LSA Supercharged 1972 Monte Carlo Hits The Dyno! Will It Survive?
We brought Ralph the Monte Carlo to Heintz Racing for some dyno time! Our goal is to get a baseline number from the 6l80e transmission configuration before we tear it out and replace it with an American Powertrain T56 Magnum swap kit!
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نظر: 218
  • Stapleton42

    If you’ve ever wanted an epic shirt with this car on it or just a 70-72 Monte Carlo in general…we got you covered 💪🏻

    • Ya Know
      Ya Know

      Ya know 🙄

    • Crispy 1
      Crispy 1

      I let my mom wear my original OG SAW hoddies and she said I'm not getting it back. She said "it's so soft and keeps me warm where's yours? Cause this one is mine now" 🤔🤣 She's one of the people that are always cold. So that speaks volumes about the quality of the hoddies. I guess I'm gonna have to buy another one for myself.

    • james t
      james t

      I put the suck it plate on the front of my 2wd 96 ranger

  • Matt

    This is one of my favorite whips in the Stapleton garage. Can't wait to see it back on the road with a t56

    • jeff


    • Tyler Broome
      Tyler Broome

      Love the car as well but my favorite is uncle Rob

  • Mark C
    Mark C

    That was an important dyno day, the Monte would've hurt a piston otherwise when you went to play with it hard, saved a bottom end rebuild right there!!! Having a live wideband to watch can also be very handy when making power so maybe you can lift in time to save some pistons!

  • Evel Koloski
    Evel Koloski

    i love how Logan is like "Replace the pump!" bigger is always better in the pump department.

  • D

    Such a sick car. Everything from the stance, wheels, paint, side pipes, monster motor, etc. I would daily drive the heck outta that monte. Ooh baby

    • Stapleton42

      Thanks man!! We will get it ripping good here soon

  • CompoundLML

    We need some sweet exhaust sounds of this thing ripping on the road.

  • RebelRacer99

    Tuner: 3rd gear. Ralph: Nah, I wanna go reverse now. Good ol' Ralph, ruining dignity since 1972 🤣

  • Ryu rc
    Ryu rc

    I like the escalade, and the sleeper aspect of your other builds, however this is by far my favorite. I still can't wait for the nascar wheels, even if you gotta trim, it will be worth it.

  • Mark Miller
    Mark Miller

    Oh hell yes, love the idle sound on that beast-----not super rough but choppy in an authoritative manner and reeking of horsepower. You have some fuel delivery issues to sort out, but, all in a day's work! Saw the post this morning, gotta watch and see what you all have going on back there in NC! The T56 will make it even more badass! I'm with you guys, sure do love me some hot rod engine videos! Thank you & Logan for all that you do, and for another great video for all of us to enjoy!

  • Daniel Howard
    Daniel Howard

    Can't wait for the 3 pedal content. The audio clips banging gears with that exhaust will be heavenly

  • PR 23T
    PR 23T

    Mitchell, that car has has the best sound! I like how the person running the dyno gives a "simple, easy to understand explanation. Cars would not be any fun if nothing needed to be fixed! Y'all are doing grreat!

    • John Snow
      John Snow

      I want to duplicate the side pipe idea on my trans am. Have a viper style side exhaust exit.

  • Crispy 1
    Crispy 1

    Ol' Ralph such a beautiful car, so many Gremlins. After seeing have all the issues you've had with this car it's to be expected that there would be something. But now you know what to fix. I love Ralph and I can't wait to see you get it completely dialed and ripping. By the way great job on the fan wiring Logan.

  • LSX bird
    LSX bird

    I'm very curious to see what mine will make when I have it redynoed. I had a th400 in it before, now a t56. Should make at least 50 more hpees now , maybe more lol. Cheap converter i has was robbing power too

  • Titan0191

    You guys are epic :-) keep up the great work :-)

  • deegan727

    Not bad, 543hp with no fuel pressure. Get that pressure fixed it’ll be over 600 for sure. I think you guys should do hand written notes on whatever you can find, expired Bed Bath & Beyond coupons, Starbucks receipts etc.😂

  • Joe Cameron
    Joe Cameron

    Ralph just wants extra attention. The best Ralph moment was literally when the trans exploded on the entrance ramp.

  • Rear Engine Shop
    Rear Engine Shop

    Sounds so good. Should be fun with 3 pedals. 👍

  • ceedubya

    Awesome video y’all! Can’t wait to see what the 72 does next!

  • tom moon
    tom moon

    This thing sounds insane 🤤🤤

  • Ron Wallace
    Ron Wallace

    man I had a brown 1970 monte carlo I loved it , my sister had a 70 my uncle a black 70 and my dad had a white 70 , great cars this one on here is gorgeous

  • Fastball Films
    Fastball Films

    That t56 will probably blow up with the weight of that car and how spirited you drive 😂

    • Stapleton42

      It’s really not a heavy car

  • Tom Jackman
    Tom Jackman

    Are you taking it back when you've sorted the wiring out to redo the Auto number or going straight in with the T56? Top work all round!

    • Stapleton42

      All good man 😂

    • Tom Jackman
      Tom Jackman

      @sirmonkey Yeah I must've missed that bit! Probably happened whilst the small person walked in to distract me :)

    • sirmonkey

      did you watch the whole video? ;) lol, he said after the pumps fixed they'll dyno it again since they need the numbers for when they put the T56 in.

  • Chandler Frazier
    Chandler Frazier

    Sure didnt think youd end up having a fuel issue. But like you said at least nothing broke.

  • Jay h
    Jay h

    Great video, I've gone back and watched the playlist on Ralph and Uncle Rob. They are great videos to watch. Lots of good info on them.👍👍👍👍👍. Keep up the great work.

  • txpacket

    Wish I could show you my dirt track Monte (1971) before she was wrecked…. This makes me miss her so badly. Even though it was 26 years ago, I see these vids with yours & it feels like it was yesterday lol

  • Ray Russell
    Ray Russell

    Your on the right track there no sense if your going to fix the wiring you might as well put a good pump in it, love that Monte everything about it is awesome. Both of you are doing a awesome job you guys are great together. Can't wait to see it back on the dyno. God bless you guys and as always be safe 👍

    • Stapleton42

      Thanks man!

  • LSX bird
    LSX bird

    I like the stickers with the orders! I gotta find something to put this massive XS power sticker on lol. Maybe my "uncle rob" no turbo having suburban 🤣

  • Lion On The Run
    Lion On The Run

    By far my favorite car on your channel. Escalade brought me here but that MC make me wanna break the law

  • Old Chevy Truck
    Old Chevy Truck

    The equal headnod you guys did definitely proves your soul mates lmao

  • the other Brent
    the other Brent

    I use the cheap digital volt meters from amazon. The ones that mount in the cigarette lighter hole. hook one to the fuel pump wires. Put a camera on it and go for a ride. You can put one on each end of the wire to check volt drop.


    Switched from auto to Tremec manual in one of our S10's and never looked back. Gained 50 h.p. to the tires so proof of less parasitic loss! This is on a 600 h.p. N.A. motor engine dynoed. Truck runs low 10's with a carburetor.

  • Tyler Broome
    Tyler Broome

    Love this thing, she sounds amazing but my favorite is still uncle rob. I can’t wait to see uncle rob to make more power

  • Tahoe's & Turbo's
    Tahoe's & Turbo's

    another banger of a video buddy and seeing Ralph on the dyno made me smile, way to keep going and not give up! new shirts look epic as well 🤘

    • Tahoe's & Turbo's
      Tahoe's & Turbo's

      @Mad Cow Mark I appreciate it 🙏

    • Mad Cow Mark
      Mad Cow Mark

      I enjoy your videos as well Tahoe's and Turbo's

    • Stapleton42

      Thanks man!

  • Keith Billiot
    Keith Billiot

    Another great video been waiting to see Monty on Dino Now I’m waiting on a vid with Logan driving the Caddy

  • Keith Beck
    Keith Beck

    Hey making progress slowly, question for you I got a 03 Denali with a 6.0 and 4l65e trans will a 80 hook up to my factory harness or what I got to do, it just started slipping

  • Mat Davenport
    Mat Davenport

    I wish you would finish the monte. I always loved that body style. And your doing a great job with it. Love how it looks!!👍


    My GAWD the Monte sounds good 🤘

  • Arthur Fricchione
    Arthur Fricchione

    Guys thanks for sharing the video. Keep us up to speed on the Monte Carlo. 🇺🇸😊

  • John Snow
    John Snow

    Yeah buddy I never would of bought my 85 trans am if it had a junk auto in it. Nothing beats a clutch and a shifter handle. I love my 5 speed manual vortec 350 swapped trans am.

  • Les Morris
    Les Morris

    Don't forget you can change rear tire air pressure and the HP will be different.

  • Terrell Chapman
    Terrell Chapman

    God that car sounds so damn good.

  • John Roberts
    John Roberts

    I love Logan’s philosophy, you in there Chang it.

  • Dale Menke
    Dale Menke

    Love the way that car sounds. It keeps kicking you in the balls. You just need to kick it back.

    • Stapleton42


  • Sharky's Garage - RC and More
    Sharky's Garage - RC and More

    So glad you didn't break it, with the new direct power and new pump that thing is going to fly ! #SAWChequeredFlagSquad (C.F.S) watching every video to the very end !

  • Joe Gilly
    Joe Gilly

    This is my favorite car in your collection.

  • Joeyray

    Dang I need some boom tubes.. Bonus Footage was cool! Keep it up!!

  • Dominick Howe
    Dominick Howe

    Will we be seeing Ralph on a raceweek sometime soon?

    • Stapleton42

      Not sure 🤷🏻‍♂️

  • SocalFun64

    My Father-in-Law had a 77 MC with the it long sweeping hood. It was soooo cool! I’ve wanted one ever since.

  • Brother2JiS_27s4 216
    Brother2JiS_27s4 216

    Duty shouldn't go above 90%(some say 80% but ehh..), it leaves room for the injector to recover for the next firing event...

  • Omar Morales
    Omar Morales

    I had similar issues with my tanks inc and 400lph walbro pump. It would have fuel starvation issues. I also ended up upgrading my wiring to a 10ga wire and i would have to keep the tank at 3/4 or full. Especially at the track. Anything less and on launch the fuel slosh would cause starvation. Turns out the tanks inc tanks aren’t properly baffled for efi as advertised. I ended up installing a fuel cell with a in tank holley fuel pump module and a new 400lph pump problem solved. Now this may sound dumb but what was your fuel level at during the dyno session, speaking from my experience…

    • Omar Morales
      Omar Morales

      @Stapleton42 if you have any questions let me know, we pretty much have similar combos. I too run the BTR PDS stage 3 cam. When you get all your bugs worked out this beast will be a low 10, possibly a high 9 second land yacht. Easy 630rwhp to 650rwhp combo. I’ll be more than happy to share my tune file (hptuners) if there’s any data you can use off it.

    • Stapleton42

      It wasn’t a full tank I know that. Thanks for the information that’s helpful. We will change the pump upgrade the wiring and make sure it’s full full next time we hit the dyno 😂

  • Mountains Garage
    Mountains Garage

    Where do we learn about the Dyno Guy? Seems cool and smart. I was afraid the Monte was going to paint the floor and walls in that shop!

    • Stapleton42

      Jeff Heintz

  • James Holbrook
    James Holbrook

    The HP number difference will be interesting but the real question is like at the track what is the difference

    • Stapleton42

      Probably won’t find out because this won’t be a set up drag car

  • Jordan Whinery
    Jordan Whinery

    Making Sunday mornings great again! Haha

  • Corey Wharton
    Corey Wharton

    This is another example of just pure America 🇺🇸

  • newhavenneil

    Love that Monte Carlo - there are no cars like that here on our little rock. (Isle of Man - you may need to Google) just lots of motorcycle races. It sounds really cool on idle, proper V8 sound.

  • Jared Richardson
    Jared Richardson

    My favorite car on the channel. So glad it’s getting converted to manual too

  • Henry Witt
    Henry Witt

    Thank you guys love the content

  • Life with the Lakes
    Life with the Lakes

    This upload is saving my positive attitude for today. Was supposed to tee off 15 minutes ago but we’re on a 2 hour frost delay.


    This brother is not stupid he knows numbers bring concrete results. Stape gotta get Logan a small 4x4 drag truck or car. Man that Monte it's definitely a contender.

    • Tom Keppler
      Tom Keppler

      @Stapleton42 ok now you gotta tells us what kind of car she likes so we're not wondering and maybe we help find her one


      @Stapleton42 awd crown Vic... Ooftaaa.

    • Stapleton42

      The kind of car she wants isn’t very easy to find but we will get one eventually 👀

  • Telecasteroil

    Awesome, wire up that pump !!!!! This Monte Carlo rocks!!!

    • Stapleton42

      Thank you!

  • Aaron abney
    Aaron abney

    I have always gone by, if you change and upgrade your pump always add a relay harness as well. Because the factory pump wiring is not near enough power or amps for that pump with what it draws

    • Ryu rc
      Ryu rc

      @Stapleton42 cant help it, maybe he didn't realize before 88 there were mechanical fuel pumps. However I am a dinosaur because I can build a carb

    • Stapleton42

      It’s not factory though. It came with the aftermarket stand-alone harness so I never thought anything of it

  • Aychdee

    Sounds SOOOO good at WOT……so good

  • jesus saves cars
    jesus saves cars

    Brother I ducking love this car still can’t wait to meet ya this season definitely on the bucket list your my favorite youtuber no lie definitely look up to ya hope my channel gets to your level one day always meeting the best guys on earth and living the dream and when u gonna pop the question on the old lady definitely a keeper brother she’s always with ya doing guy things I respect that mine never but I still love her 😂🙌


    Interested in that paint code and is the bumper painted or dipped?

  • Lord Kiba
    Lord Kiba

    Of course it’ll survive !!!

  • Trever Ricketts
    Trever Ricketts

    I gotta know more about that CGM GTO 😍😍😍 i own 3 of them haha 😂

  • Micheal Bonesteel
    Micheal Bonesteel

    Been waiting to hear that Beast sing on the dyno

  • Ben Carreon
    Ben Carreon

    Dyno numbers in reverse, for science.

  • Dan Gilbert
    Dan Gilbert

    Love the monte

  • Dennis Handshew Jr
    Dennis Handshew Jr

    Right before he tested the first pull sounded like it missed a little bit

    • Stapleton42

      It did

  • Prince G.
    Prince G.


  • James Larkin
    James Larkin

    Hope you get a restock of the ICT shirts in XL soon with the OG GMC front. I happen to be building this truck as well.

    • Stapleton42

      We don’t have any plans to re stock those at the moment

  • chevyfan 82
    chevyfan 82

    The Monte is one sweet car👍

    • Stapleton42

      Thanks man!

  • John Roberts
    John Roberts

    Great content thanks for sharing

    • Stapleton42

      Thank you for being here john. We appreciate you

  • Jared Farney
    Jared Farney

    Logan with the logic FTW!

  • Larry Norsworthy
    Larry Norsworthy

    Good looking car.

  • Seth C
    Seth C

    Love this car!!!

    • Stapleton42

      Thank you Seth!

  • metrickarma

    Can we see Logan do cart racing??

  • David Garland
    David Garland

    I love that car. You make awesome videos. Logan is not only beautiful but she is really intelligent. You to make a great couple. When are you going to build her something to race other than the go-cart? Keep up the good work.

    • Stapleton42

      Thanks man. When we can afford a fastback mustang lol. That’s what she wants


    Off the wall question, any idea what the mats are under the lifts and Dyno? Thanks


      I just checked out their Facebook page it looks like the rubber coin floor inside some race trailers. Thanks for the great content as always!

    • Stapleton42

      I don’t know…