Grimace427
Well-Known Member
why are you against it? It will boost the performance of the coyote, and it should be cheaper than the dual injection system...:shrug:
Do a search of DI problems. I had a Mazdaspeed and by 20k miles your valves were all gunked up. We had valve cleaning meets LOL. A secondary injection system would keep the valves clean.
This. DI has more problems than it's worth. It might boost the performance for the first 20-30,000 miles of the engine's life, after that nothing but problems with carbon buildup.
I've seen near complete port blockage as early as 15,000 miles on a Mercedes M276 3.5 DI V6 that I've worked on.
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