Stack Injection, or Individual Runner Injection, whatever you call it, there is nothing that looks quite like it. If you aren’t familiar, this is a setup that has been around for decades and that has on single throttle body blade for each intake runner. The injector, or injectors, that fuel each cylinder ONLY fuel that cylinder. So each intake port and runner are separate from all the others. In some ways, a stack injection equipped engine is 8 single cylinder engines that are sharing a crankshaft and a cylinder block. But with the right setup, all the rest is completely separate. This is awesome in some ways, can make things challenging in others, but has been successful in lots of racing over the years. But is it worth real power? Can you drive one like this?
Does not having a common plenum hurt the power or help it?
In this video you’ll get all the answers and see all the power it does or doesn’t make, on two different combos.
Video Description:
HOW MUCH POWER IS STACK INJECTION WORTH? CAN I RUN STACK INJECTION ON MY SMALL BLOCK FORD? DOES STACK INJECTION IMPROVE POWER? IS STACK INJECTION BETTER THAN CARBURETION? HOW MUCH POWER DOES A 331 STROKER FORD MAKE? CAN I RUN STACK INJECTION ON A 408 STROKER FORD? HOW DRIVABLE IS STACK INJECTION? HOW IS THE THROTTLE RESPONSE ON STACK INJECTION? CHECK OUT THIS VIDEO WHERE I COMPARED CLASSIC FUEL INJECTION (WEBER CARB LOOK) STACK INJECTION TO CONVENTIONAL CARBURETION. RUN ON A 500+331 HP FORD RACING CRATE MOTOR, I COMPARED THE STACK INJECTION TO A SINGLE-PLANE FUNNEL WEB AND 750 DEMON CARBURETOR. ON THE LARGER 408, I COMPARED THE STACK INJECTION TO AN EDELBROCK VICTOR JR. INTAKE AND 850 DEMON CARB.
