Northstar Engines and System Technical Discussion Discussion, What did Cadillac do to get more power? in Cadillac Engine Discussion; Out of the later 4.6's like the XLR. The intake manifold appears to be different from our's..would this be a ...
Out of the later 4.6's like the XLR. The intake manifold appears to be different from our's..would this be a nice bolt on modification for us? Didn't they also go to a roller lifter setup? Any info/tips?
Edit:I guess this should have been posted in northstar performance..
Did they institute direct injection yet?, I think I recall the guru mentioning that it was coming. Audi is using direct injection, here is the description
FSI is an ingeniously efficient fuel-injection technology that squeezes more power out of every drop of gasoline. By injecting fuel directly into the combustion chamber milliseconds before ignition, FSI creates instantaneous combustion.
FWD N* has coil on plug ignition since ... I think 2000... right Ranger?
They just use a bigger coil assembly. There are two big coils as opposed to 8.
This is what I meant. EIGHT COILS, one for EACH cylinder.....
The ignition utilizes a coil-on-plug arrangement, which maximizes spark energy, eliminates spark plug wires and improves electromagnetic compatibility performance. The ECM precisely commands ignition spark event and timing. Four pencil coils are assembled to a bracket for modular assembly, one module for each bank. During engine assembly, the coil modules are assembled to the top of the cam covers so that the coils fit into tunnels in the cam covers and cylinder heads, and connect directly to the spark plugs.
See this article, it gives me a boner, Anatomy of an Engine - the New Northstar V8, specifically IGNITION SYSTEM
I haven't seen it yet but I know Direct Injection is coming to the V6.
The only DI engine I know of out there right now is the turbo engine in that little Saturn thing.
The FWD N* ignition system is similar in design and operation to the RWD VVT models. It is just a different arrangement, but I know what you mean.
They are doing a lot of things with some pretty high tech stuff here lately.
It is actually quite amazing.