Boost gauge

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TD5Tom

Active Member
Posts
129
Location
Stafford
Hi everyone I have just workout the small boost pipe I need to connect near the turbo can anyone suggest a suitable bung to run the boost gauge pipe though the firewall on a discovery 2 td5 thanks any help is very much appreciated.
 
Treat yourself to a set... otherwise, probably a 6mm open rubber grommet. I take it its a 6mm tube.

s-l1600.jpg
 
Sorry I havent measured it but at a guess I would say it's about that size would u recommend drilling a hole and use a grommet then thanks for the reply.
 
Hi, i strongly discourage you to connect the pipe near the turbo... if you want relevant boost reading you have to pick it up from the inlet manifold
Is there somewhere I can do this or does it require a lot of work thanks for the reply.
 
Unless there is an existing hole, with a blank grommet in it...
I will have to look around it when I get more time the other thing is I want the pipe to come through preferably somewhere I can get at it rather than it come up behind the instrument cluster.
 
Can you just drill and tap a take off, directly off the intake manifold ?
Using one of these... around £2 a piece.

s-l1600.jpg
 
It's not a lot of work it's about drilling into the EGR bypass pipe or directly into the manifold and tap it or use rivnut
I will have to have a look at that this pipe I have found runs into the intercooler which I thought might give me the correct boost i found this on a forum afew days ago into which pipe to tee into.
 
Can you just drill and tap a take off, directly off the intake manifold ?
Using one of these... around £2 a piece.

s-l1600.jpg
What sort of pipe would be required to punch into the fitting my pipe is flexible to it wouldn't stay in that.
 
Can you just drill and tap a take off, directly off the intake manifold ?
Using one of these... around £2 a piece.
Not intake but inlet

Yes you can just to be close to the entry to be able to collect the filings... if the EGR is bypassed the best is into that pipe

I will have to have a look at that this pipe I have found runs into the intercooler
forget about that, IMO it's stupid ideea
 
Taking the reading right next to where the forced air goes into the engine, would be the most accurate place to sample. If you have losses in the boost pipe, or intercooler, it will show up.. If you have too much time on your hands, fit two gauges... pre and post intercooler... :p (only kidding)
 
Taking the reading right next to where the forced air goes into the engine, would be the most accurate place to sample. If you have losses in the boost pipe, or intercooler, it will show up.. If you have too much time on your hands, fit two gauges... pre and post intercooler... :p (only kidding)
I think you could be on to a decent idea there that would show any problems and I would no if it was the turbo or after the turbo but would require another gauge.
 
I think its similar to that this is what I found on another forum on where to tap in to get accurate boost pressure although I can see the theory in tapping into the manifold to get a more accurate reading
that's silly cos it has nothing to do with what boost you can get at the inlet... that's the only relevant place to be able to compare with the MAP reading also any leak or blockage between the turbo and inlet will not be revealed
 
I'm sure I have some fitting very similar to that of an old diesel pump I'm sure may have been of a range rover that I could possibly do something with.
 
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