AMR 500 Supercharger Testing - is it as Good as the Internet Says?

[DISCLAIMER] I've been told a few times that I'm an idiot and I should have known this wouldn't work and blah blah blah, keep in mind this is a review of a CHINESE "rebuilt" AMR 500. Which are basically used and worn out with a fresh coat of paint, reason being the average person would most likely end up with one of these.

I'm mostly making fun of the listings you see of these claiming that they're good to 2.0 - 2.2L, which is laughably wrong as we saw. It could MAYBE make 1-2 PSI with a tiny pulley, but it already ran nuclear hot with the pulley that was on it. I've also had some questions about the 13:1 AFR, saying that it should have been richer for boost. We never actually made any boost with this thing, so there was no need for a richer mixture.

Richard Holdener is experimenting with the AMR 500 if you want to see someone use one correctly. All hail Richard Holdener.

Looking for power adders for a Sundance what a waste of time just buy any other car and it would probably have more power

I have a 1.2 fiat 500
Should i get an amr 300 or a 500?

The 500 in AMR-500 stands for...500cc.

i worked with a friend that has an amr 500 installed on a 98 mazda b2300.
we ended up with a oil cooling system running hydraulic fluid of similar viscosity to 5w20 motor oil. a little 5 psi inline oil pump forcing the fluid thru the cooler then back into the amr.
its been almost 2 years now, but when he tested with a USED blowoff valve set to 4 psi offshoot, the valve did infact open enough to release pressure.
idk about his hp gains, but it did a gps 0 to 60 almost 0.9 seconds faster when we tested on a cloudy day-about 58 f

Lol I like that you basically say outloud exactly what my brain would be thinking in the same situation

😂😂😂 I'm not a mechanic or a tuning expert but I knew what would happen in this video when I saw the car you installed that small supercharger on 😂😂😂. Those are great for the intended engines size and not your engine . You choked your engine by yourself ..try an mercedes slk supercharger instead that would work better for your engine .

Richard Holdenner's test showed these take 28hp to turn on a LS.

It would be good for a geo metro

Correct, on some pages the specifications say that it is for 2.0L engines or less, I think it could work with a 1.6L

There is nothing wrong with these chargers. It's simply way too small for your engine. It never would work. The mistake is yours. Not the fault of the supercharger. They are for japanese kei cars.. tiny little things.

I don't know much about cars but doesn't the forced induction mean you need to change the air to fuel ratio? More air, more fuel needed otherwise you wouldn't overcome the parasitic load, right?

Way to small for anything over 1.4L. i would assume they would work great on small ATVs or motorcycles? 😂 Yeah turbo is very nice!😂

are you upgrade ECU?

Well if you want more power first things first build an engine that can take the power! Add more power and remove structure from the area that holds the power! Brilliant!

intake radius is wild also, but I don't have one looks bonkers to me

You could change the input and output to a larger size might help it get more air flow they are restricted from out of the box

Angle grinder 👍

I wish they would make a 1000cc version, just elongate everything a bit. It's so tempting with how cheap these are but man are the applications limited. It's nice to see an actual video with one, when I was researching these it was 90% speculation.

They more for a lawn mower if that

I've got one sitting around, waiting for a 1.3L or smaller 4cyl to try it on like a starlet or a Mazda 121.

You could’ve easily increased power by getting bigger intake and exhaust flanges on the 500 the pulley like you said wouldn’t have done much even with that said you’d be luck to get a 8 second run these 500 are trash only good use is a twin charge set up

Crap+crap=crap.

triangulating in the dark.

Your just saying that so you can buy them all for yourself

Very cool video. I was hoping for a small increase. But it is what it is . Was considering one of these for a 1.5L Honda engine. I think after seeing you results I’ll just do a small turbocharger and be done . 😎👍.

I've seen these do a bit better when new/custom flanges are made for the input and output, as the standard ones that come with it are a lot smaller than what they could be. I'd be hesitant as well using one of these on any engine larger than about 1.5L without at least enlarging the flanges.

The amr500 and amr800 aren’t meant for your car 😂😂😂

The other thing no one in the comments is talking about is the fact that scavenging has changed with the additional airflow, so without mods to the exhaust pipe, the frequency/flowrate of exhaust has increased, changing the length of the runners to correct amount may be helpful. (Since the supercharger isn't relying on pressure differentials on the exhaust side)

Maybe useful for a motorcycle, but dunno. Hopefully somebody has done it already, so I don't have to.

China keeps on laughing.

Makes a cool sound tho. 😅

Turbo is the way to go with small engines but there's a reason top fuelers are blown

U do know that in order to get anything other then parasitic loss u have to have an ecu to use it

Perhaps the math belongs before the install.

The vacuum on the super charger is PULLING the oil out, it's just not turning fast enough. But, I too don't believe two more thousand RPMs would do the job! But MAYBE! When I first saw them, I thought, not enough CFM...

there should be a law on who the company can sell things to and who can make videos on building crap that was going to fail as soon as it was seen in your mind

If i recall the amr500 was built for really low end power gains and just doesn't push enough air for top end Gain's. Back when i was a kid we used junkyard Eaton blowers. Could get then on old Mercedes and a few Japanese cars.
I think the modern equivalent would be the eaton tvs r200 through r340s.

We used them on gio metros and Pontiac fireflys and would spin 150-250wheel power on those little 3cyl engines.

You have to have something capable of pumping more air than the engine itself is capable of in order to increase manifold pressure and build boost.

It's leaking gear oil from the blower. This is because the seals in the blower (I'm assuming) are designed to operate in a positive pressure environment. If what your saying about the blower causing a restriction in the intake at wide open throttle, then that would mean that the oil seals in the blower were exposed to a negative pressure environment for however long it was ran at wot. Thus drawing gear oil from the blower casing.

The pulley ratio is 1 : 2.33 so AMR 500cc can make you 1,165 liters of air per one cycle and 2,33 liters on full revolution (two cycles). That means that it only slows you down cose there is no boost ;)

People don’t account for how small this thing is. 😂 h ever suck a pea through a straw. Good luck 😂 that’s what it’s like. If this actually worked. No one would spend thousands on these massive blowers. It might work on your go kart. Maybe an rc car 🤷‍♂️ could work on a geo metro 🤷‍♂️ I mean my vacuum hose has a bigger hole than that 😂

I think the AMR 500 is a good fit for your engine and your craftmanship !

Glad you tested it! :) Good info!

I wonder if it would do any good on a 15 hp Briggs n Stratton ..or an old Wisconsin..

I love how they rip you off. Don't buy any supercharger without a compressor map. The map and intended hp will let you know if it the charger is adequate. The AFRs are to lean.

At best it would work on a go cart, four wheeler, jet ski maybe a yugo or ford fiesta type car that’s about it.

Now compare it to a GT35…

the biggest motor you should put this onto is a 1100cc car. or a 500cc low rpm motorcycle and by low rpm I mean a max of 8000rpm.

edit. and then see how you have wasted your time and money😜😜