CHEAP JUNKYARD M90 MAKES OVER 600 HP! IS IT A WORLD RECORD FOR THE 3800 V6 M90? 5.3L + M90=600+ HP!

[@DrFiero]

Totally picturing a pair of M90's with their discharges pointing towards each other at a 45*. Pair of idlers in the middle for good wrap. Single 102mm TB feeding both should flow tons!

[@pancudowny]

Why just the one, when you can double your pleasure...!😉

[@Johnnyvette383]

Very cool for sure. I have an M90 that been in my basement for 20 years plus as it was a warranty part off a 3.8L SC GP when I worked at a Pontiac dealership. IT was great the things GM didn't want back under warranty. Also got a free long block 5.7 LS1 out of a Trans am WS6. Motor had a knock but I was dumb and sold that for $300 back in the day before LS swaps were popular.

[@garyhatstat8449]

Aluminum block 5.7! I ordered a new 01 t/a ws6 black with gray int. 6 sp manual and that motor stock was pretty fast! Car was geared way too tall though bone stock

[@ThePapa65]

Ill buy it

[@Dalamjalam]

Can you do a difference of a stock 5.7l hemi like a 2010 and then running a stock 6.4l camshaft and 6.4l truck intake with a tune. I hear rumors of big hp gains

[@leebrady6326]

Very good information.. That is a lot of power from a 5.3 and the blower makes it come on way down low..!

[@Gearbhall]

Richard, I knew it would! I remember voting yes on that particular poll. I am looking forward to see what intercooling it does.

[@danielwilson6665]

Fantastic results ! My M90/3800 engine now has an inferiority complex 🤷‍♂️.

[@jamesfdeanjr7742]

Now i feel way better about the power I can get putting a m112 on my stroker jeep 4.7 in my AMC spirit

[@Supercharged287SOHC]

Doing something very similar to my 4.7

[@Nick_the_nomad]

I’m curious what the ported setup with the bigger throttle body would do back on the 3800. With ported heads also.

[@silentbravo]

This is junkyard building at it's finest and I love it. Now I'm kind of curious what the cost comparison to a cheap turbo setup would be vs. this at similar power levels.

[@richardholdener1727]

TURBO MAKES MORE

[@lifeishard1211]

let's watch the price of an M90 gen 5 blower double or triple. should we speculate on how much boost it will make on a 6.0LS? maybe 4 or 5 lbs.

[@silentbravo]

I think this is a little to junkyard rigged to get that much traction.

[@allenl9031]

Stump puller, heavy inboard boat motor. Any chance to try it with the Holley low base, to see the effect of runner length on output?

[@richardholdener1727]

you will see that on the na test-vid coming

[@charleshinton7541]

Try welding up the silencer holes on the outlet side before porting the outlet of the supercharger. You could send the rotors off and have them coated as well

[@silvestree1]

I think the place that he's sending that supercharger too is going to hog out most of that material

[@lifeishard1211]

I've never heard of anyone recoating the rotors of the m90, but I guess it's possible.

[@nobodynoone2500]

Neat. I always thought small supercharger=heat=low air density=low power

[@richardholdener1727]

heat is a function of boost pressure-you make more heat at 10 psi flow less air than at 5 psi flowing more

[@mwqs1]

I love these videos with the cheap junkyard blowers.

[@mjmcomputers]

I see the 2nd blower getting prepped. Waiting to see what two of these can do.

[@NoNeedForSensorsOnYouTube]

Wow! Great find at the junkyard.

[@jud-asinsmith-stansell2022]

I would have assumbed the motor would have consumed so much that hardly any boost would be seen. I did catch boost numbers but Surely its not doing over 6 pound at about halfway on up in the rpm.. fun experiment. I got a 03 cobra factory Eaton on the shelf..

[@Saddedude]

Id be DROWNING that blower in methanol. Helps seal the rotors and should help make back some of that power up top. Will be cool too see how much the IC gains on this setup (please include IATs before and after), as it should be substantial.

[@lifeishard1211]

richard responded to one comment that he had temp sensors pre and post intercooler. I agree about the methanol, but hopefully he adjusts the air fuel ratio so it's not too rich. the only thing better would be some nitrous.

[@natelsx]

Seems like a smaller cam would help out even more with low and mid range. That would be an interesting test.

[@richardholdener1727]

if it does that na-then it would do that with the blower

[@natelsx]

@@richardholdener1727 yeah I understand that. I'm jus saying the cam that your running is mostly high end power which is where the blower is running out of steam. A different cam may take more advantage of the blower in lower rpms and may even peak close to the same. This is exaggerating but like make 600hp from 4-6k lol

[@Kstang09]

M90 all the motors! 👌💪 Thanks for the content, good sir.

[@916chevyboy]

Nice work Rich!🎉

[@timmiller260]

What about use a 4 barrel carb work on a 302 ford or 350 chevy i have a 38. 00 blower havent found the ford v6 bird blower yet i was wanted to be on my ffox covt 4 cyl it life got in way i just retired 38 years 101 kc

[@christopherpentland5375]

Wondering if a m90 from a thunderbird sc would be better? That way the throttle body wouldnt be into the firewall.

[@richardholdener1727]

MUCH HARDER TO FIND BY MORE CONVENIENT

[@alexcorona]

CANT wait for the inter-cooled version.

[@tptrsn]

Fantastic video Richard, thanks for doing the testing that so many people would think doesn't need to be done!! FWIW, my prediction is that the intercooler will lose power in this application. Can't wait to see!

[@hayden6056]

What's your logic behind the loss of power?

[@tptrsn]

@@hayden6056 My rationale is that the charge temperature isn't very high without the intercooler, because the boost is quite low. Therefore, I don't think the intake charge temp is causing a lot of problems with power. Add to that the idea that the the blower is completely tapped out from being able to pump any more air, and the intercooler will impede air flow a bit, thus reducing cylinder pressure even further. On top of that, the charge cooling will reduce cylinder pressure even more because of the ideal gas law. If all of that speculation is correct, the question is whether the cooler and denser charge quality will make more power than the reduced cylinder pressure loses. My guess is that it won't. It'll be fun to find out! :)

[@richardholdener1727]

you are missing one (actually THE) important point on your speculation

[@tptrsn]

@@richardholdener1727 I'm extremely excited to hear about it Richard! Should be thought provoking content!!

[@hayden6056]

@@tptrsn boost is a measurement of restriction. Yes it increases temp but those screws spinning at the speeds they are is still creating heat.

[@joelgross4597]

M133 next please. Love the tests Richard!

[@knowbull5hit590]

M133? What did that come on?

[@richardholdener1727]

must mean M122

[@brandonpayne1207]

Hey Richard, i cant remember if you put one of these superchargers on that 4.3l baby v8. It would be perfect for that build. Heck it would be perfect for a 4.3l v6 too.

[@lifeishard1211]

correct me if I'm wrong, but I think you meant to say 4.8l baby v8.

[@Rch5.0]

I have a tbird m90 i thought i wouldnt make enough power in my 331 with head cam and intake but now im thinking its time to port it and run it if i can make 500 hp id be happy

[@ronb113]

Loving this series

[@kylemilligan752]

Twin M90's!!!!!!!!!!! I know it's next, but the suspense is killing me!!!!!!!

[@sofuzzywuzzy]

Hmmm...i may finally have a use for the 1.6l twin screw I pulled from a C32 AMG 🤔

[@troymecey]

I would like to see this on a tunnel rammed sbc but with an adapter on the rear for a 4bbl.

[@madmod]

I wonder how drawing through would work. I dont know if the bearing would wash out

[@troymecey]

@@madmod good point

[@richardholdener1727]

they should be fine for a few pulls

[@madmod]

@@richardholdener1727 its almost cheaper to source a new m90 than order bearings lol

[@integra167]

@@madmodI believe the gen 5 ones are sealed. But I know a guy on here that put two gen 3 m90’s on a sbc, and he said his haven’t destroyed the bearing yet. He’s running a carb

[@lifeishard1211]

will you add a temperature sensor post blower, and when you run the intercooler, add a temp sensor there as well?

[@richardholdener1727]

already have that

[@lifeishard1211]

​@@richardholdener1727thank you Sir

[@DWBmotorsports]

Will this btr cam clear on a factory sbe head/ piston setup?

[@andrewchristmas2026]

Please show this test with an intercooler I'd really love to see how much power it will gain as well as intake temps.

[@brandonpayne1207]

Did you watch the end?

[@richardholdener1727]

IKR

[@ImNotHereToArgueFacts]

Can you please explain why hp does not equal torque at 5,252 rpm on all graphs we see?

[@richardholdener1727]

IT HAS TO CROSS THERE, UNLESS THEY HAVE HP AND TORQUE ON DIFFERENT SCALES (X & Y AXIS ON TEH GRAPH)

[@dwightvoeks9970]

Really digging that torque bump but would that huge stack fit under the hood? Do you have a measurement from valley to top of blower?

[@richardholdener1727]

USE THE LOW RAM

[@robertbrown1493]

Big question. How do you gain big horsepower without increasing compression with a SC.

[@richardholdener1727]

a supercharger does not increase static compression

[@RAMADDICTION]

I'm confused since people all over say these blowers cause restrictions on any application. Curious to see a test with this blower on a 5.9 magnum

[@richardholdener1727]

what does the na 5.9l make? if it is like mine-it makes like 300 hp na stock

[@neilsmith8790]

This is interesting, but we're really into the realm of silliness now. This blower is hopelessly undersized, when you spin the thing at close to 20,000 rpm and only gain about 50 hp you're pretty much pissing in the wind. True, it picked up a bunch of torque down low, but only gained 50 hp up top. I wonder how much power you could "make" with an m90 if you put it on a 15:1 572? It might restrict it bad enough to choke 500 hp off, but it would set a new record for m90 power.

[@richardholdener1727]

now you are understanding

[@CrankAddict]

it seems the cam is a bit big for that blower. Would it be better to cam the engine for a peak rpm of 6500 instead of 7500? Horsepower won't likely improve, but you should be able to get even more torque out of it. Also, I would like to see this blower on a mild 500hp 6.0.

[@chuckwhitson654]

MAN IM DYING TO SEE A TWIN M90 SETUP. PLEASE 😮, and if you do, try two different pulley sizes

[@jimmyj2563]

Currently doing exactly that combination of 2x m90 over a 302 Windsor. Blowers at 1.2 crank speed. Maths suggests about 7 psi of cool boost.. twin Holley carbs and lube to the rear bearings to overcome fuel wash issue of running them wet.

[@TheInsaneShecklador]

If there's enough vacuum to collapse the coupler does that mean there are still gains to be had from a larger throttle body?

[@richardholdener1727]

THE VACUUM IS ONLY PRESENT AT CLOSED THROTTLE

[@TheInsaneShecklador]

@@richardholdener1727 👍

[@puffkendrick6850]

Hi Rich, just gave away a M 90 blower off of a 3.8 liter buick engine.O well I'll share this video with the crew😂.

[@TheMailmanOfSteel]

Any thoughts on how to get this to work on something like a Small Block Ford?

[@richardholdener1727]

SAME WAY-ADAPTER

[@jimmyj2563]

Currently building an intake to mount two m90 over a 302.. just lots of fabricating. Using a later counter rotation pump and late serpent belt crank pulley and blowers at 1.2 crank speed. Should make around 7 psi boost we figure.

[@PullStartStables]

I know this question is not what this channel is about, generally. Fuel mileage. We just picked up a 2019 5.3L Suburban with a Whipple supercharger on it. If it’s easier to make big power with the cam, heads, etc, does that increase boosted efficiency during normal driving conditions?

[@richardholdener1727]

There is no boost pressure under cruise conditions at minimal throttle angles, so fuel mileage will be while running na.

[@knowbull5hit590]

Compression and head flow can help mileage, bigger cam will almost always hurt it

[@MrHevyshevy]

I wonder how it would be on a 6.2 diesel.

[@scotttimpany2845]

Holy crap! 7700 rpm

[@hardball107]

Interesting but, after you get a M90, manifold, have an adaptor built, buy a throttle body and all the misc. drive pieces and pay for the fab and machine work you can build a 6L and keep the extra weight off the front end and make almost as much power N/A or for a grand just add a turbo to the 5.3.

[@Gearbhall]

Of course, but if we want to see what the upper limit of the what the M90 blower is capable of, someone has to do this kind of testing.

[@Saddedude]

LOL sounds like someone who has NO idea how much it actually costs to turbocharge a motor.

[@richardholdener1727]

a guy who constantly seeks to find the negative should try being more positive (it really works)

[@knowbull5hit590]

1k to turbo a 5.3😂😂😂 your funny. Sure could with a free fuel system, free tuning, and free fab work

[@Saddedude]

@knowbull5hit590 free materials, free intercooler, valve springs... I mean i guess you could get a mid grade turbo for 1k 😆

[@randy6350]

Richard, For US people who DO NOT HAVE CONNECTIONS TO WELDERS AND ALL THE MACHINERY it’s going to cost MORE then just buying a proper Supercharger‼

[@richardholdener1727]

YOU ARE MISSING THE POINT OF THE VIDEO

[@randy6350]

@@richardholdener1727 And how’s that? Hey it’s not that I don’t like what you do but remember most of us “Joe’s” don’t have the connections you do! Sorry just my worthless .02 cents. I LOVE to be able to port my heads but I don’t have the tools or the skills

[@greenbassboosts8872]

You can still just get a gen 5 blower, port it lightly, use it.... I got one for $50+tax

[@scotttimpany2845]

BTR LS3 STAGE 4 V2 CAMSHAFT 233/25X .636"/.636" 113 LSA

[@jonmac155]

Only thing better than a crawfish dinner is 2 crawfish dinners. Wink wink.

[@josephd.4890]

Arizona impression the Mustang. The six guys were making seven hundred plus with a m ninety change for

[@richardholdener1727]

that is the roush m90-not this one

[@josephd.4890]

@richardholdener1727 I don't recall if it said who's m90 It was just that it was an m90

[@richardholdener1727]

MOD MUSTANG GUYS USE A DIFFERENT (NEWER AND MUCH HIGHER FLOING) BLOWER CASE AND POSSIBLY A DIFFERENT ROTOR PACK

[@rostonflawless]

What kinda truck flow heads are on this 5.3?

[@richardholdener1727]

220 as-cast Trickflow heads that were reworked by BTR (covered in the video)

[@Mrpdw1]

Has anyone put a 2r104 supercharger on an LS? I have an LS2 and was wondering if anyone might have info about making it work is this similar to the m90?

[@pancudowny]

"600-hp to the rear wheels... the beast is born to run!"

[@guyharrison909]

You've seen it, you've heard it and you're still asking questions.

[@barryhuddlestun3098]

I've been thinking about using 2 M90 a on a Corvair. But I've thought about it too. How about 2 of these on a 5.3? Hmmm looks like you are having fun with them.

[@richardholdener1727]

1 is enough for that motor

[@freyja4954]

Did you shut the engine down at 6500 due to blower RPM ?

[@richardholdener1727]

it was at the hp peak

[@speedgoat2824]

Pretty cool, but wouldn't it be more cost-effective just to get the right blower after doing all of that work to the m90?

[@6.liter-beater]

It would but what's the fun in that?? Richard already knows that

[@speedgoat2824]

@@6.liter-beater well that was actually a serious question, because it does seem like a lot more fun to build one yourself. I was actually hoping for somebody to answer me with how to do it on the cheap. Lol

[@richardholdener1727]

hard to find other blowers in the yards that are bigger and will fit-these m90s are all over

[@speedgoat2824]

@@richardholdener1727 thanks for the reply man, I really enjoy your content.

[@dwightvoeks9970]

Have you priced LSA's lately?

[@wtfobiden]

I got a 5.3 that needs this action

[@wtfobiden]

Minus the oil leak

[@hitempguy]

Has there been double M90's? What about triple?

[@Saddedude]

Not dual, i was working on it back in 2010 but it i got a GP GXP and turboed that instead and lost interest lol.

[@TheInsaneShecklador]

There are a couple of KZbin channels with twin M90s. One was a foxbody that I'm not sure was ever finished and the other is a Pontiac Sunbird that runs and drives.

[@shaadydog1]

So is this a Gen V M90? They were supposed to be almost as good as the old M112.

[@greenbassboosts8872]

He shows a pic of it from the underside. I can tell it's a gen 5. You can tell easily by the position of the rotors and the port. Gen 3 the rotors go past the opening of the port, gen 5 the rotors end visibly in the port. Probably it's a big reason the gen 5 is more efficient mixed with bigger port and intake side improvement

[@ravidear9191]

Where can I get that adapter plate does anyone know

[@richardholdener1727]

Demuse Engineering

[@shane-222]

🎉waaaaaaa🎉. More pulley!!

[@jmflournoy386]

"not spark" good to know :)

[@madmod]

How long will these remain $40 at my junkyard?

[@richardholdener1727]

not long

[@carlossantamaria7967]

@@richardholdener1727build an adapter for sale for cathedral heads and I’m pretty sure it would sell quick 🤙🏼

[@Scott_Buchanan]

I’d love to see what a ported m112 would do on this combo too! Great video as usual!

[@zd302gt]

Came here to say this.

[@alexcorona]

donate one to the cause, M112s are almost impossible to find at JYs here in California. When they do show up the junkyards don't even let them hit the yards, they're already pre sold...

[@richardholdener1727]

I already have access to the 112-I'm not interested in showing a bigger blower makes more power, we did that with the Demuse test

[@kyleolin3566]

I’m guessing torque for miles. Gonna really beef up that low-end power. Not much, if any, top-end hp.

[@lifeishard1211]

it looks like it had another 50hp, that 148 ft/lbs is really something.

[@kyleolin3566]

@@lifeishard1211 Yeah, it gained more hp than I thought it would.

[@jplperformance9073]

AWSOME video

[@Rampant_Colt]

Add an intercooler, and mill open the discharge opening with that 2.6" pulley for more gains

[@Saddedude]

Also block off the silencor ports, nobody needs that shiiii. Make er scream

[@bobbyshaftoe]

Sweet.

[@MADDMERK]

RPM!!! 🤯😎😎

[@bowez9]

For a 3800 maybe but not for a 3.8. 600hp is a number surpassed more than 15 years ago.

[@richardholdener1727]

WITH AN M90 BLOWER?

[@bowez9]

@@richardholdener1727 yes, ported. Running about 21psi. The joys of an intercooler and methanol injection. Around similar time was found head lift happens at 26psi.

[@logangaddy4917]

Now do two of em

[@RAWRMotorsports]

So 22° at peak with HOT boost and ppl are telling me my tune is too hot on a N/A 11:1 6.0 LQ9 @ 24° ?! WTF CALLING bS 😒 think ima add 2 more degrees 😂🎉🎉

[@richardholdener1727]

WE ARE RUNNING AT 140 DEGREE WATER TEMP

[@hayden6056]

Needs more 2.42" pulley.

[@traviswalters3911]

Am I the only one who wants to see two m90s on a 6.0?

[@richardholdener1727]

NO, YOU ARE NOT THE ONLY ONE-BUT IT WON'T HAPPEN ON A 6.0L

[@josephschaefer9163]

So 1200 hp with two m90s?

[@hondatech5000]

1st 🎉

[@krakhedd]

Be interesting to know what the specific HP was, so fuel flow is referenced as part of the term for comparison Might be cool to get new rotors for the M90 (convert it to a twin screw, if that's even possible?), methanol injection directly into the housing (makes the compression less inefficient), or even compound it with a turbo i.e. twincharge

[@richardholdener1727]

already did turbo feeding blower on the 3800. can't add twin screw rotos to this. new rotors might now work as well as these (these have carbon build up) and more power requires more fuel but if you are asking about BSFC-then the na motor is better because it is run leaner

[@Mr1stlevel]

LoL when is holly going to make you a real intake ha ha

[@scotttimpany2845]

#WRONGCAM. That is not a blower cam!

[@richardholdener1727]

there's the rpoblem!

[@jakelords24]

Twin m90s with twin throttle bodies....

[@basedsigma5634]

I made 759hp with a M90 on a 302 ford. So where is it a " WORLD RECORD😂😂 you americans think the " world" is the city you live in😂😂😂

[@richardholdener1727]

I'd like to see that 759-hp M90-and maybe you missed the question mark?