a guy i work with has a 97 chevy single turbo it has edelbrock e-tec heads wisco 8-5 to1 pistons snow meth vortec fmu. i was just wondering what you guys did for bigger injectors for it i havent been able to find anything. we are going to put a cam in it next week and dyno tune it so would like to now about injectors before the tune. he is running 10psi

 

Check with Hog but I think you need to replace the intake manifold or be stuck with 19 lb/hr injectors. Maybe there is some kind of FMU and auxiliary injectors available but I think fuel is a problem.

 

The Ramjet 350 intake manfold will work with those heads if you're not interested in keeping emission equipment. If you need something you could get EGR working on there is the L31 Marine intake manifold. I am running this with 9psi and 36# injectors. (Fuel pressure on these is 4-bar, so injector flow rate for 36 actually comes out to 41.x pounds per hour if I recall right.)

The stock PCM can be reprogrammed with TunerCATS (www.monodax.com) to run the bigger injectors and a 2-Bar MAP sensor. The only problem I have is an inability for the stock PCM to provide accelleration enrichment. This is extra fuel to compensate for rapid throttle transients. You have to compensate for it by making your VE table incorrect for high MAP / low RPM cells.

The Marine manifold ahs the throttle body in exactly the same spot forward on the top as stock. In fact, the stock TB is what you bolt on - just with a spacer. The ramjet intake is on the front like an LT1, but taller.

-James

 

Or you could check with James B.

Good job James.

 

thanks i will let him no.