Let's see your upgraded Crankcase Ventilation System

[KenH]

Here is my setup. I used a larger catch can from Summit Racing and put it where my windshield washer bottle was and routed the stock Y-plumbing from the two valve covers over to it. The benefit of putting the can on the drivers side is that there is less tendancy to pull in blowby gases through the cabin air intake if you vent the blowby into the engine compartment instead of routing back to the engine air intake.

Having said that, I would not recommend routing the output of the catch can back to the intake. The reason is that there will still be oil vapor passing though the catch can and that tends to lower the effective octane of your A/F mix and increases the air intake temperature and therefore increases the risk of detonation. Given your recent experience, I'd error on the safe side.



--- Ken

[Walker]

There you go again Ken, showing off that engine!!

[plumcrazy]

i totally agree with ken, putting those vapors BACK INTO the engine thru the intake is NOT good. its gonna LOWER your octane and INCREASE your likelihood of detonation.

[Jerome Sparich]

Originally Posted by plumcrazy

i totally agree with ken, putting those vapors BACK INTO the engine thru the intake is NOT good. its gonna LOWER your octane and INCREASE your likelihood of detonation.

See pic in post 15

[KenH]

Originally Posted by Walker

There you go again Ken, showing off that engine!!

I have to, I don't have all that exterior bling like you do.

Heck, I am thinking about just taking my hood off this year or cutting a hole in it and putting a big sheet of plexi in there like the ZR1.

[FLX109]

Originally Posted by KenH

I have to, I don't have all that exterior bling like you do.

Heck, I am thinking about just taking my hood off this year or cutting a hole in it and putting a big sheet of plexi in there like the ZR1.

Ken,
Your engine compartment does look sweet.


FLX109

[BOTTLEFED]

Originally Posted by KenH

--- Ken

I could stare at that engine bay for hours

thanks for the advice

[dave6666]

Originally Posted by BOTTLEFED

I could stare at that engine bay for hours

thanks for the advice

Horrible photographer though. I mean, couldn't you have picked a better backdrop?

[KenH]

Actually Dave that was my plan all along. What better way to make your engine to pop than to photograph it in front of a very drab background that doesn't fight for attention with the foreground?

[Walker]

Originally Posted by KenH

I have to, I don't have all that exterior bling like you do.

Heck, I am thinking about just taking my hood off this year or cutting a hole in it and putting a big sheet of plexi in there like the ZR1.

Just call mine "Stickers". Too bad everyone can't see your engine when you're out and about!

[davem]

I've spent a lot of time experimenting on both blower and turbo cars, and agree with Dan, these setups are the best as they do a great job of pulling the oil out of the air before they vent (they are full of screens and plastic mesh), and they drain the oil back into the crankcase. No emptying puke cans.....
My 2 bits..

-Dave.

autox_mall_2008_engine (Large).jpg

[FLX109]

Originally Posted by davem

I've spent a lot of time experimenting on both blower and turbo cars, and agree with Dan, these setups are the best as they do a great job of pulling the oil out of the air before they vent (they are full of screens and plastic mesh), and they drain the oil back into the crankcase. No emptying puke cans.....
My 2 bits..

-Dave.

Attachment 1517

Looking good Dave.


Bill

[chimazo]

Originally Posted by davem

I've spent a lot of time experimenting on both blower and turbo cars, and agree with Dan, these setups are the best as they do a great job of pulling the oil out of the air before they vent (they are full of screens and plastic mesh), and they drain the oil back into the crankcase. No emptying puke cans.....
My 2 bits..

-Dave.

How do those mount, just go at the valve cover with a hole-saw?
Also, where did you get them?
Thanks!

[treesnake]

Originally Posted by davem

I've spent a lot of time experimenting on both blower and turbo cars, and agree with Dan, these setups are the best as they do a great job of pulling the oil out of the air before they vent (they are full of screens and plastic mesh), and they drain the oil back into the crankcase. No emptying puke cans.....
My 2 bits..

-Dave.

Attachment 1517

That looks like one BAD MO' FO'...
I almost wish I wouldn't have seen that.

[RTTTTed]

Originally Posted by FATHERFORD

That setup I shown is used on many mustang TT setups. I haven't heard of any issues of not passing emmissions. Then again with TT mustangs usually a little oil drop here and there is the least of their problems when it comes for inspection time. I know I personally have never seen any blue smoke come out of my tail pipes with this setup. So weather emmissions would be a problem

Also, when I was doing a little part time out at the machine shop in my teenage years, when putting 10-12" of vacuum on some healthy v8 engines we noticed upwards of 15-25hp at the flywheel on the engine dyno. This was using a vacuum pump.

Using the method I had in the drawing on boosted mustangs Pushrod/mod motors both, I have seen 21". Which you need to put a valve in to "bleed" off the vacuum and limit it to 12".

The first emmissions issue is removing the Pollution Control Vavle, that's illegal and doesn't recycle the oil vapors back into the engine.

The second emmissions failure is that you're removing unburned oil fumes and molecules from the inside of the engine and depositing them into the thousands of degrees exhaust where it is burned, causing pollution and unburned hydrocarbons.

Chysler originally published this particular modification the old Hustle Stuff performance book back in '71 I think. It was also published in the Direct Connection books after that. Listed as a "race only" modifications for the reasons I listed above. Nearly all Race cars come with that modification. Not legal in any state, although it's also illegal for the crankcase to be open to the atmosphere. My car did burn blue often when I used that mod on my cars. It also sucked enough oil out of the engine that I had to add oil because of it. If there's no baffle plates under the valve cover opening the rocker arms will throw oil droplets right into the tube.

Also illegal, I have an electric vacuum pump to a catch can and I notice that I do use a little oil. Of course there's No emmissions testing way out in the bush here.

Ted