EFI 8 Stack injector alignment squiggily tolerance?

[eschaider]

Bob's comment about proper alignment of the injector shot is a big deal for tuning but an even bigger deal is fuel leaks. When you cant injectors you compress the upper and lower o-rings more on one side than they was designed to be and not as much on the opposite side as they were designed to be.

There was a big name fuel rail supplier that unintentionally manufactured their fuel rails producing this same effect. Target zone for the injected shot not withstanding, the fuel leak that developed as the o-rings aged, flooding the top of the engine with gasoline was impressive. When the puddle got to the headers course you can guess what happened next.

Try to keep your injectors centered in both the manifold bore and also the fuel rail. With FI base fuel pressures in the 3BAR (43.5 psi) area you can get an impressive puddle of gasoline on top of a running motor very quickly. The ending is usually an unhappy experience.


Ed