JUNKYARD TWIN TURBO BIG BLOCKS-HOW MUCH BOOST DOES IT TAKE TO MAKE 1000 HP? 3 DIFFERENT BBC COMBOS

[@elmerfudpucker3204]

I argued this with another commenter on one of your earlier vids. There is no getting around it, there is no replacement for displacement. Everything that can be done to a smaller engine(LS), can be done to a larger one, and less hammering with any power adders will get you better results. Boost works on everything, I agree. But you have to use more boost on smaller engines than on larger ones, to get the same results, period.

[@escuelaviejafarms]

That graph on the 454 with the XE268H cam is the very reason why I chose to install that cam in my tall deck 427, because adding the Littlefield 8-71 is going to make foundation moving power for my tow truck. I wasn't wrong with my cam choice.

[@steveadams5190]

I have several BBC's. Now I know just what to do with them!!! 😎 LOVE your videos! Keep up the fantastic work! Thank you!

[@Gameplay-3D]

I was just looking back at your bbc video's and this popped up. And it answered all my questions. Lol

[@Gameplay-3D]

Until I looked back at the cylinder head shootout and seen how expensive those heads are. budget friendly options with similar specs like those afr's

[@minivanin]

ill never forget an old friend had a done up motor with an extensively ported head and he scattered it...the new motor had a stock port head. I asked why not port it? He said...its easier and cheaper to just run more boost instead. He is not wrong.

[@lerabidheavy7437]

It is however by porting the head with turbos anyways less boost is needed to make the same power which means you can reduce lag and have a better low end due to the turbos not needing to spool as high and more exhaust flow to the turbine also means faster spool even with cams made for turbos you can make pretty big numbers as some guy with a ford 3 valve made just under 400hp naturally aspirated just by getting headwork with new tune and fuel system

[@thepowershift]

This is so dang good! That Gen 5 made well over 1200 hp at 29 psi with a tiny flat tappet and 7 to 1 compression! Way better than the Big Bang 6.0 LS.

[@richardholdener1727]

HOW IS 1200 HP WAY BETTER THAN 1543 HP?

[@thepowershift]

It was way tamer than that 6.0 and the 454 is way easier to find and cheaper when you do. My point is that people act as though the LS is the second coming. But in reality most of the miscle car era engines are just as capable.

[@dinger4480]

@@richardholdener1727 whats the weight difference and cost of an l.s. that makes 1500 to the big block at 29#?

[@shadjohnsen8143]

@@richardholdener1727 Would be it feasible to run twin GT45’s on a stock 8:1 460 through the stock manifolds? Or would it be better to run just one? I was concerned about the back pressure.

[@GIGABACHI]

I'll take high boost, low compression (8.5:1) ALL DAY, EVERYDAY. More margin for error if starting low. Step up your game later as $ permits (lighter, higher flow, better heat transfer aluminium heads, roller valve train, intake, EFI, et al).

[@boostedmopar1]

We really needed to see the BPE540 at 29 psi like the first combo 😉

[@ralphgregory7616]

Yes please 🤠

[@d-phoenix2198]

I mean it made 42,4 horsepower per psi at 15.5 psi so at 29 it should theoretically make 1.878 so rounding it up to 1900hp!

[@impalakevin]

Awesome!!! I can’t wait for some more BPE 540 testing

[@richardholdener1727]

those vids are up-nitrous, 6-71 and procharger

[@impalakevin]

@@richardholdener1727 I meant like 540 turbo combination changes. Fuel/cam/turbos/ etc etc

[@terrybaltimore1542]

Thank you for finally putting out this video.

[@MrBlackbutang]

Love 2nd cam grind ❤❤❤❤❤!😊

[@joshjenkins3815]

Finally some fuel injected 454 BBC love! LOVE IT!

[@Wickhaven1]

I have the same cam in my Pontiac xe268 as the first combo and my car produces crazy power (20 psi) and hardly ever gets past 5100 rpm. 🤔 Pulling cam tomorrow!!!!!

[@georgemontgomery9422]

I like street drivability, so octane availability rules the decision. A low compression 632 with as much boost 91 octane will safely allow.

[@gumballer133]

Worst part is the Tall deck doesn't fit in everything. Makes it even more complicated.

[@adventuresofabbott4374]

The gorilla in room is the ability to buy high octane fuel if you go #1. Or namely cheap e85. If you cant get e85, buying parts might have a better ROI to lower the detonation potential vs buying race gas all the time.

[@turkeyboyjh1]

Water methanol makes 1000 plus possible on Cali 91 with boost on a sunny 109 degree day, aluminum heads and a low coolant temp a are a huge help with boost and detonation too

[@russelljackson7034]

Right on

[@ChurchAutoTest]

Just watched the engine masters episode last night with the carb hat testing. And here you are posting a build using one. Glad I never had to tune those things, because it looks like a royal mess.

[@hardtophoggy]

Hey Richard live your work i would love to see you do a video on the fuel injected Buick/GM 3800 v6 but I would really love to see if you could do away with all the fuel injection and coil packs and run it on a carburettor😁

[@pimpnick4920]

As a time traveler, he did it. I watched them a few days ago.

[@vancewillms6581]

I think you should do the same test with like a 671 871 blower with the same amount of boost numbers on the same motors just to see if there's any kind of differences that's just my opinion thanks for the awesome video anyways

[@pmd7771969]

Richard test a 454 with a cam change of only lsa. Let's try 114, then 106. Bloodviking

[@pmd7771969]

Rich, test some snow performance kits with hi boost

[@marcstlaurent3719]

Bigger engine with better heads/cam and add all the boost like I do with my 555 , why stop at 1000 , never thought my 4900 lb truck would ever wheelie and run a 1.36 60 foot on a street truck but it does and Colour me happy .

[@DaOnE51T]

Can you please do this for the BBF! Thanks

[@richardholdener1727]

it works the same

[@DaOnE51T]

@@richardholdener1727 but will it go bang before getting there especially the JYD SBE stuff.

[@jacksonbermingham2168]

the heads where not ported on the gen6 must be pre port. photos

[@cre8tivegarage157]

such a beast engine build

[@Go4BrokeOffroad]

We need a junkyard turbo 460 video. 88-91 flavor! I would love to donate the engine sir!

[@1fast72nova]

Good stuff 👍

[@dinger4480]

E-85 in a boat that never gets hot 160 temp is hard. Whats the highest compression you could go with pump gas e-85. 454 10 to 1 e-85 10lbs

[@lindsaymcpherson4744]

This has answered so many questions for me thanks for a great video, have you done a video of one big turbo vs twin smaller to make the magic 1000hp all on a bbchevy ??

[@richardholdener1727]

it works the same

[@johnwehunt4305]

Yeah!

[@ChristopherMiller-wp5zd]

What were the specs on the S476 turbos in the built motor combination? If it was in the video I didn't see it.

[@02badfnz]

This is awesome

[@richardzapalajr.4412]

Hey Richard... Any plans on a BBC.big bang... I know unless it's careless it'll be hard to hurt it... But boost is better... ? 454 lots of boost steel crank and rods. 345 heads and your fav. Comp roller.? Thanks I'll keep watching, you keep the Dyno warmed up. Thanks

[@richardholdener1727]

A BIG BANG MOTOR IS STOCK BOTTOM END-BUT YES

[@jarcrandallmr.shortbed1725]

Hey I have a zz502 with a cam upgrade that makes 1030tq starting at 3500rpm on 12lbs with 2 vs racing 76s

[@gt67supra]

What camshaft?

[@drummethod97]

Awesome video!! 🔥🔥🔥

[@pmd7771969]

If your going to run e85 run the most boost you can by testing. If your going to use 114 then run 36 pound of boost. Don't run racing gas if your not going to take full advantage of it by max boost. Bv

[@donaldharris9197]

I have a bone stock 454 t. B. I will it take a turbo this is a work motor

[@richardholdener1727]

HARD TO GET ENOUGH FUEL TO IT

[@nasty509ss]

Hmmmm,this may be exactly what my World 509 needs.

[@Minong_Manitou_Mishepeshu]

Would it be stupid to add twin turbos to a 71` Pontiac 455 HO with Ram Air heads? I know the compression would need to be lowered.

[@richardholdener1727]

would be awesome

[@Minong_Manitou_Mishepeshu]

@@richardholdener1727 Thanks for the feedback. Might be something that I pursue then. 👍

[@pmd7771969]

With a 4.6 bore would be awsome.

[@jonphillips3804]

Richard, question regarding the Gen6. How much are the heads worth compared to the stock “vortec” large oval ports like I have? I’ll hopefully be using a zz502 cam. Also from what I’ve read those heads don’t like much ignition timing, something like 29 degrees? What timing did you run on the gen6 while adding more boost?

[@richardholdener1727]

30 DEGREES

[@pmd7771969]

You always want to run max boost for the octane your running. Bloodviking

[@minibikemadman]

I love the videos but wish we could just get some live action of the actual dyno runs.

[@rickiethacker9930]

Alright so here a question. In your opinion what is the better route for reliability and cost. Bbc or Ls based engine. 4 bolt mains compared to 6 bolt mains. Stock cranks on both . What’s the better route

[@richardholdener1727]

both of the things you mentioned are reliable

[@71stang94]

AMC motors need to make a presence here to, see what is a AMC 360 smog motor capable of

[@johnb7430]

Have you done the same test with 385 series Fords? (460 family)

[@richardholdener1727]

I have 460 vids up

[@stevekotenberg133]

I have a 496 that currently has 12.5:1 compression and a large solid roller. I plan to lower the compression and put a mild to medium hydraulic roller and twin s475's. What would be the best compression ratio to start with and cam specs for low boost 1000 hp? I would like to do it on pump gas at low boost and use better gas if I wanted to turn it up. Any help is appreciated

[@richardholdener1727]

use smaller turbos for 1000 hp and 9-9.5:1 comp and is this going to be a driver?

[@stevekotenberg133]

@@richardholdener1727 Yes a driver for sure,

[@stevekotenberg133]

@@richardholdener1727 I'm also open to using a single turbo if it can be done without needing one that is super big

[@scotttimpany2845]

That'll turn most drivetrains into shrapnel

[@pmd7771969]

Bet you didn't do a 429 cadillac or quad 4

[@scottk2342]

Still waiting for that 1000 hp pontiac.. I had a conversation with Rodney Butler from Butler Performance for my cam secs for the 1200+horsepower street 440ci pontiac im building.Well it was great timing they just took a stock block 467 to 1438 horsepower they do it all the time hint hint Richard lol!

[@richardholdener1727]

STOCK 467?

[@scottk2342]

It was a stock block .30 over 455 nothing special build with forged pistons,cheap Callie’s rods, and cheap forged Scat forged crank…Pontiac guys stuff pistons and rods in these old dinosaurs and go over 1000 cheap and they put years of fun on them with stock cranks!Thanks for all the testing I’ve enjoyed your content!

[@dylananderson7183]

You think a turbo big block ford is ever gonna hit that stand?

[@richardholdener1727]

IT NEEDS TO

[@ChristopherArtman]

If I have GT 45 eBay turbos, can I do 800 horsepower on a stock 454 or 427 big block?With peanut butter heads safely

[@richardholdener1727]

If you have twin GT45s, you can do 1500 hp

[@Gameplay-3D]

Until I looked back at the cylinder head shootout and seen how expensive those heads are. Any budget friendly options with similar specs like those afr's

[@andyharman3022]

There's a reason AFR heads are expensive. They're worth it.

[@Gameplay-3D]

@@andyharman3022 of that I have no doubt. But when your entire dually budget is 30k cad it's a bit much. Lol. I'm going to 496 stroker with twin turbo and I figure at this point any aluminum head would probably be better than my peanut ports. I was just wondering out of the budget menu which ones would be best?

[@justinfee819]

@@Gameplay-3D The Pro Max seem like pretty good budget head's

[@andyharman3022]

@@Gameplay-3D Did you see Rich's video where he tested AFR's peanut port heads? They're awesome. I've had AFR small block heads on my Corvette since 1993, and they still perform great. No issues with them at all.

[@johnfixmer1510]

Hey Richard, how do you go about getting the air fuel ratio correct with boost and a carburetor?

[@richardholdener1727]

by adjusting the jetting, air bleed and boost referenced power valve opening

[@johnfixmer1510]

@@richardholdener1727 so, does that require a special carb?

[@richardholdener1727]

yes-a blow through carb

[@randallmason9687]

What size oil feed line do You use for the Ebay Gt45s?

[@Brock_Landers]

I can't answer for Richard, but I would use at least a -3 feed line with a -10 drain. I personally always use a -4 with a 1mm restrictor and a -10 drain.

[@madmod]

@@Brock_Landers restrictor use depends a lot on the turbo. I like those cx racing turbos. Great bang for the buck.

[@richardholdener1727]

-3 or -4-whatever we have

[@n8vjefe]

Let's see a Truck Norris cam on boost!

[@sagesenteno133]

What oul do i run for flat tappet bbc mild build all motor stock bottom

[@jfrost42688]

What head gaskets do you run on these 454? I guess I mean what brand b/c gen 5 will be different than gen 6. I have a 454 with vs racing with single 85/102 with promaxx 317 heads and using felpro 1017 head gasket, afraid to go 10#s with them.

[@justinfee819]

I heard him say before on the 496bbc he did with other power adder's they were the fel-pro MLS gaskets that's what I bought for my build

[@richardholdener1727]

MLS

[@flattiresmisfires]

Ever run Raylar parts on vortec 8100?

[@richardholdener1727]

HAVE NOT RUN AN 8100 YET

[@Jake_Hamlin]

Hey Richard, do you have any videos comparing c16 to methanol?

[@richardholdener1727]

no sir-I have never run methanol

[@krisjones1286]

I may have missed it but what grade fuel did each need to stay out of detonation?

[@richardholdener1727]

race gas and or e85

[@pmd7771969]

To a 430 462 m e l. Or the big 600 cif ford 1000 pound mel

[@flattiresmisfires]

Please run a vortec 8100 and do some n/a and boost on a Pontiac block I'll donate a 400 if needed. In Phoenix

[@steveo78227]

I have a 2014 ram 4x4 hemi cammed should I run twin turbo or go with the supercharger?

[@richardholdener1727]

BOTH WORK

[@thatrebelboy48]

If I done the first motor with 20psi from a single turbo, would that still yield the same results? I’m assuming the curve would be moved because of spool time/turbo lag but 20psi is 20psi…right?

[@richardholdener1727]

AS LONG AS THE TURBO WILL SUPPORT THAT

[@justinfee819]

Would 2 S475 turbos on a BBC 496ci be appropriately sized?

[@richardholdener1727]

FOR 2000 HP-YES

[@justinfee819]

@@richardholdener1727 So would 1 S475 turbo be able to support 1300hp on E85? Or what size turbo would be a good size running a single?

[@patricknedrow4245]

Would I be able to run 20 lbs of boost in a street/daily driver situation or is that to much for the motor

[@richardholdener1727]

NO NEED TO RUN THAT IN A DAILY DRIVER

[@evanc6110]

20 lbs? Why so much for street?

[@johnboticki9154]

First combo just needed a bigger cam, right?

[@madmod]

And valve springs

[@pmd7771969]

1 turbo sucks unless your trying to make a daily driver with a little more power. 2 are easier to mount.

[@pmd7771969]

How long an old 454 or any engine will survive and with Chinese turbos. Not to sure. With stock internals very iffy. Bloodviking

[@gothicpagan.666]

Look how flat those torque lines are (not a curve) 😂 crazy No's

[@Brock_Landers]

Chyeah!

[@bladenrexroth2555]

Junk yard gen 6 block, fire rings, head studs, main studs, forged Pistons, tons of boost...

[@bladenrexroth2555]

Maybe even a main stud girdle...

[@richardholdener1727]

no need for fire rings or main studs

[@bladenrexroth2555]

@@richardholdener1727 what about o rings for over 30 psi? You haven't broken a stock junkyard engine as of yet. But haven't been able to throw a bunch of boost at it to find it's breaking point?

[@bladenrexroth2555]

1500hp should be easy. What if it's a 2000hp capable engine just on boost, cam, valve train, hardware and orings?

[@doubledave7451]

I am dubious as to whether the stock bottom end Gen 5 454 would be able to handle 20 psi of boost long term even with new rings. People think they can often build 1000 hp motors for $5k due to watching shows where guys throw together "stuff they have lying around". I'm not saying Richard's doing that here, he's a pro and demonstrating what is possible. However, you can have a low buck engine or a reliable engine but you cannot have a low buck reliable engine.

[@gabrieldeane5406]

Please twin turbo the engine masters 598!

[@Prestiged_peck]

Get a 496 (8.1 vortec) put decent ebay heads on, decent intake, and boooost

[@richardholdener1727]

where r all the ebay 8.1l parts?

[@pmd7771969]

On a n.a. motor you can't do much better then racing heads better cam more compression

[@pmd7771969]

About 21 psi

[@meangenevstheworld.7773]

Would this NA vs boosted output be the same with 350 ci vs the 454ci.

[@richardholdener1727]

THE BOOSTED POWER OUTPUT IS A FUNCTION OF THE NA POWER

[@meangenevstheworld.7773]

@@richardholdener1727 10 - 4

[@brentonk461]

make you a thousand naturally aspirated, with cast iron heads.

[@pmd7771969]

Never exceed the limit of your weakest part. B v

[@jasonwhite7885]

3 different combos that are not stock so its really no comparison

[@daviddavids3468]

BETTER PARTS , LESS BOOST WAY MORE RELIABLE IF YOU CAN AFFORD IT. TOO HIGH BOOST = DETONATION = BLOWN MOTOR

[@pmd7771969]

268 cam. Ugh. Try a 284

[@richardholdener1727]

no need

[@pmd7771969]

The reality of it is most guys want to run this on the street so octane dictates boost numbers.

[@Bridging_the_Political_Divide]

Don't most cities have E85? E85 here in SoCal is cheap and plentiful.

[@pmd7771969]

Do

[@unclesquirrel6951]

Personally I blame squirrels

[@mirsakalash6667]

no engine is better than a BBC turbo

[@mikeeagle2653]

You can make 650 hp with an ls3. And it weighs 200 pounds less

[@flattiresmisfires]

But an ls3 doesn't make the same torque as these engines at low rpm. 650hp 540cid way faster than 650hp ls3 in a heavy car or truck.

[@richardholdener1727]

PLEASE SEE THE 825 HP TURBO LS3 WITH 7 PSI

[@GeraldClouserjr]

Boost ain't free cuz

[@richardholdener1727]

turning it up is free

[@MrBlackbutang]

No phoe king way

[@garyeuscher4499]

Yes But the LS can handle higher continuous power than a BBC

[@pmd7771969]

The complete advantage. If you run on alcohol, you don't need an intercooler,, no bleed of valves,radiater, or low compression and run high boost.

[@richardholdener1727]

INCORRECT

[@pmd7771969]

If they would give us higher octane rated pump gas we would have more options. Bv