Thread: BOOST Question
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YZR500 YZR500 is offline
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Join Date: Dec 2008
Location: Chester County, PA
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Originally Posted by 911st View Post
If you read vacuum at cruse or idle you are hooked up between the throttle plate and the intake valves. Your gage is seeing what your motor sees.

If you hook it up after the compressor and before the throttle plate and there is not a relief valve of some type to vent the excess pressure, you would see boost at idle and cruse.
Thanks 911st, I have read your post ...probably 20 times now,... I think it starts to sink-in now. This makes more sense to me.

So again, if I was to install water/meth injection system with my boost gauge connected where it is right now,... I would only see a little squirt here and there for less than 3-5 second at each time on a progressive injection system. I wounder if these injection system can be set to inject while the gauge reads vacuum at say a preset point of 5" mercury, which would benefit my engine while coasting???

Any thoughts
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Old 10-21-2009, 04:41 PM
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