EMBPilot

Ignore this noise!!

Quadcammer

Don't you have a de Havilland Beaver to fly or something?

KMASS993

Why do you believe it's an improper foundation?

jscott82

I heard his dad is a television repairman. he has tools and stuff.

Robert Linton

Updates:

2-Valve

Engine completed first round of dyno testing – 450 HP and 452 Nm Torque on street gasoline and with a catalytic converter (expect a few more HP from final 2-valve engine).

Next Steps (already begun):

1. Evaluation of Engine after initial dynoing.

2. Determination of parts (existing, new and/or modified) to be used for Endurance Dyno Runs.

3. Sourcing of modified and new parts.

4. Tooling for Cylinder Head Gaskets

5. Development and construction of Prototype Induction System for 2-valve.

6. Development and construction of Prototype Fuel Supply System including Throttle Actuator including Retainer.

7. Development and construction of Electronic-gas Adjuster and Retainer.

8. Development and construction of Exhaust System and Catalytic Converter.

9. Development and construction of new Test Bench and Engine Wiring Harnesses.

10. Development of new Bosch Ms 6.2 ECU and upgrades.

11. Development and construction of Prototype Oil Tank.

12. Endurance Dyno Testing.

Assuming success:

1. Production of throttle bodies in a lighter weight material, gold plated to keep cooler.

2. Production of stacks in carbon fiber, gold plated to keep cooler.

3. Production of new oil tank in carbon fiber.

4. Production of air box, gold plated to keep cooler.


4-Valve

Engineers in three countries working.

Engine will be 4-cam

Engine expected to produce in excess of 500 HP.

Kein_Ersatz

FlatSix911

Amazing thread ... any Dyno sheets available?

MarinS4

This alone would be a welcome upgrade to the 993. Modern knock sensing helps maintain ideal timing curves.

Robert Linton

Both engines are boxers. Both the 2-valve and the 4-valve should weigh less than current Porsche air cooled engines. Additionally, should someone wish to spend the money, we could go to extra lengths to reduce weight further. As to basic engine costs, the 2-valve should cost between $60,000 and $75,000 including a new ECU, a new carbon fiber induction system and a new carbon fiber oil tank. The 4-valve is expected to cost around $100,000 including a new ECU, new carbon fiber induction system and a new carbon fiber oil tank. Of course, we will do everything possible to keep costs down without sacrificing quality.

GBX

Any chance this new ECU will be available as a standalone upgrade? Sounds like a nice alternative to Motec.

Robert Linton

I am hoping that the 2-valve engine will be production ready by the end of this year. As to the 4-valve, plans call for production ready status by the first quarter of 2018. Re the ECU, it will not be available without an engine.

NP993

I don't understand why you'd gold plate intake parts. They're cooled by the intake air.

mgerber

The gold plating does a better job rejecting heat (as gold is a great thermal conductor), so any parts that are plated on the exterior will stay cooler. For intake parts that means the intake air will pick up less heat as it flows through an intake system that is plated on the exterior.

We used to gold plate some critical components in the isothermal systems we built for aerospace applications. It was pricey but worked really well, and it was much more corrosion resistant.

rlme36

A better way to state is that gold plating provides a barrier to radiant thermal heat that could raise the temp of the intake charge from the heat generated by the engine while it resides in the engine compartment.

NP993

All that is true, but for an engine at speed, the parts that make contact with the intake air (i.e. airbox, trumpets, throttle body, etc) are quickly cooled to the temp of the intake air.