The horsepower race continues to escalate. We have production OE engines now achieving over 800 hp and Chrysler is now delivering a four-digit flywheel horsepower number straight off the factory floor. With these outlandish power numbers also comes increased demand for a high-performance fuel delivery system.
On the surface, the solution would seem fairly simple: just add a monster pump capable delivering fire-hose-capacity fuel at the high pressure needed to feed an 800hp, supercharged engine. But add the requirement of a light-throttle cruise down the highway while knocking down 20 mpg and things become a bit more complicated. In the past, this demanded a return system that could bypass a large amount of fuel returned to the tank.
What is rarely discussed is the fact that bypassing fuel increases the
