chào anh truc!
You did some very good work!
Quote:
1. Where is the right position of MAP sensor to connect the vacuum pipe. Does it need to drill a hole on the throttle body to connect the vacuum pipe at there?
2. Also the vaccum pipe of BOV, i tried to find the diagram on web but not found so far..
3. Boost gauge, which gauge could be use and how to connect the gauge?
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All of these vacuum inputs should come from intake-manifold between throttle-butterfly and intake-valves. Yes, you should drill hole in each throttle-body to get manifold-pressure and join them into one pipe to combine pulses from each cylinder. Then split them to each device: MAP sensor, BOV and boost gauge. Like this picture:
You can use this
5-way air manifold to join and split the vacuum signal. This may not be enough inside volume (space) to join between cylinders and blend signal. Might need larger body of at least 100cc. Test and graph MAP-sensor signal from PowerCommander. If it has lots of pulses up and down, you will need larger body.
This may be used for
boost-gauge. Mount somewhere high and visible.
Don't use BOV, it dumps your boost to atmosphere when you shift and makes your turbo slow down. This causes turbo-lag after shifting. You have to wait for turbo to build boost again. Better to use
CBV - compressor bypass valve. This dumps boost from turbo-outlet back to turbo-inlet. This keeps turbo spinning when shifting and no turbo-lag.
Put side of valve into compressor-outlet and bottom of valve into compressor-inlet.