NEW PICKS AT BOTTOM!
OK First thing I want to throw out there is I have yet to test this system because my car is not back together.
I got this Idea from the local track. All of the high horse power cars run vacuum pumps for there crank cases.
With boosted cars there is always a problem with positive crank case pressure, and I have yet to fine while searching a adequate solution.

I first started searching for vacuum pumps on JEGs. I came up short because all of the vac pumps are belt driven and extremely expensive, but There was one electric vac pump. It was also really expensive.
http://www.jegs.com/i/JEGS/555/52215/10002/-1
Stated on Jegs
"Electric Vacuum Pump will add 10-15 horsepower to your engine without robbing horsepower from your crank like a standard belt driven vacuum pump. Helps to prevent blow-by and improves piston ring seal allowing your motor to make more horsepower."
There good for V8s so 4cyls should be no problem.


When I looked at the picture closely, I knew I had seen that pump somewhere before, But I couldn't put my finger on it. Then when I was helping my friend change his air filter in his S-10 I saw it out of the corner of my eye.
------- SCORE! S-10s come with a electric vac pump for there smog system.
http://cgi.ebay.com/ebaymotors/00-03...spagenameZWDVW
They can be sourced for relatively cheap new.

The bracket can be found at junkyards.

You could get a used one from the junk yard.
They come on S-10, Blazer, Sonoma, models:
o 2000 w/ 2.2L Flex FI(5)
o 2001 w/ 4.3L and 2.2L
o 2002 w/ 2.2L
o 2003 w/ 2.2L
So I bought a new one and its on its way. I would show installed pics but I wanted to slip this in before the write up contest ended.

So i made this diagram In HMT fashion.


Hobbs normal open switch and relay can be also found on ebay.
http://cgi.ebay.com/NEW-HOBBS-PRESSU...QQcmdZViewItem

http://cgi.ebay.com/ebaymotors/OEM-S...spagenameZWDVW

http://www.harborfreight.com/cpi/cta...emnumber=94346


I didn't receive the pump I bought on ebay because they said they lost it.
So I hit up the junk yard and got some pumps.
I got one off a Volvo, VW, and Camaro.
Im going to use the Volvo and VW in my setup.
The one we used for my buddies car was off a lt1 camaro.

My old turbo kit doing justice.

Wats a teeeerrbo?

LT1 smog pump





This pump didn't flow ---- compared to the Volvo and VW
So We cracked it open to see why.



First we just removed the foam,and that didn't help much.



Then we removed the valve and O ring.





We just ground off the taps and cut the 2 wires. The pump pulled 4 inHG before this then 2.5 inHG after but the amount of flow that increased was worth the loss.

Switch located by drivers right foot.



Harbor freight vac manifold
We ended up pulling from the crank case and valve cover.

Ultra stealth mounting location.





This was a totally fucked pump we got off a s10. As you can see it has no valve.

AND NOW THE ****!



















[url=http://fileserver7.jpghosting.com/images/18_f9982755d110200c5d9a01668c4f26ad.jpg]

I suck at posting **** so I jacked some of kain's
Thank you kain.

 

So how much vaccuum do those pumps pull?

 

I read somewhere that the pump only pulls 2-3 psi but its the volume that matters with ventilation.

 

Ok.

Now, fix your ****.

 

I also might add a second PCV valve between the pump and the first PCV valve so that part of the system is closed when in vacuum.

 

My **** links keep getting broken so I took some of kain's.

 

problem #1: it wont pull enough... you will still see crankcase pressure with one of these pumps....

 

Really?

Considering Iv read a couple of articles about using the same exact summit pump on grandnationals and t types and Reduced blow by, greatly or completely.

 

a lot of the power made from vacuum pumps is from running very loose piston rings to reduce friction. if your engine is not built for this you wont see the gains you should. im sure it will help some cause if there is pressure in the case then the pistons have to move down through that and you should also have a cleaner engine since you shouldnt get leaks as easy.

BTW, nice recycled ****

 

recylced or not this chick is ------- hot