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 Supercharger vacuum plug?

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chitown_riv98
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PostSubject: Supercharger vacuum plug?   Sun Nov 30, 2014 9:23 pm

I'm in the process of replacing the engine would I be able to plug this hole in the supercharger? My original sc does not use this vacuum line. I'm trying to decide whether to use the original supercharger off of my engine or the new one on the replacement engine

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Last edited by chitown_riv98 on Sun Nov 30, 2014 9:30 pm; edited 2 times in total
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chitown_riv98
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PostSubject: Re: Supercharger vacuum plug?   Sun Nov 30, 2014 9:27 pm

This is the original one off the engine

[img][/img]
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PostSubject: Re: Supercharger vacuum plug?   Mon Dec 01, 2014 2:22 pm

You can just plug that no problem. I'd use whatever supercharger is in better condition. Look at the black coating on the rotors, feel the coupler for play, etc. The blower with that extra vac/boost tree is older than your original but that boost tree is a kinda handy thing to have there because then you don't have to re-tee the lower intake nipple when that fitting breaks, just run hoses to the blower tree for the boost control solenoid and fuel pressure regulator then there's just a single line that needs to go back to the MAP sensor.
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PostSubject: Re: Supercharger vacuum plug?   Mon Dec 01, 2014 2:34 pm

I was doing a once-over on everything and I noticed this:



I'm assuming there should be a plug or something there?
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Z-type
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PostSubject: Re: Supercharger vacuum plug?   Mon Dec 01, 2014 2:36 pm

That's just a vent for the boost solenoid...it used to have a little rectangular sponge over it but most of ours have worn away. It's ok to leave it be.
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PostSubject: Re: Supercharger vacuum plug?   Mon Dec 01, 2014 2:59 pm

Thanks
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chitown_riv98
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PostSubject: Re: Supercharger vacuum plug?   Tue Dec 02, 2014 5:53 pm

Thanks guys. I was just gonna swap the snout since mine has the 3.4 pulley and I replaced the coupler already. The sc with that vacuum tree came outta 96 with low miles.
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PostSubject: Re: Supercharger vacuum plug?   Tue Dec 02, 2014 6:25 pm

turtleman wrote:
You can just plug that no problem. I'd use whatever supercharger is in better condition. Look at the black coating on the rotors, feel the coupler for play, etc. The blower with that extra vac/boost tree is older than your original but that boost tree is a kinda handy thing to have there because then you don't have to re-tee the lower intake nipple when that fitting breaks, just run hoses to the blower tree for the boost control solenoid and fuel pressure regulator then there's just a single line that needs to go back to the MAP sensor.


That's a great idea about rerouting the vac lines. I had a hell of a time finding the tees, elbows & different diameter lines to redo my vac lines. I think I'm just gonna use that tee to do what u suggested turtleman. Would it supply the same vac pressure?
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PostSubject: Re: Supercharger vacuum plug?   Tue Dec 02, 2014 8:08 pm

chitown_riv98 wrote:
That's a great idea about rerouting the vac lines. I had a hell of a time finding the tees, elbows & different diameter lines to redo my vac lines. I think I'm just gonna use that tee to do what u suggested turtleman. Would it supply the same vac pressure?

Just get a few different diameters of line. Then use the bigger line as a coupler between OEM stuff and the new stuff. The pre-packaged line that AutoZone sells fits perfectly over a lot of the stock stuff.
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PostSubject: Re: Supercharger vacuum plug?   Tue Dec 02, 2014 8:28 pm

If you're willing to shell out the cash, you can buy a complete vacuum hose kit from HPSI Motorsports http://www.hpsimotorsports.com/ It's pricey, but the vacuum T's fit snugly and the line is cut to the exact length you'll need. Instuctions are also included.
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