THROWBACK: Talking Tech - V8 Supercar vs V8 Sprintcar engine

Ken McNamara, owner of KRE Race Engines, does a comparison of a V8 Supercar and the V8 Sprintcar engine.

[@blazingsilver1825]

All I'm going to say, is until you've watched a sprint car race, and smelled the air. You haven't lived. It's such a sweet and perfect smell

[@jimstorjohann1334]

I know the smell.

[@seancoats1241]

Yes that is my favorite sound and smell but have you ever been in the pits at top fuel drag event when they start the engine to test it? The Nitro fuel will bring you to snot and tears. One of the best experiences of my life 😂 my buddys dad came up to me a was like "do you want your face to melt off" and was like lol fuck yea

[@jayer-su3hu]

Pretty interesting. Here in the US we don't get to see a ton of the V8 Supercars and I have never seen their engines before. Cool.....

[@PUNCHARD800ftlb]

sprintcar engines are so functional and yet look like sculptured art

[@frfrpr]

Who he is and what he's saying is far more important than hearing some distracting music in the background

[@ruthlessreid9172]

Beautiful engines love the intakes.

[@marklowe7431]

Both amazing engineering in their own ways. Building 630hp is no big deal these days but doing it under 7500rpm and with 5.0L while having plenty of torque at least in the mids up on an NA engine is very difficult. Clever people.

[@ZacLowing]

@jonny j I've been thinking the same, materials tell the limit, the rest is to fit it the best you can all under that limit. Now, if you just raise the material limits to lets say, and it can take the stress 50,000 rpm, think of how small and light the rest could be for the same power. Materials science really pays off!

[@Slaktrax]

Don't forget they have to run on pump fuel, a series control camshaft and 10.5:1 CR, as well as last for lot more than one race.

[@ajv802]

You should do a video on the SM Motorsports turbo 202 carby torana daily driver. Steve Josiah extracts 500rwhp and 800ib/ft of torque. 175mph theough the chase with 13inch diameter rims. It’s just a nice car to drive.

[@Kodiak212Dozer]

Next video should be how one would manage to get that sprint motor into a road car like, hmmm my 180sx?

[@SKR1967]

A guy had one in a LC XU1 Torana in the 80's. Was 'off tap'! Would do these enormous power skids past our party house. Yes, they were the days!

[@bobwire3310]

NOICE........... 👍

[@mikebrooka9395]

Not to too my horn, what I learned from racing mowers did get put in to my street cars and the drag cars. One has to crawl so he can walk and walk before he can run. Coatings were a cheap boomtown for me and easy to order. Now I have have to send the parts to some place and pay$$$ to have these parts prepared and coated... 😒. Help!!!

[@daffy_6632]

I bet KRE could do a V8 Supercar motor for the same price as a sprint car motor using generic parts from the USA and be lighter as well. Who cares if the whole grid had the same motor, an alloy block V8 would sound awesome.

[@LS2MGB]

Would sound exactly the same as a cast iron block. What the block is made out of won't change the sound.

[@marklowe7431]

It's called parity.

[@chinomeehan9061]

LS2MGB cast iron block sounds much deeper and grunty. Alloy block sounds hollow and tinny

[@Slaktrax]

@@chinomeehan9061 Whaat?

[@bobwire3310]

Look @ them TruMPET'S 🔥🔥🔥🔥🤟🤟🤟🤟🤟🤟🤟🤟🤟

[@stevedriver1476]

I notice the V8 touring car engine has a cast iron block and an ENGINE NUMBER PAD front left, sounds stupid but is that a GM BowTie Sportsman Block that GM sells over the counter in the U,S for around $3500 bare. Dart and Brodix Cast iron Blocks are only $1750 U.S and i doubt if they use these.

[@timjohnun4297]

I thought I had figured out what block and heads they were using but apparently they use castings that are unique to supercars, and I'm told are basically Ford Windsor clones. I can't get anyone to confirm it, but if true, supercars are an even bigger joke than I first thought.

[@Johnnycdrums]

What's the reasoning for 410 c.i.? Just a number they pulled out of their ass when they wrote the rules?

[@hyeden88]

Oringinaly sprintcars ran Chev iron block engines 360 cubic inches iron block chevy motor called a smal block .410 cubic inches is from a big block Chev engine.But now block is alloy but cubic inches based on oringinal Chev motor

[@alanjanderson9789]

It came in when the 400ci small block chev came out there was no way to tell what Ci someone was running other than tearing it down at the tracks

[@bobwire3310]

Put dat in the Grocery getter

[@DennisMook-ky6lx]

630hp wtf i always thought they were pushing 1000 plus hp more

[@fabi57iamracer]

The nascar super v8 cars Australia

[@glennd11r]

At least the ford Supercars have an engine that actually resembles a small block ford v8, same can’t be sed for the Holden guys.

[@stellingbanjodude]

GJ Walker it’s an sb2 which is basically a small block Chevy with splayed valves

[@clayz1]

Virtual thumbs down for the background musak. Really excellent vid OTHERWISE.

[@dillansmith8853]

Ok Aluminium block

[@gavinr1834]

great info but the background music is ANNOYING!

[@daleolson3506]

Back round noise junked video

[@dsfs17987]

they must be running a cartel there with those engines, 120k for a pretty much standardised 5l v8 making so little power and basically no exotic parts in it, CNC machining isn't that expensive these days so the "custom" isn't nearly as rare as it used to be

[@Hapkido82AUS]

jz1199 They are more like 600 hp at the wheels. They always down play the engine HP level. Whats more impressive is 530+ ftlbs of torque, which nails you to the seat all the way past 200kph. Go for a ride in one, they are very impressive 😉

[@72troy455]

120K will buy alot of horsepower.

[@joostin123]

Think about how reliable they are, the torque they get in the midrange and how efficient they are for what they are

[@justinmilby4552]

Yea super car engines don't make power for few seconds they do it for long periods of time and the downshifting and upshifting means these engines are super reliable under extreme conditions for long periods of time. Sprint or dirt car stuff is like drag racing ur not shifting like road racing and ur constantly spinning and trying to control it. 120k because of the reliability of the components in that engine I believe. 60 for Sprint cause it wouldn't last long in super v8 car its not built for endurance of that level

[@VicinalElk44104]

@@justinmilby4552 Dirt track racing, you're constantly damn near at redline if not on redline, only letting out slightly to start the turns. It's not like drag racing, where you're only in it for 10 seconds on average. They're running constantly at or near redline for long durations. Upshifting and downshifting a supercar doesn't mean shit to be fair. No offense to your beliefs. I could to the same in my mom's Camaro, which produces about as much to the wheels as the supercar does, and still be able to live for almost 200k miles. And guess what? When it breaks, I can spend so much less money to get an engine replaced for it and be on my merry way. Super car engines don't need to be as expensive as they are. They really don't. They're made from the same materials as most other decently priced engines in performance cars from other companies. Sure, they're hand assembled, but to be fair, a lot of higher performance engines from cheaper cars are hand assembled too. There's really no leg left to stand on to be honest.

[@causeimbatmaaan]

Guy doesn't know what a cubic inch is. 410ci is not 7 liters.

[@mareksumguy1887]

+causeimbatmaaan You said it, girlfriend!.

[@causeimbatmaaan]

Marek Sumguy Hmmmmmmm

[@fabi57iamracer]

410 ci = 6.6 litres

[@fabi57iamracer]

410 ci = 6.6 litres

[@mareksumguy1887]

Its exactly 6.7 liters. 402 is 6.6

[@geraldswain3259]

This is so crude compared with top hole bike engine's which will produce 400 hundred hp per litre no problem!!!...bikes are so far in front on tech it's untrue, a v8 busa would murder this shit out of this crap ,at half the money !!!.

[@cmsracing]

I guess I will have to stick to my 800 hp. $2,000 home made drags race engine on my pay!

[@ldnwholesale8552]

Yeah right,,, 800 hp for $2000. Turbo with a life expectancy of about 2 min. I have driven by them time after time with 550hp for about 12k . That does 2500km between rebuilds on a road race car

[@marklowe7431]

Better known as a hand grenade.

[@cmsracing]

Well if last 2 min. at 8 sec. at a time, that's good!

[@cmsracing]

How did you know? It went off twice last year!

[@marklowe7431]

cmsracing I'm not sure what you meant. My Sure anyone can build 600-650hp even NA with 5 litres for 10-15k but will it make that under 7500, pull out of corners and sit on 5000-7500 all day without failure and using more fuel than your competitor. I recall races where half a litre of fuel won or lost the race.

[@vinnie00078]

Any bone head can make power with boost !

[@fjfjfjffjfjfjjf3326]

Anyway crimsafe is a shit product, corrosion where the screws go in,use vice grips on the key cylinder,wiggle back and forth,snap you're in,

[@rhodesta]

ummm... I have NEVER seen a sprintcar do a two lap qualify - even for a national championship. Ive seen qualifying over races - points from the first two sets your grid position in the feature... if you make it to the feature... and thats about it.

[@james6m]

... World of outlaws have only been doing 2 lap qualifing since 78

[@rhodesta]

james6m well that explains that then since world of outlaws only comes to one track in new zealand where i live and its at the opposite end of the country to me.

[@backcountryme]

Every major sanctioning body in the US has a time trial. That is how they stage for the heats. Then the heats stage for the features.

[@trevorspeedy6333]

880 hp for $55,000 and $650 hp for $120,000. That’s why V8 supercar regulations are so stupid. V8 supercar costs are ridiculous, imagine V8 supercars going to a Dart block and heads and a 4 barrel injector body, you could save a fortune in engine alone

[@ProfessorIgor]

A 410 sprint car engine isn't going to live through a 2 hour race.