SUPERCHARGED BBC PUMP GAS POWER (900 HP ON 91 OCTANE)

[@justinfee819]

Finally big block Chevy stuff 😀

[@Paulster2]

I love how "Dude" was standing in the background with his Double Gulp while you all were trying to get the engine up on the dyno ... I can see him now, "No, you should be doing it this way ... No, that way ..." Great help "Dude". :o)

[@richardholdener1727]

#SUPERVISOR

[@Paulster2]

@@richardholdener1727 - BWAHAHAHAHAHAHA!! LOL :o)

[@kennethpowers8995]

Most likely his engine and he’s not allowed to touch the equipment at WestTech. Our shop is the same way, customers can’t load their own vehicles on our dyno equipment.

[@chrisyanez2299]

Heck yeah .. my homie James Bostick making power . That’s awesome you featured him Richard . Thank you sir for that . He’s a great person and unbelievable machinist and builder .

[@jayare4472]

Live the flames 🔥 coming out the exhaust 😂

[@johnfry9010]

You can make a ton of power with a small block " BUT " , nothing sounds like a Big Block .

[@3Repete]

Love this. I am glad you mentioned oil level. Owner and builder might even take out a touch more oil because there can be a couple of degrees of running angle in the boat. I know it's not much, but windage is no good. Hopefully there is a crank scraper and baffles in that pan.
I'd not even measure the oil by quarts but by how it sits on a dipstick. Stick references the crank, and the pan was custom so it would take some trial & error to find the happy spot. Also an engine like that will have remote filtering and possibly have oil cooling once installed, so quantity becomes relative and goes back to distance down from the crank.
You call the cam mild. It's a boat, not a 1/4 mile car. I'm guessing it's more of a long life boost cam. And low compression is a good thing when you can add what boost you decide. Compression coming in through the top!
I so want to do a marine big block!

[@pmd7771969]

Good job rich........
Bloodviking

[@pmd7771969]

Blowers make power from a low rpm. It bears turbos in several ways. No turbo lag. But noisier. You can drill a few set of holes, paired a ross from each side of the pully to quiet the air and don't use any gear drive.
Bv engine builder

[@Bradley_Clark]

Thumbed from the roots big block gang. Old school gettin' it done.

[@pmd7771969]

That oil pan is ridiculous. W o m
Bv

[@xozindustries7451]

Nice! That’s almost the same motor I have! I’m at 9.5 to 1 compression, same cam, and AFR 357’s, B&M Megablower and holley dominator Multi port EFI that’s about the horsepower I was shooting for to get my 78 firebird in the 9’s with a stick shift

[@grumpysteelman]

9’s on a stick shift, pump gas, BBC, late 70s Pontiac. Curious what trans and rear end ratio you’re running.
Either way - you like doing things the hard way, dontcha? 😉

[@xozindustries7451]

@@grumpysteelman yes, it’s a Doug Nash racing five speed, so it’s a dog box transmission, same as a G-Force. It’s got a low first gear and a 1:1 fifth so I have A 3.23 rear end gear in a Ford 9” 35 spline rear with Detroit locker and Calvert racing leaf springs on sliders. Look at the build on Instagram, and yes I like doing shit the hard way

[@grumpysteelman]

@@xozindustries7451 - that’s super cool, and honestly, I do shit my way whether it’s hard or not, so much respect.
Suffice it to say that there are guys that couldn’t touch the 9s on a Powerglide with a transbrake even on a blown rat sucking down C-16.
I am certain you’ve hurt some feelings, driving around those folks, and having them (finally) catch up with you in the lanes only to spot the three pedals. 😂😂😂

[@xozindustries7451]

@@grumpysteelman ya, I’m building it to be a drag week car

[@eddieburch6903]

This video has to be older than a year. There's a guy with jean shorts and work boots. 90s stuff right there! Lol

[@richardholdener1727]

fashion never goes out of style

[@evanarthur7535]

91 octane for the win! Really want to see more pump gas testing using a knock detector.

[@oldschoolmotorsickle]

Richard and the guys get the motors going pretty good, but they don’t do knock sensors. They use conservative ignition timing figures instead.
That BBC makes so much mechanical thrash that you couldn’t run an electronic knock sensor anyway.

[@evanarthur7535]

@@oldschoolmotorsickle I know that knock sensors are sensitive to noise. I was thinking maybe use a standalone knock detector like the J&S one that has adjustable sensitivity for data logging but not for active timing control.

[@oldschoolmotorsickle]

I hear you. I asked him basically the same question, and he says they don’t mess with it. I was somewhat surprised, but they use the parameters that they do track to get a decent result.

[@bdugle1]

Seems like a really mild cam for a big block, but good heads don’t need as much cam. Very cool boat engine!

[@randallmason9687]

Look out! Extended cut club remix!! Big block dance party!!!

[@richardholdener1727]

YA BABY-HOUSE IN THE HAUS

[@Adrianzx]

Really working that sound bite

[@pmd7771969]

Stepped headers, Rich
Bv

[@pmd7771969]

It could be made to run for hours as long as you don't over rev it. The 6k mark sounds good at a steady pace.

[@oldschoolmotorsickle]

Nice motor. Amazing how quickly you can turn a boat motor into a boat anchor though.

[@drivinwithdrew7676]

Gosh darn she had 2ft flames coming out of the headers, first time I think I’ve noticed that with a blower and pump gas!

[@CarsandCats]

Had to be very rich so it was burning in the pipes.

[@marcusking9078]

Richard any chance you will build and test a 396 ? I think alot of people would love to see a 396 block with a 454 crank test .

[@CarsandCats]

Nice to see a decent blower on top. Would like to see a before and after with the intercooler.

[@pmd7771969]

You did good though rich.

[@adambergendorff2702]

Not even a Chevy fan, but if you dont like this there is something wrong with you! Never thought about the hydraulic rollers not working correctly, only about the windage.

[@akaitv6606]

Should make 1000 hp with Aussie 98 octane

[@roykrossin8343]

Love to see a durability test between blown and turbos. My thinking says blown harmonics contribute to a shorter life span

[@JimBronson]

dig the MMR shirt

[@timothykrivinko4060]

How about testing blower sizes?? 6-71 vs 8-71 vs 10-71....ect on same long block....????

[@deanbryan3034]

Good video Richard thanks, what did I learn? Letting a quart of oil out of you pan is the cheapest horsepower!

[@richardholdener1727]

it works

[@deanbryan3034]

@@richardholdener1727 if 1 quart is good 2 must be better right lol I was surprised but it makes sense even if the lifters lose oil pressure they will lose lift

[@mobeydick37]

@@richardholdener1727 On an engine stand, yes, in a boat it could easily starve for oil [depending on trim] running before planning out! I would NOT recommend taking oil out for power on marine application!

[@curvs4me]

The beast! 540 super is the boat engine for a really good reason. Takes a lickin' and keeps on tickin'. Sorry Timex, you haven't used it since I was a kid. So 70s??

[@pmd7771969]

You can make more with 2 Dom. Carbs and if the 377 afr heads with clear the bore at the valves.
Bv

[@tomstech4390]

I'd love to see this architecture morphed into a 60degree v12 dohc, 50% more displacement (12.6liters) with better balancing while also being about the same width as this setup.
Joy of 4v pentroof style heads.. central spark plug.. more airflow for a given amount of lift. Heck potentially more valve-cyl clearance (due to valves being smaller and potentially intruding into the deck less at peak lift).
Before some get all defensive saying "but ohv is more compact" were talking about a blown big block here not a lawnmower.
Edit: the only thing I love more than a blown big block is a blown better and bigger block.
That random screeching in the music has gotta go through, sounds like an audio problem.

[@177SCmaro]

You could do all that and i'm sure it'd make a lot of power. Or you can just get a bigger big block.

[@bcbloc02]

Just get a 1710 Allison. 3000hp for days...................... :-)

[@tomstech4390]

@@177SCmaro you could do that, or you could get a bigger dohc v12.
Turns out "getting bigger" isn't some sort of exclusive technology.

[@tomstech4390]

@@bcbloc02 SOLD (although something a little more modern would have benefits).

[@177SCmaro]

@@tomstech4390
I'm pretty sure just getting a bigger big block is easier then completely reengineering a big block Chevy, which is a 90 degree cam in block v8, into a 60 degree dohc v12.
But hey, knock yourself out. I'm a fan of weirdness. Just look at my car on my channel.

[@chipcurrey653]

This is the first time I've really jammed out to the Holdener Beat

[@pmd7771969]

Those blower manifold coolers can cost 5k

[@MrErnest18045]

Do 454 please

[@trdscfjc]

Really wish we could of seen the boost curve, what was peak boost?

[@richardholdener1727]

7.8 PSI

[@marcusking9078]

Where is the LOVE button?

[@mbailey7701]

Hey how did you get that out of my car put it back right now!

[@unclesquirrel6951]

Personally I blame squirrels

[@Kstang09]

@@bigboreracing356 Naw. It's definitely the squirrels. Parasitic, AND furry.

[@unclesquirrel6951]

@@bigboreracing356 👉🏻🐿✅

[@DBSSTEELER]

Hey Richard,
If you add spacers between the blower and the carburetors on that type of setup does it have any effect on total power produced or the curve?

[@richardholdener1727]

probably not

[@DBSSTEELER]

@@richardholdener1727
Probably not? What is that something you ACTUALLY HAVENT TESTED? The universe is spinning out of kilter now….

[@DuneWest]

I agree----especially on a "Roots" design supercharger where heat soak is a factor. The blower case on a Roots becomes pretty warm thus effecting the temps of the carbs. Horsepower may or may not be effected from the addition of a carb spacer, but a phenolic carb spacer will help the carb(s) from heating soaking and thus the fuel from getting to hot as well. Certainly food for thought.

[@deansciortino6425]

No AFR in collector? Should have all 8 in pipes, especially for endurance use. Tune for power and saftey.

[@richardholdener1727]

we can and do run 8 sensors in the headers when necessary-not necessary on this motor

[@deansciortino6425]

Please explain why not in pump gas, roots blown, under load, the worst conditions for a roots blown engine. How did you tune it?

[@chrishambling1981]

Anyone know best weight oil to use,have 700 hp BBC 671 blower drive on the street ,idle oil pressure when hot at idle is 20psi goes to 40 when driving ,know use 20/50 would 20/40 be better thx

[@richardholdener1727]

20/50 IS FINE

[@jokestergaming]

Hey I plan on doing a lq9 408 build and I really would like to see a build of that with a Texas speed giant cam if that would be okay

[@dennisford2000]

So how much is lost with wet manifolds

[@richardholdener1727]

lots

[@dennisford2000]

@@richardholdener1727 my pals boat has turbo Cummins 5.9 300 wet and by 2800.

[@andy347495]

Sweeeet!

[@pmd7771969]

Dom 1150s

[@pleite567]

Why 91? E85/e90 is way more exciting

[@MrBlackbutang]

Not any problem for a Ford 460 as block is taller. Lol

[@f-bodyjon2189]

Richard, have you heard that bell noise on the techno beats? Sounds annoying and out of place.
The beginning is fine but it probably starts doing that weird sound after like 30sec-1min.

[@richardholdener1727]

its the warning buzzer

[@f-bodyjon2189]

@@richardholdener1727 hahahaha that “ding ding” noise throws me off every time 😂

[@pmd7771969]

I could have made more
Bloodviking

[@akaitv6606]

91 95 98 e85 at alot of gas stations in Australia, not sure why you would want to de tune it to run 91 , you might aswell run it on kerosene .

[@evanarthur7535]

91 (Ron+Mon/2) is the highest octane in California. E85 is available at some stations but not in abundance.

[@richardholdener1727]

RATING IS DIFFERENT HERE IN THE STATES-BUT 91 IS PREMIUM (WE DO HAVE E85 TO)

[@chadausburn4832]

It’s also in a boat and fuel choices on the lake or river are limited. In a drag car you’d bring your own fuel anyway.

[@taylorsrus9543]

E-85 in a boat could be a really bad idea. You might need a 1000-1500+ gallon tank depending on the boat.

[@douglaswilson3978]

How much timing..🥰😎

[@richardholdener1727]

28

[@pmd7771969]

3 to 5k blower cooler

[@scottm7341]

Why did they use a locked out distributor? That just makes the engine harder to start, especially when hot.

[@DBSSTEELER]

That’s not an issue on the dyno. The locked out distributor allows them to know exactly what the timing is for data collection.

[@jrdmotorsports9718]

That's only and issue when an engine produces too much cylinder pressure at cranking speeds. Usually on stock or slightly modified engines, with short valve events, too much compression, and big stock starters that can't handle heat. Not the case in most modified engines, especially with cams this size and 8.25 compression.

[@richardholdener1727]

dyno has two starters

[@taylorsrus9543]

Its low compression. Wont be hard. This is a pretty old school design, everything use to be this way if you were 'fast'. I am surprised it doesnt have a vertex in it.

[@mitchellferre1652]

🤩👍

[@Terryray123]

With a BW s500 turbo how much hp could you make?

[@richardholdener1727]

WHAT TRIM?

[@Terryray123]

@@richardholdener1727 I'm just split balling here. Whatever trim works.

[@jamesgeorge4874]

S594SX-E

[@thatautogarage3644]

The guy in the white tank top looks like he likes wasting people’s time.

[@CarsandCats]

I am betting he is the guy that paid for the motor.

[@thatautogarage3644]

I bet you’re right and I didn’t even think of that. The posture just remind me of several people I’ve had to run off for distracting my guys.

[@CarsandCats]

What was the AFR at torque peak and horsepower peak?

[@richardholdener1727]

11.6

[@Luminaring]

Is the calculated NA Hp about 600hp, if 7-8 lbs of boost gives 900hp?

[@vech400]

I’d guess more like at least 650, it takes some power to turn the blower(parasitic loses). 600 would be close with turbo’s

[@richardholdener1727]

not with a blower

[@177SCmaro]

I'm pretty sure running a big block on boost is the engine equivalent of playing on recruit difficulty.

[@stevestauff2220]

Sweet motor what a waste to put it in a boat

[@jrdmotorsports9718]

Why a waste? Are you aware of the torque needed in a race boat to spin a little prop that has to cut through water? Why do you think they all run blowers?

[@stevestauff2220]

@@jrdmotorsports9718 simply I like race cars and trucks. Not a boat in general fan lol I am shur it is great for a boat. Just rather see it in a cool car

[@jrdmotorsports9718]

@@stevestauff2220 I get it. I'm a Street car /drag car guy, was never into boats either. As a builder though, I see and understand why. In my world, power is power, for cars, trucks or even boats 🤘

[@88_turbo_fox73]

Come on with the music, I like watching but it gets annoying lol

[@416shovel]

Are we almost done with the techno music intro though? Maybe?

[@mobeydick37]

Hey Idiots, don't go and lower engine oil level on your power boat to make horse power. You could easily starve the engine of oil during launch.

[@pmd7771969]

Awful beeping

[@richardscarlett7942]

900 HP...and it only took 9K$$ to do it lol.

[@madmod]

Pretty reasonable for a pump gas combo

[@jrdmotorsports9718]

Built right, it'll make 900+ and live a long time. Unlike a junkyard LS with turbos that you are probably comparing it to, that are like Bic lighters. How much you think it costs to replace them every 6 months?

[@madmod]

@@jrdmotorsports9718 I know a plethora of racers who race full seasons competitively on $240 longblocks. At a cost of $2499 for a 99-06 5.3 crate engine new, Id say its still pretty affordable.

[@madmod]

@@jrdmotorsports9718 Nothing like comparing apples to oranges just because they are fruit

[@richardscarlett7942]

@@jrdmotorsports9718 if you are having to replace a turbo every 6 months, you need to stop building engines