Coming from the NASCAR world. You'll be surprised on how much air filter height and the base of the air filter works I've seen 20-25 horsepower on a chassis, Dino!!
As long as a filter has enough capacity to not restrict, it can often smooth the flow through the carb giving a better more consistent signal to the venturi..
@@woods-garage I came to the comments to say this exact thing. I worked at a local drag strip for a few years and watched many 1/8th mile index racers looking for 1 tenth or so and can't find it. Then they slap an air filter on and break out by a tenth+. It's crazy that the things they we assume will hurt power will actually help make more power.
Way back in the mid 80’s I ran a tall filter kit by Moroso that I felt the difference in performance. It was about 5 in tall but fit under the hood and had a much more dramatic radius curve in the base pan, to help it fit under a hood.
Back in the early 80s I built a iron block 490ci 385 series BBF with 429CJ heads and a built 750 carb flowing 780+ she pulled 823 hp @8500-9000 on good pump gas on the dyno and it had a big stacked air cleaner on it to and yes those BBFs like rpm and will live thru it.
Steve, it actually makes a bit of sense that the filter helps it. If the filter is super non restrictive, I could see how it would improve. Think of a gas lense in a tig torch. It evens out the airflow and causes it to be laminar instead of turbulent. In this case, it’s probably smoothing out the way the air is entering the carburetor. With the amount of air that engine is moving, it’s almost definitely turbulent due to the air velocity. However, not all turbulence is the same (think small and big bumps when riding in an airplane). If it’s reducing the amount of turbulence entering the engine, the fuel mixture and distribution are probably a lot more consistent and evenly distributed due to the lensing effect of the air filter. Interested to hear your thought on this idea.
One of my friends had a nearly identical combination (his was 513 cubic inches, single 1050 Dominator). It pushed a 67 Mustang fastback deep into the 7s.
So it must be fairly light,well under 3000 lbs.I raced a 3500 lbs Malibu with blown 538 bbc and calculated that even high sevens would require well over 1200 hp.What is deep sevens more accurately?@@owggarage723
Agree with most of the airflow comments below. That cyl. head intake combo looks awesome. Engine sounds sweet. Nice combo , would be good to see one that Steve can tweak more. Many thanks.
More Ford Content! Great feature. People constantly overlooking the BBF in favor of the BBC, it's the hidden gem of the motor world lol. I would also say a few things with respect to the power gain: 1) did you run the "Base Combo" again? I would be interested to see if it picks up power after a few runs warming the oil and settling the cam and rockers in. 2) One hypothesis is that the Filter acted almost like another manifold, slowing or sort of trapping air and therefore making it easier for the carb to pull it through. I see you turned the fans on right before each run, they appear to be pushing air out of the room? If that is the case that would also pull air away from the engine (which would make sense that a large filter which traps air and slows it down would make more power)...This affect would probably happen even if the fans were pulling air from outside and pushing it into the room. I could also be very wrong though. Great video either way BBF FTW!!
Agree with the smoother air flow comments. With the filter media I believe the air flow gets very laminar and the engine is able to digest more CFM as a result. Love your content - thanks for sharing.
The filter allows just enough airflow to slow/settle down for it to be more evenly distributed throughout the intake at the same time allowing for fuel mixture to optimize more evenly. All wile creating a bigger vaccume
Agree. I love the deep tone of a well built BBF. Such a unique tone. I used to be able to ID one at the strip just from the sound. Now I’m just old! 🤷🤣
The plate creates what is called the Coanda effect and the air filter creates diffusion thus making the fuel vaporize more (droplet break up) making the fuel burn better.
I love to see you working on the NA stuff! It's so awesome hearing you talk about the old cup engines and pro stock stuff, because it was a time of innovation and finesse in engineering.
The filter gives a better signal to the carb, and its enrichening the mixture just the right amount, or somehow the restriction helps lol. Or a combo of all three or just two. Enjoyed the vid
I believe the reversion that comes all the way out of the carburetor hits the air cleaner lid and helps with pulse wave tuning, just like header length matters. It picked up throughout the whole curve. But what do I know
Weeeeeeell someone applied their master's degree in fluid dynamics appropriately !!! Great job to whom ever designed the initial blueprint and air inlet carb set up etc. I'm sure tuning has a little to do with its success but the design and initial blueprint got you there so credit is definitely due there !
Ive actually read some awesome studies about this very thing back in the day. Theres been tons of research done about the effects different filters have on the fuel delivery/atomization through carburetors. Its amazing how different filters, spacers, and of course intakes effect atomization of fuel. You can adjust a spray nozzle into a perfect mist, but when you spray it into a fan on high, everything changes. Sorry to ramble, just a very interesting subject i dove into years ago while dirt track racing. Every little bit counted when it came down to the stringent rules given for the class i ran. A good filter will actually help power by improving the atomization of fuel delivered by the carb. A nice clean burn is good for power. That can be achieved by stopping turbulent air and cleaning up the delivery. Lots more goes into this, but thats a very quick amd dirty synopses.
Steve you have to be the most down to earth man. You seem like my brother or best friend the way you teach us about your engines, which are more superior then them all. I love your channel please keep the videos coming. Thanks for sharing and God bless you and your family and friends.
The inlet manifold may be a little excessive for the application, and once the filter is applied, it creates a better Venturi effect, causing the power to be increased
The air filter is a vary small restriction witch causes laminar airflow.The venturies respond with better atomization and distribution increasing horsepower. Nice build !
I believe having just the base on would be creating a better path for air into the carburetor. Then adding filter could make the air entering more uniform and can syphon the fuel better. It might also help how the fuel is mixed into the air for better distribution to the cylinders . I wonder if the EGT temps were more even with the filter. Great stuff .Thanks for sharing.
love the dyno pulls! But I would like to see/hear the pull from outside the building. Yeah, where the exhaust goes out. Bet it sounds awesome! Just my weirdness coming out.😆
Awesome Thanks for Another great Lesson professor Morris!! Thanks for sharing, Also love seeing sugar Momma in the intro !!! Great Channel Keep up the Amazing Work !!!!
The base improves because of the rounded edge, the filter improves it because the restriction lowers afr slightly, meaning carb could be richened up a bit maybe. Ive had it happen with my motorcycles 🤷♂️
With limited air intake (one carburetor) you get very high speed air which can cause some "stand off" and air disturbance above the carburetor. I think the cover over the top of the air filter and the quality filter are helping "smooth" the air flow which is giving a more consistent signal to the boosters in the carburetor.
Much like we used to do in the early to mid 90s to improve ait flow for maf engined, rather smoothing air flow when going from say a 65 mm throttle body to a 90mm unit. The air becomes extremely turbulent causing a power production issue. Was magnified with boost We would put chicken mesh before the maf which stabilized the air flow into the maf causing power protection to be more tunable and resulted in more power. The carb on that motor has a massive choke hole causing turbulent air. The mesh from the filter smooths the air flow causing stable tuning resulting in more power production. Or in your case allowing the tune to be stable and the engine to utilize all of what your feeding it
K&N had those carb velocity adapters, back in the day, for carbs with and without a choke. I tried one and definitely helped my car run smoother while cruising.
The filter acts as a intake resonator which helps with intake pulse harmonics. Mazda does something similar with their gen 2 skyactic engines with a large internal volume intake everything, but then chokes the very front snorkel.Think flywheel but for your intake air. Thats my guess. You can test by mathing out the intake runner harmonic orders, then pay attention to those RPM ranges for performance. The white line on the graph you showed displayed better peaks at certain RPM ranges. Try different shape/size air filters and pay attention to those peaks.
Hi Steve , Interesting that you got more power with the filter on, I have the same experience with bike engines, best I can figure it out is that the filter straightens the airflow and takes out the turbulence in the airflow cleaning up the signal for the carb and the base stops opposing airflow from the bottom confusing everything !!
When I've run into the more HP from a air filter, it was because the 4 outer cylinders were running slightly lean and the inner 4 were rich, but the overall mixture was good. That is taken care of in a dual carb engine, but not in a single carb one. Port or direct injection usually doesn't have this issue except to a minor degree. The only way to tell for sure is to have 8 O2 or 8 EGT sensors installed.
Concerning the filter question, it will depend on the size of the main fuel intake jet. The tuning could require a filter with a larger air flow than a regular filter, and if the jet is bigger, sometimes you will get the opposite results more power with less air flow restrictions 😊
Engine masters tested different attachments on the carburetor and the salad bowl shape made the most power, by a good bit if I remember correctly. Does anyone else remember better than I do?
filter raises the peak flow point to half way up the filter for better inflow. you can see the sand fabric pull in deeper concave at the mid height point on the filter... higher flow velocity as air is detached from the plate.
I think the radius base helps increase air speed/decrease turbulence into the carb, when the filter is on it increases the flow by forcing air to come across the radius more so than coming from all directions.
Stated in other comments also, buy my idea is that w/ no filter, the area an inch or so above the venturi's is very turbulent and the filter prevents the air from getting 'dirty' just before it is pulled in the carb.
Like others, I believe there may be air vortices when run w/o the base, and the base smoothes out the flow and then the filter adds more favorable smooth air flow.
Air speed, a restrictive component can speed up the average airspeed and that added airspeed above the valves can match up with the resonance of the long tube intake runners.
With the filter and cap, the air is forced to come in a more smoother flow. Like a river where it necks down, the water speed up. Without the filter the air just flows in how ever it wants AKA shotgun effect. I would like to see what would happen if you doubled the air filter hight and see what happens. Another great video, and yes I learn something on each video. Be blessed brother
A property called “laminar flow” is what makes the filter work… the air in the cel is turbulent and the filter in affect diffuses that turbulence increasing cfm through the induction system… A good and properly sized filter with a well designed base/lid combination will always flow more than just a bellmouth… I’ve proved this many times on my flowbench.
Engines are basically air pumps. They pull in air on one end and push it out the other. The base of the carburetor and the filter itself are helping to stabilize the airflow going into the intake. You must always account for the the CFM of air the engine ingests while tuning any engine. Unrestricted, the engine is pulling in too much air and is leaning out the fuel air mixture leading to the drop in power.
Kinda what I’ve learned just messing with dirt bikes. With a filter it creates a little more of a vacuum effect in the carb pulling more fuel volume through the jets. Also smoothing the pulse creating a more consistent flow for the venturis to work. As long as the filter isn’t restricting the amount of air needed to match the fuel it usually picks up power.
As long as the filter is large enough to not be restrictive, it helps to straighten and smooth the airflow into the carburetor. It creates less turbulence at the inlet. The base helped some, but the majority of it is from the filter. If the base was raised, you’d see a difference that way as well.
That thing sounds better than 1500 hp the way it revs like a small block and the urgency it puts down when accelerating...very solid build and very well thought out. BTW, I agree with you, flow dynamis is at play... a free flow filter with a good radius base and lid smooths the air flow and relieves small vortices. In the old days we double stacked air filters on the radiused base and lid of 14" moroso air cleaners and it definitely smooths out the tourque curve and you can see it on the lambda a/f and egts when dynoing. It was repeatable results on most carbed deals. Talkin old school, the trusty "901" didn't lie, forgive or misinform. Air cleaners work and especially going down the track. You don't want a scoop blowing 150mph turbulent air across the top of a carb. You want precise metering and no leaning out at high engine speed especially. Great chanel Steve❤ God bless you and the family buddy🙏.stay safe.
The air is coming in with less turbulence due to the direction of flow caused by the filter base and filter. This is resulting in better fuel atomization passing the venturis and probably even resulting in slightly more air into the cylinders. Without the base and filter the air would have been rushing into the vacuum above the carburetor from above, sideways and below causing the air to swirl around above the carb. If I could draw a picture, it would explain it better, but I think you get my point. Nice build, I like it!
Hey Steve, Tim here, i think the filter straightens out the air, less turbulence, over the air bleeds, AND booster, hos base sure is nice......my secong thought it gained b'cuz the carb is a smidge to big, , but for what he's wantin to do, a 50 or 100 cfm less carb, with the filter mite kill it......the combo HAS to work in harmony!!!.......those are my thoughts.......LOVE ur channel, and i darn my SME t-shirts at work, twice a week!!!....PEACE to you sir!!
I had a 2bbl claimer engine that picked up 3 when I stacked a cpl of air cleaners on it. And another one with a proper tall filter. My theory was that the tall filter provided enough air to not be a restriction but cleaned up the turbulence into the carb.
I believe it's because without the filter the air flow is entering the engine at a wider base where with the filter it's channeling the air from the top drawing it directly into the intake therefore creating more horsepower. All in all it's more of a direct air flow. With the air cleaner cover on it creates the engine to have to draw are rather than just sucking air without.
Nothing better than a NA big block revving to 9000rpm. Im a chevy guy but can appreciate Ford stuff like this.
Ain't nothing like Ford power💪🏿
Are there any Ford part numbers on this beast?
I like big Fords and I cannot lie.
Those other brothers cant deny!
I'd love to put a motor like this in my 72 1.5 ton super duty!
When a car rolls by wit an itty bitty base and big block in yo face you get sprung!
Nothing has the deep tone of a BBF. Very distinctive.
Me too!!! 👍🇺🇸👍🇺🇸
Reminds me of a episode of “engine masters” where they tested a bunch of different filters..
And the salad bowl kicked ass.. 😂😂😂
Coming from the NASCAR world. You'll be surprised on how much air filter height and the base of the air filter works
I've seen 20-25 horsepower on a chassis, Dino!!
Thanks for the Ford content!
Thanks Steve. S,M.
The filter gave it a medium to align the air to flow smoothly over the Bass
Stabilized the air wich created better atomization of the fuel. ... but you were close
@@mcintyretyler89 I was going with the filter is helping clean up the air flow through the carb.
agreed
@johnhufnagel air flow should be cleanest with out a filter.... no restrictions....but a carburetor runs off vacuum
It's the difference in pressures that make them work
Filter cleans up the air turbulence. I’ve experienced it before and it makes perfect sense.
Now here is a comment with some thought behind it..
Its simply atomizing the fuel better brother
I agree and I think the filter cfm capacity is much larger than the carb
The addition of the filter and the LID gave it a smoother air flow creating a venturi affect?
thanks Steve, love your channel!!! Ford power baby!!!
We need more fords
to replace all the broken ones?
@@korn38ktmIt’s obvious you know NOTHING about Fords!
@@korn38ktm I know you really meant to say to finish shattering all you morons hearts...... I see you have seen way too many Ford taillights!
@@korn38ktm He said more FORD'S, not LS ...
@@korn38ktm you misspelled Chevy wrong twinkboy
Thank you so much for doing a Ford motor
The blue oval on the thumbnail got me excited! 😃 I love this channel, but also love Fords!
Yeah, would love to see lot more Big Block Ford stuff with Steve.
As long as a filter has enough capacity to not restrict, it can often smooth the flow through the carb giving a better more consistent signal to the venturi..
The filter stabilized the air wich atomized the fuel better
Which?@@mcintyretyler89
Yes, and it’s possible the flow went from turbulent to laminar.
@@woods-garage I came to the comments to say this exact thing. I worked at a local drag strip for a few years and watched many 1/8th mile index racers looking for 1 tenth or so and can't find it. Then they slap an air filter on and break out by a tenth+. It's crazy that the things they we assume will hurt power will actually help make more power.
Way back in the mid 80’s I ran a tall filter kit by Moroso that I felt the difference in performance. It was about 5 in tall but fit under the hood and had a much more dramatic radius curve in the base pan, to help it fit under a hood.
Killer build, and video! Love the 385 series!!!
Back in the early 80s I built a iron block 490ci 385 series BBF with 429CJ heads and a built 750 carb flowing 780+ she pulled 823 hp @8500-9000 on good pump gas on the dyno and it had a big stacked air cleaner on it to and yes those BBFs like rpm and will live thru it.
Steve, it actually makes a bit of sense that the filter helps it. If the filter is super non restrictive, I could see how it would improve. Think of a gas lense in a tig torch. It evens out the airflow and causes it to be laminar instead of turbulent.
In this case, it’s probably smoothing out the way the air is entering the carburetor. With the amount of air that engine is moving, it’s almost definitely turbulent due to the air velocity. However, not all turbulence is the same (think small and big bumps when riding in an airplane). If it’s reducing the amount of turbulence entering the engine, the fuel mixture and distribution are probably a lot more consistent and evenly distributed due to the lensing effect of the air filter. Interested to hear your thought on this idea.
More Ford!!!!
I love to hear them sing around 9 thousand RPM and you build a mean motor!! 👍
One of my friends had a nearly identical combination (his was 513 cubic inches, single 1050 Dominator). It pushed a 67 Mustang fastback deep into the 7s.
Must ve been very light car if you are talking 1320 ft numbers.
@@teknoaija1762 square tube 4 link chassis built in the 90s.
So it must be fairly light,well under 3000 lbs.I raced a 3500 lbs Malibu with blown 538 bbc and calculated that even high sevens would require well over 1200 hp.What is deep sevens more accurately?@@owggarage723
Agree with most of the airflow comments below. That cyl. head intake combo looks awesome. Engine sounds sweet. Nice combo , would be good to see one that Steve can tweak more. Many thanks.
1 of the best sounding engines to roll through your channel
More Ford Content! Great feature. People constantly overlooking the BBF in favor of the BBC, it's the hidden gem of the motor world lol.
I would also say a few things with respect to the power gain:
1) did you run the "Base Combo" again? I would be interested to see if it picks up power after a few runs warming the oil and settling the cam and rockers in.
2) One hypothesis is that the Filter acted almost like another manifold, slowing or sort of trapping air and therefore making it easier for the carb to pull it through. I see you turned the fans on right before each run, they appear to be pushing air out of the room? If that is the case that would also pull air away from the engine (which would make sense that a large filter which traps air and slows it down would make more power)...This affect would probably happen even if the fans were pulling air from outside and pushing it into the room. I could also be very wrong though.
Great video either way BBF FTW!!
Love seeing fords
Agree with the smoother air flow comments. With the filter media I believe the air flow gets very laminar and the engine is able to digest more CFM as a result.
Love your content - thanks for sharing.
Big block ford!!
Nothing better!!!
Well maybe a smx!!!
Being a ford guy , love my BBF’s
Being a SME guy, love the smx!!
Great work SME!!
As always!!
Best part about being a Ford guy is not having to talk about how you love BBCs.
Now…imagine a SMX version of a BBF. Billet block and all. WOW 😎
billet block/head BBF’s have been available for years.
Great to see a BB ford. Very underrated engine.
Maybe drag racing, BBF is legendary, arguably on the top in mud racing/truck pulling
The filter allows just enough airflow to slow/settle down for it to be more evenly distributed throughout the intake at the same time allowing for fuel mixture to optimize more evenly. All wile creating a bigger vaccume
Steve, that is a wicked BBF, nothing sounds like it, Great job Steve Morris Engines
Agree. I love the deep tone of a well built BBF. Such a unique tone. I used to be able to ID one at the strip just from the sound. Now I’m just old! 🤷🤣
DragBoss351Cleveland I watch and love your channel and content also!
@@jerrywaston6842Thank you my friend, I appreciate it. More on the way, working on carb adjustment video series. Stay Tuned
The plate creates what is called the Coanda effect and the air filter creates diffusion thus making the fuel vaporize more (droplet break up) making the fuel burn better.
And it is still running a distributor. LETS GOOOOOO!!
I love to see you working on the NA stuff! It's so awesome hearing you talk about the old cup engines and pro stock stuff, because it was a time of innovation and finesse in engineering.
Thank the lord for the big block ford!
Gold!!!
The intake on that big boy is a piece of art
Love the new intro, BBF’s and truck pulls. Triple win❤ Thanks Steve for another awesome video!!
The filter gives a better signal to the carb, and its enrichening the mixture just the right amount, or somehow the restriction helps lol. Or a combo of all three or just two. Enjoyed the vid
I do like you work. That is 1 fine quality Ford. I like that you will work with all manufacturers. Keep up that great work.
I believe the reversion that comes all the way out of the carburetor hits the air cleaner lid and helps with pulse wave tuning, just like header length matters. It picked up throughout the whole curve. But what do I know
Beautiful engine and the sound...!
You definitely nailed the cam profile....
Right?!
Thank you. The filter straightens the air going in.
Awesome sounding ford
The air filter with a well designed base plate is shaping the air allowing smooth transition into the carb.
Maybe the filter is acting almost like a choke, causing it to use a touch more fuel? I wonder if that would show up in the air fuel ratio data log
Weeeeeeell someone applied their master's degree in fluid dynamics appropriately !!! Great job to whom ever designed the initial blueprint and air inlet carb set up etc. I'm sure tuning has a little to do with its success but the design and initial blueprint got you there so credit is definitely due there !
That big block looks clean - almost simple. Nice stuff.
All the changes improve the air turbulence and the fuel mixes better, which increases the burning speed
That ford sounds AMAZING!
Don't they all, nothing sounds better than an old foxbody 5.0 with exhaust
@@turbo-jm8hk- Meh. Only to 80’s guys.
They always do!
@@turbo-jm8hk A Cleveland sounds better than the little 5.0 😉
Ive actually read some awesome studies about this very thing back in the day. Theres been tons of research done about the effects different filters have on the fuel delivery/atomization through carburetors. Its amazing how different filters, spacers, and of course intakes effect atomization of fuel. You can adjust a spray nozzle into a perfect mist, but when you spray it into a fan on high, everything changes. Sorry to ramble, just a very interesting subject i dove into years ago while dirt track racing. Every little bit counted when it came down to the stringent rules given for the class i ran.
A good filter will actually help power by improving the atomization of fuel delivered by the carb. A nice clean burn is good for power. That can be achieved by stopping turbulent air and cleaning up the delivery. Lots more goes into this, but thats a very quick amd dirty synopses.
It straightens out the air flow to curve down in there because of the base plate of the air filter housing
more than likely forces the air to come down straighter ,reduce turbulence over the radius, changing approach angle entry into cab bleeds/boosters!
Steve you have to be the most down to earth man. You seem like my brother or best friend the way you teach us about your engines, which are more superior then them all. I love your channel please keep the videos coming. Thanks for sharing and God bless you and your family and friends.
The inlet manifold may be a little excessive for the application, and once the filter is applied, it creates a better Venturi effect, causing the power to be increased
It stabilized the air atomizing the fuel better
The air filter is a vary small restriction witch causes laminar airflow.The venturies respond with better atomization and distribution increasing horsepower. Nice build !
I believe having just the base on would be creating a better path for air into the carburetor. Then adding filter could make the air entering more uniform and can syphon the fuel better. It might also help how the fuel is mixed into the air for better distribution to the cylinders . I wonder if the EGT temps were more even with the filter. Great stuff .Thanks for sharing.
🤔
love the dyno pulls! But I would like to see/hear the pull from outside the building. Yeah, where the exhaust goes out. Bet it sounds awesome! Just my weirdness coming out.😆
Awesome Thanks for Another great Lesson professor Morris!! Thanks for sharing, Also love seeing sugar Momma in the intro !!! Great Channel Keep up the Amazing Work !!!!
Thanks
Steve do have v12 they 300zx init
The base improves because of the rounded edge, the filter improves it because the restriction lowers afr slightly, meaning carb could be richened up a bit maybe. Ive had it happen with my motorcycles 🤷♂️
That big block sounds crisp... 👍🏻
Glad to hear the SMX is still sweet🙏🏻💪🏻👍🏻
With limited air intake (one carburetor) you get very high speed air which can cause some "stand off" and air disturbance above the carburetor. I think the cover over the top of the air filter and the quality filter are helping "smooth" the air flow which is giving a more consistent signal to the boosters in the carburetor.
With the filters put on top of the base it has more fuel in areas in the RPM sweep. Because decreasing the amount of air getting into the engine.
Much like we used to do in the early to mid 90s to improve ait flow for maf engined, rather smoothing air flow when going from say a 65 mm throttle body to a 90mm unit. The air becomes extremely turbulent causing a power production issue. Was magnified with boost
We would put chicken mesh before the maf which stabilized the air flow into the maf causing power protection to be more tunable and resulted in more power. The carb on that motor has a massive choke hole causing turbulent air. The mesh from the filter smooths the air flow causing stable tuning resulting in more power production. Or in your case allowing the tune to be stable and the engine to utilize all of what your feeding it
That thing just sings beautifully through the entire rpm range.
K&N had those carb velocity adapters, back in the day, for carbs with and without a choke. I tried one and definitely helped my car run smoother while cruising.
It's just like the Bell on the front of your turbo
The filter acts as a intake resonator which helps with intake pulse harmonics. Mazda does something similar with their gen 2 skyactic engines with a large internal volume intake everything, but then chokes the very front snorkel.Think flywheel but for your intake air. Thats my guess.
You can test by mathing out the intake runner harmonic orders, then pay attention to those RPM ranges for performance. The white line on the graph you showed displayed better peaks at certain RPM ranges. Try different shape/size air filters and pay attention to those peaks.
While driving near Quincy Illinois I saw a Steve Morris wagon pulling a Live stock trailer , laughed my arse off
Hi Steve , Interesting that you got more power with the filter on, I have the same experience with bike engines, best I can figure it out is that the filter straightens the airflow and takes out the turbulence in the airflow cleaning up the signal for the carb and the base stops opposing airflow from the bottom confusing everything !!
That in a lightweight ford with a liberty 5 speed shifting at 9k would be a bad ass combo. 👍🏻
In a badass galaxy with carbon bits... yeah.
nah everything you said in a small tire(28.10.5 tire)maverick. That little sucker would rock😂
That motor would think an F500 is a lightweight ! Lol!
When I've run into the more HP from a air filter, it was because the 4 outer cylinders were running slightly lean and the inner 4 were rich, but the overall mixture was good. That is taken care of in a dual carb engine, but not in a single carb one. Port or direct injection usually doesn't have this issue except to a minor degree.
The only way to tell for sure is to have 8 O2 or 8 EGT sensors installed.
Same thing I was thinking makes sense
Is that the new EZ access Roadmaster wagon? I know you want to go faster but, the weight reduction has to stop somewhere! 😂
Concerning the filter question, it will depend on the size of the main fuel intake jet. The tuning could require a filter with a larger air flow than a regular filter, and if the jet is bigger, sometimes you will get the opposite results more power with less air flow restrictions 😊
Engine masters tested different attachments on the carburetor and the salad bowl shape made the most power, by a good bit if I remember correctly. Does anyone else remember better than I do?
Thats what I was going to say, test the salad bowl! The flipped lid did suprisingly well too
The filter is changing the signal over the Venturi in the carburetor and is allowing it to work more as designed.
Maybe by putting the filter on it creates more vacuum at the mouth of the carb and cfm goes up. Just a thought
Watch how much the filter "sucks in" when under load. I'd be little concerned about the filter getting sucked thru the carb when it implodes.
I’d be interested to know if it’s possible to do is put a vacuum gauge on the hat with the filter just for curiosity
I reckon the filter smooths the airflow out, giving it a better velocity through the carb.
It's a ford it's just badass
First On Race Day baby.
😁👊🏻
@@stevemorrisracingwat kind you look foor car
@@stevemorrisracing Do you know what truck its in so we can whatch?
filter raises the peak flow point to half way up the filter for better inflow. you can see the sand fabric pull in deeper concave at the mid height point on the filter... higher flow velocity as air is detached from the plate.
Dewey must be on vacation. 😃
I think the radius base helps increase air speed/decrease turbulence into the carb, when the filter is on it increases the flow by forcing air to come across the radius more so than coming from all directions.
The wagon looks like it is trying to identify as Leroy lol
Steve going cart mode while Leroy gets a body lmao. What is going on?!?1
Stated in other comments also, buy my idea is that w/ no filter, the area an inch or so above the venturi's is very turbulent and the filter prevents the air from getting 'dirty' just before it is pulled in the carb.
The restriction can easily affect the atomization of the fuel. A little restriction isn’t always bad with carburetors.
Like others, I believe there may be air vortices when run w/o the base, and the base smoothes out the flow and then the filter adds more favorable smooth air flow.
Air speed, a restrictive component can speed up the average airspeed and that added airspeed above the valves can match up with the resonance of the long tube intake runners.
My guess is that the filter smooths and aligns the airflow, acting as a bit of a buffer to changes in air flow around the engine. Very neat though.
The filter smooths out the airflow.
With the filter and cap, the air is forced to come in a more smoother flow. Like a river where it necks down, the water speed up.
Without the filter the air just flows in how ever it wants AKA shotgun effect.
I would like to see what would happen if you doubled the air filter hight and see what happens.
Another great video, and yes I learn something on each video. Be blessed brother
A property called “laminar flow” is what makes the filter work… the air in the cel is turbulent and the filter in affect diffuses that turbulence increasing cfm through the induction system… A good and properly sized filter with a well designed base/lid combination will always flow more than just a bellmouth… I’ve proved this many times on my flowbench.
Engines are basically air pumps. They pull in air on one end and push it out the other. The base of the carburetor and the filter itself are helping to stabilize the airflow going into the intake. You must always account for the the CFM of air the engine ingests while tuning any engine. Unrestricted, the engine is pulling in too much air and is leaning out the fuel air mixture leading to the drop in power.
I believe adding the filter causes a vacuum on the intake side of the carburetor, increasing the ventury effect and pulling more fuel from the jets.
Thank you are right, made it run richer
Awesome... N cool to watch the views go up as I'm watching the show... It's climbing
Kinda what I’ve learned just messing with dirt bikes. With a filter it creates a little more of a vacuum effect in the carb pulling more fuel volume through the jets. Also smoothing the pulse creating a more consistent flow for the venturis to work. As long as the filter isn’t restricting the amount of air needed to match the fuel it usually picks up power.
As long as the filter is large enough to not be restrictive, it helps to straighten and smooth the airflow into the carburetor. It creates less turbulence at the inlet. The base helped some, but the majority of it is from the filter. If the base was raised, you’d see a difference that way as well.
That thing sounds better than 1500 hp the way it revs like a small block and the urgency it puts down when accelerating...very solid build and very well thought out.
BTW, I agree with you, flow dynamis is at play... a free flow filter with a good radius base and lid smooths the air flow and relieves small vortices. In the old days we double stacked air filters on the radiused base and lid of 14" moroso air cleaners and it definitely smooths out the tourque curve and you can see it on the lambda a/f and egts when dynoing. It was repeatable results on most carbed deals. Talkin old school, the trusty "901" didn't lie, forgive or misinform. Air cleaners work and especially going down the track. You don't want a scoop blowing 150mph turbulent air across the top of a carb. You want precise metering and no leaning out at high engine speed especially. Great chanel Steve❤ God bless you and the family buddy🙏.stay safe.
Started the stream with a dyno pull and my sound at full volume in my headphones. Thank You Steve!
The air is coming in with less turbulence due to the direction of flow caused by the filter base and filter. This is resulting in better fuel atomization passing the venturis and probably even resulting in slightly more air into the cylinders. Without the base and filter the air would have been rushing into the vacuum above the carburetor from above, sideways and below causing the air to swirl around above the carb. If I could draw a picture, it would explain it better, but I think you get my point. Nice build, I like it!
Hey Steve,
Tim here, i think the filter straightens out the air, less turbulence, over the air bleeds, AND booster, hos base sure is nice......my secong thought it gained b'cuz the carb is a smidge to big, , but for what he's wantin to do, a 50 or 100 cfm less carb, with the filter mite kill it......the combo HAS to work in harmony!!!.......those are my thoughts.......LOVE ur channel, and i darn my SME t-shirts at work, twice a week!!!....PEACE to you sir!!
I had a 2bbl claimer engine that picked up 3 when I stacked a cpl of air cleaners on it. And another one with a proper tall filter. My theory was that the tall filter provided enough air to not be a restriction but cleaned up the turbulence into the carb.
Really happy to see you willing to work on some N/A stuff.
I believe it's because without the filter the air flow is entering the engine at a wider base where with the filter it's channeling the air from the top drawing it directly into the intake therefore creating more horsepower. All in all it's more of a direct air flow. With the air cleaner cover on it creates the engine to have to draw are rather than just sucking air without.
Can’t wait to see that on the track hopefully I might get to film it this summer depending on who they pull with