Spiking a stock engine with 100LL is like adding water to your whiskey. It'll tame it down and certainly isn't gonna "spike" anything.
Water ingestion causing engine failures?
- Thread starter Vern
- Start date
Yeah, not all the fuel from the injector will end up the cylinder in lower throttle conditions. I don't know enough to say exactly what's happening, but either the intake pulse gets back to the cylinder before the piston passes the transfer port, or there isn't enough velocity to pull all the fuel from the injector into the cylinder, or some combination of the two. So you get some fuel/pre-mix in the case at idle and part throttle. A fairly small proportion though; nothing to compare to TB injectors or carbs.
100%. It's only needed with high compression heads (and usually you'd try to avoid going high enough to need it) or if you've got a turbo and are running higher boost than the engine can handle without detonation on pump gas. Some engines (like the early Dragon 800s) were a little aggressive with compression, and 20% or so 100LL gave you some safety margin, but it didn't enhance performance. Adding it to an engine that doesn't need it costs you money and HP.
It will raise the octane some. Nothing more, nothing less.
I don't trust pump fuel, would rather have a cushion. Have seen to many post about Det Codes.
Mine had a ton of water in it there were 4 spots you could see through. Pulling the intake was a pain.
Damn! Can you show where those 4 spots were on the outside? Assuming all were along the seam?
Can you get at all of the screws without actually pulling the intake? It looks like there's a labyrinth/lip all around, except for where the screws are (stupid design). If one can get at the screws, one should be able to inject RTV onto the flat surfaces through the screw holes. In theory, anyway.
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