Garage 56 Le Mans Engine Tech with the NASCAR Chevy Camaro ZL1 Cup Car

The Garage 56 Chevy Camaro ZL1 is powered by the same engine found in the NASCAR Cup series, but with a few modifications to run night and day this weekend in France at the 24 Hours of Le Mans. Learn all about it from GM Powertrain leader Russ O’Blenes.
#garage56 #g56 #nascar #imsa #lemans #lemans24hours #lemans24 #jensonbutton #jimmiejohnson #mikerockenfeller #chevycamaro #zl1 #chevy #hendrickmotorsports #johndoonan #racermagazine #marshallpruett #rickhendrick #chadknaus #lm24 #nextgengarage56 #LeMansCentenary #24heuresdumans #lemans24h #24lm #24hoursoflemans #24hours #24heures #lm #race #wec #aco #fia #24h #worldendurancechampionship #racer

[@joeyrao402]

I've got a group of guys drinking beer for 24 hours watching Le Man this year, and we're going to be rooting for you and the Corvette team this year. Go show them Nascar can turn right pretty damn well :)

[@viperford6840]

What about the camaro

[@RidinDirtyRollinBurnouts]

I am so excited to watch this too. I work at a mechanic shop and the race starts at 8AM tomorrow my time. Looks like I'm playing on the TV there tomorrow 👍

[@user-tu1ee6dc5f]

I want to come watch with you guys. The Camaro and the Caddy are insane!

[@joaomesquitadesouza2813]

Ó

[@anydaynow01]

Yep GM representing USA with G56, GTE AM, and LMP entries! Cadillac is doing very well so far. I just wish with Cadillac going EV they keep a V Blackwing car with a stick shift V8 as a low volume model from here on out for enthusiasts!

[@sirswerve2493]

This brings back the days when a push rod square plane crank V8 dominated the track. Long Live this beast of a engine. Long live American motorsports and the V8!

[@MRosati5000]

Boy, those guys are prepared. That intake looks awesome.

[@rosagomes6534]

0:11 mco8m

[@jerrylouis8930]

Understand that this chassis has no canards, and the air flow is directed to the upturned intake, along with the louvers.

[@CornFedZ06]

​@@jerrylouis8930 The vents on the hood are for the radiator air duct exit. Looks like the one above it in the middle is the intake.

[@blipco5]

Think about it… Iron block two valve pushrod engine! The technology is so old you could carbon date it. Yet it’s out there kicking butt. Pretty amazing. 🙌🇺🇸

[@jacobrzeszewski6527]

Ironically there are iron blocks out there that were cast before nuclear testing became wide spread. So yeah literally, could date the iron based on its lack of carbon 13. PS. Just found out it's mostly cobalt-60 that's the radioactive contaminant not carbon 13. So forget everything I just said.

[@paulchilders9969]

Overhead cams are older than pushrod OHV tech by one year. Not sure why everyone keeps spreading this "ancient technology" bs.

[@Dr_Xyzt]

The pushrod design itself is fine. The old heads were meant to thump along in a pickup truck pulling a load of dirt. The newer ones like these R07's and LS7's have the ports aimed up like a Ducati so the air has a straight shot into the cylinder.

[@RidinDirtyRollinBurnouts]

This is easily one of the most exciting Le Mans races in history for USA fans. The G56 Camaro, the Corvette GTE entry and the frickin Cadillac!! in the Hypercar class. We have a storie history in Le Mans and im ecstatic to see such a strong resurgence this year.

[@Bimmer_Bill]

Cadillac will get smoked. They’re not in the same league as the Ferraris and Toyotas … and even though the Porsche 963 is in its first year, the caddy won’t beat it either.

[@RonaldJones_13]

@@Bimmer_Bill Okay genius they are in the same league, it’s called the FIA World Endurance Championship, they are also in the same class, called the Hypercar H. They are also currently in third and fourth place overall.

[@Bimmer_Bill]

@@RonaldJones_13 American english not your first language? Time for a lesson. When someone says “they are aren’t the same league”. I It doesn’t mean they don’t compete against each other. It means that one is vastly superior to the other. As for their performance, they were clearly slower especially vs the Toyota and Ferrari. They’re performance was due to reliability which I’ll admit was good. Make no mistake that the Ferrari and Porsche programs are much younger and based upon their history and the lack of performance GM has at highly advanced racing programs (Ferrari and Porsche have won many more times at the highest end of professional motorsport F1 and lemans) its only a matter of time before Cadillac packs up their bags and quits. 😂

[@AM-uk7jv]

@@Bimmer_Bill Smoked huh? Cadillac took podium and had a 3-4 finish. Not a bad way to finish after a long hiatus. And all 3 of the Cadillac Hypercars finished. Your comment did not age well. Ferrari and Toyota did excellently, and Porsche got smoked.

[@Bimmer_Bill]

@@AM-uk7jv from a sheer speed perspective Caddillac was indeed last among the big four. I’m disappointed in Porsche but they’ve been out of the LM game for many years. The Ferraris and Toyotas were on another level as expected and unfortunately two had to retire otherwise they would have finished 1-4. You know they were clearly faster. Kudos to Cadillac for reliability which does matter in endurance racing. However, make no mistake Porsche, Toyota, and Ferrari have more racing technology in their bags. They’ve all won lemans numerous times, Ferrari and Porsche have won F1. Caddy couldn’t even make their own F1 car let alone an F1 engine! If caddy can’t win this year, they’ll never beat these premium car manufacturers again… unless they all crash out 😂. Yeah congrats on being able to take advantage of the fast cars crashing… also known as luck 😂

[@stephenlea5765]

Really excited to see how this team performs in the race!

[@Thors_Garage]

What's amazing to me is how long the R07 engine has been around. I remember when I first debuted back in 2007. Arguably one of the greatest race motors ever created.

[@DennisMerwood-xk8wp]

Arguably one of the greatest race motors ever created. Offenhauser 4cyl: Hold my beer! Cosworth DFV V8: Hold my beer! Ferrari V12: Hold my beer!

[@jandersen016]

@@DennisMerwood-xk8wp I didnt know "one of the greatest" was restricted to three

[@DennisMerwood-xk8wp]

@@jandersen016 hahaha I was going to go on, justin! Novi V8. Honda V10. Matra V12. BMW F1 4cyl 1.5-liter turbo - 1,400bhp. ...oh never mind!

[@warrenself]

Too bad it can’t make its normal power level anymore. NASCAR is so dead set on low horsepower.

[@lurkintomgaming397]

@@warrenself NASCAR would be better with more power

[@garf117]

Man. the production quality on this video is subtly very very good. The b roll of the car and the dyno/engine out footage spliced in at the perfect times. Whoever edits your videos is *chef's kiss*!

[@sirswerve2493]

There are two Camero's that have accomplished something extraordinary in motorsports in history. Bigred Camero from LA California and this beast. Both of these cars are something of dreams.

[@Sdpartscenter]

Great job y'all! Super excited to watch this every which way possible from home this weekend!

[@kobuserasmus2934]

Was the main reason I followed the race although it got very little TV coverage. Fantastic effort !

[@JimmyMakingitwork]

The more you know about engines, transmissions and brakes, really all components involved, the more you realize how monumental this is.

[@andyharman3022]

What a fun video. I knew Russ O'Blenes a little bit when I worked at GM 2014-2016. Wish they would have said how much power the engine is making and what max rpm they will be using. The GM R07 engine was making 850+ HP before NASCAR started restricting power about 10 years ago. I wouldn't have expected those 9000 rpm circle track engine to go 24 hours, but with it restricted down to current power levels, making the distance in a 24-hour race should be readily achievable.

[@Thraser999]

Maybe it is around the 700-750hp area like they had run for a time before the dreadful 550hp rules. But taking into account that they reduced the rpm limit, the restrictor has to be a bit bigger to reach the same power at a lower rpm level. Just speculation from my part, but that's the beauty of engine building/tuning...

[@andrewahern3730]

It sounds to me removing the tapered space gave back at least as much power as lowering revs took

[@user-Dr.]

Is this RO7 engine based on the LS engine block, or is it special made just for racing, nothing to do with production.

[@Thraser999]

@@user-Dr. Nothing to do with production, aside from the bore spacing, which is the same as in the old small block and LS/LT

[@FlyEaglesFly19111]

I say the RRMS and HP will be kept under wraps. For now anyway.. dont wanna stir up the Sunday round de round

[@DizzyMan24]

Just causally running an Iron Block in 2023, at Le Mans.

[@DennisMerwood-xk8wp]

Hardly casually Lucas - no word about the amount of money they threw at this thing!

[@DizzyMan24]

@@DennisMerwood-xk8wp True. Just figured it'd be an aluminum block.

[@ColdPizza98]

More durable for the le lemans aluminum would’ve saved them weight but probably would’ve costed them staying the hot for that period of time with that amount of power

[@michaelgideon8944]

Good job Racer! I hope GM let's someone do a teardown expose of this engine after the project is done.

[@isaacmatthews1966]

YESSIR MORE NASCAR LE MANS CONTENT

[@ronsutherland4653]

This was a great effort people, I really hope this will attract more NASCAR based entry's to Leman

[@thomasb1889]

The open hood view is surprisingly very much like what you see when you open the hood on most any modern car.

[@robertfonovic3551]

hogwash

[@thomasb1889]

​@@robertfonovic3551 Please explain.

[@CornFedZ06]

Not even close lol. Look at that ducting. Also a staged dry sump

[@terran5569]

Excellent interview, proficient questions.

[@BlackbirdGLI]

Keep up the good work Marshall!

[@JoseSantiago-hv3xm]

Many forget that this is not the first time Nascar has visited Lemans. In 1976 Nascar visited with 2 cars Also when the Ford GT40 originally began its winning streak against Ferrari in the 60’s, its engine package that was placed in the rear was originally derived from NASCAR as well.

[@lesbratton]

I'm amazed at how small that alternator pulley is, I thought it would be much larger considering the long periods it would spend at high rpm.

[@jerrylouis8930]

That hood is a museum piece.

[@FairladyS130]

Except for a drive line problem is all worked out well, congratulations.

[@frankfritz7389]

A few hours and counting..lets go guy's..🎉🎉🎉🇺🇸

[@Dr_Xyzt]

This has some nice safety features. -- The fuel rails are inside the ITB airbox, and then they put the filter element over that assembly. -- The fuel rails have a bulkhead connector that goes through the airbox and the bulkhead connector is solidly affixed to the carbon. -- Engine is mounted from a plate between the bellhousing and block, with some sort of front bracketry as well. -- Very short belts for the alternator and dry sump. -- ECR hook on the passenger side cylinder head. Pick the engine up with two chains, bolt the low side in, lower it until the other side lines up. Very safe setup. -- 3-bolts per cylinder on the exhaust ports. No single piece exhaust flange. Very robust setup, easier to fabricate. -- Simple clamps to hold the airbox lid on. -- The Y's for the header are 180 degree pairs.

[@Dr_Xyzt]

Carbon fiber drive shaft between the engine and transmission. I can't get a visual on the clutch assembly which might be conventionally affixed to the engine side. They can "Pot" it in the front transmission housing and we'd never know. I can't tell if it's a Hewland or Sadev. -- So, when you have a front-mount transmission, the drive shaft speed can exceed engine speed on long straights, which can result in a very dangerous driveshaft rupture event. -- If the clutch is on the engine side, the driveshaft can aid in the transmission failure. When the drive shaft is solid to the transmission input, it has to slow down immediately when the dogs engage during a shift. The 24H of Lemans is the equivalent of 8900 10-second drag race passes, so this car literally ran in one day what most drag racers run in 55 year careers. It's also equivalent to running the Daytona 500 6-times. Having the drive shaft hard-splined to the engine and clutched to the transmission has longevity benefits even though shift quality likely gets worse. However, that doesn't mean that's what caused the transmission failure. They could have had a control system failure. That can happen to anybody. -- The fact that the engine is an Iron block doesn't matter. Think about it. It moves the center of mass really low in the middle of the car, so that can work in your favor for stability. -- Garage 56 really did an amazing job.

[@griffinfaulkner3514]

@@Dr_Xyzt The transmission is an Xtrac 5-speed transaxle, so driveshaft overspeed isn't an issue and your entire second point is rendered kinda irrelevant. And having an iron block actually does matter to some extent, as it experiences less thermal expansion and is generally more rigid, reducing wear over extended periods of time at extreme temperatures.

[@Dr_Xyzt]

@@griffinfaulkner3514 You missed the point entirely. -- With a transaxle, you end up with a drive shaft that operates at engine speed constantly and its kinetic energy is discharged into the shifting mechanisms, be it dogs, or synchros. -- If the clutch is on the transaxle side, that would be an unusual format. -- As for the engine being an iron block. Usually with wet-sump front mount engines, we pay a weight distribution penalty. In this case, this dry sump engine is so compact and low to the ground, the net effect makes the car more stable. The front engine and rear gearbox is a barbell from a physics standpoint. 1/4 car physics work better. -- As for thermal expansion, I think it just keeps oil consumption down, which is really nice and consistent. The engine isn't a stressed member, at least I don't think it is.

[@griffinfaulkner3514]

@@Dr_Xyzt Your paragraph breaks are making things odd for me, you specifically mentioned a front mount transmission in the second point, which is why I made the transaxle comment. As for the engine, it isn't a stressed member, but the improved rigidity should still help deal with the incredible forces those engines experience; a Cup engine at high RPM has higher piston speeds than an F1 car because of the long stroke, so anything to help keep the rods intact will go a long way. The weight's still the biggest downside there, even with it as low in the car as possible, more mass is never a good thing.

[@Dr_Xyzt]

@@griffinfaulkner3514 Fair enough. -- I do the paragraphing because we all view KZbin through different devices which changes the way the words are displayed on the screen. When we try to discuss different concepts in the same comment, that makes things harder to cite. -- I'm more receptive to tradeoffs these days. Racing is research. When you see a good team make counter-intuitive choices, there's often a tradeoff that makes things better. I like building cars. When I see teams make a choice that isn't so standard, I sit down and consider pros/cons. For example, I'm doing a rear-mount gas-tank conversion on a vehicle. There are quite a few tradeoffs I'm introducing. The rear spring frequency will decrease, the inertia of the vehicle will increase, the exhaust system will be simpler/lighter, the fire safety gets worse, maintenance gets easier, I get to run a better sump for more consistent fuel pressure.

[@FlyEaglesFly19111]

Hendrick and Childress.. talk about superpowers coming together. Not surprised these rwo came together. It will be cloudy days for racing when Rick and Richard are no longer at the helms. Awesome info

[@anydaynow01]

Cadillac taking it to the world, hopefully they get a podium finish!

[@uvaionballer]

This is the most amazing thing at Le Mans this year. Can't wait to see you beat some GTs!

[@DennisMerwood-xk8wp]

" most amazing thing at Le Mans this year" hahahha - the Yank hyperbole is up to our eyeballs now about this iron block anachronism. LOL

[@BeanDip96_]

@@DennisMerwood-xk8wp Every single one of the European teams are going crazy over it. The whole pit lane is chatting about it lol

[@DennisMerwood-xk8wp]

@@BeanDip96_ Every single one eh! LOL The whole pit lane is giggling- not chatting.

[@BeanDip96_]

@@DennisMerwood-xk8wp Sure yep.

[@DennisMerwood-xk8wp]

@@BeanDip96_ Let's wait until after 23-hrs eh Beans - to see if it's still limping along eh "Pride becomes the fall." A proverb that warns against arrogance and hubris. People who exalt themselves over others will eventually experience failure and loss.

[@bthomasx]

Amazing. Good luck

[@Lanse1984]

They are running it 2000 rpm's down from its redline

[@richardburgesslll2459]

Pretty cool, Quite the achievement

[@Daz555Daz]

I wonder if we will see a Garage 56 entry next year? There have been multiple years without an entry. What sort of car would you like to see in future? I guess we do really need to see a fully electric car attempt the 24 at some point, so that would be cool. It would need a swappable battery pack though. Personally though I'd like to see Garage 56 have an F1 car in it (something recent like the Mercedes W12). It would need some modification, just like the Camero did from normal series specifications, but it would be very cool to see.

[@DerangedLib]

This car is going to sell so much on monday.

[@davidbrown8517]

I hope they have good windscreen wipers for Saturday.

[@bettonracing]

Good job pressing him for tech details, but he's good at keeping the responses generic.

[@ApSykesThewolf]

For an moment, I thought it had a "campaign"(recall) sticker under the hood lol

[@timbrown9731]

Look how they are channeling the air from the front end up over the car, interesting ! I wonder if they’re also pulling a lot of the radiator air out too..

[@CornFedZ06]

Thats what the louvers are for. That's the radiator air exit

[@nimrodrdc]

Pulling for you guys! Let’s go! Will the valve train live with thousands of laps of 3500 to 7000 rpm over and over every lap?

[@MaxVerslappin48]

He has clearly stated they have tested that and including simulating gear changes and running le man on the dyno

[@DennisMerwood-xk8wp]

@@MaxVerslappin48 Dyno running proves only so much my man. Otherwise we would be running engine dyno races!

[@stephenpage-murray7226]

Cup engines used to run near 11,000 for six hours at say Talladega

[@DennisMerwood-xk8wp]

@@stephenpage-murray7226 Bovine excrement Stephen! Penske's infamous high-tech stock block pushrod " Mercedes" V8 for Indycar, built by Ilmor in the UK for zillions of dollars, only maxed out at 10,250 rpm. And barely made it through the Indy 500-mile race. That "Cup engines used to run near 11,000 for six hours at say Talladega" is delusional. Fantasy!🤣

[@Bimmer_Bill]

@@DennisMerwood-xk8wpexactly, nascar and nhra is old fashioned tech. GM went out and eventually had to copy Ferrari.

[@Thors_Garage]

This motor used to produce 900+hp reliably. 750hp ain't shit for this motor.

[@DennisMerwood-xk8wp]

"This motor used to produce 900+hp reliably" - for maybe 5-hrs! LOL Two 500-mile races! 24-hrs is a lot longer than 5-hrs, Evan.

[@nihselauto]

Thats a rad engine. Hope it will fit on my Hummer. 😄

[@SAOProductions1955]

Hey GM! Let this guy and his team run the company and display how to market what the general public wants. And the first thing he'll do is get rid of the push for EV's and will tell the Brandon administration where they can shove those battery's.

[@ianwilliams4076]

the general public doesn't want this

[@SAOProductions1955]

@@ianwilliams4076 - I'm referring to the technological advancement of the internal combustion engine verses the push toward EV's and woke nonsense concerning man-made climate change that is behind it. It's no secret that Gm is heading aggressively in that direction and will even produce an EV Corvette but with the added option of the sound of a V-8. What an absurd and nonsensical approach is that, I ask you?

[@Naoj2024]

⁠@@ianwilliams4076THE GENERALS PUBLIC WOULD LOVE TO SEE SOMETHING LIKE THIS MACHINE TO BE AVAILABLE…! FORD HAS THE MUSTANG DOING PRETTY DARN WELL …! I THINK YOUR battery iz runun low…….. . . . . . . .🥱😵🤣

[@fultonauston6914]

I may be a ford guy but that is a mean SOB

[@JR-kr1lv]

Beautiful Race Car. I'm surprised to hear Cast iron Block with Aluminum Heads, went for Durability that's gonna last over Aluminum blocks if makes a mistake, Cast iron blocks have been around for ever and still being found in junkyards, if they turn over, chances are they will get it running. Doesn't warp as easy. Then only 2 valves in heads, surprised me there but went for Durability now. Like he said valve train goes 1st in Cup cars, still can make Horsepower if down right. Mr. Hendrick and ECR combined to build this engine for Lemans now, yeah they did a great job for GM, I wonder if cheaper to build a engine out of cast or aluminum? I'll say cast. Just a bit heavier, placed in right place with a 6 speed and they finished a long race with 3 divers that was a Nascar style car with headlights and tail light's that works and required to have. They made it threw that wicked rains also that took out many cars spinning in circles. That's scary when no control like that. Congrats to Caddy and to Corvette, great job and great job with Nascar in which they should of had a bigger reconciliation of racing 24 hour's and being able to add all parts and pieces needed, only thing that was ugly was the mirrors on the Nascar, I'm sure it had to do with winds coming by and not having the factory mirror to the CAMARO, I'm sure it had something to do with either bringing wind in as needed to cool down some.

[@oldblueaccord2629]

Its the motor specced for NASCAR racing here stateside. its been around quite a while in this form but restricted in the intake to keep the power down on large oval tracks. Guessing here unrestricted its making 650 hp.

[@TomTheCat.]

The fact that they had to really upgrade the engine, suspension, brakes etc. to handle a 24 hour race. For sure wasn’t a regular 3 hour or more nascar race.

[@griffinfaulkner3514]

Mainly the brakes, to be honest. The only change to the engine was the reduced redline, with the power difference more than made up for by the removal of the intake restrictors. Suspension was also largely unchanged, with a few modifications to provide additional clearance for the brakes.

[@BaffinSailor]

Anyone know where I could buy a diecast replica of this car anywhere?

[@mchristr]

This was a no-brainer. Lower the rpm to save the valve springs, and then test, test, test.

[@stevej00]

Can't wait

[@davidwhite2411]

I'm really curious what GM style lifters they went with in this R07 engine. Possibly the "caddy race lifters"? Would be awesome if you could find out. 😊

[@tadwiltman4875]

Probably jesel solid roller lifters... keyway, .904 diameter, etc... nothing GM about them

[@loganamurray64]

It'd surprise me if GM actually made them tbh

[@bull010163]

If it is going to compete in a class in the future then fuel consumption will need to improve, power is not an issue obviously. Had a far bigger fuel cell than anyone else in the race i believe. Just a talking point.

[@robert23497]

I'm gonna tell you what's SO GOOD about them racing in le mans. RELIABILITY!! They will spend less(wasted) time in the pits rebuilding motors AND transmissions than anyone they race against. Also, they don't have to count on reliability because.......they are fast enough to keep pace either way. Listen to the names. Childress. Earnhardt. This is a team that even the Germans wish they had. Party my friends and do it while drinking beers that are not produced by annheiser busch.

[@billpeirce7]

Where can I buy a G56 hat? Those rock!

[@joebaucom4537]

Great !

[@ajjskins]

Is he responsible for active fuel management/displacement on demand lifters is he who I have to blame?

[@KDcharger71]

He said it could easily have power added. Let this guy fix all the cup car engines.

[@richardlong6097]

Cup barely turns 8k RPM today, I'd like to know the exact rev limit on this thing. I imagine the midish 6k range similar to the old C6R vette.

[@Dr_Xyzt]

R07 heads have 2.2" intake valves. If you lose 10% of the valve size to the valve seat surface, you get 1.98" of flowing diameter at 125 CFM/in^2, so these heads flow something like 380 CFM. For 244 degrees of intake cam duration on a 48 ABDC IVC, it should have good intake air density out to 7200. After that, the curve goes sideways, 8700 being the declination point (the point where the engine definitely makes less power no matter what you do to the intake). I ran some calcs and the torque peak can tune somewhere between 5500 and 6100.

[@griffinfaulkner3514]

They were spinning it to just under 8k on the longest straight during the race, or just over 8k with a good draft.

[@adamUDavies]

That was very little info on the car Will we see it in the 24hrs of Daytona ?

[@DarylCook63]

Why does this guy remind me of Meatloaf? His looks, his voice, or his expertise? Hey, two out of three ain’t bad…😉😉

[@jimphares]

What transmission do you use? Is it a transaxle like a Corvette and does it use paddle shifters? TY Jim

[@kristoffermangila]

Seems like it's a transaxle and yes, it has paddle shifting.

[@Ezzell_]

Is it only one engine for the whol week of practice and the 24hr race or are they allowed to swap engines before the final race.

[@spdcrzy]

Pretty much the latter. One engine for practice, one for the race. But oftentimes smaller teams will go the entire week on just one engine, because the limitation isn't the size of the engine, it's usually the horsepower output - plus it's cheaper to have just one spare instead of two. So a lot of these engines are MASSIVELY overbuilt to the point where the engine itself blowing up during the race is extremely uncommon. But Le Mans is REALLY hard on everything else - transmission, brakes, suspension, aero, electronics, and especially the drivers themselves.

[@FCT8306onTwoWheels]

i love it :)

[@mariaamaral2069]

Festa junina a maior

[@mitchellsteindler]

Man I wish he was more open with the details. I'm not sure what he has to lose by disclosing them.

[@RetardsOfPaloAlto]

It’s still GM funded research, Ford just unveiled their new GT3 entry to run Le Mans next year for example

[@mitchellsteindler]

@Alex Barthelemy I don't think giving some basic engine specs would be anything groundbreaking but that's understanable.

[@weofnjieofing]

Love it! ITB’s!! Next needs to be DOHC 32 valve so they can raise the rev ceiling to 10000rpms!

[@stephenpage-murray7226]

Cup engines used to run near 11,000. 8,000 is easy

[@thethirdman225]

The actual interview starts when the salivating finishes at about 0:36

[@Adamu98]

I thought endurance racing had a 335 cubic inch max displacement for na. Why the nascar was allowed to use 358 ci?

[@paulchilders9969]

They were in a special class for experimental cars. Only 1 car, so they weren't really racing anyone.

[@Raul619Meza]

Why can't Nascar make this the new Nascar racecar? This is way better than the current Nascar racecars

[@ellieprice3396]

Rules----

[@rcpilot179]

Maybe Nascar should consider some endurance events.

[@432htz3]

Didnt realise meatloaf tuned engines !

[@williamholst928]

Why use a cast iron block and not aluminum ? Or does NASCAR not allow aluminum blocks .

[@viperford6840]

Aluminum would melt

[@cjmunnee3356]

A cast aluminum block isn't stiff enough and would distort, letting the cylinders get out of round. And there's no way NASCAR would allow billet 6061 blocks.

[@velvetjones1856]

Wondering how the gearbox will hold up. The brakes will need to be changed a few times with this heavy car.

[@charlesanzalone5846]

Yes all cars change brakes at lemans but the Camaro will take 5 minutes the other cars take less time, these are also carbon fiber brakes

[@Jimmyk63]

They should have used the v8 supercar brakes setup for quick change half the time.

[@robertfowler217]

How much HP does the engine have

[@viperford6840]

Bout 850

[@DennisMerwood-xk8wp]

@@viperford6840 hahahhaha

[@SJR_Media_Group]

Any chance to get that engine in crate form?

[@aeolus75]

"2 Valves pushrod" watch and learn F1 teams 😉

[@johnjones928]

Learn what? You do realize F1 had engines half that size making more HP than that one did unrestricted, without turbos.

[@boobsball]

"Take some of that restriction away to be able to easily get the extra power" something that is apparently too complex for nascar to do to heightened their sport

[@848evo4]

it's not that nascar can't take away restrictions, it's one of the ways they reduce the speed to aid in safety. the xfinity cars were faster then the cup cars at Daytona this year but you couldn't see the difference watching the race

[@stephenpage-murray7226]

Purposely restricted to reduce power/speed.

[@deputy_Nico]

WTF IS A KILOMETER RAHHHHHHHHHHHHHHHHH🦅🦅🦅🦅🦅

[@tRuthsPeaker840]

But you didn't ask how much power baby?

[@coliimusic]

So are we all agreeing that it's sitting around 700-750hp since they don't wanna reveal anything?

[@viperford6840]

It's over 850 man 😅

[@MaxVerslappin48]

That would be my guess. Considering he didnt say they took all the restrictions away. As nascar used to run 900 plus

[@DennisMerwood-xk8wp]

@@MaxVerslappin48 The Yank bovine excrement is getting deeper every video! 900 plus - for 30-minutes! Kaboom!

[@jacksonhowell7242]

Yea probably about 750. Cup cars make 750 with the restrictor plate on. For this car they took the restrictor plate off but turned the RPMs way down. So it's probably making about the same power as a cup car but with way less RPM.

[@DennisMerwood-xk8wp]

@@jacksonhowell7242 How many BHP you reckon the Ferrari engine is making? And what's the comparable BHP/liter? The old iron block V8 is going to look pretty sad! You can't turn a sow's ear into a silk purse no matter how many Yanky dollars you throw at it.

[@WildEngineering]

AMERICA FUCK YEAAA

[@DennisMerwood-xk8wp]

>5.0-liter engine vs 3.0-liter engines! AMERICA FUCK YEAAA

[@WildEngineering]

@@DennisMerwood-xk8wp explain the pit stop competition with that logic too

[@DennisMerwood-xk8wp]

@@WildEngineering Huh?

[@trenton.tchannel1810]

Those welds though 🥹

[@madmax2069]

What are you even talking about

[@trenton.tchannel1810]

@@madmax2069 In the engine Bay on the front corner. The welding of the metal is done nicely

[@KirbyGriffin7]

Wow, 2 valve pushrod

[@Panthercholo]

❤

[@5point4LSX]

They gave Garage 56 about the same amount of air time as the 9-year old in the stands picking his nose. I hope they are eating their words watching the Nascar outrun those fancy European factory entries.

[@jrand2148]

Basically, we scienced the snot out of this thing

[@DennisMerwood-xk8wp]

Sciencing the snot out of a sow - still leaves you with a sow JR

[@byates59]

Go get um Chevrolet!

[@ba55bar]

I know he means America but at least 24 countries have red, white and blue flags

[@nitrozack3062]

So sick

[@codymoe4986]

Hope you're feeling better!

[@nitrozack3062]

@@codymoe4986 lol

[@taylorstuckmeyer1489]

Bow tie boys

[@wouldntyouliketoknow1le]

Too bad this motor isn’t in the collector’s edition.

[@jorgecouto521]

👌🇺🇲🇵🇹👍

[@491Mystic]

He say a iron block

[@cjmunnee3356]

Yeah. Probably compacted graphite iron (CGI). Ligh enough cast aluminum blocks aren't stiff enough for the combination of RPM and compression, so the cylinders will distort. It'd be hilarious if NASCAR would allow machined 6061 blocks, but that gets pricey fast.

[@spudsmckenzie2853]

I want one please please please

[@lll9416]

Sooo what you're sayin is, make a 9000rpm Cup engine but dont hold it at 9500 rpm for 500 miles, shift at 7500 !

[@viperford6840]

9k, go like hell

[@DennisMerwood-xk8wp]

@@viperford6840 You nailed it L LL😆

[@dconkey1]

The money spent on just the reliability of the power train has to be staggering.

[@DennisMerwood-xk8wp]

Yeah, they could have built a "real" racing engine for the money they threw at this engine - that has no future in any GM cars. How about spending GM money on engines that will not see you begging for a taxpayer bailout again Mary

[@oddball0045]

​@@DennisMerwood-xk8wpGM is spending 850 million on a 6th gen pushrod 2 valve per cylinder V8, I don't think they would be spending all that money for an "outdated" OHV V8 architecture while only spending some 100 million on EV tooling if they didn't think these engines didnt have a future in GM. The hybrid Corvette went back to the LT2 pushrod engine instead of the high revving LT6 32 valve DOHC. Oh and all Chevrolet OHV V8s still use the same bell housing bolt pattern from the gen 1 small blocks from 1955. Long live pushrod V8s!

[@DennisMerwood-xk8wp]

@@oddball0045 I've no problem with any of what you typed my man. Mum and Pop do not need a DOHC cam engine. Except you left out the part about lining up at the gas station for a mile waiting to get your $20.00 per gallon gas! Rationed to 10 gallons per week. That's if there is any gas left for you after the US military gets theirs first. When the Saudis and the Russians are the only ones left with cheap gas my friend the USA might just be in deep doo doo.

[@outfield1988]

Wish GM engine would beat Ford power.

[@Cycle9568]

He did not give any actual specs or changes made to the motor. Haha.

[@AmericanBusinessman422]

This guy didn't know a thing...

[@MrFritzzz666]

Pony cars, are not NASCAR. Sedans are what is NASCAR.

[@petsur]

Small block Chevy!

[@barbwire4879]

GO CHEVY GO. (((( 🇺🇸 ))))

[@ATEC101]

Tell us the real numbers for FFS.

[@DennisMerwood-xk8wp]

You are nuts Steve! Which Team manager would reveal how much power his engine is making! Thats like Zelenskyy telling the Ruskies when he is going to start his counteroffensive! LOL