426 HEMI Cross Ram - Dyno BLAST

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[@micahcastillo9113]

One of the tuning challenges of a crossram intake, is that your actually tuning two engines to run in unison. The left manifold feeds the right side of the engine, and the right plenum feeds the left. The plenum volumes are nearly identical. Two O2 sensors would make this a little easier. The stuck float in the one carb needs to be corrected before Nick can successfully tune this engine. That is why he’s having trouble with a rich mixture. 🤷🏻‍♂️

[@meowerstationone3793]

Regarding Issue #2: Seems like Nick could use some real time feedback from the overhead camera. This is not the first time the overhead camera has picked up an issue, only to be discovered later in review. Another great show guys! That 426 is a beast!

[@stephenholland5930]

George will have to rig up a small monitor from a feed on the overhead camera to assist Nick.

[@dcrasta]

3 legends in one video ! The HEMI, the Crossram, and Nick. Maaaaan take this thumbs up 👍

[@NicksGarage]

Glad you enjoyed it!

[@dcrasta]

Me and my friends always do. The MOPAR knowledge and timecapsules are worth it. Happy Holidays and I hope everyone has a safe and wonderful New Year. @@NicksGarage

[@closertothetruth9209]

7 years from a dyno isnt to be sneezed at, good thing you allow us to see it all warts n all , makes it interesting, we learn something and it shows us the reality of this kinda industry.

[@mikedimaio1237]

That is probably the worse intake ever to have a fuel leak like that, it was only Nicks professional engine building and tuning that kept a backfire from blowing that intake through the roof, really sucks to not get the right number. I had so many problems with Holleys like that, I now longer run them, they are probably good for track only cars, I will never run one on the street again.

[@marcmo7138]

Seriously a violent transition from primaries to secondaries.

[@brianwaldo2642]

Perfect, a land rocket with no brakes 🫣. Dang, reminds me of my youth.

[@daledavies2334]

I think it was Horsepower TV that interviewed a Chrysler engineer from the '60's. He stated they could take any random.Hemi off the line and dyno it, and they all produced a minimum of 500HP. With production tolerances you have the average engine, some have a stackup of the poorest tolerances and some that were like blueprinted engines, where everything was as close to perfect as possible. What that indicates is the poorest made 500HP. What were the good ones. The 426 street Hemis were detuned race engines.

[@savagenomore]

Nick I really enjoy watching you trouble shoot things and I could tell you were getting a little frustrated but as always you figured it out.

[@acetomatocompany]

Back in 2016, my 454 was on a dyno. Cylinders 5&6 , the temperature would drop above 2500 RPMs. So we knew it was running rich in cylinders 5&6. It made 336 hp. So eventually I had a carburetor shop check an O ring for me. He confirmed the O ring between the metering block and the fuel nozzle bar wasn’t sealed. The hp after changing that little O ring went up to 556. After that, dyno test all engines.

[@dannypeter6565]

Hey Nick and crew, you all deserve a well needed break over Christmas. Dont worry , we will still be there in the new year. Cheers Everyone

[@NicksGarage]

All the best!

[@spanky659]

I was 19 in the fall of 1974 and thanks to my older sister bought a 70 challenger RT 440 SIXPACK. Had finance the car through Cherryhill dodge for 1499.00 easy payments for me here in NJ. Great car 31,000 miles those were the days.

[@zcam1969]

Nick that engine is a beast . in 63 you get a 413 wedge cross ram from the factory. i seen them on the street back in the day

[@stephenwest798]

I do believe the street Hemi's called for 10W/40 in the winter and 20W/50 in the summer. Least wise that is what my owner's manual said, and what I ran in mine.

[@gersonhay984]

Can't wait to see the Hemi you were Unboxing. Thanks for the Music of a Hemi.

[@NicksGarage]

More to come!

[@scottsavinski9311]

Gotta love the Elephant on the Dyno.... Glad you got it figured out Nick!

[@danaglass5394]

Dana "60" Glass. Sorry you didn't get the full test that you wanted, but the fact that you push forward to make sure your clients are satisfied is why you're the best. Thank you Nick

[@topperthompson580]

The 426 Master Blaster!!!

[@BNforever2009]

Im glad you found the problem with the dyno

[@samuelgoodman2825]

Love the bellcrank throttle.

[@jesse75]

U control.

[@timmotel5804]

I haven't seen one of those cross rams for many years. Love MOPAR. Best Regards to All and Merry Christmas.

[@farmerbob139]

probably the hundredth guy that says 'hey Nick, you need a realtime screen to watch the overhead.'

[@OlSgtLove]

DYNO MONDAY AT NICK'S GARAGE!!!!! LET'S GO !!!!

[@NicksGarage]

Welcome back Sarge. Always a pleasure to have you with us for the fun!

[@OlSgtLove]

​@@NicksGarage ALWAYS GREAT TO BE WITH YALL !!!! HEY GEORGE!!!!!!

[@leelavoie6753]

This is one of COOLEST builds I’ve ever seen!! If it doesn’t perform to top HP, it sure looks the Part!! Better yet, it will deliver everything you could dream of!! 😳😃😃👍

[@dtomaz1]

Be a good idea to have an overhead camera with a monitor to watch the carbs.

[@chrisjeanneret5091]

I seem to remember a video from a while ago with issues with the absorber. Wrote too soon, but at least my memory isn't failing me.

[@mikechiodetti4482]

Glad to see you found a problem in the dyno and are able to fix it. I remember a 413 Mopar that had the long dual cross over manifold and Dual Quads. Days of 32 cents per gallon of gas and Sunoco "Dial-an-Octane" up to 100. SUN-Oil-COmpany......SUNOCO. Good one Nick.

[@stephenholland5930]

Nick ran of those 413s on the dyno earlier this year. It was out of a Chrysler 300J.

[@GHP-mr3gs]

ESSO....S-O....Standard Oil...The SUNOCO reference just reminded me of another oil company's name that a lot of people don't know.

[@buzzwaldron6195]

Sunoco 190 - 260 was available... SOHIO was Standard Oil of Ohio... Shell is Royal Dutch Petroleum... Also, Gulf Oil, AMEX, Clark Oil, AGIP Oil, Cities Service, AMOCO, Texaco, etc...

[@nighthawk8053]

Okay ladies and gentlemen ,here we go! 🚀😁

[@edwardclark3980]

I still like the long ram intake better.

[@fd797]

Pretty scary watching that dyno let the engine rev free. Seems like a good idea to put a chip in it every time to whatever max rev you might want to go to, so as to not trust the dyno to do its job. A reboot sometimes 'fixes' these issues? If the battery was the problem before, weird to think a $30000 motor being protected by a $3 battery. I hope someone at superflow is listening. I hope it is the seal and you get it sorted out. I hope superflow is listening.

[@4ondflor]

That motor is INCREDIBLE. I can’t believe the size of it. The cross ram seems difficult to run, but who cares - it looks awesome. I think if I bounced my hemi off the rev limiter I’d have to change my pants! What a video, thank you so much for putting this together. And Merry Christmas to the Nicks Garage community

[@fabieneldridge3414]

That has to be one of the smoothest running ever. It’s pulls are effortless. Great job Nick ! 👍🇺🇸

[@darrellsomers5427]

People like you only care how it looks lol not how it performs ,so buy you a tunnel ram you will look so cool

[@pcspecialistpdx]

I noticed the fuel running into the carb the first time he shut down the engine.

[@davidlewis3169]

Humble suggestion: You might want a Moniter to view an over-head Camera in real Time. You would have caught that immediately. "Elephant" is a great Nickname for that Engine...Its huge, and probably drinks as much. Love your Show Nick.

[@488ci]

I always thought the camera over the engine was a live feed to see how the carbs were working. That would be very frustrating not seeing that one carb leaking.

[@yarrdayarrdayarrda]

26:17 if you look at the fuel flows from 5000 to 5600 (assuming 1 line for each carb) there's a discrepancy which would lead me to think the secondaries on the carb connected to "Fuel2M" aren't opening until 5700, where the 2 flows are within balance of one another, much like they are below 5000.

[@nickpanaritis4122]

Good point. Having carbs check again for performance.

[@buzzwaldron6195]

Vacuum secondaries should be linked together so they open at the same time/rate...

[@myleghurts3546]

Somewhere next Spring on a red light intersection, someone will find themselves with this beast one lane over....sucking all the oxygen from the other cars's intakes!!!

[@russabrams3982]

There is a filter on the inlet side of the absorber, over a period of time it gets plugged up, and during a test pull it will cause the absorber to cavitate, and the engine will overspeed. Easy fix , remove the filter, and back flush it. It will fix that problem. Keep up the good work !

[@rodneybyrd9516]

That gigantic plenum is designed to RUN but tuning is always an issue. Even tunnel rams with a smaller plenum area can sometimes use a reduction in volume! Nice video and great work!!

[@billjamison2877]

Always loved those cross-ram Hemi's Nick! Bill from Linglestown Pennsylvania

[@joeljenkins2876]

Man, that cross ram looks SAAWEEETTT!!!! Always great content from Nick’s garage!!! Great week, guys!!!!

[@milesstepanoski2410]

Did you see, looking each time the camera was on top of the engine while it was running, on the right side of the block was sparking, or shorting out, check it out you'll see it shorting out. Great content as always, Nick the great I say, showing the true mopar muscle engine, we in Australia in early 70's, our hemi 6 was lapping all the rest at Bathurst Mountain, until the first tyre change when the hot wheel nuts vanished and were not going on with the cold nuts, at the end the charger ended up 3rd, couldn't have a six lap all the v8's, could they!! Also, previously no budget was provided for the old 3 speed gearbox or the replacement of the front drum brakes, the chrysler ceo somehow couldn't account where millions of dollars went, however on the last race on the mountain the charger was given a borg warner 4 speed and disc front brakes, the cold wheel nuts and still came 3rd! But no more budget and got a bad narrative from the press, never recovered and closed down in 1980. Never back down, Nick. we love what you do, love from Australia.

[@1112223333111]

14:07 o oh the carb is dripping

[@mitchburk5112]

Would be interesting to see one of the "bathtub" Nascar single 4bbl intake on the dyno

[@RichieCat4223]

48:32 That ceramic seal reminds me of the one in a Cat 3208 water pump.

[@kevinwoolmer5478]

Wow,what a beast. Best auto show on utube by far😎

[@keithbrown99]

sounds like cavitation , air in water for dyno

[@alparker8661]

Sox and Martin called and want their intake back!!!!!!!!!!

[@erichlausch9886]

Hello to Quebec from Germany 😉

[@NicksGarage]

Hello Germany! 👍

[@tonyziogas7625]

NICK'S GARAGE NUMBER ONE ALWAYS

[@mitchellferre1652]

I can't wait to see how the 540 with TFS heads performs !

[@Musclecar1972]

I would like to see a cross ram setup like you had on the 300 earlier this year, and see what that would do on a Hemi, just for the heck of it, would definitely be something different to look at. I know Mopar never built one like it for the Hemi, but it would be cool to look at. 😂

[@guvsgarage]

Maybe add a permanent camera and live feed video screen into the control booth, so you can watch the carbs during each test. Great episode!!!

[@moparedtn]

Ah, the ol' Rat Roaster intake. Never had much use for them on the street, but they work great at the track... Merry Christmas everyone up there from everyone down here, y'all. - Ed on the Ridge

[@NicksGarage]

Merry Christmas Ed!

[@matthewwrice6044]

Thanks for another great video, Nick! This was the first time I have ever seen a Hemi with Crossram intake on a dyno and it was a joy to behold. Love to see the troubleshooting that you do, as well. Along those lines, it seems like being able to see the overhead view of the carbs, from inside the booth, would be super useful. Additionally, individual O2 sensors for each exhaust port would spot cylinder specific rich/lean situations like this very easily as well as aid in the tuning process. Anyhow, keep up the great work Nick and team!

[@nickpanaritis4122]

After video time. I went on trying to figure out the Rich mixture with dual O2 Sensors and had the same reading on both sides at WOT. Then looking at the camera we noticed a fuel leak in the carb at the moment we shut down the engine.

[@ericball6000]

got here on Tuesday, do to no internet from a bad storm, all I can say about the 426 Hemi Cross Ram , Sparta , Impossible is Nothing, cheers.

[@PatientXero607]

530 HP on the second run. So close to my earlier prediction of 550. What a beast.

[@shakerman55]

I would set up a live feed from the overhead engine camera to a laptop so Nick can see these things in real time instead of after the fact. Not that hard to do. 😁

[@mainiac4pats]

Thanks Nick and George! Happy Holidays from Michael originally from Maine! In ATL watching your videos and glad I am in the south. Really appreciate your skills George getting the right shots and angles. Nick intuition was right, the video proves that. Good luck with the water absorber, you’ve fixed that issue before. We all know you get there and find the issues with the tenacity of engine building, dyno running Sherlock Holmes! George you amaze me with the skills you bring to Nick’s dyno recordings.

[@jaybritt6275]

LOOKS LIKE A RACE HEMI * WITH UPGRADES. BEAUTIFUL SET- UP NICK .

[@rickschlosser6793]

Another unique fuel induction system by Dodge. Thanks Nick & George!

[@billdwyer7897]

That was fun to see the cross ram on the Dino , Have not seen one in a long time 😎👍🇺🇸🇨🇦

[@Ray-rj52459]

Now I know why a shaker hood has its name

[@margarita8442]

be careful u dont throw a rod darlinks !!

[@NicksGarage]

Thanks! Tell that to the guys who want us to take it to 7500 all the time.

[@bandagefreak]

Nick, you've got the patience of a saint - I'd have been throwing tools around the place and blaspheming to the heavens if I was in that situation!

[@Chris-bd8nj]

It's funny that engine easily would run to 7200 rpm they just love the upper rpms!!! My uncle had one rated to 8200 that engine loved it...dodge really out did there selves on this set up!! True muscle 💪

[@kwhite145]

Excellent Video Nick enjoyed it 😃

[@NicksGarage]

Glad to hear it! Thanks.

[@dinadaughtry8993]

Merry Christmas Nick and crew, Skittles said he wants a Cross Ram Hemi, I've tried to tell him that it's to much for the 73 Charger he said no such thing as to much, he's a hard head for a bearded dragon, maybe you should tell him but you would probably take his side, keep warm and enjoy your Christmas

[@greggsvintageworkshop8974]

Great video Nick! Great camera work George! Thank you for the update at the end, and so glad things appear to be getting sorted out.

[@chrischiampo7647]

Thanks Nick And Great Job With The Camera Work Diagnostic George 😀😊😀❤️ Merry Christmas

[@Brock_Landers]

We all know that the Big Three used to underrate their V8s back in those days, but for that 426 to make 505 HP with just a single 4 bbl carb when they were rated at 425 HP with dual quads is proof (even though horsepower was rated somewhat differently back then), that's still a BIG difference. My mom had a 69 Roadrunner back then with the 426, dual quads, and the A-833 4 speed manual and she would scare my uncles with it. She said that it would easily pull the front wheels off the ground on the 1-2 shift.

[@jackwade7115]

sounds like an incredable mom

[@jeffreybrandes881]

Nick's horsepower rating is the same "gross" rating as was used up to 1971. He dyno tests engines without running accessories like alternators and water pumps. Starting in 1972, the "net" rating was adopted, and engines were tested with accessories. This, and lower compression ratios, contributed to the lower horsepower ratings.

[@Mo-Town_Auto_Icons]

It's crazy how stories get exaggerated. I've never in my LIFE seen anything "easily" pull the wheels off the ground on the 1-2...that's LITERALLY some fast n furious stuff!

[@Mo-Town_Auto_Icons]

Sound like Mom was fibbin just a bit!!!

[@minnesotatomcat]

It did not pull the wheels off the ground, it takes way more power than anything back in the day had to pull the front tires off the ground. Especially a roadrunner

[@1SeanBond]

Absolutely amazing & Beautifully shot. Sure enjoyed seeing that 426 Hemi but ran into some issues at 5500 RPM ... like the update at the end Ty Nick for your efforts & never give up attitude! Cheers! 🍻 friend to continued,Success,health,happiness. 👍🏼🤝🏼✌🏼💫

[@NicksGarage]

Wow! Do you watch in fast forward? That was fast. :)

[@zcam1969]

the floats in the carb are hung open its pumping fuel through the vent

[@robertorhymes]

Damn son A Hemi plus a cross ram on Nick's Gareges dyno equals Monday fun Nick's Garage depletes the Monday misery by sharing muscle car history Before the engine is fit for shipment Nick is testing it with some cross ram special equipment Nick's Garage is a fun place to hang out especially when there's a Hemi with a cross ram about Can't wait to see if that cross ram gives the Hemi some extra clout Jimmy is in to witness Nick giving the Hemi the business it's not a boring test like litmus Big ups Nick George and Jimmy Merry Christmas

[@OaklynHall]

The engine had a lot of "movement" in it even when idling - it's was not running as smoothly as a V8 should have been. Could one of the carbs be "out of balance" (i.e. one carb richer than the other) meaning that one bank of the V8 was "fighting the other" and at high RPM this was exposed dramatically? Anyway, as usual it was a good video, thank you to Nick and George!

[@pmhullentertainment2068]

Hey Nick, could the valves be floating? It sounds to me like they may be. Since back in the day when I road dirtbikes. Whenever I would keep the throttle up a little to long. It would sound simualer to what is happening with that hemi. To y'all who don't know we had 4 strokes aswell as 2 strokes back as early as 1974. Valve flaoting was not a problem with 2 strokes since they don not have valves in the heads.

[@keithharris7365]

Awesome show always a lot of good information thank you keep them coming and see you Friday

[@NicksGarage]

You bet.

[@michaelraddish7898]

Intake manifold is leaking on the head surface.big problem with hemi trying to seal them up.

[@michaelraddish7898]

Dyno is taking a major crap

[@smallengineexpert6607]

The HEMI is notorious for being hard on parts...

[@61espo]

I’ll say it again, Outstanding! Thank you Nick for these fantastic videos! Happy Holidays to everyone at Nicks!

[@PatandDoopypoopy]

Look at that! We had a shot of nick videoing George videoing nick for this video. It's video being videod in stereo. Lol. Thanks guys for great content. Hope you had a bit of laughter on video regarding the video of video videoing the videographer. 😅😅 On a serious note, boy the hp is still aggressively climbing at 6k. 11hp/per 100rpm increase at 6k. Goodness seems like maybe 6500+ peek if the hyd rollers maintain control.

[@randylear8264]

I guess we are talking about the elephant in the room😂

[@alanboring2992]

The mighty hemi! Most engines didn’t have the air flow to get into trouble, they ran out of air over 5500. That mighty hemi had the air flow, how big are your kahoona’s! 425@5k, 500@6k, 575@7k, I’ve heard stories of 9k shifts from the old racers back in the day. And I’ve seen a lot of hemi blocks with windows!

[@robertsanders6463]

Well done again Nic. Keep up the great work.

[@zcam1969]

The cross ram only produced 35 -37 more HP than the 4 bbl. was it worth it

[@lilo2469]

Merry Christmas to Nick and family and Mopar Lovers

[@JUNKEdDudek]

Thank you for making this wonderful video! Sometimes Murffy shows his head and you just have to deal with it!

[@NicksGarage]

Glad you enjoyed it!

[@SeanJoseph-s2s]

Great job Nick ....thank you.

[@kyrenwelsh8410]

Another cool video,thanks for posting Nick.For future I would put fuel pressure gauge on electric fuel pump so that when you turn the pump off you can monitor a pressure and therefore pick up any carby leaks.I once had a 4 Bbl carb do the same thing and it pushed fuel through so fast tank went dry in an Hr.Good luck.

[@J.W.W.]

Nick, you can check that battery with a calibrated multimeter. I’d check both old and new battery voltage since that is such an important component.

[@nickpanaritis4122]

Yes, we have. But we know now that it is the Absorber Pump Seal.

[@windycityben4850]

Awesome camera work!!! Happy Holidays from Chicago 🙌

[@NicksGarage]

Thanks! You too!

[@Anthony-nw5zv]

Good video Nick, see you hopefully next week on the next video with the Trick Flow 440.😊 Take care

[@leonardcollings7389]

Mopar Engineers called it cross flow induction. It added some HP but produced massive torque increases.

[@pappy017]

Evenin Mr George an Mr Nick!! Have a Great week!!

[@NicksGarage]

Thanks, you too!

[@BigT27295]

Merry Christmas to Nick's Garage.

[@NicksGarage]

Thank you! Merry Christmas.

[@rockabilly46]

That is one impressive set-up. Thank You Nick for sharing with us. Very entertaining!!!

[@gettingeducated5712]

You are awesome, no substitute for years of experience

[@gulfy09]

Well thanks for the update.

[@bcbloc02]

Wow I would have expected the components in that absorber to have been much more robust than that.

[@NicksGarage]

Amazing how small the parts are. Yet it’s rated to 2000hp.

[@bcbloc02]

@@NicksGarage My Clayton dyno is only rated to 750hp but it is easily 4 times the size. It is only rated for 5000rpm and down though I have to use a reducer on an engine that turns a lot of revs. Mine is like Ed Pinks old dyno which apparently he got from Vic Edelbrock. Its an antique. 🙂

[@spudthompson1414]

That's the same intake on my 512Hemi the cross ram was the intake the Hemi was built around no inner mixing of the fule one carb feeds one head and the other carb feeds the other head there's a small square spot for vacuum vacuum there's a reason the engineer's did this it's for tuneing the bouth sides of the motor work together ! Just have to be a tuner.

[@glennk1931]

Another fantastic video.

[@NicksGarage]

Glad you enjoyed it

[@Kunfucious577]

Has anyone ever realized how much Nick looks like Al Pacino? He even talks like him.

[@dennissecor8092]

Great video Nick, you're very thorough!😊