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newb question about boost gauge... #138284 Mar 28, 10:32pm Mar 28, 10:32pm
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newb question about boost gauge...

Is it entirely neccessary to have FI to need a boost gauge? Reason why I ask is, don't they measure vaccum to? Would that be important to moniter at all? (As important as volts anyway?)

Re: newb question about boost gauge... [Re: 5280vvti] #138285 Mar 28, 10:35pm Mar 28, 10:35pm
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It isn't...but it is nice to keep an eye on stuf like that! thumbsup

Re: newb question about boost gauge... [Re: Rocketman] #138286 Mar 28, 10:40pm Mar 28, 10:40pm
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Originally Posted by Rocketman
It isn't...but it is nice to keep an eye on stuf like that! thumbsup


So it would still "make sense" to get the gauge without have FI then?

Re: newb question about boost gauge... [Re: 5280vvti] #138287 Mar 28, 11:19pm Mar 28, 11:19pm
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Originally Posted by 5280vvti
Originally Posted by Rocketman
It isn't...but it is nice to keep an eye on stuf like that! thumbsup


So it would still "make sense" to get the gauge without have FI then?

There might be another gauge out there besides the boost gage. It could save you some money.

Re: newb question about boost gauge... [Re: LostAngel] #138288 Mar 28, 11:51pm Mar 28, 11:51pm
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they do mesure vaccum... thats why on boost gauges, the numbers go into the negatives thumbsup

Re: newb question about boost gauge... [Re: 5280vvti] #138289 Mar 29, 8:16am Mar 29, 8:16am
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Okay, I wasn't sure if the big "BOOST" on there and not being able to back that up would be ricey(I might be looking at a nitrous oxide kit later on). I'm looking at the TRD boost gauge with the pillar.

I get the idea of psi and everything, but how would "vaccum" be defined in this sense. How much air the engine is sucking in?

Thanks again for the replys guys, greatly appreciated smile

Re: newb question about boost gauge... [Re: 5280vvti] #138290 Mar 29, 11:40am Mar 29, 11:40am
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Originally Posted by 5280vvti



I get the idea of psi and everything, but how would "vaccum" be defined in this sense. How much air the engine is sucking in?

Thanks again for the replys guys, greatly appreciated smile


very good question!
alot of guys run boost and dont get the gauges that go negative(vacuam) i like to see the vacuam cause it tells what state the motor is in at or off idle.
esp.if a hose or line is off or kinked etc.


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Re: newb question about boost gauge... [Re: hybridcelica] #138291 Mar 29, 3:03pm Mar 29, 3:03pm
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vacume when your engine is trying to suck more air then the box can provide such as the moment you ram the throttle the engine is trying to suck air but the Turbo isn't spinning enough yet


hey thats a 20 minute phone call
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derek: do you know that non dairy cream is flamable
Jennie: ...derek..what did you do
Re: newb question about boost gauge... [Re: drkramm] #138292 Mar 29, 3:04pm Mar 29, 3:04pm
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i would get oil pressure, oil temp or a/f all of which are important on any car


hey thats a 20 minute phone call
"if i have seen farther it is by standing on the shoulders of giants"
derek: do you know that non dairy cream is flamable
Jennie: ...derek..what did you do
Re: newb question about boost gauge... [Re: drkramm] #138293 Mar 29, 3:15pm Mar 29, 3:15pm
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Originally Posted by drkramm
i would get oil pressure, oil temp or a/f all of which are important on any car
Ditto thumbsup


Remeber this when trying to out run the Police "There Isnt a car on earth that can out run the ole Motorola!"
Re: newb question about boost gauge... [Re: 5280vvti] #138294 Mar 29, 3:33pm Mar 29, 3:33pm
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A boost gauge on a non-boosted application becomes a Manifold Pressure Gauge. The lower the pressure, the harder your engine is working. If you go up a hill at constant speed/RPM, you should see a drop in manifold pressure.

Re: newb question about boost gauge... [Re: 5280vvti] #138295 Mar 29, 4:10pm Mar 29, 4:10pm
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Thanks for the replys guys, they are much appreciated. Now I jsut need to decide whether or not to get the gauge

Re: newb question about boost gauge... [Re: 5280vvti] #138296 Mar 29, 4:38pm Mar 29, 4:38pm
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having it on a non FI engine is pointless really.


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Re: newb question about boost gauge... [Re: VSGTS14] #138297 Mar 29, 5:55pm Mar 29, 5:55pm
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yea i would get many other gauges before that ... like i said before get oil or a/f ... a/f is the easyest all you need to do is tap into a wire on your o2 sensor (and power of course) and you get your little lights


hey thats a 20 minute phone call
"if i have seen farther it is by standing on the shoulders of giants"
derek: do you know that non dairy cream is flamable
Jennie: ...derek..what did you do
Re: newb question about boost gauge... [Re: 5280vvti] #138298 Mar 29, 10:54pm Mar 29, 10:54pm
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Okay so the the A/f ratio gauge is measured as lean/rich etc. right? What's each one mean, and how does the mix. become rich or lean?

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