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Discussion Starter · #1 ·
Hi, i found this on another forum:

"Signal source for the MAP sensor should come from the intake manifold, after the throttle body. Otherwise it will never see vaccuum.

The boost source for the boost control solenoid should come off the turbo compressor housing or very close to it. You can use a signal from anywhere in the system, but you'll get more consistent control from the compressor.

Keith
Flyin' Miata"

Im guessing as its flyin miata, i would imagine they are correct? Do you knowledgable chaps aggree? Sounds sensible to me.. (but then, im a turbo newb so it would do 馃檮)

I have a feed from the mani near the throttle body going to the boost guage.
I was going to use the other feed from the mani to go to the map sensor in the ecu. Im guessing it doesnt really matter which of the two manifold nipples i use for the map sensor? , they would be equally accurate? (its a mk2 99)
And then take the feed for the ebc from the td04 housing then back to wastegate?... (and not from the manifold, which was what i was thinking originally)

Thanks again 馃憤馃憤馃憤馃憤
 

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Correct. You want the highest pressure source for the EBC solenoid, which is at the outlet of the turbo cold side. You want the MAP signal to come from somewhere after the throttle body so either the one just behind, or the same port as the FPR is connected to.

You may want to consider this variation :


Which is to swap the FPR source to that of the one behind the throttle body and use the FPR's former vacuum source for the MAP signal.
 

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Discussion Starter · #3 ·
Correct. You want the highest pressure source for the EBC solenoid, which is at the outlet of the turbo cold side. You want the MAP signal to come from somewhere after the throttle body so either the one just behind, or the same port as the FPR is connected to.

You may want to consider this variation :


Which is to swap the FPR source to that of the one behind the throttle body and use the FPR's former vacuum source for the MAP signal.
Thats great, thanks for digging that information up, im pretty fussy about this car and the whole build, so any way i can make things better/more reliable in any way, i will do so.. I expect ill go ahead with that idea. Thank you 馃憤馃憤
 

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Discussion Starter · #4 ·
Although, after scrolling down a bit he says:

"Well, after a thrash around today the MAP vacuum hose is going back to its original position, much hesitation going back onto throttle."

So maybe thats one to experiment with after its tuned etc and all is already running smoothly. .
 
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