GM ISUZU V6 ENGINE

Due to customer demand two alternative power packages have been developed using the automotive derived GM Isuzu quad cam V6, These engines are brand new direct from the factory not second hand reconditioned engines as used by some engine package builders.

.

Naturally Aspirated Engine

266 hp @ 5500 rpm. 274 lbs/ft torque @ 4500 rpm

480 lbs/ft torque at prop

28 - 30 lts/hr @ 70% throttle

Starting with the basic engine an in house designed and built redrive unit is fitted with ratiosof 1.7:1  or 1.75 :1 depending on the option. A MoTeC engine management system featuring sequential fuel and ignition is then installed along with a custom made loom in Mil Spec wiring and Ray Chem flame proof covering. All fuel and oil lines are replaced with stainless braided lines and Earls fittings and coolant hoses with Silicone high quality hoses. Custom made oil and coolant radiators are also supplied with the kit along with fuel filter, remote mount oil filter and all other hardware needed to fit the engine to your aircraft.

A special feature of this system is the duplication of sensors and the ability to switch between banks of sensors much like switching between MAGS. During normal preflight run up the engine is switched between systems to ensure correct operation but unlike conventional  systems there is no change in engine operation apart from a "blip" which denotes the change of systems. The engine can therefore be run on either A or B system with no performance change and can be switched at any engine speed.

Because this engine has one coil per cylinder it has allowed us to incorperate a high level of redundancy into this system and from extensive testing it has been established that the engine will operate on 4 cylinders with one crank trigger operating at 60% of max engine power.

Supercharged Engine

310 hp @ 5200 rpm. 350 lbs/ft torque @ 4200 rpm

595 lbs/ft torque at prop

30 - 32 lts/hr @ 65% throttle

For those who desire even more power a supercharged version of this engine is available. The torque has been increased by some 30% which has made the already lively engine even better and has given it the ability to operate at altitude, but normalised to sea level performance. The obvious advantages of this are increased cruise performance and better fuel economy offered at higher altitude and the ability to fly clear of terrain or weather. The climb performance has also been significantly enhanced. Interestingly, this additional power has come at only a 5 KG weight penalty and 2 litres/hr fuel burn increase!

IVO Prop Magnum 3 blade composite with electric in flight pitch adjustment.

The Spitfire Mk 26 with the V6 engine will initially be using an IVO Propellor
Two three and four bladed propellors can be used