What is the difference between tbi and cpi




















What's the Dif? Sequential Central Port Injection is a standard on the 4. What's nice about all this? They will fit the old engines, but heads would also have to be changed on the , and engines. Now I'm learning something! I have read references to Vortech motors and the fact that the heads from those have a different manifold mounting points. Is the begining of the Vortech configuration? My understanding of sequential port injection is that each injector if fired in a timed sequence relative to the firing sequence of each cylinder.

This is as opposed to earlier "batch fired" systems which fire all the injectors at the same time once per crank revoulution. Sequential injection is more precise which aids in producing cleaner burning motors for reduced emissions and it produces better response from idle through the lower rpms. Racing EFI applications are often batch fired because less sensor inputs are required keepin it simple and because racers are not much concerned with idling, low rpm operations and emissions.

So below the heads everthing is pretty much the same. Also the CPI engine is dumping gas into the oil pan? I'm mainly just gonna use it for parts. It ran long enough to get it on the trailer Steve W. Post by 69SScamaro Lift the top of the plenum off and see if it is filled with fuel. The plastic lines inside crack and leak, flooding the engine. We are looking for one of those cheap S Blazers for a project we are doing. Post by Steve W. Post by bobby swift I'll pull the upper plentium tommorrow..

I appreciate all the info. It does have ABS on it



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