|
Sponsored Links (Register now to hide all advertisements) |
|
|
Thread Tools | Display Modes |
04-19-2018, 08:00 AM | #81 |
Senior Member
Join Date: Jul 2010
Posts: 2,593
|
Re: Opinion on PCV valve for flathead?
Try plumbing in a air/fuel ratio gauge and see what happens when you add a pcv.
Pcv's are a vacuum leak however you look at them, modern stuff's computer's deal with it fine, it's a bit of a job trying to get a carburettor to deal with it. Obviously the oily air gets burnt in the combustion process, but it still lowers the resistance to detination (sp?) as does the vacuum leak. This ain't really a concern on a naturally aspirated engine, but bring a supercharger to the party and the needs change. The importance of clean air and good gas goes up massively. All that being said, with a supercharged engine why make it more prone to detination? A step in the wrong direction I feel. You can imagine what you want. Martin. |
04-19-2018, 08:17 AM | #82 | |
Senior Member
Join Date: May 2010
Location: East Hartford, Ct
Posts: 5,898
|
Re: Opinion on PCV valve for flathead?
Quote:
__________________
DON'T RECALL DOING SOMETHING FOR MYSELF BASED ON SOMEONE ELSE'S LIKES OR DISLIKES |
|
Sponsored Links (Register now to hide all advertisements) |
|
04-19-2018, 02:02 PM | #83 |
Senior Member
Join Date: Jul 2010
Posts: 2,593
|
Re: Opinion on PCV valve for flathead?
That's contrary to what I have found. On a wide band gauge setup and on a workshop exhaust sniffer, the difference was notable, hence my post.
And again, we're talking a supercharged engine here. The fuel mixture is critical so why throw in a variable that ers on the side of lean? I'd vent to atmosphere, with a catch can. Simple and absolutely won't screw with the fuel curve or effect the rest of the engine in any negative way. Sure makes sense to me. Martin. |
04-19-2018, 06:07 PM | #84 | |
Senior Member
Join Date: Dec 2010
Location: East Coast in CT
Posts: 1,524
|
Re: Opinion on PCV valve for flathead?
Quote:
Ronnieroadster
__________________
I use the F word a lot no not that word these words Flathead , Focus and Finish. "Life Member of the Bonneville 200 MPH Club using a Ford Flathead block" Owner , Builder, Driver of the First Ford Flathead bodied roadster to run 200 MPH Record July 13, 2018 LTA timing association 200.921 in one and a half miles burning gasoline. First ever gas burning Ford flathead powered roadster to run 200 MPH at Bonneville Salt Flats setting the record August 7th 2021 at 205.744 MPH |
|
04-19-2018, 06:11 PM | #85 | |
Senior Member
Join Date: Jan 2012
Location: New Jersey
Posts: 1,423
|
Re: Opinion on PCV valve for flathead?
Quote:
|
|
04-19-2018, 06:17 PM | #86 |
Senior Member
Join Date: Jan 2012
Location: New Jersey
Posts: 1,423
|
Re: Opinion on PCV valve for flathead?
Sponsored Links (Register now to hide all advertisements)
Sure makes sense to me". Martin. Can you elaborate on the catch can set up? Is the pcv still used? Thanks |
04-19-2018, 06:19 PM | #87 |
Senior Member
Join Date: Jan 2012
Location: New Jersey
Posts: 1,423
|
Re: Opinion on PCV valve for flathead?
|
04-19-2018, 06:20 PM | #88 | |
Senior Member
Join Date: Jan 2012
Location: New Jersey
Posts: 1,423
|
Re: Opinion on PCV valve for flathead?
Quote:
Thanks! |
|
04-21-2018, 07:13 AM | #89 | |
Senior Member
Join Date: Sep 2011
Location: Christchurch New Zealand
Posts: 1,610
|
Re: Opinion on PCV valve for flathead?
Quote:
Where exactly is the AF gauge sensor installed? As i understand the location of the sensor is important to correct readings. Phil NZ |
|
04-21-2018, 01:50 PM | #90 | |
Senior Member
Join Date: May 2010
Location: East Hartford, Ct
Posts: 5,898
|
Re: Opinion on PCV valve for flathead?
Quote:
Mine is located about 4 inches behind the left Fenton exhaust flange and in an upper most quadrant of the exhaust pipe.
__________________
DON'T RECALL DOING SOMETHING FOR MYSELF BASED ON SOMEONE ELSE'S LIKES OR DISLIKES Last edited by 51 MERC-CT; 04-21-2018 at 02:30 PM. |
|
04-21-2018, 03:24 PM | #91 |
Senior Member
Join Date: Jan 2012
Location: New Jersey
Posts: 1,423
|
Re: Opinion on PCV valve for flathead?
Mine's a little further down the exhaust as per the manufacturer. I've been reading up on the catch cans and I don't see how it could hurt to have one. It seems like what I'm hearing as compared to what I'm reading about these things, is that it's beneficial especially with a supercharger. It will remove most of the heavy crap from the air going through it. Thoughts??
|
04-24-2018, 06:36 PM | #92 |
Senior Member
Join Date: Jan 2012
Location: New Jersey
Posts: 1,423
|
Re: Opinion on PCV valve for flathead?
Can anyone comment any further on a catch can and PCV set up?
|
04-24-2018, 07:10 PM | #93 | |
Senior Member
Join Date: Dec 2010
Location: East Coast in CT
Posts: 1,524
|
Re: Opinion on PCV valve for flathead?
Quote:
Dont have a clue as to what a catch can would accomplish. Its certainly no substitute to what a PCV valve is doing. However A catch can is used when a vacuum pump is added to the crankcase in that capacity the catch can separates the water vapor from the oil. This type of system would only be used in an all out racing application. The one drawback to using a vacuum pump is theres a possibility if the draw is to high oil can be drawn from vital areas such as the piston wrist pins. Ronnieroadster
__________________
I use the F word a lot no not that word these words Flathead , Focus and Finish. "Life Member of the Bonneville 200 MPH Club using a Ford Flathead block" Owner , Builder, Driver of the First Ford Flathead bodied roadster to run 200 MPH Record July 13, 2018 LTA timing association 200.921 in one and a half miles burning gasoline. First ever gas burning Ford flathead powered roadster to run 200 MPH at Bonneville Salt Flats setting the record August 7th 2021 at 205.744 MPH |
|
04-25-2018, 03:44 AM | #94 |
Senior Member
Join Date: Jan 2012
Location: New Jersey
Posts: 1,423
|
Re: Opinion on PCV valve for flathead?
Ronnie, I was looking at it in a different way. This would be used in conjunction with the PCV, being mounted in between the PCV and the vacuum source.
Here's what I've read: Separates oil particles from PCV/CCV air using 50 micron bronze filter 100% billet 6061 aluminum sealed can Defends intercooler, intake system, and essential components from oil blow-by Helps maintain proper octane levels to reduce potential detonation I was looking at it as sort of an air cleaner before it's returned to the motor Thanks, Joe |
04-25-2018, 02:45 PM | #95 | |
Senior Member
Join Date: Dec 2010
Location: East Coast in CT
Posts: 1,524
|
Re: Opinion on PCV valve for flathead?
Quote:
Ronnieroadster
__________________
I use the F word a lot no not that word these words Flathead , Focus and Finish. "Life Member of the Bonneville 200 MPH Club using a Ford Flathead block" Owner , Builder, Driver of the First Ford Flathead bodied roadster to run 200 MPH Record July 13, 2018 LTA timing association 200.921 in one and a half miles burning gasoline. First ever gas burning Ford flathead powered roadster to run 200 MPH at Bonneville Salt Flats setting the record August 7th 2021 at 205.744 MPH |
|
04-26-2018, 02:57 PM | #96 | |
Senior Member
Join Date: Jan 2012
Location: New Jersey
Posts: 1,423
|
Re: Opinion on PCV valve for flathead?
Quote:
|
|
05-26-2018, 09:01 AM | #97 |
Senior Member
Join Date: Jan 2012
Location: New Jersey
Posts: 1,423
|
Re: Opinion on PCV valve for flathead?
Update on the pcv install. I found a dual circuit pcv valve made by Wagner so you can adjust your idle and cruise vacuum requirements separately as well as how much vacuum you're pulling through the pcv. At idle, I'm at 2 inches and cruise about 7 inches. I ran the return back to the carb through a catch can set-up that has a 50 micron bronze filter to help clean up the air a bit and remove moisture or oil before it's reintroduced into the motor. I also installed a K&N breather cap and blocked of the oil pan vent. I just went for a test run and I din't notice any changes as far as air/fuel ratio's.
I did notice that when I'm stopped at a light there's no more smoke!! This is a plus and the main reason I installed this set-up. I know some of you will say it's too expensive and unnecessary, but with the supercharger and detonation being a potential problem, I wanted to be able to adjust the system accordingly. It's a small price to pay compared to a burnt up motor. Last edited by jrvariel48; 05-27-2018 at 06:57 AM. |
05-26-2018, 09:31 AM | #98 |
Senior Member
Join Date: May 2010
Location: Coral Springs FL
Posts: 10,919
|
Re: Opinion on PCV valve for flathead?
I don't run a PCV on my 8BA. Tried one and found car ran better without it.
|
05-17-2020, 02:03 AM | #99 |
Junior Member
Join Date: Oct 2019
Location: Blairsville,Ga
Posts: 2
|
Re: Opinion on PCV valve for flathead?
My 63 Cadillac I used to own pulled the crankcase gases right up to the Carburetor using a PCV valve and used a ventilated oil filler cap. I never had any problem with it except you had to keep the PCV valve clean and it was mounted horizontally. I going to do the same with my flathead. only 10 years late than your posts.
|
05-17-2020, 09:02 AM | #100 |
Member
Join Date: May 2010
Location: south cent Ky
Posts: 70
|
Re: Opinion on PCV valve for flathead?
I have a system similar to this set up. After a few thousand miles I have had no problems and I have no blow by inside the car--I don't miss it!
|
Thread Tools | |
Display Modes | |
|
|
Sponsored Links (Register now to hide all advertisements) |
|