New engine build

[Department Of Boost]

Load on the belt. See they suggest a single V type belt, it will be too crazy to try to move it from another pulley?

It can't be much of a load. I would have to check to make absolutely sure though. The belt drive Meziere water pump that moves 100gpm only sucks up 7hp, the vacuum pump can't be close to that. 100gpm is a crazy amount of water. And you combo would take one of the smaller pumps.

As far as driving the pump goes I was thinking of turning one of the idlers into a double pulley. It would get driven by the stock 6 rib still but forward/outboard on the same pulley would be the drive for the vacuum pump. That way the drive "gear" could be nice and small so the pump is not over spun.

 

[one eyed willy]

Can't wait for you guys to figure this all out! Lol, I really want to get a pump back on mine!

 

[JeremyH]

Boom! Problem solved! lol

Pump, separator, breather and catch can. Get at me.

 

[Dubstep Shep]

Boom! Problem solved! lol

Pump, separator, breather and catch can. Get at me.

Uhhh... what's that?

 

[JeremyH]

That's fucking magic, thats what is, do not question!!! lol

 

[Dubstep Shep]

That's fucking magic, thats what is, do not question!!! lol

Hahaha unfortunately, magic doesn't make my car go faster.

 

[Department Of Boost]

Hahaha unfortunately, magic doesn't make my car go faster.

Gandalf built my hot rod.

 

[JeremyH]

On a serious note for something more reliable, what about a header/exhaust crankcase evacuation setup. A lot of the older sb/bb fox and 2v/4v build guys love them. Its not just for turbo cars either, seems no one does it anymore though.

 

[Dubstep Shep]

On a serious note for something more reliable, what about a header/exhaust crankcase evacuation setup. A lot of the older sb/bb fox and 2v/4v build guys love them. Its not just for turbo cars either, seems no one does it anymore though.

Hadn't heard of this before. What about oil in the exhaust? No side effects?

 

[Department Of Boost]

Hadn't heard of this before. What about oil in the exhaust? No side effects?

It won't rust.

 

[JeremyH]

Oil gets into your exhaust through the motor one way or another, but yeah you run a closed breather filter at the valve cover or a closed catch can with filtration media to catch most of the oil and then what ever little makes it through gets burned in the exhaust piping. On a na car you cant use mufflers they say as it wont create enough vacuum, but a boosted motor seems to work fine regardless.

Here is a generic kit.

http://www.jegs.com/i/JEGS+Performance+Products/555/52210/10002/-1

 

[RED09GT]

http://www.summitracing.com/int/parts/vpe-1189/overview/
Vibrant makes a fitting and bung kit as well. It has been on my list to try for a while.
If you are concerned with oil in the exhaust, just run a catch can in line.

 

[JeremyH]

Yeah that's how I would do it. Run each valve cover to a catch can with filter media and a drain and then run from the can to the exhaust check valve. You could even run a check valve on the "cold side" line from the can to the cover for added protection if you wanted.

 

[Dubstep Shep]

Interesting. How much vac can the exhaust actually pull?

 

[JeremyH]

Depends on how much flow and pressure you run through the exhaust. It would pull more vac as load and boost goes up (when blowby is greater) which works well it seems. I imagine at idle/low load vac is a lot lower so you wouldn't have to worry about pulling too much vac all the time.

 

[UltraKla$$ic]

Hadn't heard of this before. What about oil in the exhaust? No side effects?

It won't rust.

 

[Dubstep Shep]

Depends on how much flow and pressure you run through the exhaust. It would pull more vac as load and boost goes up (when blowby is greater) which works well it seems. I imagine at idle/low load vac is a lot lower so you wouldn't have to worry about pulling too much vac all the time.

I would think the vac would go up with power. Seems like a good method. Almost like a boost reference fuel pressure regulator.

 

[JeremyH]

This was a good read, a lot of info to pick out of it.

http://www.fordmuscleforums.com/drag-racing/488403-crank-case-evac.html

 

[Dubstep Shep]

This was a good read, a lot of info to pick out of it.

http://www.fordmuscleforums.com/drag-racing/488403-crank-case-evac.html

Seems like most of those guys prefer the vac pumps to the exhaust systems. I doubt I would have an issue running the exhaust setup with my exhaust and all that, but still.

That thread seems to indicate the vac pumps are slightly better performance wise. The other advantage is I could recycle the oil back into the system.

 

[crownaviation]

Boom! Problem solved! lol

Pump, separator, breather and catch can. Get at me.

Dat a v-tec? One dem "spoons"?