Catch Can / 347

1BadFox · January 8th, 2008, 05:59 PM

Is anyone running a catch can on their stroker? Is it needed and is it really recommended in anyones opinion...??? Pics if applicable...Thanks Fellas...

Darrell · January 8th, 2008, 06:26 PM

I'm assuming you no longer have the factory overflow? If not just buy a cheap Summit catch can.

1BadFox · January 8th, 2008, 06:45 PM

^ that is true...No oem over flow... I was thinking of the MOROSO can for crank case pressure/catch can...

Darrell · January 8th, 2008, 07:14 PM

Originally Posted by 1BadFox

^ that is true...No oem over flow... I was thinking of the MOROSO can for crank case pressure/catch can...

If you are able to put any oil in a catch can for the crank case you have some issues that need addressing. A PCV valve and breather is all you need. Or a vacuum pump and no breather or two breathers and no PCV works too.

5pntslw · January 8th, 2008, 07:16 PM

i have a 347 and all i run is a pcv valve...

1BadFox · January 8th, 2008, 07:50 PM

^ yeah me too! I have oil breather and the pcv valve...I have no oil or blow by issues...Just inq. I was just wondering if anyone was running a additional catch can do to me knowing the 347 strokers burn a lil more oil than OEM and just a thought if anyone was running one...Cool!

Darrell · January 8th, 2008, 11:40 PM

Originally Posted by 1BadFox

^ yeah me too! I have oil breather and the pcv valve...I have no oil or blow by issues...Just inq. I was just wondering if anyone was running a additional catch can do to me knowing the 347 strokers burn a lil more oil than OEM and just a thought if anyone was running one...Cool!

No actually they don't "burn a lil more oil than OEM" unless there was a machining error somewhere.

5pntslw · January 8th, 2008, 11:44 PM

well actually it depends on which 347 pistons and rods you have..... when i had the 5.4" rods mine smoked and burned more oil then i was comfortable with so a friend told me about the 5.315" rods... i got those and no more smoke and very little oil consumption..

ryans88gt · January 8th, 2008, 11:59 PM

Originally Posted by 1BadFox

^ yeah me too! I have oil breather and the pcv valve...I have no oil or blow by issues...Just inq. I was just wondering if anyone was running a additional catch can do to me knowing the 347 strokers burn a lil more oil than OEM and just a thought if anyone was running one...Cool!

Having a breather and a PCV isn't a good idea, that is basically like having a constant vacuum leak as the PCV is sucking air from the crankcase which is getting air through the breather.

One or the other, or a vacuum pump.

Stangzilla · January 9th, 2008, 12:23 AM

....

ryans88gt · January 9th, 2008, 12:38 AM

that was a worthless post, you just trying to add to your post numbers

Iwannagofast · January 9th, 2008, 12:38 AM

Originally Posted by Stangzilla

....

good answer

Iownastang · January 9th, 2008, 07:51 AM

Originally Posted by 5pntslw

well actually it depends on which 347 pistons and rods you have..... when i had the 5.4" rods mine smoked and burned more oil then i was comfortable with so a friend told me about the 5.315" rods... i got those and no more smoke and very little oil consumption..

i would not of said that,it has nothing to do with the rod to stroke ratio,there are worse out there.A 347 burning excessive oil is a rumor that people started a long time ago.Unless like darrell said ''machining errors.

Haggis13 · January 9th, 2008, 10:09 AM

Here's a question for you guys - Instead of putting a breather on my valve cover to releive crankcase pressure, would one of these work??

Breather tank

95StangMX · January 9th, 2008, 10:57 AM

ok I am new to the stroker and could someone please explain what i need to do a crankcase breather or pcv or what?

Darrell · January 9th, 2008, 11:11 AM

Originally Posted by 5pntslw

well actually it depends on which 347 pistons and rods you have..... when i had the 5.4" rods mine smoked and burned more oil then i was comfortable with so a friend told me about the 5.315" rods... i got those and no more smoke and very little oil consumption..

Rods have nothing to do with oil burning. Besides that you can't change rod lengths without changing pistons. If you had a 347 that smoked and burned oil then you need to find a different machinist/assembler. I've built several 347s and all of them are still on the road with several thousand miles and none of them burn oil.

95StangMX · January 9th, 2008, 11:40 AM

Originally Posted by Darrell

Rods have nothing to do with oil burning. Besides that you can't change rod lengths without changing pistons. If you had a 347 that smoked and burned oil then you need to find a different machinist/assembler. I've built several 347s and all of them are still on the road with several thousand miles and none of them burn oil.

understood you explained that myth to me a while back when I started putting together this build....but I do not know or have any info on this catch can or breather, and thought I already had a pcv valve maybe Im wrong but could you explain what these items are for and if I need to use 1 or all of them on my build please professor? lol

Darrell · January 9th, 2008, 11:48 AM

Originally Posted by 95StangMX

understood you explained that myth to me a while back when I started putting together this build....but I do not know or have any info on this catch can or breather, and thought I already had a pcv valve maybe Im wrong but could you explain what these items are for and if I need to use 1 or all of them on my build please professor? lol

I'd just use the stock PCV system.

ryans88gt · January 9th, 2008, 01:34 PM

The PCV valve on an EFI mustang is on the back of the lower intake, it is bascially a check valve with an oil screen under it. A vacuum hose hooks directly from the upper manifold to the valve, you can't really see it unless you look behind the intake.

nolife · January 9th, 2008, 02:28 PM

Originally Posted by 95StangMX

ok I am new to the stroker and could someone please explain what i need to do a crankcase breather or pcv or what?

IMHO, use what was on there before, that is a PCV hooked up and an oil cap with the oil cap vent hole attached to the line near the throttle body. If you are not using forced induction, this should work fine.

January 8th, 2008, 05:59 PM	#1
1BadFox Regular 1988 Mustang LX SSP Join Date: Jan 2008 Location: Tampa, Fl. Posts: 161	Catch Can / 347 Is anyone running a catch can on their stroker? Is it needed and is it really recommended in anyones opinion...??? Pics if applicable...Thanks Fellas... __________________ MUSTANG CLASSIFIEDS: 1988 Mustang LX SSP http://mustangclassifieds.com/mustang-2587.html *Also posted here on MODDED MUSTANGS/Classifieds*

January 8th, 2008, 06:26 PM	#2
Darrell Feb 08 ROTM 1990 Mustang LX 9.36@143 mph Join Date: Jan 2006 Location: Fond du Lac, Wisconsin Posts: 7,025	I'm assuming you no longer have the factory overflow? If not just buy a cheap Summit catch can. __________________ Racing in memory of Dave Bandt 11/19/69 - 3/23/08 "he's traded his wheels for wings" Professor of Natural Aspiration Thanks to: Artie at Trick Flow, Dave at Team Z Motorsports, Brian at Total Engine Airflow and Harold at Furo Racecraft

January 8th, 2008, 06:45 PM	#3
1BadFox Regular 1988 Mustang LX SSP Join Date: Jan 2008 Location: Tampa, Fl. Posts: 161	^ that is true...No oem over flow... I was thinking of the MOROSO can for crank case pressure/catch can... __________________ MUSTANG CLASSIFIEDS: 1988 Mustang LX SSP http://mustangclassifieds.com/mustang-2587.html *Also posted here on MODDED MUSTANGS/Classifieds*

January 8th, 2008, 07:16 PM	#5
5pntslw Newbie 1995 Mustang GT n/a until march Join Date: Jan 2008 Location: yorktown va Posts: 22	i have a 347 and all i run is a pcv valve... __________________ '95 GT 347 stroker, auto trans and some gas

January 8th, 2008, 07:50 PM	#6
1BadFox Regular 1988 Mustang LX SSP Join Date: Jan 2008 Location: Tampa, Fl. Posts: 161	^ yeah me too! I have oil breather and the pcv valve...I have no oil or blow by issues...Just inq. I was just wondering if anyone was running a additional catch can do to me knowing the 347 strokers burn a lil more oil than OEM and just a thought if anyone was running one...Cool! __________________ MUSTANG CLASSIFIEDS: 1988 Mustang LX SSP http://mustangclassifieds.com/mustang-2587.html *Also posted here on MODDED MUSTANGS/Classifieds*

January 8th, 2008, 11:44 PM	#8
5pntslw Newbie 1995 Mustang GT n/a until march Join Date: Jan 2008 Location: yorktown va Posts: 22	well actually it depends on which 347 pistons and rods you have..... when i had the 5.4" rods mine smoked and burned more oil then i was comfortable with so a friend told me about the 5.315" rods... i got those and no more smoke and very little oil consumption.. __________________ '95 GT 347 stroker, auto trans and some gas

January 9th, 2008, 12:23 AM	#10
Stangzilla MM Fanatic Join Date: Aug 2006 Location: On my way to Baines's house!! Posts: 3,007	.... __________________ Rotating The Earth 1320 Feet At A Time!! The very existence of flamethrowers proves that sometime, somewhere, someone said to themselves, “You know, I want to set those people over there on fire, but I’m just not close enough to get the job done.”

January 9th, 2008, 12:38 AM	#11
ryans88gt MM Fanatic Join Date: May 2007 Location: Bloomington, IL Posts: 3,553	that was a worthless post, you just trying to add to your post numbers __________________ 89 LX 515 hp 497 ftlbs 11.3 @ 125 mph 88 GT 11.4 @ 118

January 9th, 2008, 10:09 AM	#14
Haggis13 Regular 1993 Mustang GT Join Date: Sep 2006 Location: Ottawa, Ontario, Canada Posts: 483	Here's a question for you guys - Instead of putting a breather on my valve cover to releive crankcase pressure, would one of these work?? Breather tank __________________ Bart 93 Black on Black GT Kenne Bell S/C

January 9th, 2008, 10:57 AM	#15
95StangMX Enthusiast 95 Mustang GT ?? waiting on the stroker Join Date: Oct 2007 Location: Playa del Carmen, Mexico Posts: 932	ok I am new to the stroker and could someone please explain what i need to do a crankcase breather or pcv or what?

January 9th, 2008, 01:34 PM	#19
ryans88gt MM Fanatic Join Date: May 2007 Location: Bloomington, IL Posts: 3,553	The PCV valve on an EFI mustang is on the back of the lower intake, it is bascially a check valve with an oil screen under it. A vacuum hose hooks directly from the upper manifold to the valve, you can't really see it unless you look behind the intake. __________________ 89 LX 515 hp 497 ftlbs 11.3 @ 125 mph 88 GT 11.4 @ 118

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