Kayteg1 wrote:
pnichols wrote:
I wonder when (if ever) trucks are going to have solenoid operated valves?
Closing both intake and exhuast valves automatically whenever needed on downgrades would probably provide very powerful compression braking in gas engines.
Even in build for high pressure 6l Powerstroke the cylinder pressure could lift the heads in extreme situations.
I can only imagine what that idea would do to gasoline heads who were never intended for high pressure.
Something between the 15psi worth of vacuum braking and the 150psi or more of combustion pressure would be a good compromise. You can’t just shut the valves though. You need the intake open and the exhaust closed intermittently or left just cracked open slightly.
Think air compressor with a slow leak.
