what do the vac. hoses coming off of the oil injecters do?? i have a feeling they control how much oil is injected but i'm curious since mine are no longer hooked up since i went single turbo, and i was told just to open them up to atmosphere (with breather filters of course)

anyone have a diagram of the inside of the injecters?

 

I believe the vacuum lines on the oil injectors are to control some sort of internal valve to prevent them from leaking when the engine is turned off. Somebody feel free to correct me if I'm wrong.

 

i ended up reading that when there is vacuum inside the housing it sucks fresh air though those lines (since they are connected to the intake just after the filter) and there is a check valve inside the injector to prevent the oil from being blown back into the intake... that was all the information i found, but i'm assuming now that the air stream ionizes the oil into a mist and has nothing to do with controlling how much oil is injected

 

What ECU are you running on the single? If it's a PFC you'll be able to run the OMP on it. Otherwise or even with the PFC just leave it in and pre-mix. You can never have to much protection on these engines.

 

FWIW

There are two camps around this issue:

Camp 1: The nozzles just need air and the intake is a good place to get filtered air
Camp 2: The nozzles need a constant vacuum source

I've heard of guys going all three of the following in my years here:

1. Capping them
2. Leaving them open
3. Re-plumbing them to their intake on the single turbo

Obviously #3 is ideal as regardless of which "camp" you fall in, it will work as designed. However, I have never heard of anyone loosing an engine and the definitive problem was because they did #1 or #2.