Vacuum question

s300 and SManager software questions & answers
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mdp
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Vacuum question

Post by mdp » Mon Feb 06, 2006 7:20 am

Instead of drilling and tapping the manifold for a vacuum source for my 3-bar map, I could make a fitting and use the original map location on the throttle body. Will this be a decent vacuum source?

P28, 99 GSR, S300

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Spunkster
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Post by Spunkster » Mon Feb 06, 2006 10:49 am

It will work, but directly off the manifold is the best way.

mdp
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Post by mdp » Mon Feb 06, 2006 10:56 am

You think the throttle body vacuum source is any better than teeing it off of another vacuum line?

I know it's best to take the mani off.....drill and tap....put it back on, but do you think it can be done while it's on the car? I know, I'm lazy! LOL!

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Post by Spunkster » Mon Feb 06, 2006 2:18 pm

There should already be plenty of fittings on the manifold to use.

RMS
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Post by RMS » Thu Feb 09, 2006 11:32 pm

tip for drilling and tapping the mani without removing it: remove the vac line from the fpr. attach a blow gun into it. while you drill and tap have a buddy apply air pressure through the vac line. the chips will be blown out as you machine the hole (so wear safety glasses!).

golden eagle vac logs work well, too... though they are less than pretty in a clean, stock-looking engine compartment.
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