Bigger cubes will drop boost, changing the cam can affect boost. Superchargers are moving a fixed volume of air at a given RPM. Boost is just a measure of resistance to flow. So if you increase the volume of air the engine can flow, you reduce the resistance against (boost) a given volume of air through the motor. The supercharger is still flowing the same volume of air, the engine just moves more volume than it did before. Also, under driving a supercharger will result in less boost… you’re spinning the charger fewer times per revolution of the crank. Not sure if you mis spoke or I misunderstood what you were saying. If you had it at 1:1 and want more boost you gotta over drive the supercharger

@ryanmoss408

9 ай бұрын

This!!!

@escuelaviejafarms

9 ай бұрын

Pretty much took the words out of my head. Spot on.

@edlebrock3501

9 ай бұрын

@pastaalalamborghini^^^well said, higher displacement and changing the cam means more CC's of air needing to be filled by the supercharger. Need to overdrive the supercharger and Re-Jet the carbs to get better results. Though I am sure it is still producing a pretty significant more power than before!

@dertmatyui

9 ай бұрын

interesting. in my moron mind I would figure smaller SC pulley= underdriven. just cause the words match up

@1990GearHead

9 ай бұрын

High flowing heads and an free flowing exhaust will drop boost numbers too it will make good power just at less boost

Hey Boys, I think you are confused about over-driven and under-driven. When you "over" drive a blower that means you are spinning the blower pulley faster than the crankshaft (larger pulley on the crank, smaller pulley on the blower drive). When you "under" drive the blower the crankshaft is spinner faster than the blower (small pulley on the crank, big puller on the blower). Just for reference - if you have an overdrive high gear your crankshaft is turning slower than the drive shaft and under drive gear gives you a slower drive shaft, faster crankshaft. Hope this helps. 👍 Great content, keep rippin' it up!

Positive pressure is positive pressure. Doesn’t matter if it’s turbo or blower. You’re only making 6psi vs the 5psi before even after swapping pulleys is because you have better flowing heads and a better camshaft Boost is a measure of restriction. Bigger cam, better flowing heads, less restriction, less boost However it’s still seeing more airflow so even though boost numbers are the same, it’s making more power

Most interesting part of this video for me was seeing JH explain how he knows the frame bars are flexing because of the chipping paint. He throws that knowledge out like its nothing, but it's actually incredibly invaluable.. Guy knows what he's talking about

Love seeing a JH video post. Much respect for posting those rocker arms coming loose. You could have just as easily left that part out and no one would ever know. When a man has a lot going on it’s easy to miss the small things sometimes. Maybe this will remind someone to check their rocker arms from coming loose and possibly save a motor, you just never know

@JHDieseland4X4

9 ай бұрын

I will never hide anything from the viewers. Everybody messes up.

@bethanyhaskiell9116

9 ай бұрын

​@@JHDieseland4X4you have to put zoomies on it

That second start up blew the speaker out of my phone haha. Keep up the videos love the content and all the hard work you guys put into them.

I like the ' I know but I don't know " sharing And asking about information. Nice 😊

Honestly, honesty goes along way in my book and you sir are proving to be a top notch friend/employee!! Hats off to you Justin!! You da man!

I like seein the merchant automotive banner in the background!! They make a solid built unit out of the allison 1000.

Good to see people showing they are only human. Glad it's good to go

Nice work fellas

Well dam...I went to get coffee and a biscuit Saturday morning at iron horse and Ole Ron was already on the trailer. Last time she was gettin it.

Keep up the great work bro 😎🤙 much love from Pennsylvania 🥳🇺🇲

The real MVP is that starter.

nice rig man, proud of everything you do and acomplished

Sounds amazing! Can’t wait to see that thing ripping in some mud!

Late nights and long days make for really good times broski, yall be safe and live it up

Out there sounding like a legit monster truck now. Hell yeah 💪👍

Well in the words of ol Cleet "Hell Yeah Brother"!

Nice to have a truck channel that’s not all about bs giveaways

Let's go respect to you and justin jh your killing it watching from the uk

Your channel is awesome JH. I wish u and Justin success long into the future buddy.

Hell yeah! 👍🤘👏 I always tell people, clickity clack is upstairs, knock knock is downstairs lmao 🤣

The beast is almost back. Looking good too. Just don't let Mr. Sam up in that engine bay. With all that chrome and not shining like a diamond.🤣

A lil bit of air boat ,smoked mullet,publics chicken and gator we got Florida man of the year !!!!

JH and Justin y'all rock! Love the channel and content. Peace

She's a beaut! Great job Justin. Appreciate keeping it real.

Big blocks can be hard on valvetrain stuff, especially with a big cam and spinning some rpm's. if you start having problems with it, you can always increase the size of the studs, or run a rocker stud girdle, or both. a lot of drag race guys go this route, but a lot of them dont have a lot of problems until they are making over 4 digit power levels or revving them over 7k.

You need a small engine to turn more rpm in the mud. That new engine is going to blow up by the 3rd or 4th event with that blower on a big engine turning high rpm.

@bullfrog1807

9 ай бұрын

That’s exactly what I thought but that 454 took a beating on a stock bottom end…took way more than I thought it would, now it’s got forged internals and I’m pretty sure they set up a rev limiter a while back

@JHDieseland4X4

9 ай бұрын

It only turns 6200RPM....

@bullfrog1807

9 ай бұрын

@@JHDieseland4X4 I’m just happy to know you really are a chevy guy at heart…I see the way you’re drawn to them like a moth to a flame, love the direction the bogger is going. Would love to see you with a Steve Morris built BBC in that bad boy down the road, something like Mullets 1st big block 💪🏼

Congrats on the new engine! Lets hope it'll last longer 😂

I think the blower moves a fixed volume of air. Boost is the resistance to that volume of air. An engine with better heads, a better cam, etc... can move more air, less resistance to the blower, less boost. I'd imagine its making more power at the lower boost numbers now moving more air.

I love the blower shield honestly.

First a lil Cleetus action, now JH.. Shoot, its a good day! ❤️🤍💙

Those 2 studs must have been just after the noon bong hits.

Shes sounding good! Hope everything worked out.

Great work guys 💪💯💪

Good job guys..sounds awesome

Well you got the best friends in the world to ask about the boost!!

JH please get garret involved with these monster mud trucks. Would love to see y’all together more.

Great content thanks for sharing

Never fails to post good quality content

That thing is way to sick JH 👌😮

Been waiting on this to drop ever since you told me a danger ranger!!!

15:17 she choochin' !!! 😂😂😂

More displacement pulls more air and is pulling your boost number down. Going to have to spin that charger a lot more than what the old engine required

It's got arp studs in it... it can't lift the heads... lol blower says hold my beer

I bet the neighbor kids love when JH gets the big trucks out.

Good stuff brothas, get a good tune in Ronny B.

Awesome!! Sounds like it needs a bit longer gearing

I knew Sam should’ve been overseeing the build watching y’all just for a experienced pair of eyes. But sounds strong good luck.. 👍🏻

I love it!! Cant wait to see it rip! I also and wondering if your gonna revive the 6.0 beast!!!

Let's gooooo more bogging videos can't wait my favorite 😍

Justin IS a BOSS

🤣🤣 I’m sure the neighbors are gonna LOOOVE this 👍🏻

2:12 sick!

Warm it up then check everything over

Looks like grass is growing under the tires of ron burgundy !

If you have a bigger or better flowing cam then before itll have less restriction so the boost will be lower. Also if the cam has to much vavle overlap (las) it will blow the boost out of the exhaust. And being bigger displacement it takes more air to fill the cylinders

Sick motor!🤙😎

Boost is a measure of air flow restriction, you increase the air flow with bigger camshaft and bigger cylinder heads so the engine is flowing more air through it and therefore shows less boost. Less boost is not necessarily a bad thing and if you increase the boost to the same reading it showed before it's going to make an incredible amount more horsepower.

Ron’s back!!!!

Sounds good!

Great job!

Thing sounds great guys, as far as where you’re Boost level is you can look at boost charts on line and they’ll give you a pretty close estimate where you’re at with your cubic inch and what number of teeth you’re running on your pulleys. (And of course there’s other factors that play in also like compression and what cylinder heads your running ect) Your top pulley looks pretty small so I doubt if you’re underdriven, my 498BBC with an 8-71 at 8.4:1 compression makes 9 pounds of boost Running it 1 to 1, nice work guys🏁🏁

Fabrats had a Chevy big block top end come apart. And they had good rocker arms on there fresh build also. 17:23

Can't no one break em quite like ole JR

More cubic inches will take more volume of air for same psi of boost.

More cubic inch equals less restriction equals less pressure. Cam situation can also bleed pressure. Also, you are overdriveing the blower not under driving it. The smaller the pully you put on the blower the more you over drive it.

Need Sam to polish that blower!!! Lol

Hope to see a MUD BOGG VIDEO SOON 💪💯💪

I wish Justin and JH we're driving in lemullets instead of JH driving with Garza😂

@cody39yrs

9 ай бұрын

Yeah I thought that was kinda weird. Why is Justin never part of the events? Maybe because he's the camera guy or something.

@B.Colby107

9 ай бұрын

@@cody39yrs yea that or is it that he can't drink beer and race?

You might have to adjust the rockers again it's a fresh engine needs to break in

@sleeperimpala2504

9 ай бұрын

Nothing to adjust. It's a hydraulic roller cam.

Yes a bigger less restrictive engine will make less boost ! .. pulley it up again .. bigger on bottom smaller on top

She’s sounding good

These diesel guys bout to blow up another gas burner 😅😅

Nice little 496 ci

More efficient engine will make less boost (back pressure) while making more power with the same blower ratio.

Highly surprised it's not Cummins swapped with compounds all turned up

Safe to say this engine is making more power than the last engine. Probably gonna need a torque converter change and possibly a gear change. The engine is blowing throw the converter I sure hope yall catch this before you wipe out the thrust bearing. Better flowing heads drops boost pressure so does more cubic inches.

Easton's getting shit done!

Check your numbers on your pulley make sure you have them in the right places. Also check your timing marks on the spark plugs. If the timing is off and also fuel. You'll make way less boost than what you planned for.

@johnhunter2945

9 ай бұрын

cant hep myself, timing marks on spark plugs, what you smokin

@ThanatoViper

9 ай бұрын

@johnhunter2945 actually yes there is timing marks left on the strap of the plug. Good way to see if your running good timing or if your plugs are all firing equally. Also a good way to see the condition of the cylinder. As far as fuel and timing.

@ThanatoViper

9 ай бұрын

@@johnhunter2945 kzread.info/dash/bejne/qn1tqJavlZPOpqQ.htmlsi=4EaHsSBmWdBz8Afn

@budddove6480

9 ай бұрын

​@@johnhunter2945Its pretty obvious you don't deal with anything high power. Its called reading the plugs. The spark plugs are the go to for checking fuel mixture and timing. The fact that you tried insulting him while being dead wrong is priceless.

You added more cubic inch. It Now takes more air to fill the engine meaning you’d have to spin the blower harder to make the same boost as before. May be why you saw such little increase in boost from the pulley swap.

Ron Burgundy sounds pretty amazing! Cant wait to see it in a mud hole!! #BuiltByBo

Keep it clean Cleetus will let u drive in grass between electric poles

JH GASSER and 2x4

Cam and head flow will make less boost Pulley er up !

Of you guys swapped up cams you will also get different boost readings.

Would love to talk more JH im a heavy machine mechanic and a performance mechanic and make my own parts would move to know more as far as if the axles are stock and the weights etc. Im working on my own awd gears etc and want it to work drag race and bogging so would love to know more because i believe we run heavier axles in the bogging where im from plus im a diesel head. Love me a 2 stroke deteoit!!

Motor is definitely bolded up

The only way I can understand blower pulleys and how to make more power is to compare it to the 21 speed bike. To make it go faster down hill you always had it on the big pulley at the pedals and the smallest one that was on the back wheel. It was hard to petal but ounce you got it started or going down hill. Same thing with a blower

Perfect engine for JH, cause even when he tears it up, the name stays the same. It has a blown big block regardless....lol

It would be cool to see Dragy times from a dig!!?

@chevyheavy79

9 ай бұрын

It would be something like 50ft 10 seconds

@Rusty.1776

9 ай бұрын

@chevyheavy79 So true, but a guys gotta know! 😂

Man that engine is a UNIT

Man i love you guys ....the sound is off today though?

Sounds like your gonna have to talk with the mad scientist

Try setting your timing with a vacuum gauge..

More efficient cam/motor. Its using the air your throwing at it

I would like to up route and come work for you I like your style and think it would be a great fit!

You said You had the bigger pulley on bottom (crankshaft) and smaller on top(supercharger) if that is correct then You are overdriveing tha supercharger not underdiveing as You stated.

hey brother , more displacement would mean it would need more air than before to fill the cylinders now maybe a bigger pully change is needed to make the boost you need. it went from 454 to 468 right? just an idea common sense wise i think it makes sense. I'm not expert either but it does make sense