ZR-1 Net Registry Forums - View Single Post - Want to run an ITB manifold. Has it been done on a LT-5?

flyin ryan · 01-12-2011

This is what I.R. set-ups need, a common plenum of some sort....Just read this.

Kaase introduces new Boss Nine with stack injection

Jon Kaase has announced his latest Boss Nine design, energized by an interesting new intake manifold with a hidden plenum below and stack injection above.
Four-time winner of the Engine Masters Challenge, Kaase has succeeded in investing this new stack injected Boss Nine engine with exceptional torque and tractability? qualities not usually associated with stack injection.
But the hidden plenum on the underside of the Boss Nine intake manifold equalizes the pressures in all induction tracts and provides the engine with a clean, consistent idle, excellent part-throttle performance, and instantaneous throttle response. The plenum also provides for brake vacuum and empowers the MAP sensor, which has a major influence in the metering of the fuel.
Compared with a carbureted Boss Nine equivalent, the new stack injection system gives a surprisingly good account of itself. On a typical 520 c.i. engine with 9.8:1 compression ratio, hydraulic tappets, and running on pump fuel, the stack injection engine outpaced its carbureted rival by an extra 30 ft-lbs torque.

01-12-2011	#24
flyin ryan Join Date: Aug 2006 Location: Edmonton, Alberta or Phoenix, Arizona Posts: 2,736	Related story... This is what I.R. set-ups need, a common plenum of some sort....Just read this. Kaase introduces new Boss Nine with stack injection Jon Kaase has announced his latest Boss Nine design, energized by an interesting new intake manifold with a hidden plenum below and stack injection above. Four-time winner of the Engine Masters Challenge, Kaase has succeeded in investing this new stack injected Boss Nine engine with exceptional torque and tractability? qualities not usually associated with stack injection. But the hidden plenum on the underside of the Boss Nine intake manifold equalizes the pressures in all induction tracts and provides the engine with a clean, consistent idle, excellent part-throttle performance, and instantaneous throttle response. The plenum also provides for brake vacuum and empowers the MAP sensor, which has a major influence in the metering of the fuel. Compared with a carbureted Boss Nine equivalent, the new stack injection system gives a surprisingly good account of itself. On a typical 520 c.i. engine with 9.8:1 compression ratio, hydraulic tappets, and running on pump fuel, the stack injection engine outpaced its carbureted rival by an extra 30 ft-lbs torque.