Testing 4 Common Engine Building Myths: Which Ones Are True? - Engine Power S8, E6 

Budget means under 5k

Budget mean old heads from 60s 70s not 5k heads from 2000s

​@@stevesalkas9128 i agree to a certain extent on that....except it's probably less expensive to buy the new heads than refurbish the old ones.

Poors "why are decent parts and equipment expensive" Just keep running those clapped out 350s and keep it moving.

​@@zztop7306shoot man, you mention 350s. I'm building 351 clevelands for my stuff and the price for just a pair of decent heads would just about cover a whole sbc overhaul including machine work and a decent stroker kit. I'm only a poor because I'm not rebuilding a clapped out 350.

Haha yup, I'd chill on the weekend mornings watching all the wrenching shows back then before going to play in the garage. I guess it was like a grown-up version of sitting around the tube watching Warner Bros as a kid😁

I've been watching these shows for about the same length of time as well

I started watching these shows when Joe Elmore and another guy I can't remember were on - he sort of looked Hawaiian. Before that I watched Shade Tree Mechanic on Saturday and Sunday mornings. I'm glade they are on RU-vid because since they aren't on Spike / Paramount anymore they are hard to find on TV.

@@scottyV1000 the other guy who cohosted with Joe Elmore was Chuck Hansen

@@karlsmith2570 yup, that’s him. He was the “Chevy” guy and liked station wagon grocery getters.

I noticed that on this video also.

Acting..

😅😂🤣

Maybe it's a compromise for other areas??.... 🤷🏻

I agree. I ran my 78 Camaro like that.

I'm honestly surprised they didn't. Engine Masters did.

@@hualni you must be watching engine masters on something other then RU-vid.

@@genwatie2191 It was on RU-vid back a while. But now I watch it on the Motortrend app. It cost me less than $1/ month.

@@hualni this one is free so...

Not true with every type of engine, I've seen some that tighten up when it's brought up to temp and some that loosen, pushrod material comes into play there.

@@dukecraig2402 exactly, and the pushrod becomes nearly the same temp as the block so it depends on the material. but the exhaust valve gets really hot so it expands extremly more then the rest and normaly gets tighter

@@K4TORG412 Yep, I've seen some tighten up and some get looser in the same engine all depending on the pushrod material.

@@dukecraig2402 ahh pushrods, how quaint :-)

It depends on which expands more, the block and head, or the pushrod.

I think engine masters does that test.

Also, if any change with the A/F ratio.

I think they did an air filter test on an old episode with mike and pat

I took an air cleaner lid and put a fitting in it and ran a vacuum line to a gauge in the car. Tried a bunch of different filter elements including foam and oil, dry paper and KN. Amazingly there really wasn’t of a difference.

I always added a vacuum gauge hooked to the intake manifold under my dash in my hot rods. Used one under the hood for tuning too! They can tell you a lot about how your engine is running

How could you possibly have “no idea”? You honestly thought that a ridiculously small air filter wouldn’t kill horsepower?? Get ready to have your mind blown again… An undersized fuel filter also hurts horsepower!

@@gregg7761 well I don't think anyone expected it to have a 80hp impact

@@gregg7761 No need to be a sarcastic ass clown Gregg. Not everyone is a master mechanic like you.

​@@gregg7761then why are you even here? You know it all clown.

Just remember an engine is just an Air pump and anything that improves it's ability to move more air gives it more horsepower and torque.

i agree,sadly this isnt exciting on the dyno

My question is why they're pulling it 500rpms past peak horsepower.. just making noise and wear and tear at that point.. and the way it rolls over so fast, I would say its valve train isn't happy

Lol

That’s the way I was taught….

My buddy Superman does my adjustments--in fact he can do a couple engines at the same time.

I Kno what you mean...I changed my fan belt and I tell ya it's like some kind of machine in there all them parts moving around in there 😂

easy,cool air works,flow through lids in an enclosed engine compartment do not.open element air cleaners don't work well in an enclosed,hot engine compartment either........good enclosed air cleaner housing,free flow air filter and dual inlets sucking cold air #1.....theres a reason ram air works

@Derek Young yeah.. but 13 hp increase on stock heads.. that's great. 65F drop.. that's a good deal

If this was more of a build show.. maybe team up with one of the other shows.. team up and build a real cold air / ram air intake. Weld together a sheet metal filter housing, ducts off that, tubing to firewall.. etc.

Agreed. That ram air should be nearly same as the open filters sucking in air super heated by cheap ass non coated headers lol

Yup, run a salad bowl everyone!

@@docsmallblock6584 KEGALODON

Engine Masters did it better....lol

Sarcastic. Stock motors and parts can make just as much power and torque as white motors. - Joe Biden, probably.

@@starcloakstarside9719 you know it brother! My Magpul, comp cams, and let's go Brandon stickers are worth at least 5hp each too!

Positive rotational mass, with the kinetic energy working to help the engine recover after gear changes. Not all rotation mass is your enemy.

it depends on the build you have and precisely what accessories you have on there. it gets real complex real quick.

it can get crazy that's one of the scary ones.

Would be good test, but main question is what does the weight and the drag of the pulley cost you. Cause in the 5 % of the time your going hard, full throttle, wrapping the tach to top of power curve..id assume air is off both for power and because the compressor is coming apart if not.

Power Nation? Cats? HAHA

No cats

People who build motors like that do not use cats. Ever.

I melted the front of a cheap cat a little bit. Too much exhaust heat from running rich

High quality CAT has little effect on H.P. numbers. Mufflers and full exhaust pipe have much, much larger effect.

High capacity pockets.

Why?

@@Larcona_ he's just a kid , he might be pretty savvy but only time will bring the speed that comes with experience. I've trained a few new guys at my job , and I can do a typical service in an hour , maybe 1:15. After a week of them being on their own ,they come up and say holy crap it's taking me 1:30 or more you're good !! Settle down little fella, the speed will come with time. Don't go for speed , ask yourself if the olady likes when you finish fast 😝

I was looking for this.

@@MrTheHillfolk So after one week they're around 15 minutes off your time, not a huge difference. Also age and experience aren't necessarily correlative. Oh and your example is just being accustomed to a specific routine, which isn't all that important when it comes to building custom engines.

I like the little quizzes Pat gives the kid most weeks. He's doing pretty good too.

Pat used to teach at an engine building school, students there were horrible about not having the correct writing utensils with them.

He's got a couple pens and a pencil, maybe a marker in there, everything else are pocket tools

@YOYO MA Bwahahahahah!

PPP Pocket Protector Pat BOOM

That's his mechanic ranking system. He's basically a five star general LOL

Yep and with a shroud drawing air through radiator = death to horsepower

Worth 30hp with a fixed, factory style 6 blade fan

It is pretty straightforward to estimate alternator losses. Measure current draw of all accessories needed to run the engine, measure voltage and multiply to get Watts. Add 20% in order to account for electrical losses, some small amount for alt fan windage and belt / bearing losses then divide by 745 to get HP ( One hp is 745 Watts ) Now, there are intermittent loads like recharging the battery after cranking but this can go away after the engine has run for a while.

Alternator draw on engine power will be different on smaller engines. In my experience a good high performance alternator made for racing usually takes less than 1hp draw in V8 engines. Too much displacement for that little pulley to make a difference even with full accessories.

@@bobroberts2371 or in other words, 51A @ 14.4V takes 1hp to drive

Contrary. With the exception of the stock air cleaner, these are all “cold-air intakes.” I recon you’re talking about an autoparts store universal off-the-shelf part designed for a modern MAFS EFI motor, and to that I’d say don’t bother. It will throw off your Mass Air Flow Sensor and mess with your Air:Fuel ratio due to the lower restriction. Elaboration. Might even be enough to lean out your motor and contribute to lower fuel economy and lower power. Even if you’re talking about a carbureted motor, an open element filter is probably going to be cheaper. I think I’ve got a Mr. Gasket open element filter that cost me $14 compared to the $40-$60 that the EFI-style ones will run you. Conclusive. So unless you want to spend that plus $500 for a shop to reprogram your car or $1,500 for the equipment to do it yourself, it’s not going to be worth it. And even if Power Nation did do an episode on those things, it would probably do more harm than good over all.

@@starcloakstarside9719 Unless the car is being run without a hood, those are not cold air intakes.

He's a smart......smart guy

you're halfway there--the Ford ran smaller valves and ports than a Chevy. The 351 W will do better because in theory, its taller deck makes for longer intake runners, and that helps over a 347 stroker. Go check your local boneyard for the last year Explorer to get a 302 pushrod--it has the GT40P heads, best things to ever come on a Windsor. The spark plug angles will require their own headers, a Fox Body Mustang stock equipment won't fit. don't bother with the Mustang EFI intake either--its a nice design, but its size means it soaks up heat with all that surface area. If you REALLY wanna get crazy, know that the Boss 302 ran longer connecting rods--from the 289. But not everyone jumps on the "long connecting rod" bandwagon. pick a header length you can live with (depending upon body lift, etc) and call the cam companies for what they recommend. If accessories robbing power bothers you, the ford contour had a great set of electric fans--you can look online anywhere for the swap of these junkyard (ie, cheaper than aftermarket) parts.

They aren't interested in old outdated non performance vehicles that few people own anymore. Broncos have all but disappeared from the roads. If you can't swap a larger junkyard engine for almost nothing chances are you can't do much else...

Jesus, don't listen to either of these dopes. Start with gears and then work your way down from the top of the carburetor. 4.10's will wake that ol' girl up!

That about runner length and cam, it's never going to be great with 5.0 Ford because of the 3" stroke. With your limitation a procharger would give you the simplest big results any form of boost really would give you what you are after and then some.

@@ryanroberts1104 you do realize that theres tens of thousands of 80’s to late 90’s Ford trucks on the road, right? And the Torque would also work for any truck. Weather 2 or 4 wheel drive. So my question is extremely relevant to whats currently on the road. And trails.

Changing the air flow also changes the pressure differential in the venturini. More air is faster air and lower pressure and more suck and more fuel.

Just stop messing about and use fuel injection.

..then add a power steering pump.

The accessory test alone could have been a mini show....use oversized pullies, run an electric fan draw on that battery, a serpentine belt with idler pulley adding drag, et cetera.

Boomer

I agree. That narrator sumbitch keeps breaking through in spots. Annoying as a rod-knock. *We're only here for the robo-cheesy adrenyline junkie moosic, right?* Drama queens in shop aprons. 😶

@@illililililillli ' cough

We don’t want a show we are trying to obtain information not go to a concert you’re making enough money for these pods so keep it simple for us knuckle draggers ! Too bad you don’t do the actual work to these engines otherwise you’d have some grease under your manicured fingernails! Hollywood Boys

@@donaldfrazier5244 I guess I'm a Boomer geezer too. I don't need all that damn drum beating to pound information into my head.

Kinda like they did around the 20 minute mark?

I totally agree

The Turbo should win every time. A Supercharger requires a bunch of HP just to drive it. The Turbo with the exception of some exhaust restriction is basically free HP.

A/C only drags when the compressor is engaged. Otherwise it's an idler pulley. On modern cars power steering is moot given its generally not hydraulic. But I can see it drawing a good chunk to push the fluid on a pump style system. Hydraulic fluid ain't water that's for sure.

are they still around?

The fact they seemed to ether not know or pretend to not know how pre throttle vacuum effects power I’d say engine masters aren’t to worried

I knew if I scrolled thru the comments I would find a comment about ripping off engine masters lol.

@Satchel McQueen Video yeah...its all about the Money now..used to be free

@@carbonfiber492 lol

I saw that too

@@thelol1759 at least I'm not the only one.

washer

same

I agree.

If it spins the accessory at the same rpm and the accessory has the same load it will pull the same power.

But they didn't try the salad bowl Engine masters found a few ponies hidden in that trick

I guess they thought it was best, for some odd reason, to make fun of them since they essentially (poorly) copied some of EM's past episodes. These dudes will never compete with EM, lol 🤣

Exactly, in the days of V belts on car engines you could get in a car on a frosty morning and after you start it up turn on the rear window defogger and listen to the belt start squealing, shut it off and it quits. Just charging a battery isn't proof on that test, they needed to load the system like it would be with the headlights, rear defogger and wipers on, then see what happens.

@@dukecraig2402 I am now dumber from reading this.

@@timothydillon6421 Why exactly is that? What part don't you get?

@@dukecraig2402 you can draw hundreds of amps from a battery or even 1000 but the alternator only charges it at 75 to 100. A dead battery will certainly max out the draw on an alternator.

@@timothydillon6421 What makes you think the battle is dead?

still pretty easy to figure out a solid approx number. lets say the alt outputs 100A at 14.4 so 1440 watts/745=1.93hp. just an approx peak number but close enough.

@@mpugne its not about the result its about the test condition

@@chrismorton9736 which max current rating should they have used? idle, 2000rpm (what most stock replacements use for rating), or red line which will be the highest. in the end you are still going to be within the error factor of the dyno its self.

Exactly what I thought. No parasitic load. Cummins on all of their electronic engine control the charging system. It has to see oil pressure before it will energize the field circuit. I have seen mechanical diesel engine stall out when starting in cold temperatures. They go to full field until the regulator can pull back. On a 300 Amp alternator that's a lot of umph! At one time a 65 Amp alternator was huge. Then the Asian market came out with 120 amp.

@@mpugne Standard alternator is only about 55-60% efficient.

Mike?

@@Carlos.Rivera that's his name. I thought it was Gilbert.

Mike Galley. No clue. But LT (Lawrence Tollman) has also left but has a growing following on his RU-vid channel.

Once Tommy leaves it will become completely unwatchable.

Yep except you don't have to pay to watch the full episodes

Well I won’t say they ripped them off. Maybe a different check. I mean I m not go of one resource.

Oh and engine masters is basically a rip off of engine power. Engine Power has been on a lot longer then engine masters.

@@genwatie2191 Not really. Engine Masters is full dyno testing. Really if you want to get into it, Engine Power is a rip off of Hot Rod.

@@genwatie2191 not accurate, engine masters has been around for a long time, it was a magazine as well as a builders challenge long before the motor trend show, as well as saying these guys dont rip off of motor trend is a joke. I mean the show carcuss is a direct rip off of roadkill, then all their little "extras" didnt start until roadkill extra, dirt everyday extra, etc.

750 watts equals one hp

But you have to pay to watch EM.

@@karlx-1 Exactly