Twin Big Blocks Dyno'd Together - Engine Power S9, E5 & 6
ฝัง
- เผยแพร่เมื่อ 11 ก.ค. 2024
- New 2022 episode! The Stroker big block Chevrolet is already a solid, reliable, and powerful engine favored by gearheads everywhere. But what happens if you take two identical big block Chevrolet engines and link them together on the dyno?
We do something that has never been done before: build two identical 496 Big Block Chevy engines to run on the dyno...at the SAME TIME!! It’s do or die as we hook up both 496 Big Block Chevy engines to find out exactly how much power two of the same engine will make running in tandem!
0:00 - Intro
1:15 - Project Overview
6:40 - Twin Big Block Build
24:47 - Separate Engine Dyno Testing
29:44 - Engine Coupling
43:17 - Double Dyno Runs
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PARTS USED IN THIS EPISODE
Matco Tools
MATCO Tools are the Official Tool Supplier to Engine Power
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Summit Racing
Summit Racing Oil Pan Pro Pack
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Summit Racing
ATI Super Damper
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Summit Racing
Eagle Specialty Products Crankshaft
pntv.us/pn_pt_18469_62684973c...
Summit Racing
Howards Cams Camshaft
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Summit Racing
ICON Forged Pistons
pntv.us/pn_pt_18471_622664f18...
Summit Racing
King Engine Bearings
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Summit Racing
Summit Racing Billet Timing Set
pntv.us/pn_pt_18473_622666960...
Summit Racing
Summit Racing Timing Covers
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Summit Racing
Total Seal Piston Rings
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Summit Racing
VHT Engine Enamel
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ARP
ARP Bolts & Fasteners
ARP
ARP Rod Bolts
ARP
ARP Ultra Torque Lube
Goodson Shop Supplies
Goodson Piston Ring Installation Tool
Matco Tools
Matco Digital Torque Wrench
Sunnen Products Company
Sunnen Dial Bore Gauge
The Industrial Depot
Tools, Hardware, Shop Supplies
Summit Racing
Summit Racing Oil Pan Pro Pack
pntv.us/pn_pt_19146_623214ac5...
Summit Racing
Howards Cams LIfters
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Summit Racing
Quick Fuel Carburetor
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Summit Racing
Summit Racing Electric Water Pump
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Summit Racing
Summit Racing Valve Covers
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Summit Racing
TrickFlow Pushrods
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Summit Racing
Trickflow Rocker Studs
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Summit Racing
TrickFlow Roller Rocker Arms
pntv.us/pn_pt_19142_623b63d83... - ยานยนต์และพาหนะ
The twin engine run brings all the boys to the dyno cell. 😂
I don't know what the big deal is. This is just more efficient use of time, dynoing two engines at once!
All the hillbillies lol
Once again Pat has that maniacal look on his face when he does the dyno testing! I like it! 😎
Pat puts the 'man' in maniacal! 🙌✌
@@mikethatguy27 "Patniacal" :-)
If I was a creative video editor, I'd steal Pat looking like that then pan to a dude in an electric chair.
Looking like he's constipated as hell! 😂
This is awesome! Now of course we wanna see phasing tests, but I wanna see the engines phased so each bank fires evenly, into one 8-1 header on each bank! The sound would be INSANE! So that would be 360 crank degrees out, 180 cam degrees out. They'll fire into an 8-1 like a inline 8 would. That would be ideal exhaust header scavenging.
I want to see numbers for equal phasing vs. "in-between" phasing where one engine has a power stroke in-between the other's, so it would fire 1 1 8 8 4 4 3 3 6 6 5 5 7 7 2 2 with equal distance between each event. Maybe even combine that with a 360 degree offset to make 1 6 8 5 4 7 3 2 6 1 5 8 7 4 2 3
@@jckf yeah exactly. I imagine running them 360 out would be the best scavenging, but wouldn't be as cool a sound. Crossed over 180 degree style headers would make the best sound, and there's room to run header tubes between the engines.
Love to see that but Id love to see them blow!
That would be sick but I doubt they are gonna do that much fab work
A few take always from this episode;
WOW….
Pat’s face on that first pull WOW
Frankie geeking out WOW
Now you have set the standard that this show can be an hour long episode, can’t wait to see the next hour long installment.. nice work gearheads!
I love how Tommy pushed them to do another run 👏
too bad he walked away instead of congratulating pat at his moment of triumph
So... what car is getting this beast?
I second this!
I literally wouldn't want anyone other than Pat supervising such an undertaking. Great job, guys.
This was actually something I always wondered. Lol.
Can't believe how much power it made.
I think some 1950's dragsters did this... and, of course, think TV Tommy Ivo or Mickey Thompson doubled this with 4 engine dragster back in the day...
Its almost like how they research and testing an F1 engine, or at least, how they used to do. Build one cylinder, so if its good, u can multiply woth the cylinder number. 50hp one cylinder then u have 8 times 50hp or 10 or 12 times. Okay, its setup depends on the carbs, weight, the exhaust flow, etc, but this calculation works if everything works as its intended.
@@DaBombtasi yeah exactly like that
Pulling tractor guys build multiple engine stuff all the time.
Phase it 45• so it has a power stroke more often per revolution
This make sense V8 makes power at every 90⁰ of its rotation 45⁰ phasing will help to make power per revolution also putting more horse power engine at front and less horse power engine at back improve efficient crank loading u should use u joints or rubber coupling to connect both engines together if there is torque difference between drives there is twisting moment happen in drive shaft if u connect both engines side to side there will significant increase in horse power that means combination of two side to side engines coming in single shaft and torque will be 2.5 times
They would run smoother. The old radial engines were that way.
They phased them with the axle shaft spline. with the splines count they were able to phase it ~46 degrees
That's what I was thinking
They did
This is by far the most exciting episode ever!! We need more of this kind of experimentation, awesome build guys!
The 3 ARP bolts holding the connecting shaft to the balancer on the engine connected to the dyno, is the best advertisement for ARP hardware there is. Three 5/16's bolts can handle 600 ft/bs of load 😳 The flywheel on the first engine had 6 or 8 of the same fastener.
3/8 but yer.
I'm surprised the welded axle held up, small weld bead on hardened axle.
They do make alot of reverse rotation parts for 454s, for boats. So I always thought about coupling them at the flywheel. When i was younger I remember seeing a rail dragster (twin bears, I think) coupled the engines together by pushing the flywheels together, and both motors at 45 % angles and 8 exhaust pipes sticking up in the center. Wild idea fellas
GMC actually made something similar to this for a while. For big vehicles like fire trucks they made a v12 engine which was basically two 351 v6 big block motors put together. I think they used one block but had 2 standard heads on each side. Those v6 engines were made from 1960-66 so I think the same years. It's called the twin 6 v12 if anyone wants to look it up.
Thanks for that info didn’t know this
is this not how detroid diesel made v12s
@@THESLlCK these were gas v12 engines. They did make the v6 and v8 versions of this motor as diesel engines though. Just google gmc twin 6. You'll see.
Copied from an article on them "Contrary to popular belief, the Twin Six was not the simple union of two 351-cubic-inch engines welded together. The Twin made use of a unique single-piece block and one-piece crankshaft, the latter of which weighed 180 pounds.
The Twin Six operated as if it were two separate V6 engines, however-it utilized four cylinder heads, four exhaust manifolds, two carburetors, and two distributors."
Isn’t that a diesel
What a classy man. If only every person had the integrity and humility of that guest.
very humble man!
One of the best episodes ever! In fact, this episode and the turbo charged Ford in-line six on my two favorite. Great job guys this was awesome
Finally, I'm able to obtain the knowledge of "why/and how" Dragsters (back in the day) and Tractor Pullers (still doing this) stage their Engines "in-line" with each other!
This has rotted my mind for some time.
THANK YOU for this demonstration!
My biggest question is "How and What is the Benefit"?
There is a guy here in town where I live that has a third gen Camaro with two Big blocks in it. One in normal location and the other in the passenger seat area. The two engines are connected using a V-drive gearbox from a speed boat that has been modified with another output yoke that's connected to a drive shaft that goes to the rear differential like any other camero would. It's freaking wild! He said it's like driving any normal car other than having a four or five hundred horsepower big block as your passenger instead of another person. He will openly admit that he has no idea what it will do because he simply hasn't got the balls to try LOL.
@@BubbaB43 V drive is a popular way to mount them side by side also. Front to back I've seen done with two sprockets of equal size. One mounted to the flywheel of the front engine, the other to the balancer of the rear engine and a double roller chain wrapped around both sprockets. Seems like less mechanical interference than the rigid spline that way too. There will always be some misalignment and that's why a coupler with some flex needs to be used. I think the shaft setup they have here would lead to early crank bearing failure.
Umm.. what's the benefit?? TWICE THE POWER !! 🤘🤘
Absolutely loved this video! Pat & Frankie work well together and really know how to explain & demonstrate their knowledge. Excellent stuff, guys 👍🇦🇺
With 2 V8's we will ride eternal shiny and Chrome
I’m thinking this is the BEST episode yet!!!!!!!
Now the question becomes, “what happens if we put THREE engines together?”
They might have to build a bigger dyno cell to fit 3 engines in there
Three engines and 3 turbos
Then four then maybe five ????🤔🤔🤔. Mass carnage 🤔😁
I like the way you Gents think!
Garage 54
YES!!!!! This is the kind of crazy risky experimental goof-off testing we wanna see!!!
Wow, what a cool episode from you two! Since projects, and Inlines are popular, I've got a true Old School Engine challenge for you guys, ---> Packard Straight 8! Specifically the later gen. versions like the 327 and 356 C.I. The reason being is because the bigger Packard Straight 8' blocks from the 1950's had "9 Main Bearings" versus every other Straight 8 makes. Perfect for doing a performance build, and even aTurbo build in the future.
Probably one of the most exciting episodes of EP I was glued to the screen!
Great episode boys….loved it.
Even better, as an Aussie, to hear Frankie say “oil gallery” and not “oil galley” put a smile on my dial.
Bravo Frankie👍
Tommy Ivo built multi engine dragsters back in the early 1960s. Today, we see large multiples of engines in 'tractors' built for competition pulling. Fun to see this on the dyno to see exactly how they add up. 👍👍👍
One day I'd love to see these guys build a mountain motor. Something like the GM 632 completely built up.
Or a study of say one of Sonny Leonard's monster motors.
Wow very cool! Very impressive to see two engine hooked together! Cool show!
I've been watching all you guys for a looking time and have never seen that level of excitement from you. And I gotta say, that was awesome
Cool project. Thanks for taking us along for the ride
If I remember right, there was a dragster, years ago named " Freight Train" that had 2 engines back to back.
Great video and testing.
Good that you’re using 4130 cranks especially on the rear engine. Have you calculated the actual “twist” the extra torque is putting on the rear crank? Just wondering how many degrees early the timing is in the rearmost cylinders because of the extra twist. Great job guys!
That was ABSOLUTELY AMAZING!
Congratulations guys!
That was good. Great job guys. It was worth watching and I enjoyed every minute of it.
Cadillac did a 7.4 V16, and was awesome, imagine if they release a luxury sedan with one of those.
Cadillac also had a project of a 13.6 but it didnt made to the factory =(
Knowing Cadillac it would still have like 100hp
Anyone remember the GMC "Twin Six"? Basically the same thing, as whats going on here, only incorporated into the same engine block.
Or 2 of those as a concept vehicle? They are well known for making land Yachts. VERT long nose short ass.
@@markhenry5294 the 702 was a neat engine with peak torque just off idle. Unfortunately super long and it didn't take much frame flex to shear engine mounts. It would be nice to see what it could do with good 4 valve aluminum heads and and a high compression ratio. The 7.5 didn't provide much horsepower per gallon and the 2 barrel carb gave just enough to get it up to 60 mph
That was insane! And seriously cool! Good job, guys!
Just saw this on the free TV and had to drop a comment here to say I love the show. This has been my favorite episode so far.
Strong work, gentlemen ! 💪🏼
The faces that Pat makes when pushing throttle are hilarious. It looks like he is trying to squeeze out a huge fart.
Another fantastic experiment I would like to see more of these oddball things on the channel keep up the good work and I'll be back for your next video!
I cant like this video enough times! When is the third engine coming! SMILES from ear to ear!
I saw a 66/67 Nova with a pair of 4.3 V6s at Pomona Street Legal Drags several years ago. The builder was making passes after changing the way the engines were phased to one another. He had a single distributor between the engines made from a Jag V12 piece. He would change the firing order to match how he phased them, then go make another pass. I can't remember the results because something failed (distributor drive setup/engine coupler?) He said it made a difference in power, but I don't remember details. Pretty crazy street car.
I'm surprised because, I didn't think it would have made that much power. I was thinking it would only make around 900 horsepower.
It was impressive without a doubt. I didn't think it would double the horsepower, but for all practical purposes, it did.
Great job guy's!!
Awesome work guys! Also just love the way you do your work: everything is clean, orderly, precise, and considered. Definitely makes me want to lift my game :-)
so, this has been done before, just not really with stuff like this. Detroit diesel 2 stroke engines were just bolted together if their cylinder count was greater than 8. a 12v was two V6's, and a 16v was just two V8's. That said, the phasing of the stroke can greatly affect vibrations here. phasing these engines 180 degrees apart would likely help with crank vibrations.
There was a 12V71 all single block, the 16V71, 16V92 were 2 V8's connected together I never heard of 2 V6 engines being connected I drove a truck with a 6V53, I can tell you it would be a waste of time and money to put 2 of those together
@@bertgrau3934 and yet there was a 12v53
@@dalegawne5286
Yes there was, but I would bet that for the power verse the fuel consumption it wasn't worth it. Just my opinion .
Holy F. I'm saving this one to watch while I'm at work tomorrow. Twin BBC's, you gotta be kidding me.
That was very interesting to me. I am glad you mentioned the phasing between the two engines. I never even thought of that.
i wonder how it would turn out using a clutch bearing system from a drag race setup to allow some independant response from each engine?
Crankshaft torsion on the output engine is probably a factor in the total power output. It'll be interesting to see if phasing makes any noticeable difference but with 16 cylinders even an odd fire engine will run pretty smoothly. Maybe a flexible coupling between the two would make more power just because it would help with softening the firing pulse harmonics. Good job guys it'll be interesting to see more results. Thanks
Why do you think they put forged chromoly cranks in the engines?
When you do something that everyone else can't is exactly what makes it cool and why me along with everyone else is tuned in to your channel!🔥🔥🔥
The look on pats face was priceless
My lord
This is probably the best episode in years
Way to go men 👍👍👍👍
I would like to see it again with the engines timed 180 apart
I was thinking the same exact thing
Would that cause a ton of vibration?
I was thinking mirrored cam and crank, so instead of both engines firing 12345678 (o know that's not how theye fire but for example) they shoot 1,8 2,7 3,6 4,5 Ect, also I want yo know if there's a difference aligning TDC for both engines to start at the same point or if you stagger engine a and b
So there both at top dead center right now ?
If they are 90 or 180 out there are still compressing two pistons at the same time. More interesting would be 45 degrees off so only one piston is compressing at a time
Just think of the Ton of Horsepower and Toque the 2nd engine has on the Harmonic Balancer Keyway and Key? Impressive. Loved it. Thanks guys.
yes, when Detroit Diesel did these bolt together designs, the crank was either cast from a single piece, or the crank was bolted together at the block split.
Lifelong question answered! Thanks guys! Shared to Facebook. Awesome job!
This what it is all about. Engine Power seen, but Two engines together. What an incredible idea. Really good to see, Professional Engineering and Engine Management with a very Good Channel. I was very Impressed with your Excellent video. Well Done Gentlemen. You have just achieved what the inventor of the Jet Engine Mr Frank Whittle tried to achieve, but his Engine BLEW UP!!!!!!!!! Your engine did not. I Salute You both. Jonathan.
You've doubled the parasitic loss by connecting two engines. I'm surprised the power only dropped that much. Each engine is pushing it's own loss plus the loss of the other engine. Great work!
More likely an exhaust problem... maybe even a muffler out of view...
I'm sure Frankie was secretly hoping his made more #'s while Pat knew he wouldn't be outdone lol.
I hope y'all try to tune them more to see if you can exceed the separate #'s. It's the same principle as all the other projects. Yes I know they did before putting them together. So what's next with the twins? Nitrous? Blower? Top fule hats X's 2? Hmm 🤔
I grew up watching a few cars with twins and heard stories every day from the old timers about the Top Gas days. We used to race Nostalgia Eliminator #1 and back in the Goodguys days, Mike Kirby ran Sissel's twin six car regularly with two 250 style injected sixes inline for consistent 7.50 ets. Another twin six was the Clarke and Alred Twin AMC car from the same era. These were actually Late 60s comp eliminator D Dragsters running on a loophole in the rules for a few years. Then there was Jeep and Ronnie Hampshire who ran twin F85 Olds motors with custom 180 degree cranks in them, The Odd couple ran a Chrysler and a Small Block inline, John Peters and Bob Muravez ran the freight train out of Venice CA, there was a car with twin Pontiac Tempest 4s inline (1/2 of a 389 each) called Eight The Hard Way, Donnie Hampton even had a Corvette funny car with side by side twin small blocks. Thats just a few. Whenever I see a twin, I cant help but stop and check it out, they just scream cool!
Watching these Video's reminds me of watching "HORSEPOWER TV and TRUCKS!" with my Dad every Saturday Morning.
Before his passing (due to Ahltimers), we made the best for 4 year attending as many "GOOD GUYS" Car Shows and Swap Meets...
I just wish I listened/retained more Knowlage when I was younger!
He was a BOEING Engineer since 1960 working to Stealth and Nuclear Engineering.
Tim did really good. Sometimes you can tell the guests are nervous, they're a little stiff in front of the camera. Not Tim though, if he was nervous, he didn't show it.
There are more experiments to be done on this pair of engines. I want to see the results of further testing.
I certainly don't blame you for being nervous. That was absolutely awesome!
That was fun to watch! Love these guys! 🤙
There's no replacement for displacement. Would like to have seen a run with 45deg of phase on them to more distribute the ignition of the cylinders. That might introduce more stress on your coupler, but instead of doubling the impulse on each cylinder firing it would distribute the impulses more evenly across the rotation of the engine. A lot of theory in what I just said, but curious on how it would translate to an actual dyno run.
They did. They were at 46*
Always wanted to see how this is done
Awesome episode, it's great to see you guys experimenting outside the box. Very entertaining! 👏👏
Very cool! It's set up for phasing, that's the part wanted to see the most . Do another episode on that
I’d like to see one of these engines with fuel injection and a 4.0l intercooled whipple supercharger kit installed.
Would love to see the graphs overlayed of the 3 pulls. Curious what the curve looks like 2 vs 1 vs 1.
Should be identical curves... except for the numbers...
This is something i've been interested in seeing done professionally for ages. Even had schematics and some drawings laid out back in the latter 90's early 2000's.
I've a 1973 Delta 88 Oldsmobile, the 4 door kind that if you rolled all 4 windows down, it looks like a stretched 2 door.
I had it planned out to pull the 455 out and modify the vehicle into a 2 seater, basically eliminating most of the trunk, putting the dash and drivers seat basically just ahead of the rear wheels and transplanting 2x 455s under an extended hood for that vehicle. I even had a crazy heavy duty electric clutch on hand that would fit between both engines allowing me to operate only one if need be (obviously the one closest to the firewall) and allowing me to fire up the 2nd one on a whim and locking the clutch. the Clutch is something pulled out of a john deer combine that is used to engage the rotor, which is designed to take one hell of a snap as well as an insane amount of hp/torque, so i knew it would do the job nicely and is heavy enough not to be a problem not to mention it's designed to attach basically directly to the engine anyways.
Unfortunately the project was backburnered due to the family circumstances, but i still have the vehicle and most of the parts. If everything went together relatively well enough that it looked like a professional paint job would do the trick for making it look relatively "stock" minus the obvious shortened cab and lengthened hood, we'd leave it that way, if however a lot of modification had to be made and we started running into constraints in terms of mangling the body up and making it clearly obviously not remotely concealable, we would drop the rear differential on it, and put a 1 ton dual or even a tandem axle under the back end, start welding random scrap metal to it in a relatively appealing way and keep it roughed up paint wise so that we could drive it around as a Mad Max vehicle.
Those three balancer bolts putting in work.
Would love to hear these with 180 degree headers
that is one massive ship anchor
That’s mint boys 👌🏻 Tommy with the background push for a second pass to see if it would break 🤣
Great episode 👏 thanks for content.
One of the best videos I've seen. Good job 👏
That was seriously cool, great couple episodes!
Great video guy's on a fascinating topic. I can only imagine this setup in a powerboat cruising offshore racer style. Those are nice power numbers and would even be awesome in a monster truck chassis with front end rear mounted engines. You couldn't run them coupled together but they are so well matched that they would be great in a monster truck chassis.
I worked on several multi-engine cars before. SBC 302 CI / 5 Liter engines were connected to 6 speed transaxles. There was no hard connection between engines. One engine / trans in front, one engine / trans in rear. Front engine placed engine first with trans in front. Mass of engine closer to center of car. Engines synced electronically. With no drive-lines used, no tunnel in cockpit. Both considered mid-engine, because engines sat behind wheels.
If we do decide to hard link engines together, we will add a clutch so one engine can be running, the other not running. Better gas mileage around town, and we can alternate what engine is running. This spreads wear more evenly. Car has 3 modules; cockpit, front power, rear power units. Each power unit has everything needed to run, including fuel. Entire power module can be swapped in under 5 minutes. Pull into the pits, get fresh engines, new tires, and fuel, leave pits ready for next hour at Le Mans.
End result 4 WD / 4 WS with over 2,500 HP. Since each engine was only producing 1,250 HP reliability was increased versus 1 engine creating 2,500 HP alone. Engines were using twin charging: two screw supercharger on engine being force fed large amounts of pressurized air from turbochargers.
Able to get much better linear power curve than with turbos alone. If turbo spins twice as fast, it produces 4 times more pressure. Resulting power curve increases exponentially. Combo helped tame engines, even good at low RPM on the streets. Not bad for a 5 Liter engine making 5 HP / Liter.
This prototype is good for 300 mph / 483 kph plus. We have a BBC 4 engine prototype with over 10,000 HP. It is good for over 500 mph / 805 kph. Waiting for Michelin or Goodyear to supply tires that won't melt or fly apart. Tires are the limiting factor for Landspeed applications.
When building identical engines, you will never get exactly the same power. You can get pretty close though. Even running same engine at different times of day will result in different power output. Shop temperature, barometric pressure, fuel temperature, etc can all effect power. Remember IROC.... identical cars and engines. Engine supplier was able to match them within 5 HP plus or minus.
I like they way these guys show us step by step.. keep up the work guys
I love your show I watch every episode this one was great, what a job !
amazing episode to watch
That was cool. Thanks guys.
My favorite thing about working in the garage is the problem solving....what is best, yet cost effective, with minimal effort......love the idea all the way through conception!
Tying two engines together actually does have a practical use. Out west in the Texas and Oklahoma panhandles I’ve seen several instances of two big block V8’s tied together as power units
powering deep irrigation wells in the Oglala aquifer. They’re not as common as they used to be, with big Cat and Cummins natural gas engines taking their place but they still are in use.
Wow … he’s verbal was awesome on the bearings… sounded just like my ol man for 30 years wow congrats!! Great work on this crazy big block build …. ! Man to run a block to wits end on four wheels .. can never go wrong with a big block Chevy! Ty guys !
This one really caught my interest. Loved it!
LOVING IT...This is awesome!!!!
Tim seems like a pretty humble and straight fella. Wish all car builders and racers had that attitude.
Definition of teamwork makes dream work.
Wait a go guys!
Now that's what I come to see 🤩
Phase comparison's would be awesome. Wish you guys would have talked more about this, but anyway totally awesome
This is been done in 1985 already in the Dakar rally with a semi truck dual.engines and both engines had 3 turbos and won the Dakar rally but still an amazing episode on power nation
Great Job Guys. I was sweating at home also.
Nice job guys!
The engines work great the setup did also but the way Pat and Frankie work together is pretty awesome also. Great job guys
Congratulations guys, that is what its all about right there.
This was epic!
Y'all are pretty dang brave for doing this!
Awesome to see. I imagine a boat or land speed application. Please test 104 and 139 degrees phasing to separate exhaust pulse. Thank you for great content 😊
Man I was on the edge of my seat during those pulls what an episode wow. Guaranteed the exhaust merging together and running the engines hotter made them loose power individually
4” to 5” no mufflers those engines are not even noticing anything from the exhaust
great show guys.
By far the coolest thing ever done by power nation