Plenum $195.00
Upgrade to New Lycoming Cylinder Assemblies, over pistons only, add: $3,931.00