Dual quads on the left hilborns 8 stack on the right. Specsbrandspeedmasterpart number1 148 004part typeintake manifolds fuel injected engine block stylestockoem standard deckinjection style8 throttle bodybasic operating rpm range.
Sbc Down Draft 8 Stack Has Anyone Installed One Yet Third
8 stack fuel injection sbc. Styled around the traditional carbureted systems of the 1960s the eight stack system combines all that classic nostalgic wow factor with modern technology. The trick injection setup on these pages is ingleses ez efi eight stack system pn ng4006e featuring the fast ez efi kit pn 30200 which features a self tuning ecu that had us eager to try out. Thanks to todays sophisticated management systems eight stack fuel injection can be tuned to all but eliminate hard starting plug fouling and the basically compromised airfuel mixture associated with original downdraft carburetors. Its interesting to note that the injection peaks at 5700 rpm with 7031 hp while the dual quads peak at 5900 rpm with 6931 hp. Idle 7000intake trumpetsintake trumpets includedegrnoinjectors includednofuel rails includedyesthrottle body included8 piecesbase materialaluminum castingbase finishblackassembledassembledefi sensor kit. The speedmaster stack style efi manifold looks like a full on bargain then at around 2300 for a small block at outlets such as summit racing and jegs.
Ez efi 20 eight stack induction systems employ advanced fast ez efi 20 electronics and fast precision flow gm ls2 style fuel injectors 33 lbhr included that are integrated into our exclusive cast aluminum 50mm ida style throttle bodies. From the very beginning of the test the hilborn system is up 313 hp at 4700 rpm along with 351 lb ft torque. This is a speedmaster 8 stack efi system using a fast engine management system on a 383 small block chevy mounted on a run stand and fired up for the first time by specialty vehicle builders 816. These efis have hidden injectors and i fit them with conventional fuel lines instead of fuel rails common to efis. Classic weber independent runner 8 stack v8 systems base smallblock ford shown as shipped with chromed velocity stacks complete braided fuel lines and pressure regulator which can be mounted on the unit as shown or it can be mounted by you where you like it. The ez efi 20 is a self learning fuel injection system that tunes itself as you drive and does not require the use of a laptop.
If you prefer the look of a classic weber carburetion system the original 8 stack induction i can build you an efi that looks just like weber carburetors.
Gallery of 8 Stack Fuel Injection Sbc
