38 replies to this topic

[Captain Bondo]

I would try putting some more fittings in the cam cover, like the rest of the hundreds of import drivers with north of 500hp do.

Try this thread:

http://www.honda-tec...e cover venting

If it works for a 750whp honda, it'll work for you.

[550]

volvo500bhp, on 08 November 2009 - 05:09 PM, said:

Hi H

The breather pot is small it does not need to be any bigger for me some like bigger ones for show it does have internal baffles etc but i left the internals to the company that made it .

As for your question i am not sure to be honest i don't think it would work but would be worth a try i only guessed and made my own system up the main problem is the standard breather box is not great at low boost levels.

The hose and coupling are -12 and -10 i can look back and see what the exact details are for you.All i did to fix them to the block was dril a small hole in the block outlet then fix with a small screw i have also since the pic fitted a plate to make sure they don't come out.

Russ




Hi 550 i am not sure if thats a good or bad comment LOL

Russ

Good! It looks bad ass! ;-)

When my PCV vented to atmosphere I had white smoke coming out the dipstick hole.

[BlackT5]

TorqueSteer, on 09 November 2009 - 01:47 AM, said:

Thats interesting, when I had the PVC line open to atmosphere, with no valve, AFRs were dead on and no codes thrown.

No problems with AFRs with the vented can open. I had no PTC valve and capped the vacuum port on the side of the intake manifold.

Where is the vacuum leak going to be ... besides not drawing it on the crank case?

[lookforjoe]

Captain Bondo, on 09 November 2009 - 07:00 AM, said:

I would try putting some more fittings in the cam cover, like the rest of the hundreds of import drivers with north of 500hp do.

Try this thread:

http://www.honda-tec...e cover venting

If it works for a 750whp honda, it'll work for you.

Makes sense..





...just have to figure out a viable spot on the cam cover to add a 2nd port, since we already have one... I guess this is gonna take a while...

BlackT5, on 09 November 2009 - 03:38 PM, said:

No problems with AFRs with the vented can open. I had no PTC valve and capped the vacuum port on the side of the intake manifold.

Where is the vacuum leak going to be ... besides not drawing it on the crank case?

I'll have to try again with all lines capped. right now, I have a repeat 0131 code, even though AFR's seem good. I tried putting a custom lookup table in Logworks to convert 0-5v to Gasoline AFR, but the scaling is way off - the gauge reads 14.7, the data stream representation says 10.5 - so something's off.

[Hanks]

You must have overlooked this post from me last week.....

http://volvospeed.co...ost__p__1674888

lookforjoe, on 09 November 2009 - 04:44 PM, said:

Makes sense..

...just have to figure out a viable spot on the cam cover to add a 2nd port, since we already have one... I guess this is gonna take a while...



I'll have to try again with all lines capped. right now, I have a repeat 0131 code, even though AFR's seem good. I tried putting a custom lookup table in Logworks to convert 0-5v to Gasoline AFR, but the scaling is way off - the gauge reads 14.7, the data stream representation says 10.5 - so something's off.

[volvo500bhp]

Captain Bondo, on 09 November 2009 - 07:00 AM, said:

I would try putting some more fittings in the cam cover, like the rest of the hundreds of import drivers with north of 500hp do.

Try this thread:

http://www.honda-tec...e cover venting

If it works for a 750whp honda, it'll work for you.

A good idea i did think of going this route if it became a problem but how to i am you could run a pipe straight off the top of the cam cover hole but for me that would not look right

550, on 09 November 2009 - 01:29 PM, said:

Good! It looks bad ass! ;-)

Great

Russ

[ozzimark]

lookforjoe, on 09 November 2009 - 04:44 PM, said:

...just have to figure out a viable spot on the cam cover to add a 2nd port, since we already have one... I guess this is gonna take a while...

What about that mystery hole that everyone keeps asking about that doesn't seem to be attached to anything?

[Captain Bondo]

volvo500bhp, on 09 November 2009 - 08:40 PM, said:

A good idea i did think of going this route if it became a problem but how to i am you could run a pipe straight off the top of the cam cover hole but for me that would not look right



Great

Russ

What part are you unsure of? You just drill holes and weld fittings on... weld a small baffle on the inside of each hole so the cam can't slosh oil into it.

[lookforjoe]

Hanks, on 09 November 2009 - 04:58 PM, said:

You must have overlooked this post from me last week.....

http://volvospeed.co...ost__p__1674888

Hi.

That port would go into the head itself - it doesn't open into the cam cover.

I guess one could just drill & tap the blank oil fill cap dummy - a pipe thread fitting would probably be fine.

[volvo500bhp]

Hi all i thought i would add to this as i have decided to make a few changes to my breather set up i have changed the cam cover so thought how is could improve the set up and try to keep it neat :



I used the standard plastic pipe into the top of the cam cover then cut it and joined the aeroquipt hose to it with a small clip that is hidden .





And did a trial fit of the spark plug cover before fitting the inlet manifold back on



While i was there i had a quick look inside to check all is well with my valve guides etc



I decided to go this route as when i pulled off the breather pipework there was a large amount of oil sitting in the cam cover pipe so thought this may help the engine breath even better as you can see i still have no oil collecting in the seperator if i can sort my gearbox troubles out i will be able to test it properly

Russ

[lookforjoe]

volvo500bhp, on 20 December 2009 - 09:07 AM, said:

Hi all i thought i would add to this as i have decided to make a few changes to my breather set up i have changed the cam cover so thought how is could improve the set up and try to keep it neat :

I decided to go this route as when i pulled off the breather pipework there was a large amount of oil sitting in the cam cover pipe so thought this may help the engine breath even better as you can see i still have no oil collecting in the seperator if i can sort my gearbox troubles out i will be able to test it properly

Russ

Russ, there's no pic of your separator/catch can...


I didn't end up going with a separate vent/box like yours, last month I just added a second vent off the cam cover via the oil cap, & back into the block drain via the stock box..










Anyway, it resolved all my overpressure issues, and now I have just the usual condensate in the catch can/separator

[volvo500bhp]

[quote name='lookforjoe' date='20 December 2009 - 05:47 PM' timestamp='1261331249' post='1698360']
Russ, there's no pic of your separator/catch can...

Hi Joe

This is my separator and catch can in one the pipe leading off under the car would go to a catch can but so far no need




Your new set up looks good i hope it works for you

Russ

[maciekb2002]

So Russ what you basically doing , you are venting crankcase gases straight to atmosphere after passing catch can. I tried to it with stock pcv can mounted on the block but I believe that piping diameter is not big enough.It was leaking oil from oil cap. What I did was. I took outlet hose that comes from catch can and attached it back to intake pipe to reduce pressure. Intake pipe under big boost have a lots of vacuum so it helps get rid of extra pressure inside crankcase. It is good idea to get some extra vent holes on top of the valve cover , but how to stop oil that wants to get out?

[lookforjoe]

[quote name='maciekb2002' date='20 December 2009 - 02:27 PM' timestamp='1261337262' post='1698403']
So Russ what you basically doing , you are venting crankcase gases straight to atmosphere after passing catch can. I tried to it with stock pcv can mounted on the block but I believe that piping diameter is not big enough.It was leaking oil from oil cap. What I did was. I took outlet hose that comes from catch can and attached it back to intake pipe to reduce pressure. Intake pipe under big boost have a lots of vacuum so it helps get rid of extra pressure inside crankcase. It is good idea to get some extra vent holes on top of the valve cover , but how to stop oil that wants to get out?
[/quote]


Maciek, his drains back to the block port - the line just isn't shown in these pics. If you add any vents to cam cover without a return it will push oil out like crazy. Before I did the drain-back can, the catch can accumulated a cup of oil within 100miles with the oil cap vented ...

[quote name='volvo500bhp' date='20 December 2009 - 12:58 PM' timestamp='1261331899' post='1698365']
[quote name='lookforjoe' date='20 December 2009 - 05:47 PM' timestamp='1261331249' post='1698360']
Russ, there's no pic of your separator/catch can...

Hi Joe

This is my separator and catch can in one the pipe leading off under the car would go to a catch can but so far no need
Your new set up looks good i hope it works for you

Russ
[/quote]

So, yours just vents to atmosphere from the can?

Yes, I'm happy with my setup now. The only thing I would change if I ever need to remove the cam cover, is to move the elbow to the cover itself instead of the cap.

[troyhyde]

Seems like a large vacuum tee at the top of the PCV relief line on the cam cover routed to a large tee at the PTC heater inlet would do a lot to vent pressure without creating extra oil accumulation anywhere. Use gravity to prevent oil from migrating. A couple inches of vertical off the head with an easier route for oil to take to the oil trap should keep the line fairly dry to the intake hose.

[lookforjoe]

troyhyde, on 21 December 2009 - 04:49 AM, said:

Seems like a large vacuum tee at the top of the PCV relief line on the cam cover routed to a large tee at the PTC heater inlet would do a lot to vent pressure without creating extra oil accumulation anywhere. Use gravity to prevent oil from migrating. A couple inches of vertical off the head with an easier route for oil to take to the oil trap should keep the line fairly dry to the intake hose.

Won't work. That idea effectively amounts to the same thing as this:



which is the same as this:



which I further modified thus:



After which I added the baffled can as illustrated before.

Unless the vent goes through a baffled can that drains back to the block drain point (which is sleeved down into the oil pan to prevent CC pressure acting on it) it will carry enough oil to drain your motor, under high boost conditions.

[randomdude]

hussein- have you thought about finding those CC's at whole sale, adding all those fittings and hoses you found that work, and selling it as a kit?

[lookforjoe]

randomdude, on 21 December 2009 - 07:54 PM, said:

hussein- have you thought about finding those CC's at whole sale, adding all those fittings and hoses you found that work, and selling it as a kit?

Hi.

No, I really don't have the time. I'm actually supposed to be working on my Master's Thesis as opposed to playing with all this stuff...

[volvo500bhp]

[quote name='lookforjoe' date='21 December 2009 - 02:10 AM' timestamp='1261361426' post='1698562']
Maciek, his drains back to the block port - the line just isn't shown in these pics. If you add any vents to cam cover without a return it will push oil out like crazy. Before I did the drain-back can, the catch can accumulated a cup of oil within 100miles with the oil cap vented ...
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Russ
[/quote]
So, yours just vents to atmosphere from the can?
Yes, I'm happy with my setup now. The only thing I would change if I ever need to remove the cam cover, is to move the elbow to the cover itself instead of the cap.
[/quote]

Hi H

I must take another pick the pipe coming from the base of the seperator tank goes into the line to the crank case it seems to work very well .

Yes it vents to atmosphere from the pipe leading from the back of the seperator .

Russ