Good video, it's amazing how an engine can fire and explode fuel so fast, it's a shame you don't show the crankshaft spinning as well, you could still run a long tube to an oil bucket to the pump so the pump can pick up oil and just put a big tray underneath for the falling oil.
I've been a mechanic for atleast 12 years now. I have always wondered what that looks like. Im not so sure that was only 1000 rpm, was it. I would guess closer to 3 or 4 k.
It's not pressure that lubricates. Pressure only ensures there's enough oil where it's needed to provide separation as rpms increase and it has less time to make it there.
In fact oil pressure tries to push certain surfaces into contact rather than separating them. Which is what the hydrodynamic oil wedge that forms between sliding surfaces actually does.
Too high oil pressure is actually bad as it is indicative of too thick oil or a restriction.
i don't know why but i'm always amazed at just how fast parts on an internal combustion engine move. i can only imagine what its like for a sprint cup car turning 9k rpm
@1skeeter505 A honda 4 cylinder engine is smaller and has a much smaller stroke , less rotational mass . Well those v8s run at 9000 rpm for hours without stopping all while making loads of torque and close to 700 HP, a stock honda engine would blow up if it were put to that stress, an engine needs to be built for what its going to do.
@cubano1389 That doesn't make any sense. A V8 can have VTEC. VTEC is just a variable valve timing system involving a dual lobed cam and an oil sollenoid. You could, in theory, install a VTEC system in any size engine. The only thing it does is give you 2 cam profiles for use in different driving conditions.
Now think about speakers...the upper range for most human hearing is 16kHz...16 thousand cycles a second (I know 20kHz is usually where they say the max is but most can't hear much beyond 16). It's just amazing how all this stuff we use daily really works and how much is going on that we really don't think about.
@frambesbuckeye Thats what they claim, but so fyi, give or take, 17,000 rpm is the limit of a rotating internal combustion engine, only have so many characters so in short, it has to do with the limits of strength of the steel, at any size it will only support its weight at g forces to a law of physics, or so ive read, not saying i cant be wrong but it may be sumthin you might wanta research so your not led astray by unfactual facts, im gna have a look for that 19,000 rpm f1, and c what i see.
So i guess theres not much point to try and build oil pressure in a fresh motor by just cranking it over for a while? Looks like it doesnt build pressure till about 500rpm.
@IBLOWN yep, I suspect you are right. As a minimum crank without plugs and then I guess if you cranked a freshly built engine for long enough, some oil would move around... but only if the pump manages to prime itself and even then little pressure would be built up at cranking speeds Cheers!
@BigMaxTube my freshly built isuzu engine got oil pressure on the starter crank , took at max 20-30 sec of cranking. I guess it depends on the engine. I never start a new engine without first having oil pressure on starter, or at less a indication of pressure on the gauge
Bloody good video. Correct me if I'm wrong though, if the oil pump was working properly wouldn't there be oil shooting out of the oil passages in the block, where they would be going to the head? Or did you block them off?
@thegreatgodkirby The passages through from the top of the block are for coolant and oil return only... The oil only gets into the head via the pushrods...not fitted here.... as the lifters fill up the excess oil goes up under pressure through the hollow pushrods to lubricate the rockers etc, then simply flows back under gravity through the passages you mention. So no, even with 40PSI oil pressure in the block, no oil shoots out. Thanks for looking and commenting, Max
@Dyn0Don This is an old General Motors Holden Australia designed engine, not a chev, first production around 1970 in the HK (I think) model, maybe the HT one year earlier. These were unique to Australia, with a different firing order to the Chevies. The only problem with this method of pre running is if a lifter pops out of it's bore it opens the main oil gallery and besides making one hell of a mess in your workshop you loose oil to the mains, bigends, &cam. Good old work horses.
Funny how much they vibrate without a flywheel. Rig a little different engine stand and put a flywheel on it I'd bet it'd smooth out. Maybe I'll borrow this concept next time I have a motor out and pre-break in a cam?
Hi there, I have a 308 V8 and would like to know, what is the optimal idle speed (RPM) that it should at? I have been having issues with my batteries albiet second hand and reconditioned ones that gradually get drained in power within months. This is the third one within a year. I didnt think much of it seeing as I got the batteries cheap but its annoying me now. I think my idle speed is too low at roughly 400-600. Is this sufficient enought o charge the alternator? Thank you.
Well spotted, the piston marking is caused by ignition, it think it shows the flame pattern. This was a well used engine, all I had done to the pistons was clean off the carbon deposits.
Very well. you can change them with a shiny new ones since theyr'e not going to give the same performace as the other ones i think. i hope they don't lose compression. but changing a piston will have to take probably days cuz u need to unmount the whole engine.
Really makes you appreciate how fast 6000rpm is..Thats 100 and you couldnt keep track of the 4 stroke cycle. The engines only turning at 16.6 times a second, imagine 100 or 150 times a second!
The VSD is an HITACHI SJ200 series... this was the pinnacle of development, a brilliantly responsive product that maximizes motor performance with minimal current draw (Sensorless Vector Cotrol) around 15A @240VAC for 3HP.. my opinion only,,
Good video, it's amazing how an engine can fire and explode fuel so fast, it's a shame you don't show the crankshaft spinning as well, you could still run a long tube to an oil bucket to the pump so the pump can pick up oil and just put a big tray underneath for the falling oil.
ElvisRocksVinyl 5 days ago
SOOO COOL
ThomasXp 1 week ago
i just want to put some golf balls in the cylinders and crank it up... cool video
DadsL78 2 weeks ago
I've been a mechanic for atleast 12 years now. I have always wondered what that looks like. Im not so sure that was only 1000 rpm, was it. I would guess closer to 3 or 4 k.
jefferytammy 2 weeks ago
dude I think i found your problem! you have no cylinder heads! haha just kidding, this is awesome :)
Tboom123 2 weeks ago
Inside a straight 4 at 11,000rpm...
TheSchmiders 3 weeks ago
Dude turn a light on.
67FrankenStang 3 weeks ago 2
damn thats sick
bboymonk3y 1 month ago
imagine at 19000 rpm...
timykaien 1 month ago
Get a big enough electric motor and some batteries you won't need all those hundreds of moving parts and gas .
The1234cadillac 1 month ago
Im amazed how these things manage to stay in one piece even at the speed.
andrewlamb123 1 month ago
what was the max rpm you had the motor spinning at?
wc3john 1 month ago
SPIN ROTOR SPIN!!!!
thedriver97 2 months ago
lifters floating halfway when the cam lobe comes around could do alot of damage!!!
renofreitas96720 2 months ago
damn pistons becomes a blur as it goes faster. nice
CharlesDeCapua 2 months ago
high five with piston yo!
6RaFiO9 2 months ago
It's not pressure that lubricates. Pressure only ensures there's enough oil where it's needed to provide separation as rpms increase and it has less time to make it there.
In fact oil pressure tries to push certain surfaces into contact rather than separating them. Which is what the hydrodynamic oil wedge that forms between sliding surfaces actually does.
Too high oil pressure is actually bad as it is indicative of too thick oil or a restriction.
I like your moly assembly lube.
maersklandro 2 months ago
Wow thats cool to finally see one running at idle speed.
Bamchucknorris 2 months ago
put your finger in the cam shaft....
mjndblain 3 months ago
i don't know why but i'm always amazed at just how fast parts on an internal combustion engine move. i can only imagine what its like for a sprint cup car turning 9k rpm
gasman7777 3 months ago
what if it started right now.
apexironworks 3 months ago
Wow, no way i'd be running it like that with the lifters in. Hardened steel hitting hardened steel doesnt mix lol.
IBLOWN 3 months ago
that was awesOME !!! no seriously it was
tenjinnim 4 months ago
@cubano1389 v8's suck? Put a vtech in a chevy 3500 and put a 5th wheel on it and see what happens
shupster369 5 months ago
@1skeeter505 A honda 4 cylinder engine is smaller and has a much smaller stroke , less rotational mass . Well those v8s run at 9000 rpm for hours without stopping all while making loads of torque and close to 700 HP, a stock honda engine would blow up if it were put to that stress, an engine needs to be built for what its going to do.
cubano1389 5 months ago
Never would of thought. But hey you forgot to hook up the water pump. It's going to over heat. Lol nah that's some cool shit
cgrobe21 5 months ago
why dont you put your finger in the head? hahahah that wouldnt feel good.
thevidiodude177 5 months ago
Comment removed
miamibitch305fl 5 months ago
thumbs if you thought it said 10,000rpm
JasonMann8 6 months ago
A stock vtec Honda motor "non-Nascar" can run 9krpm also
1skeeter505 6 months ago
Don't those Lemanz deisel race cars run over 17k?
Mercanyin2 6 months ago
ok so you know that when you do a sim test you have to install the heads so you have pressure on the cam so you dont bevel it with the lifters
durango19984x4 6 months ago
i dnt like v8z but i like this vid. only if it were at 9k rpm then that b amazing.
1skeeter505 6 months ago
@1skeeter505 Nascar's run around 9krpm.
Mercanyin2 6 months ago
@1skeeter505 Lol i always see Honda guys saying the same thing, v8 sucks VTEC is better yall.
cubano1389 5 months ago
@cubano1389 That doesn't make any sense. A V8 can have VTEC. VTEC is just a variable valve timing system involving a dual lobed cam and an oil sollenoid. You could, in theory, install a VTEC system in any size engine. The only thing it does is give you 2 cam profiles for use in different driving conditions.
k0namiman 5 months ago
engine idle speed.
iCrack101 6 months ago
wonderful video..great...wooonderfulll....good job man :D
bokca89 7 months ago
@ 2:10 wat is that thing spinning around?
8747800 7 months ago
@8747800 the distributor rotor its under the distributor cap. its the part that the spark jumps from to the little anodes in the distributor cap
jrodthegreat1 7 months ago
LOL At The Valve Lifters! xD
FlickTricksOffical 9 months ago
rev it!
vontristan19 9 months ago
I just wish i could move my hand that fast... You know why! ;)
RealCadde 11 months ago
what a music!!
neezocrene 11 months ago
Redline for an F1 engine approaches 19,000RPMs..........think about that one for a sec.
frambesbuckeye 1 year ago
@frambesbuckeye now thats fast!
traxxasmaxx33 1 year ago
@frambesbuckeye Yep...over 330 rotations a second.
Now think about speakers...the upper range for most human hearing is 16kHz...16 thousand cycles a second (I know 20kHz is usually where they say the max is but most can't hear much beyond 16). It's just amazing how all this stuff we use daily really works and how much is going on that we really don't think about.
94XJ 7 months ago
@frambesbuckeye Thats what they claim, but so fyi, give or take, 17,000 rpm is the limit of a rotating internal combustion engine, only have so many characters so in short, it has to do with the limits of strength of the steel, at any size it will only support its weight at g forces to a law of physics, or so ive read, not saying i cant be wrong but it may be sumthin you might wanta research so your not led astray by unfactual facts, im gna have a look for that 19,000 rpm f1, and c what i see.
curtknows101 6 months ago
So i guess theres not much point to try and build oil pressure in a fresh motor by just cranking it over for a while? Looks like it doesnt build pressure till about 500rpm.
IBLOWN 1 year ago
@IBLOWN yep, I suspect you are right. As a minimum crank without plugs and then I guess if you cranked a freshly built engine for long enough, some oil would move around... but only if the pump manages to prime itself and even then little pressure would be built up at cranking speeds Cheers!
BigMaxTube 1 year ago
@BigMaxTube Yeah im building my motor ATM, nearly ready to go back in. Theres no way i can prime it any other way as the oil pump runs off the crank.
IBLOWN 1 year ago
@BigMaxTube my freshly built isuzu engine got oil pressure on the starter crank , took at max 20-30 sec of cranking. I guess it depends on the engine. I never start a new engine without first having oil pressure on starter, or at less a indication of pressure on the gauge
Veikra 5 months ago
@IBLOWN a volvo b20 will hit enough pressure at 600-700 rpm
Xebers76 2 months ago
Very cool video! crazy to think about the abuse we put engines threw on a daily basis
fowdalla1 1 year ago
Bloody good video. Correct me if I'm wrong though, if the oil pump was working properly wouldn't there be oil shooting out of the oil passages in the block, where they would be going to the head? Or did you block them off?
thegreatgodkirby 1 year ago
@thegreatgodkirby The passages through from the top of the block are for coolant and oil return only... The oil only gets into the head via the pushrods...not fitted here.... as the lifters fill up the excess oil goes up under pressure through the hollow pushrods to lubricate the rockers etc, then simply flows back under gravity through the passages you mention. So no, even with 40PSI oil pressure in the block, no oil shoots out. Thanks for looking and commenting, Max
BigMaxTube 1 year ago 3
@BigMaxTube Interesting. I could have sworn the small block heads had oil supply passages. Maybe I'm thinking of the LSx. Anyway cool video.
thegreatgodkirby 1 year ago
@thegreatgodkirby Yes. LSx has them.
Dyn0Don 10 months ago
@Dyn0Don This is an old General Motors Holden Australia designed engine, not a chev, first production around 1970 in the HK (I think) model, maybe the HT one year earlier. These were unique to Australia, with a different firing order to the Chevies. The only problem with this method of pre running is if a lifter pops out of it's bore it opens the main oil gallery and besides making one hell of a mess in your workshop you loose oil to the mains, bigends, &cam. Good old work horses.
whorayful 10 months ago
Funny how much they vibrate without a flywheel. Rig a little different engine stand and put a flywheel on it I'd bet it'd smooth out. Maybe I'll borrow this concept next time I have a motor out and pre-break in a cam?
Warblade118 1 year ago
@Warblade118 Yep, give it a go and post your results. Cheers! Max
BigMaxTube 1 year ago
Well cool, cheers for the vid mate!
lawrieskipper 1 year ago
Hi there, I have a 308 V8 and would like to know, what is the optimal idle speed (RPM) that it should at? I have been having issues with my batteries albiet second hand and reconditioned ones that gradually get drained in power within months. This is the third one within a year. I didnt think much of it seeing as I got the batteries cheap but its annoying me now. I think my idle speed is too low at roughly 400-600. Is this sufficient enought o charge the alternator? Thank you.
LFiers 1 year ago
@LFiers the average idle speed for a v8 is usually 700 or 750 rpms. But thats off the top of my head, you have to check the manufacturer specs.
619426 1 year ago
@619426 My idle speed is 500 rpms. 04 chevy 4.8 V8
POWEREDBYDEESNUTS 1 year ago
Stick your finger inside!!!
frambesbuckeye 1 year ago
this is pretty awesome. haha thanks for uploading it! :):)
chuckman101 1 year ago
dude thanks for posting this vid! waiting for something like this for ages
Paiste402 1 year ago
she will keep cranking but shes still not gonna start
this is by far one of the best video demonstrations of a v8 good job
rallyausofficial 1 year ago
nice chamfered bores ;)
OverlyExcitedNewJack 2 years ago
this is the coolest youtube vid i've ever seen man.
MrMurphy1025 2 years ago
around 2:13 whats that in the oil on the lifters? bubbles?
kriegdouch 2 years ago
Yep, air bubbles they were. After a while, they went away as the pump purged them out.
BigMaxTube 2 years ago
Dam thats cool! good job.
mattyvt93 2 years ago
that pistons @ :46 looks a bit in bad shape, its probably because of the gasoline ignition right? btw wouldn't be bad if you do this to the engine?
elchicoboy 2 years ago
Well spotted, the piston marking is caused by ignition, it think it shows the flame pattern. This was a well used engine, all I had done to the pistons was clean off the carbon deposits.
BigMaxTube 2 years ago
Very well. you can change them with a shiny new ones since theyr'e not going to give the same performace as the other ones i think. i hope they don't lose compression. but changing a piston will have to take probably days cuz u need to unmount the whole engine.
elchicoboy 2 years ago
well done :)
supergrantpedersen1 2 years ago
Really makes you appreciate how fast 6000rpm is..Thats 100 and you couldnt keep track of the 4 stroke cycle. The engines only turning at 16.6 times a second, imagine 100 or 150 times a second!
jaydnisevil 2 years ago
loved it thanks (same for the idel one to).
shawnc890 2 years ago
What a great way to test an engine without actually starting it! Doesn't BMW do this in the assembly process of their road car engines?
Ferrariman601 2 years ago
Yep, they probably do. It seems that my idea was by no means original!
BigMaxTube 2 years ago
excellent..!
belowboii 2 years ago
This is cool as hell. Actually sounded like a running engine, too.
TestECull 2 years ago
imagine an rc car with one of those little 2 stroke engines that top out around 30,000 rpm!!
chidfh 2 years ago
can ya'll imagine what the inside of one of those top fuel dragster looks like while at full throttle
fordsforme1 2 years ago
The valve lifters are like little gophers sticking their heads out of their holes in the ground lol
sniperv25 2 years ago
that was pretty cool! nice work
assholebjorn 2 years ago
awesome!!!! this is really cool and educational.
95stangdude 2 years ago
I have always wanted to see something like this, very cool! Thank you for making this video!
ozzman9292 2 years ago
hehe, your camera cant even keep up. thats awesome
MASTERSKITLEZ 2 years ago
5 stars thanks for this video , great effort
zigero 2 years ago
SO jealouse that you have this!
jaydnisevil 2 years ago
You must have fluorescent lighting in your work area. Thanks for posting this!
compu85 2 years ago
Wow man!, you'd need a high speed camera to catch all those piston strokes!.
What type of VFD are you running that electric motor with?
Aussie50 2 years ago
The VSD is an HITACHI SJ200 series... this was the pinnacle of development, a brilliantly responsive product that maximizes motor performance with minimal current draw (Sensorless Vector Cotrol) around 15A @240VAC for 3HP.. my opinion only,,
BigMaxTube 2 years ago
very cool video.. thanks for posting it!
NOREASTER1 2 years ago