CCV Straight Blow down or Catch Can? - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 11 (permalink) Old 02-21-2010, 10:58 PM Thread Starter
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CCV Straight Blow down or Catch Can?

Ok looking for some input. I've been running a straight 1'' CCV blow down for about a year. Dumps back by the Transfer case, works great, a little stinky when the wind blows just right and it marks it's territory...lol

As is I have the FS 2500 on the drivers frame rail and will soon be adding an Airdog and don't really want to add a catch can down on the frame also.

I'm thinking of relocating Batts to the same side to free up some room. Got some good ideas from Stroker67 kit, Thanks, just trying to make room under the hood of a 6.0 Any Ideas? Or just leave it the way it is?

06 F 350
AFE Stage 2, MBRP Turbo Back, Gauges, CTS, Studs, oem gaskets, O Ringed, Powermax, Accufab elbow, Z Max Intake, Elite uppipes, BDP waterpump, EGR Delete, FS 2500, Coolant Filter, AD 100, 6.4 Banjo's, Hi Idle Mod, CCV Mod, 58V FICM PHP tuned, Gearhead Tuned
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post #2 of 11 (permalink) Old 02-21-2010, 11:15 PM
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Re: CCV Straight Blow down or Catch Can?

You can leave it how it is, or if you want to make a catch can and possibly mount it on the inside of the frame rail instead of the outside that would work. Glad my thread helped you out though!

06 F250 Lariat CC SB FX4 6.0, EGR Delete by FCDP , 58v FICM by Quick Tricks, Autometer Gauges (Boost, Pyrometer, Trans. Temp), SCT X3 W/ IDT, 4" TB Straight Pipe, S&B CAI, ZOODAD, Retro-Solutions HID Kit (4300k), CCV Mod, Coolant Filter

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post #3 of 11 (permalink) Old 02-22-2010, 04:44 AM
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Re: CCV Straight Blow down or Catch Can?

Put it in the exhaust...
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post #4 of 11 (permalink) Old 02-22-2010, 05:38 PM Thread Starter
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Re: CCV Straight Blow down or Catch Can?

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Originally Posted by BoredandStroked View Post
Put it in the exhaust...
I don't think so.

But will be coming up with a under hood setup similar to BD's kit featured in DP for the 7.3 Just have to make some room

06 F 350
AFE Stage 2, MBRP Turbo Back, Gauges, CTS, Studs, oem gaskets, O Ringed, Powermax, Accufab elbow, Z Max Intake, Elite uppipes, BDP waterpump, EGR Delete, FS 2500, Coolant Filter, AD 100, 6.4 Banjo's, Hi Idle Mod, CCV Mod, 58V FICM PHP tuned, Gearhead Tuned
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post #5 of 11 (permalink) Old 02-22-2010, 10:01 PM
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Re: CCV Straight Blow down or Catch Can?

If I had to do it over again I would run mine into the exhaust just because I have oil all under the bottom of my truck. Granted I know thats a lot of blowby that shouldn't be happening but If I were to do it again like I will be soon I will be putting it in the exhaust.

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post #6 of 11 (permalink) Old 02-22-2010, 10:26 PM
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Re: CCV Straight Blow down or Catch Can?

In the exhaust, when done right, will pull the vapors from the crankcase.

2003 F-350 KingRanch 4x4
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post #7 of 11 (permalink) Old 02-23-2010, 12:00 AM
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Re: CCV Straight Blow down or Catch Can?

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In the exhaust, when done right, will pull the vapors from the crankcase.
Perxactly
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post #8 of 11 (permalink) Old 02-23-2010, 12:01 AM
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Re: CCV Straight Blow down or Catch Can?

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I don't think so.
Okay
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post #9 of 11 (permalink) Old 02-23-2010, 12:24 AM
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Re: CCV Straight Blow down or Catch Can?

There's been some interesting points regarding the pressure in the exhaust backing the ccv up. Theoretically I would agree that a properly mounted bung should help pull the fumes out. However, there are a lot of people who say putting it to exhaust is no good.

A thread I started a while back: CCV Mod to Exhaust? - Powerstroke Nation

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post #10 of 11 (permalink) Old 02-23-2010, 07:52 PM Thread Starter
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Re: CCV Straight Blow down or Catch Can?

Originally Posted by guzzle View Post
There have been a few people test the theory of the nipple cut at a 45 and welded into the exhaust, that supposedly creates a 'venturi' action and pull the CCV gases into the exhaust.

By using sensitive water manometer gauges connected to the crankcase via the oil fill tube, all seems well at an idle in the driveway. Once you get on the highway and put a load on the engine with some RPMs, the crankcase pressures begin to increase indicating that the exhaust is actually pressurizing the crankcase, no venturi action whatsoever.

Excessive crankcase pressures can blow seals, and at the very least, cause them to leak until the pressures are eliminated.


So has anyone been successful routing into the exhaust?

06 F 350
AFE Stage 2, MBRP Turbo Back, Gauges, CTS, Studs, oem gaskets, O Ringed, Powermax, Accufab elbow, Z Max Intake, Elite uppipes, BDP waterpump, EGR Delete, FS 2500, Coolant Filter, AD 100, 6.4 Banjo's, Hi Idle Mod, CCV Mod, 58V FICM PHP tuned, Gearhead Tuned
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