HOW MUCH POWER DO ACCESSORIES ROB FROM YOUR 4.8L LS MOTOR? STOCK ACCESSORIES v ELECTRIC WATER PUMP!

[@jeremiahsr1984]

Kills me to see all the "now run it this way" comments. Richard works his ass off and does tons of research and tests and people still cry. You all do it then.

[@Scott_Buchanan]

Exactly! Edit: there’s no telling how much someone would have to spend on dyno time to get all of the information that he puts out.

[@beeasy4360]

Right is poor guys are thankful for anything I would never get this info without Richard ahard work that’s a fact

[@simonhardgrave4568]

Guys super under appreciated. Answers emails without expectations and give legit information. When I finish my build I'm going to send him some money so he can go on date night on me as a thanks for all the emails from me he's replied to helping out.

[@OdinForce4]

The fact we actually got to see you do all that work makes me appreciate the video even more! Much respect for your videos!!

[@richardholdener1727]

I appreciate that! It's always me swapping parts and making runs.

[@91CavGT5]

20 or so years ago there was a local dyno day. A buddy put his late 90’s Cavalier on the dyno for fun, and his air conditioner was turned on. For some reason, the compressor did not turn off at full throttle and high RPM. So he ran the car again, but with the air conditioning turned off. His car gained 8 hp, which was like a 10% improvement!! 😅

[@sekouchill]

No lie you can feel the difference when you race with ac in all 3 of my cars 330, c6 vette, and 2016 x5

[@krisjones1286]

Those water pump pulleys always make the best dinner bell 😂

[@richardholdener1727]

ding

[@GMGUY1000]

I use them for plinking.🤓

[@cam3002]

Thanks for doing this test, actually freed up more HP than I was guessing. Keep up the good work.

[@jtdyalEngineer]

This is another amazing video and test thank you so much. Adding a light load (~600w) on the alternator (for lights and fans) + the resistance the PS pump would need to overcome, that ~20hp + another 5 hp is over 6% 😮

[@TEAMWRIGHTEOUS]

I'll tell you what you need do test... A Patreon account. To pay for your time and energy you put into all of these test. Then you'll get paid for going back and adding a clutch fan and electric fans and whatever everyone else is willing to pay you to test. You give so much to the engine community. And test almost everything possible. Your efforts are always appreciated, and your videos are even watched by me and other motorcycle guys. 💪

[@richardholdener1727]

good idea

[@TEAMWRIGHTEOUS]

@@richardholdener1727 I got to be good for something... 🤣🤣

[@nathanshobe]

Such a great test Richard. I love the tongue in cheek nature of the "real world" complainers. That said, I've seen some testing from people, but would always love to see more, comparing the electrical load an electric water pump puts on your engine versus the mechanical load of a mechanical pump (ie: leave the alternator on, and configure your electric water pump to be supplied from the alternator). While many drag cars will operate exactly as this test, relying on a battery to provide the "horsepower" storage for the water pump, it would still be nice to see. My experience tells me that mechanical pumps are extremely efficient, and that most of the power they use is going to be directly applied to pumping loads, and those same loads would exist with an electric pump flowing the same amount of water. This means that in practice an electric pump might not save you any "real world" horsepower, but there are other huge benefits many might overlook, such as being able to disable the pump entirely for short bursts of WOT if you wanted, running the pump at 100% when the engine is off (allowing rapid cool-downs), as well as the benefits of running the pump at lower duty cycle when driving on the street instead of "wasting" energy of a pump pushing against a thermostat to regulate temperature. I think there's good reasons OEMs are playing with electric water pumps, but I'm also not certain it's about all-out power.

[@richardholdener1727]

the mech water pump would require much more power to drive

[@nathanshobe]

@@richardholdener1727 On what basis though? Where is the energy loss do you think? The pulley itself doesn't use hardly any power and is natively low friction. Unless the pump side impeller is different between the two, I don't see where the mechanical pump is at a serious disadvantage. Similarly, I've seen cases where people struggled with overheating with electric pumps as they realize they don't flow what their OEM mechanical pump did, which is another area that can be easy to overlook. If the mechanical pump takes 2x the power to drive at X rpm, it might be flowing 2x the volume. I know an electric motor is more efficient than any cost of fuel, but I'm not talking about that end, because we also have to generate and store electricity somehow. I'm merely discussing what the motor is driving and how that energy is delivered to it.

[@beardedforlife3740]

​@@nathanshobea high flow electric water pump from meziere at most uses 12A at any given time. If my calculations are correct then the load required to power it is equivalent to about .20hp. A mechanical pump on the other hand at higher rpm uses about 8hp for the same amount of flow. Now not only do you have the benefit of turning an EWP on and off whenever you want, it's also not rpm limited like a mechanical water pump. Also the service life isn't much different for an EWP than a mechanical pump

[@richardholdener1727]

Impeller design is different between the two pumps, also the efficiency of the mech pump changes with rpm-the Meziere run a constant rpm

[@blitzerman8]

I LOVE the NA 4.8L videos because I study them for my 2.4L 4-banger engine. To see only 19hp lost on accessories gets me really excited since I'll have all of mine on my car. Thank you for the awesome info, Richard!

[@TK-eg7eg]

Very good way to sum it up at the end. Thanks Richard!!

[@bdugle1]

Lots of info here, thanks Richard! My mental guess was 7 hp when you described the test, so I was very surprised by nearly 20. The E85 results were another surprise. Very interesting!

[@bobroberts2371]

Some other considerations. The type of dyno used for testing matters. A loading dyno ( like a water brake , eddy current ) will measure the change in parasitic torque loss. An acceleration dyno ( like a drum Dynojet ) will show gains when rotating inertia is removed. In other words, a loading dyno measures actual torque then calculates HP. An acceleration measures HP ( work over time ) then back calculates torque. Some loading dynos have synthetic inertia measurement so this could help depending on the application. Reduced inertia will help acceleration however it will do nothing for pulling a trailer up a hill.

[@averyalexander2303]

Great points, but I suspect most of the people watching these videos are looking for acceleration gains in performance/racing applications where the inertial losses are a big factor, especially in the lower gears where the rate of RPM increase is higher. In a heavy duty towing application, an electric water pump and possibly electric fan most likely won't cool the engine adequately whether someone wants to use them or not. Running at full power for 10-15 seconds at a time in drag racing or street pulls at high speeds (lots of ram air) is VERY different than working an engine hard for minutes at a time climbing at low speeds (not much ram air) in the towing scenario you described.

[@lazylizard6532]

is the dyno in this video a water brake? I think he talked about the fluid heating up after consecutive runs on another video, but it also seems an acceleration dyno would show results more relevent to his content. Might just be a case of run what ya brung.

[@ryanb6658]

Nobody cares

[@bobroberts2371]

@@ryanb6658 Don't blame me for you not understanding ( or wanting to understand ) basic physics. How about you go back to watching Scotty Kilmer / B is for Build / Gas Monkey or C McF. . %$#@% . . K ?

[@FieroWannaBe]

The superflow uses both methods to calculate torque.

[@rickross9661]

These armchair guys give me a migraine, I don’t know how you put up with it 😂 Love the content, Richard

[@Shogoat1304]

Some guys probably will say “aargh you gotta have load on the alt for it to have a effect, not a good test “ 😂😂😂 Love the good work Richard !

[@bluehills38]

RH your just totally awesome my friend 👍 Glad people like you have the ability to do the leg work needed to give us real time data ❤❤❤

[@tptrsn]

Great stuff Richard, thanks for adding some facts to the conversation so we can speculate a bit less. Much appreciated!!

[@VcArena]

Ive only got the waterpump to the crank and idler on my 6.0. Oh and alternator. Interested in a ectric water pump but its a daily

[@ZONES89RS]

Edelbrock 2215 cam(220/220a.050 .510/.510 111 LSA(I think)) Made 312 rwhp and 308 torque on a chassis dyno. 650 carb, T56, 8.8 diff, mid length headers with Y pipe. I was surprised as it did as good as some 5.7 liter gen 1 SBC I’ve thrown together except the SBC made 30-40 more ftlbs.

[@doolallyproductions7234]

The A/C is just a regular pulley when its not turned on

[@ShayetonKnake]

This is the stuff I enjoy seeing!

[@davidbailey1721]

I’m digging the 60s Batman style zoom and tilt shots.

[@richardholdener1727]

bang, bonk, zoom

[@BadLuckGarage]

Another great and informative video Richard, but I do have a small issue with it. I know you briefly touched on it and said “take it for what it’s worth”, but that alternator is going to consume quite a bit more power depending on who much load it’s under. I remember seeing a dyno test in a magazine years ago (may have even been you that did it) where they were trying to determine if an electric cooling fan actually freed up more power than a clutch fan and the result was that when the fan was on the extra load from the alternator caused almost the same power loss as the physical drag of an engaged factory clutch fan on a small block Chevy. I’m not trying to discredit your work at all, but I think you missed an opportunity here. Im betting if you would have put that alternator and PS pump under load you would have seen an even more dramatic loss….possibly 30+hp rather than the 19hp you experienced. In the end it really doesn’t matter much BUT it would have been some good stuff to know for the detail junkies. Lol.

[@richardholdener1727]

maybe an alternator test is necessary-but thanks for any tests never being enough

[@BadLuckGarage]

@@richardholdener1727 Yea there’s always gonna be another stone to turn over. Lol

[@boblogIIIfan]

​@@richardholdener1727you never know.. could free up horsepower if driving around in the dark with no lights on compared to them on haha. Im sure more alt use equals more drag

[@Sleeperdude]

Good information thanks for sharing

[@hechtspeed]

Im glad you did this! When you did the blower test...i was like damn...he shoulda shown us what the accesories cost in hp. And here ya go! Love it. Honestly more hp than i would have figured. These are great numbers. I went to electric pump and electric steering rack on my 3v 05gt track car. Great info!

[@dannytravis7118]

Personally I always figured that an engine from the dyno put in an engine bay would about 100 to 150 hp to the ground. In my speculation that 4.8 that made 404 to the engine dyno would really be worth about 275 ish in a car to the ground.

[@richardholdener1727]

in a manual trans car the whp would be over 300 hp

[@3800S1]

That's more than I expected, I was guessing more around the 12-15hp, not basically 20hp and it will be more for engines at higher rpm than they were designed for. What would be interesting to test is underdrive pulleys. They boast less losses, but the main reason you'd want one is on engines with a significant rpm increase is safety for the accessories. I have seen what happens when alternators explode and ruin a rare car's bonnet that you can't find replacements for and even on stock cars that you flog all the time up at the red line, the PS often overheat the fluid and spill over.

[@davidroberts6594]

Would like to see what the engine driven fan at full lock up draws. I can feel it sucking power big time when it's working in the summer heat.

[@r3d1911]

Convert to modern 1990's tech and convert to a electric fan. then there's no draw on the system from a ancient grandpa era mech fan... Seriously your still using a mech fan? Seriously? 😂😂😂😂😂😂😂😂😂 dear God

[@C6Z_Bob]

Wow! I didn't expect that big of a gain.

[@leftcoastdrifter]

Okay Okay Okay but NEXT TIME to make it really really real world can you hook the alternator up to a cheap battery and maybe, say, a working man's 2000W walmart-style amp and sub combination? Then compare music genre to dyno graphs to see which type of music effects horsepower the most over a given RPM? Thanks :)

[@TEAMWRIGHTEOUS]

LMAO 😂

[@daledavies2334]

Class 8 highway trucks on the chassis dyno would drop.25HP when the fan cut in. Now that is a big fan compared to cars and light trucks. This is also why net HP advertising numbers were mandated instead of gross power. Net power is as installed in the car. When the LT1 came out with the Opti spark, in a Corvette they were rated at 300 HP, in a Camaro 275HP and in a Caprice 250HP. The main difference was in the exhaust. Corvette owners expect a bit more noise from a freer flowing exhaust. Caprice buyers expected a very quiet ride, almost like Cadillac.

[@bryanleverett2830]

Fantastic !! Great job Richie !

[@Justls1v8parts]

Be interesting with long runner tbss low down torque.

[@Greaseland]

Wish you threw the clutch fan on just to see. Easy install.

[@richardholdener1727]

hard to keep heated

[@steveyoutube1709]

Great video For a loaded alternator is about 2hp 12v * 100a= 1200watts, 646w/hp. Electric water pump 12v * 20a, about 1/2hp load

[@zacharymorris9917]

Alternators are nowhere near 100% efficient. Closer to 50%.

[@richardholdener1727]

alt load is less than 2 hp

[@DuraSled]

Great testing! I know you like to run the water temps cold but e85 does not like cold water temps in aluminum head LS engines. I have always found e85 makes more power in every stock or mod LS and they like to be at least 195F. With colder water temps, say 165F, hp is noticeably down.

[@bobbywalter5320]

I have seen 12 HP on old Windsor 5.0 fox...so to me it is right on. Thanks 👍

[@richardholdener1727]

12 hp?

[@901cbo8]

Great video have you seen any electronic water pump serpentine kits that don't break the bank??

[@stressrelief5579]

G'day. I'd love to see the Vac U Pan system tested with and without mufflers. I ran a set with mufflers and on the street was great but on the track would blow the dipstick out. Supposedly this was because I ran with mufflers. Could be an interesting test? Cheers. Rhett from Perth, Australia.

[@richardholdener1727]

did you have the valve installed correctly with the slash cut angled properly

[@Bamabrute85]

I would like to see this same test but with the alternator still working. I wanna go with electric power steering and an electric water pump on my LS1. I just dont know if its worth the money. And dont really know how much HP I would gain

[@hondatech5000]

Idle sounded pretty good on the nsr tn

[@Saddedude]

Im guessing like 15-20HP gain. 11:30 man im good at this game. Stock exhaust manifolds and cats are probably worth another 20hp.

[@chriswilson8911]

I had a nissan hardbody truck that I was running around in high school. I was always racing everyone and mostly getting beat. One weekend the truck was running hard and was beating cars it shouldn’t . I popped the hood to check and the cooling fan was sitting in the fan shroud. Once I fixed it the truck felt like I was dragging a rock behind it. Dont know how it didn’t run hot but I should have put an electric fan on to get that power back.

[@eliascorteslopez1094]

Yeah, the mechanical fan will rob you of 15 plus horsepower,i took my fan off my 01 Silverado 5.3 and ran strong after I removed it.

[@eliascorteslopez1094]

Also if you can get under drive pulley, that will release another 10

[@guntherdadson5046]

cries in sad 2022 tacoma noises....

[@loundclear9279]

Billet stage 5 ported and polish buckets catch more water lol

[@wudntulike2no32]

An interesting test that I can think of is how much power does an alternator rob at different amperage. Between a larger fuel pump and electric fan 40 amps is not uncommon. How much hp is 10 amps worth vs 50 amps.

[@hough495]

1hp is 746 watts. A 100 amp alternator at 14v would make 1400 watts. So, less than 2hp, in theory.

[@zacharymorris9917]

Alternators are horribly inefficient. 40 amps will consume 1.25+ hp.

[@benbrown2119]

​@@zacharymorris9917 Not all alternators are created equal. For example, the GM C-series are Pulse-Width Modulated, rather than 100% on when charging, or off.

[@zacharymorris9917]

@benbrown2119 all of them are significantly inefficient. The fact that they have to be fan cooled is your first clue. An enormous amount of their output is heat instead of electricity. Plus, they require field excitation that draws a meaningful amount of power.

[@benbrown2119]

@@zacharymorris9917 Well, according to a quick internet search, the average modern automotive alternator is about twice as efficient as the engine its bolted to. At medium speeds (i.e. cruising speed of the car) alternators are 60-70% efficient. The best practical modern engine efficiency number I found was 37% with lower efficiency being the norm in use. So, I'm really not sure why this is your pet peeve. The auto manufacturers have made their alternators as efficient as they could within the bounds of practicality and cost. My point was that early alternators were less efficient than modern ones, and some manufacturers have better designs than others.

[@AlexPerkins252]

But what if I just got rid of the water pump and kept everything else?

[@jeromeadams5692]

I’m done chasing a handful of horsepowers, saving up for boost

[@richboyracecraft]

After boost you’ll continue the search for a handful of horsepowers. 😂 There is no escape my friend.

[@zacharymorris9917]

With the stock crank pulley and alternator pulley, the alternator will come apart before you see 8500. Also, a 5th gen water pump will come apart before by 7500. Ask me how I know.

[@someidiot1984]

How much does a mechanical fan draw for these engines.

[@jeremyparsons2944]

now lock up the clutch and put the fan on(7k rpm may be too much for it :D )

[@mikeday8826]

Yeah 7k rpm is too much for the fan. I learned that the hard way when my water pump and fan self destructed at about 7200 lol

[@TEAMWRIGHTEOUS]

Good to know.... My truck is still all stock, but if I ever built the engine, I know not to turn it up above 6500😁

[@claytonargo3085]

YAY! Shades of short stroke SBC. 283 forever!

[@JoeStill-un9gp]

Richard, Shouldn't there be a simple formula for if you were running AC ?? A very good to know thing for the regular Joe to know? Guesstimation??

[@richardholdener1727]

hp estimate?

[@JoeStill-un9gp]

@@richardholdener1727 yes

[@JoeStill-un9gp]

@@richardholdener1727 approx how much additional hp loss with functioning AC?

[@FernandoSolis-c3k]

Could you do something on 6L80 torque converter failing on Chevrolet does a billet converter make a difference

[@richardholdener1727]

I CAN'T TEST CONVERTERS ON THE ENGINE DYNO

[@FernandoSolis-c3k]

@@richardholdener1727 your pretty awesome Thanks for the videos and sharing and replying back.

[@kenm724]

Thank you for actually making a pull past peak power, even though it only was for about 250 RPM lol Average power matters!

[@jz28h]

So I’m going to electric fans and water pump on my truck in an effort to reclaim parasitic losses that’ll gain me back RW power but also hopefully some MPG.

[@michaelblacktree]

Good stuff! 👍

[@sstevocamaro]

Would hooking a battery up to the alternator while on the dyno cause a charge drag?

[@richardholdener1727]

small

[@zacharymorris9917]

140amp alternator at full output will use a little over 4hp.

[@chriswise1232]

You can buy a carbon pile load tester for less than $100 if you want to vary your load and see how much drag the alt actually imposes.

[@redneckrevolt1]

Awesome video and everyone thinks of this test, but you did it! 😂

[@dannytravis7118]

Just curious. How would you feel about doing this same test again for the 5.3 liter and 6.0 liter engine. I wonder if the bigger engine would have the same amount of difference or if the increased torque of the larger engines would minimize the parasitic losses of the accessories.

[@dataminetk]

the accessories are the same, bolting them onto a bigger motor doesn't change how much power they take to run. as a % of power output it'd be smaller as the bigger engines make more power. but if the (say) p/s pump takes for example 5HP to run on the 4.8 it'll still take the same 5HP to run on a 6.2, or a blown big block or a top fueler. you're just going to notice it less.

[@rustysausage69]

@@dataminetk I would agree personally, im under that same impression that parasitic power is a fixed number rather than percentage. Applying that principle, I think that chassis dyno horsepower compared to flywheel horsepower numbers is a fixed subtraction as well.

[@richardholdener1727]

acc power loss would be the same on all three motors

[@gavinbellis6042]

Air filter? Love the vid though

[@JesseSeg84]

Would the parasitic loss be a smaller % on a boosted motor?

[@richardholdener1727]

smaller percentage because the power output is higher-loss is the same

[@ImNotHereToArgueFacts]

No real world gulf coast a/c?

[@jhutch1470]

I would have also run it with the stock fan for the first run.

[@richardholdener1727]

please feel free

[@jhutch1470]

@@richardholdener1727 I wasn't trying to be rude. I have just heard that they can rob another 20HP. It would be interesting to find out how true that is. I do love your stuff, and watch you all the time. I apologize if I came off wrong.

[@rustyjunk9008]

Awesome!!

[@nitro1271]

Putting a Turbo on my 4.8. What rods and pistons would you suggest?

[@richardholdener1727]

just ring gap and stock pistons and rods works for pretty high power levels, or summit pro ls for forged

[@maxmaxwell7590]

I heard that the cams between the 4.8 5.3 and the 6.0 from 02 to 06 are the same. Is this true by chance??? I have a 4.8 in my 07 classic and installing a 6.0 from 04 out of a hummer. How much more power do you think I'll get both motors are stock. Thank you

[@richardholdener1727]

only the very early 6.0Ls shared the small lr4 and lm7 cams

[@tripstomexico9770]

Who makes that billet idler pulley?

[@richardholdener1727]

Tom Demuse

[@ryanliberty2384]

I will just say this. Pertaining to the alternator. Without a charge running through it, it's basically just a free spinning bearing. I think it would be better to have it charging a battery to see how much load it actually takes.

[@richardholdener1727]

charging at what rate?

[@3800S1]

It wouldn't be much, even at say a over the top 300w, that's only about 0.5hp at the engine with efficiency losses. Most of that loss seen was the water pump and PS pump, water pump primarily. Alternators are minimal loss in the grand scheme of things.

[@zacharymorris9917]

Accounting for belt and alternator inefficiencies, a 140amp alternator, at full output, will use a little over 4hp.

[@richardholdener1727]

that includes spinning the heavy alternator-the load won't change power by 4 hp

[@zacharymorris9917]

@richardholdener1727 Feel free to build a DC generator setup and find out for yourself. A good high output alternator is everything a 6.5hp motor can pull. A 3hp will NOT pull a 140amp at full field.

[@dnvr12]

In all honesty i expected more of a loss. But maybe because the AC and Alternator wasnt functioning?…. To me the 20hp loss is fairly small. But i assume “real world” when you factor in driveshaft and ac and alternator it may be around 50hp?. Either way its still less than i thought. When i see engine dynos i just say to myself take away 80-100hp lol

[@rustysausage69]

AC is never meant to run at wide open throttle (ECU turns it off automatically at wide open), alternator is a “concern” though, they do rob power.

[@dnvr12]

@@rustysausage69thats also a great point.

[@richardholdener1727]

alt load is like 2 hp, but drive train loss is a LOT

[@dnvr12]

@@richardholdener1727yea i just always use a general 15-20%

[@PalKokity]

I understand the ego 'boost' in taking off the accessories to be able to brag that you get a little more horsepower but.... What is powering that electric water pump? How can you switch to something else but conveniently leave out the parts required to make it function? Can you get down a drag strip without an alternator? If the answer is, "use a larger or multiple batteries," you are then adding weight. Isn't it realistic that an alternator is an integral part of the ignition system, not an "accessory"? This subject is probably beaten to death but, as a relative newbie, it does not look like a realistic application. I don't think "practical" is the right word.

[@richardholdener1727]

If you think that testing what each accessory is worth is somehow ego based-you have much to learn-BTW-easily possible to make a 1/4-mile pass on the battery alone

[@V8Lenny]

Lock turbocharger and test how much power it robs compared to same engine without turbo.

[@richardholdener1727]

lock turbo?

[@V8Lenny]

@@richardholdener1727 so that it doesnt spin. I've done it but didnt have dyno, was just driving "NA" , it seemed to run ok even if some say it doesnt run at all when turbo doesnt spin

[@thereal2scummy636]

Hmmm cool test but would have made far more interesting to have the alternator pulling a 50A load

[@AustinRBa]

50 amps at 14 volts is 700 watts. Throw in the expected 80% efficiency of most power generation devices, we're at 875 watts. That's 1.2 horsepower. You'll lose more in atmospheric condition changes than you will with a 50A load. If you don't believe me, a Predator 212 (advertised as 6.5hp, we'll just pretend that's accurate) is put on portable generators for sustained loads of 3500 watts. 80% efficiency brings that to 4375 watts, which is 5.87hp.

[@richardholdener1727]

far more interested in a minimal change?

[@thereal2scummy636]

@@AustinRBa champion your talking to a auto sparky I was saying that to make it a more honest test of accessories fitted and not the 50a is just a average load for a modern car

[@666skyshadow]

Not to be a stickler but alt was not drawing power so spinning it did nothing ans PS was not restricted so spinning it did little.

[@snakevale198444]

Don't forget the fan lol.. 😂😂

[@kevinwest3689]

Dual buckets, Whaaa! 😁

[@james10739]

Ya and run them with a transmission and an axle and tires because if you have those losses it doesn't matter if you are making 500hp at the crank but if you only have 350hp at the wheels you only have 350hp

[@richardholdener1727]

losses are not that great-see wheel vs engine dyno video

[@james10739]

@@richardholdener1727 ya but it's never 1 number if it was a flat rate or just a percentage then sure but that's only ball park

[@richardholdener1727]

specific components (rear end, axles, tire/wheel and trans) are much closer to a fixed rate-friction changes with power input

[@rotorblade9508]

it’s incredible how much power is lost, you could run a small car with that power. an electric water pump takes a maximum of 200W- 0.27Hp; steerig pump 15-55Amp @13V so maximum 800W - only 1Hp, Antermator conversion rate 0.5- so a total of 2000W, only 2.68 Hp. You lose 16.32Hp on alternator fan, belt/pulley, potentially worse efficiency waterpump (compared to electrical mostly due to worst blades design).

[@Ls_swap211]

Love these kinda odd videos I’m that guy that will mismatch parts because I get bargains or deals and end up with a peak power 7k rpm setup in a daily driver that never sees those rpm 😂 I over laid this with an older 4.8 stock dyno of his and it hardly ever made less hp or tq anywhere and made more from 5500rpm up there’s gains from 60-80hp I’d be happy with a Hi ram on a stockish daily driver 😂

[@kevindoherty2716]

Old school non electric cooling fans wasted more HP then anything else.. alternator under load charging and a.c probably right behind..

[@MVPisME383]

No doubt I gotta get an electric fan, mines the worst one on engine master's episode

[@PSA78]

I have changed on several cars and it's noticeable on the fuel consumption, with the fuel price today it's worth looking for a suitable electric fan. 👍

[@KompressorPete]

😊😊😊😊😊😊😊😊😊

[@deanstevenson6527]

⚡🐜🕳️ You said power. I was here. Like all good AntipoDeans.

[@thman6453]

You forgot a fan

[@chriswise1232]

3hp

[@Bozemanjustin]

Still not real world because you would be having some drag on that alternator. Also you would have under hood temperatures to deal with But it will be interesting to see, considering you always get so much more power out of things than they are ever rated for

[@boostkaboom7912]

JUST BOOST IT!

[@schasahan744]

Als erstes: es wird 10 Minuten lang über Dinge gesprochen und auch wiederholt die mit dem Test und dem Titel NICHTS zu tun haben, Nockenwelle, Federn, Timing usw.. Zweitens: der Test ist verfälscht, es soll so aussehen als wenn die Wasserpumpe viel Leitung frei setzt, um richtig zu messen müßte man aber die elektrische Energie (Lichtmaschine) dazu rechnen. Die Testidee ist gut, die Ausführung nicht.

[@jordanwaughtal7649]

FIRST

[@keything8487]

obligatory comment ........... here

[@sanchoramirez8357]

Real hp test should be done in a car. For true hp rating. 😂😂

[@richardholdener1727]

silly

[@413x398]

Dood! Like, where's the six-blade fiberglass metalflake engine fan, dood? In the 70's, we could pick up 25 horsepower with one of those. Fer sher. Geeez, and you call this real world? I'd be shaking my head if I could actually feel it. Oh the colors. Dood!

[@richardholdener1727]

those flex fans were buzz saws and lost huge power

[@413x398]

Oh I know, just messing around. They look cool and retro hanging on the wall, though. As you know, I grew up in the SFV/VNB scene back then. @@richardholdener1727

[@kenm724]

A 15 WHP (maybe 20+ in the car) loss/gain is nothing to be sarcastic about.. my Camaro loses 25 WHP with the NPP exhaust closed. On equal 60 foots that is worth 1/10th and 2 MPH. I’ve got a rear wing worth another 1/10th and 2 MPH. Knowing these things matters to people. My C5 saw a slightly larger difference than the Camaro by me accidentally pulling the belt off before a run. The Camaro has no PS pump, but the C5 does. Oh, and that pump alone is also worth 10 WHP on its own in case anyone is wondering.

[@agoogleuser7784]

You really kept dragging this video out and repeating things over and over and over. Great information that I wanted to see but you should cut the fat in the edit.

[@craigquann]

Isn't this how a manufacturer would run it? Fully dressed?

[@richardholdener1727]

do racers use the motor the way the manufacturer offered it?

[@codystrom8708]

Accessories>electric water pump..

[@beaumont9072]

America 🇺🇸💪🏼🦅🛠️