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bigger injectors=power increase?

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crazyboost

15+ Year Contributor
219
4
Sep 23, 2003
I'm gonna buy some larger injectors soon (i already have safc), and I was wondering if i would see any increase in power? Since you would have to compensate for the injectors on the safc the ecu would see less air coming into the engine than there really is. Due to the ecu thinking there is a decreased load, wouldn't it further advance the timing, which would lead to a slight increase in overall horsepower? Someone help me out here and tell me if my logic is correct.
 
I don't know about the timing thing, but bigger injectors and proper tuning will allow you to run higher boost, but you need to watch for knock, which will retard timing ;).
 
Yes, by default, because of the way the AFC works advances timing. This can be a good thing and a bad thing. Since too much timing causes knock on pump gas you may end up making less power because of having to run a little richer. On race this all goes out the window and the car will run great. Most would agree that anything bigger then 660cc are hard to control with just an AFC and generally make the car run like crap because of the advanced timing.
 
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