With just a few weeks away from Speed week, everyone in the race shop has been excited for this year on the Salt Flats. The Cummins 4bt had its final touch this last weekend with a manual diesel shut off valve installed. In 2010 Eric experienced a runaway diesel and the swamp-witch wanted to take off on her broom to dip in the Great Salt Lake. Luckily Eric got her calmed down and Ultimately shut her up with a squirt from a fire bottle down her throat.
Diesel engines run without a spark plug to ignite the gas or oil. This is accomplished by high compression, air, and diesel fuel. There is not an ignition system that creates a spark like in gasoline engines and why the term dieseling is used to describe a gas engine that continues to run for a short period after the ignition is turned off. Dean and Eric contemplated multiple ways to resolve the challenge. The final solution, an adapter and valving that will allow the driver to cut off the diesel supply to the engine should something go wrong. This gives Eric the confidence to push the worlds fastest diesel in the E/DS class to new records. Come out to Bonneville for an exciting time August 11-17.
3 comments:
FYI, you need more than just a fuel cut-off to stop diesel runaway. You can get runaway from crankcase oil or oil vapor somehow making its way into the combustion chamber: no other fuel needed. A method to stop all combustible air from entering is the only 100% effective means. So an intake block or a CO2 flooding system.
1. The Bullet Car With Diesel Engine: Set worlds Speed record on the Salt Flats in State Navada to; was (171 M.P.H too!
Amazing run.
Post a Comment