the reason you hear the two supercharged cars RPM pulsating is called boost or blower surge. basically they are not tuned to idle and make too much boost, as the motor leans out the RPMs come up the boost comes up and richens the mixture out and the engine slows down, the RPM's drop low enough to have a lean mixture causing the RPM's to increase, rinse, repeat.
Man, That Sh-Boom Caddy is the baddest sounding most gorgeous rod I've ever seen. The blower surge was putting so much torque to the rear end, that it was compressing the wheelie bars at every surge. WHAT A RIDE !!!
That blower and wild cam sound awesome. I got the same surge from my normally aspirated standard 360 V8 Mopar by advancing the timing and possible vacuum advance changes. Then same again from a HP GM V6 with stage 3 cam, all without any blowers or turbo's. Seriously, I got was a sore neck from the surge and sick of popping the bonnet to prove to folks it was not blown. But i must admit, blower surge does sound better.
I'm glad someone agrees with me! If it were the cam, the mountain motors in prostock cars would be surging. Those cams are HUGE, you only see the surging when a car has a blower.
The pulsating actually has very little to do with the cam. It is actually created by the butterflies on the intake. Since the supercharger creates a vacuum to the butterflies, it forces them to close completely. Wich in turn starves the engine of air. This causes the vacuum to die down from the engine being close to stalling. Which in turn allows the butterflies to open slightly again, because there is no vacuum keeping them closed. This process keeps happening over and over.
*facepalm* With fixed valve timing, a camshaft is set up to make the most power and torque for a specific engine RPM. When this range is moved to a higher RPM than stock, it affects idle quality. Specifically the idle RPM may not be steady and/or the engine may sound as if it would stall and stop, but it doesnt, hence a "lumpy" cam. and BTW N/A cars also do it not just superchargers
A shaft in the engine on which are the lobes (cams) that operate the valves. The camshaft is driven by the crankshaft, via a belt, chain or gears, at one half the crankshaft speed. One or more camshafts regulate the opening and closing of the valves in all piston engines.
That's because it's the only one, I'm guessing, that actually gets driven and isn't a dust collector. It definitely is tuned and ready to do more than roll off a trailer.
wtf is it with trailer queens? Cars are made to be DRIVEN not just on and off a trailer. A majority of these things would break and puke fluids before even going a mile. Beautiful cars, one and all, but seriously, why have a car you can't drive????/
Also, a lot of guys don't live within a reasonable distance from car shows and it's impractical driving the car, to and from, because of the terrible mileage excessive horsepower tends to bring. They'd have to be stopping too often to refuel.
Flames are so overdone. I'm going to have my car painted with a light green haze to look like it's covered with pollen. Also a few spots of bird shit and a dead leaf or two. Maybe I'll use real pollen and bird shit and just clear coat over it. I gotta start patenting these ideas.
that's a boost surge the blower is so big that it builds boost immediately and give that cam because the intake is getting so much air with the throttle body barely open
If he is or not isn't really important. He is correct. That surge is actually caused by the compressor of the supercharger. Even roots and twin screws can have compressor surge just like a turbo, but unlike a turbo they are belt driven and the surge causes the idle do jump like that. In most cases it can be solved with the right setup, but sometimes it will happen regardless.
Absolutely beautiful looks& sound. Although... I was told a long time ago that revving up before switching off was not good. I used to think it was useful to give a final little blast of charge to the battery. However when you turn off the power, the oil pump stops immediately, and because you revved it first, the pistons are still going up& down, but without any oil pumping: so you're wiping away what should've been left coating everything ready for start-up. Doing it a few time probably doesn't matter, and on occasion adds to the drama of the show (like here); but on yer everyday runner it's not a good idea. If things are different these days tell me, I will stand corrected if needs be.
Wait what? Oil pumps are engine-driven, aren't they? I don't think I've heard of any cars outside of super niche Formula 1 style stuff not having directly engine driven oil pumps
I love it some ppl think that first car he was giving in the gas to make it surge like that but thats at idle that massive blower does that including the big cam some cars chirp the rear tires just from idling lol
@akrause, Yes the pro mods do not surge like that, but they also idle a helluva lot higher RPM. It can be tuned out, but you sacrifice some power doing so. The Impala is strictly a show car anyhow, so I'm sure the owner isn't to worried about a little compressor surge! It lurches like that cause of a very soft front suspension.
Is he running on alcohol. Alcohol cars normally have that sporadic loping sound. Plus you normally have to shoot some in the blower to get it started, if I'm correct.
The surge is actually caused by the three big throttle plates on the front of the blower hat flexing under vacuum. When the idle drops it’s because the plates are sucked closed and chokes out the air supply. Then they release and idle surges and the cycle is repeated
You'll know when you hear a full race cam and non of those cars are that extreme.Like the gentleman below said,the blower cars in the video do that naturally,Has nothing to do with the cam.
2002 6.0 swap, prc 2.5 heads, 244 246 cam 106 lsa,m6.... Driving the car below 10 mph the car bucks forward with every lope of the cam so I hold the clutch down when im on public roads with lots of stop signs and stop lights, I have c6 also but it has a 4500 Circle D stall so its very street able.
No its NOT called hunting, you get hunting with efi an these cars have machanical injection, what you are hearing is blower surge, its when the mechanical fuel pump is driven off the engine an it builds pressure then purged by the barrel valve to feed the engine fuel an keep it running,when the engine is fed more fuel it raises the rpm an in turn turns the supercharger faster not so creating more boost as its only at idle but letting the engine breath a lil better for those moments till that small amount of fuel is used and the rpms drop again till more fuel is injected an the whole proscess starts again, that combined with a big cam makes the surge more dramatic
I was waiting for someone to catch that. You could have a bone stock cam and it would do the same thing. Guess these guys haven't been around many supercharged rides!!
I can't stand shiny cars that do nothing but look pretty. Screw you ppl that look at that shit and give the owners the impression it's cool. Them things have wheels for a reason, take it outside and get it dirty. More ppl like to see themselves hungry on stuff like this. Besides, cars like that HAVE TO BE OUTSIDE to be enjoyed properly. Can't run them in a show, can't smell them properly, can't hear all the little noises right. Gah, nice cars tho! I have the utmost respect for the guys that spend thousands and break the cars once in a while, THEY got stories to tell though!
obsession PC. when you as a individual spend the crazy amount of money and time on a project can you dictate the outcome. Wish all the money I've spent over the years on cars was dedicated to one that was still in my garage .
LN 125 You probably enjoyed driving the cars though. Not look at the thing in a glass cage and wish it had been cheaper so you could ACTUALLY drive it, no? If you didn't dream about it, you would not even have bought the car in the first place.
+ObsessionPC if you have never taken one apart , completely rebuilt the engine , transmission, rear end and whatever else needed replacing just to do it again because of FUN and done this with many vehicles then I wouldn't expect you to understand . Fun cost's money,i would like to be able to enjoy two of them now but they are long gone and life is different.
+LN 125 +LN 125 Well yeah it costs money, but why spend it, when only you and a few others will ever see what it got you? I have helped with rebuilding a 1967 Camaro, a 2005 Dodge Ram SRT10 and I am doing a Canadian made 1986 Grand Marquis (don't laugh I love that car). All have or will have seen hundreds of man hours, but all of them are on the road with ppl admiring them. I LOVE THAT FACT. I am a technician not just to preserve, but to repair when it breaks. And it breaks when you use it, who cares, it is fun, I understand that. Jay Leno drives all his cars afaik.
My old 11 second nitrous 5.0 Mustang had a motor that was pretty close to stock specs as well but with a bit of nitrous and also had a stock rear axle. I could carry some extra tools as well as a pair of axles but I couldn't also bring along an extra motor if I grenaded it. It's just peace of mind for me that I can get it home and not have to worry about fixing it before the track kicks me out for the night.
+Dan D ....why do you say that? No need for insults brother -> I simply meant that across thousands of hot rods I've stood in front of that turn anywhere from a 12 flat to a 5.85 1/4 mile, ...I've never seen a car lurch like that. Can't you set out your statement and opinion without being derogatory ? Maybe you can't
When a car lopes its not from a "huge cam" you can have a next to stock cam that lopes, the choppy idle comes from lobe seperation which can sound the same on a 242 degree cam as it does on a 310 degree cam. Now the slow idle on this one also has to do with the fact that it has a 14/71 sticking out the hood.
The car is nice. Not taking anything away from that, but with a flat blade screw driver and some knowledge, it could be a hell of a lot nicer. My original statement was that the car is poorly tuned and the surging is blower surge, not a big cam as the title says. The only reason I mention anything about what I have is because you brought it up. I'm proud of every engine I build, so when someone doubts my knowledge and claims I don't know what I'm talking about... I prove them wrong.
its called hunting n sometimes its caused by a fault in the governor. it also can b caused by a stretched or broken spring. when u change the speed setting on the throttle ur actually adjusting the governor but it still sounds super cool on really tough motors such as these..
A lot of people seem to dislike these cars cause they aren’t driven much. Look, a lot of these cars aren’t street legal so that’s a start. Also, most of these cars are pushing hp numbers that dwarfs 1000, so it would be impractical and unsafe to drive them on normal roads. Not to mention gas consumption, and that some of these would be on race fuel. Also, you can daily a car and still have it look as shiny as these cars. Its called some prep work. Spend a good weekend buffing and shining a car, then trailer it over to the show. After the show, go right back to getting down and dirty on the strip
The lumpier a cam is the more the blower will tend to surge at low rpms to keep the engine running. The computer is trying to keep it at a steady low rpm but because of the radical engine specs it can't, so it surges. It all works together guys unless I'm missing something.
because there attached to the suspention, everytime the engine serges it puts load on the suspention. thus the wheelie bars torque with the rear diff every time the engine builds torque while in drive
Back ones are for the actual exhaust and the fronts im assuming are for electric cut outs I've seen several people run the electric cut outs to the side like that
Since you seem to be showing interest in what I have... I'll tell you. It's a 598 cubic inch BBC. Dart block, J&E pistons, AFR 357 heads, Isky cam, Holley Dominator 1050cfm carb, and your favorite brand... an Edelbrock intake. It's pushing 900 horsepower on pump gas. I'll be sure to take a video for you tomorrow:)
Rat Rod Bob Builds. Drive it like it was meant to be !! I bought my wife a Lime Green R/T Challenger...brand new 2015... at the time..off the local showroom floor. I have yet to ride with her driving !! I also have a 06 GT Muskrat..that I've had since 2010. I rode with her once in my GT and was ready to jump out...if she would of slowed down ! Yeah she drives them like that !! I drive fast here n there...but damn..not like her. I think she's workin on her 4th set of rear tires !
I'm not a full time mechanic, and I'm certainly no expert... So don't judge me here lol but 3 years ago, at our local car show, a guy had a nice Nova SS. Nothing special. Just a big block chevy with a 4 barrel Holley carb and a Thumpr cam. But every time the cam would roll, he'd stick his foot in it to get this sound. He was just showing off. I have no idea what this cars "problem" is, but it reminds me of that guy.
That is called "Blower Surge", It is tuning issue. It Happens with a BIG mechanical fuel pump, Mechanical Fuel Injection and a Roots style blower running on methanol. The engine is loading up with to much fuel so it boggs(Too Rich), and when it boggs the fuel pump that is connected to the crank or cam, also slows down, making less fuel, the with less fuel the engine speeds up(Too Lean) then the fuel pump makes too much fuel(Rich) and then boggs, lean, rich, lean, rich etc.
Wow, it seems so bad ass alienated the way they all make that sound. Like machine from another planet of pure Muscle. Great Video. wish I could of seen a burn out.
+D Anderson In this case it's true. My dad had an old chevy truck he rebuilt the engine in himself though that sounded like that without a blower, just a big assed Holley. He traded it for another vehicle that we needed and the guy that got it let the damned thing run out of oil. Not sure what it would run in the 1/4 or how fast it would go flat out, but it sounded evil.
Seth Mullins Oddly enough my dad was the child of a Chevy dealer back in the 50's and 60's so he had many cars over the years that he got to own before my grandfather sold the business. The one thing he owned that wasn't a Chevy for his personal us was also a a '66 coronet. He didn't do the engine in the car himself, but he had to sell it because my mother kept getting speeding tickets and tickets for exhibition of acceleration because she couldn't take off in it without smoking the tires. lol I always wanted to have seen that beast myself.
@oxSupra Try a world crate aluminum block 572 Hemi. Mild grind bumpstick, pumpgas compression, 900+ HP, 800+ ft/lbs of torque. And your making over 600ft/lbs from 2,500 on. Throw a 76mm turbo on it and youll be able to get close to 2,500 HP, set up properly.
If anybody new the real reason is everything ( you need a monster cam ) ( you need a big roots blower )( and it needs to be running a little lean ) one without the other won't work as good. But what I really thought the old car coming off the trailer had the best sound I have heard since the "80s and "90s low tech cars with nice cams.
This was the last vid I watched with my dad before he passed away, he loved it.
SORRY to hear about that!!
donutdoode69 explain what you think is funny about that? Asswipe.
Sorry bro - I lost my old man 10 months ago and we always watch old VW battle stuff.... hope they meet around one day ... peace
@donutdoode69 how is that funny?
Hey man im so sorry to hear i hope nothing but the best for ur future and for god to lead you in a great direction. Bless ur soul
the reason you hear the two supercharged cars RPM pulsating is called boost or blower surge. basically they are not tuned to idle and make too much boost, as the motor leans out the RPMs come up the boost comes up and richens the mixture out and the engine slows down, the RPM's drop low enough to have a lean mixture causing the RPM's to increase, rinse, repeat.
Great explanation, thanks
Skwisgar2322 Correct, thank god atleast one other person in the world knows how this works
I was just about to say that
Skwisgar2322 i just read the entire wikipedia article on carburetors and actually understand this aha
Skwisgar2322 blower lope
Sounds more like blower surge than a huge cam.
You are correct sir
That’s definitely blower surge
Both?
Yes
That’s because it is. Whoever posted doesn’t have a clue I guess.
That isn't the cam making it lurch like that, it's blower surge and a cold engine...
Man, That Sh-Boom Caddy is the baddest sounding most gorgeous rod I've ever seen. The blower surge was putting so much torque to the rear end, that it was
compressing the wheelie bars at every surge. WHAT A RIDE !!!
That was WACKY... is the rearend so loose in that ,,,that its rotating at idle? WTF ???
Blower surge is not a big cam.
Thank you !!! Most people don't know that...
Correct👍
That blower and wild cam sound awesome.
I got the same surge from my normally aspirated standard 360 V8 Mopar by advancing the timing and possible vacuum advance changes.
Then same again from a HP GM V6 with stage 3 cam, all without any blowers or turbo's. Seriously, I got was a sore neck from the surge and sick of popping the bonnet to prove to folks it was not blown. But i must admit, blower surge does sound better.
Stupid people don't know that.
Ripped hoff I got that with my blown 429" big block
I'm glad someone agrees with me! If it were the cam, the mountain motors in prostock cars would be surging. Those cams are HUGE, you only see the surging when a car has a blower.
That's the blower surging not a massive cam
What causes blower surge? Oh, large cams? Oh...
+Joseph Hudson settle down Joseph. It's a rich/lean cycle cause the inconsistent rpms
big cams accentuate it but its not the real cause, mechanical fuel injection is whats causing the rich lean oscillation
Its mainly the blower.
apparently no one here has built a heavy breather.
Trailer queens. All that power and they just drive around in a auditorium.
+Zoe Thompson I hope that was sarcasm :D
+Zoe Thompson LOL ;) good point darlin
right run what you brung.more street cred if you drove it there.keep it real girl.
+Zoe Thompson just because its at a car show doesn't mean they don't race it too.
couldnt of said it any better
Yeah mate she's all stock, never been raced
One owner, never driven, no trades
Probably does actually have low miles. Not streetable.
That Mustang is BADASS! Beautiful car with a killer sound! Love it!!
The pulsating actually has very little to do with the cam. It is actually created by the butterflies on the intake. Since the supercharger creates a vacuum to the butterflies, it forces them to close completely. Wich in turn starves the engine of air. This causes the vacuum to die down from the engine being close to stalling. Which in turn allows the butterflies to open slightly again, because there is no vacuum keeping them closed. This process keeps happening over and over.
*facepalm*
With fixed valve timing, a camshaft is set up to make the most power and torque for a specific engine RPM. When this range is moved to a higher RPM than stock, it affects idle quality. Specifically the idle RPM may not be steady and/or the engine may sound as if it would stall and stop, but it doesnt, hence a "lumpy" cam.
and BTW N/A cars also do it not just superchargers
That wheelie bar tappin the ground is great 🤣👍🏻🤘🏻
That thing sounds like a beast and the sound of these big engines are music to my ears
03:16 it fucking squads from the idling torque :O
Adriaan VB 1200hp+ look up SH boom drag on yt
It's the blower causing it not a huge cam, just saying for those who don't know, that caddys tapping the ground saying YOU WANT SOME OF THIS. Lol
I want to see it run the 1/4 mile.
BILL STACK it'll die in 7 yards
A shaft in the engine on which are the lobes (cams) that operate the valves. The camshaft is driven by the crankshaft, via a belt, chain or gears, at one half the crankshaft speed. One or more camshafts regulate the opening and closing of the valves in all piston engines.
the mustang sounded the best
That's because it's the only one, I'm guessing, that actually gets driven and isn't a dust collector. It definitely is tuned and ready to do more than roll off a trailer.
That idle is kinda jerky.. Might check that MAP sensor..😊 lol
my grandma had a tractor that did the same thing. except she drove her tractor more than they drive this.
beach bummin the last car is over 1200hp it's not a car you drive on the street everyday lol
carolina beachin you need more practice, if your trying to be funny
Christian Mijarez *you're
MR Withersee I didn’t know I was in school. Do you have a teaching degree or some?
Christian Mijarez *or something.
Totally awesome rides! I have to commend anyone with enough skill to create such a beautiful piece of machinery!
I agree these rides are a work of art and fast as hell
The cars are ok, but I came here for the expert blower advice in the comment section.
Well you came to the wrong place. Try Pep Boys smart guy.
If you want to hear great sounding engines, go to a drag race and listen to the Super Stock cars.
The blower overdrive is what is making some of the cars sound so goofy.
wtf is it with trailer queens? Cars are made to be DRIVEN not just on and off a trailer. A majority of these things would break and puke fluids before even going a mile. Beautiful cars, one and all, but seriously, why have a car you can't drive????/
When you have money it doesn't matter haha
Apparently so
Mike Straley i agree with you . ill be at my local track this weekend to see the paint chipped real drag cars
Also, a lot of guys don't live within a reasonable distance from car shows and it's impractical driving the car, to and from, because of the terrible mileage excessive horsepower tends to bring. They'd have to be stopping too often to refuel.
Damn straight, 77 camaro, daily driver, 450 HP. Fuck my paint, it's still a beauty.
Surely some big cams and loud cars. I especially liked the sound of that Ford Mustang.
3:05 -...sounds like a army marching off to war... i love it !!
Guy near me built a cuda with a huge cam, super lopey n/a. It almost dies at idle and sounds wicked
Flames are so overdone. I'm going to have my car painted with a light green haze to look like it's covered with pollen. Also a few spots of bird shit and a dead leaf or two. Maybe I'll use real pollen and bird shit and just clear coat over it. I gotta start patenting these ideas.
lol agreed
Soxruleyanksdrool Lmao!!!! 🤣😂🤣😂 Cheaper than those overdone flames, and at least yours be real!!!!
Man made patina?
I assume you won't be having to quit your day job 😂
You my sir have talent
that's a boost surge the blower is so big that it builds boost immediately and give that cam because the intake is getting so much air with the throttle body barely open
When you're 3 year old son goes "Daddy where can i get me one of those" you know you're a good dad.
AssassinAngling As well as a kid that won’t mind if spend some of his college funds on speed parts and rubber lol
How's that kid now?
If he is or not isn't really important. He is correct. That surge is actually caused by the compressor of the supercharger. Even roots and twin screws can have compressor surge just like a turbo, but unlike a turbo they are belt driven and the surge causes the idle do jump like that. In most cases it can be solved with the right setup, but sometimes it will happen regardless.
Absolutely beautiful looks& sound.
Although... I was told a long time ago that revving up before switching off was not good.
I used to think it was useful to give a final little blast of charge to the battery.
However when you turn off the power, the oil pump stops immediately, and because you revved it first, the pistons are still going up& down, but without any oil pumping: so you're wiping away what should've been left coating everything ready for start-up.
Doing it a few time probably doesn't matter, and on occasion adds to the drama of the show (like here); but on yer everyday runner it's not a good idea.
If things are different these days tell me, I will stand corrected if needs be.
Sounds like broscience bullshit to me bro
Wait what? Oil pumps are engine-driven, aren't they? I don't think I've heard of any cars outside of super niche Formula 1 style stuff not having directly engine driven oil pumps
@@NoorquackerInd Good point. I didn't know this. Thanks.
Although, I'll leave the comment just to see if it gets anymore replies.
You were told this by whom? An internal combustion engineer? Yeah, okay.
@@erikislas6201 I wish I could remember, it must've been over 35 years ago.
Was that first car fucking bagged?! GG
The thing most others miss, is how neatly it idles in N.. a big cam wouldnt idle that smooth.
I love it some ppl think that first car he was giving in the gas to make it surge like that but thats at idle that massive blower does that including the big cam some cars chirp the rear tires just from idling lol
Had a car with a Vacuum leak sounded just as good :)
Heads Up lolololol
Vacuum leaks don't sound good dude
Michael Russo and neither does that
@@justenough730 It does sound good pal
@akrause, Yes the pro mods do not surge like that, but they also idle a helluva lot higher RPM. It can be tuned out, but you sacrifice some power doing so. The Impala is strictly a show car anyhow, so I'm sure the owner isn't to worried about a little compressor surge! It lurches like that cause of a very soft front suspension.
Is he running on alcohol. Alcohol cars normally have that sporadic loping sound. Plus you normally have to shoot some in the blower to get it started, if I'm correct.
The surge is actually caused by the three big throttle plates on the front of the blower hat flexing under vacuum. When the idle drops it’s because the plates are sucked closed and chokes out the air supply. Then they release and idle surges and the cycle is repeated
You'll know when you hear a full race cam and non of those cars are that extreme.Like the gentleman below said,the blower cars in the video do that naturally,Has nothing to do with the cam.
my cammed Camaro does that with no blower
Jack Ripper What model year of Camaro do you have?
2002 6.0 swap, prc 2.5 heads, 244 246 cam 106 lsa,m6.... Driving the car below 10 mph the car bucks forward with every lope of the cam so I hold the clutch down when im on public roads with lots of stop signs and stop lights, I have c6 also but it has a 4500 Circle D stall so its very street able.
Jack Ripper SWEEEEEET!!
Jack Ripper Have you ever taken it to the strip?
I loved the location/s of the exhaust on that last car, very cool!
The rev up and idle isnt lope at all. Its called "hunting". Cam lope is very sloppy and sounds like its missing.
***** lololol
No its NOT called hunting, you get hunting with efi an these cars have machanical injection, what you are hearing is blower surge, its when the mechanical fuel pump is driven off the engine an it builds pressure then purged by the barrel valve to feed the engine fuel an keep it running,when the engine is fed more fuel it raises the rpm an in turn turns the supercharger faster not so creating more boost as its only at idle but letting the engine breath a lil better for those moments till that small amount of fuel is used and the rpms drop again till more fuel is injected an the whole proscess starts again, that combined with a big cam makes the surge more dramatic
Im pretty sure its the blower surging not the cams loping
Not hunting, blower roll.....
Ion Racer It's not blower roll either, it is called blower surge...
I was waiting for someone to catch that. You could have a bone stock cam and it would do the same thing. Guess these guys haven't been around many supercharged rides!!
2:13 angels begin to sing
Now, this brings back some memories, nothing like a cam that makes the whole car rock.
That mustang sounded phenomenal..
It's the mechanical fuel injection making it sound like that. Not really anything to do with the cam.
*****
you need an ice pack.
Nope. It's blower surge.
Kenne bell is a different type of supercharger emtirely
3:06 OMG! that first blue flamed car has a crazy amount of torque, its INSANE! the whole car moves to the right side!!! ME WANTS!!
Damn that candy red Ford was sexy!
The Mustang @ 1:39 has a big cam, the Impala at the beginning has a big ass supercharger on it with compressor surge!
Why the fuck does anybody cares what they do with their cars it's their money!
Edwin Torres
fire ball
When you have a caddy that has to have wheelie bars. You da man
its blower surge
I agree with what you said about them probably not making past the 60ft... But I have seen a good number of 7 to 10 sec cars on bags in the rear...
I can't stand shiny cars that do nothing but look pretty. Screw you ppl that look at that shit and give the owners the impression it's cool. Them things have wheels for a reason, take it outside and get it dirty. More ppl like to see themselves hungry on stuff like this.
Besides, cars like that HAVE TO BE OUTSIDE to be enjoyed properly. Can't run them in a show, can't smell them properly, can't hear all the little noises right. Gah, nice cars tho!
I have the utmost respect for the guys that spend thousands and break the cars once in a while, THEY got stories to tell though!
obsession PC.
when you as a individual spend the crazy amount of money and time on a project can you dictate the outcome.
Wish all the money I've spent over the years on cars was dedicated to one that was still in my garage .
LN 125 You probably enjoyed driving the cars though. Not look at the thing in a glass cage and wish it had been cheaper so you could ACTUALLY drive it, no? If you didn't dream about it, you would not even have bought the car in the first place.
+ObsessionPC
if you have never taken one apart , completely rebuilt the engine , transmission, rear end and whatever else needed replacing just to do it again because of FUN and done this with many vehicles then I wouldn't expect you to understand .
Fun cost's money,i would like to be able to enjoy two of them now but they are long gone and life is different.
+LN 125 +LN 125 Well yeah it costs money, but why spend it, when only you and a few others will ever see what it got you? I have helped with rebuilding a 1967 Camaro, a 2005 Dodge Ram SRT10 and I am doing a Canadian made 1986 Grand Marquis (don't laugh I love that car). All have or will have seen hundreds of man hours, but all of them are on the road with ppl admiring them. I LOVE THAT FACT. I am a technician not just to preserve, but to repair when it breaks. And it breaks when you use it, who cares, it is fun, I understand that. Jay Leno drives all his cars afaik.
My old 11 second nitrous 5.0 Mustang had a motor that was pretty close to stock specs as well but with a bit of nitrous and also had a stock rear axle. I could carry some extra tools as well as a pair of axles but I couldn't also bring along an extra motor if I grenaded it. It's just peace of mind for me that I can get it home and not have to worry about fixing it before the track kicks me out for the night.
That would drive me crazy. Can't be properly tuned,...CAN'T be.
+Glitch you're an idiot
+Dan D ....why do you say that? No need for insults brother -> I simply meant that across thousands of hot rods I've stood in front of that turn anywhere from a 12 flat to a 5.85 1/4 mile, ...I've never seen a car lurch like that. Can't you set out your statement and opinion without being derogatory ? Maybe you can't
its a supercharged engine that's how they run
But why don't the supercharged engines at the drag strips run like that ?
depends how much boost there making some do some dont
When a car lopes its not from a "huge cam" you can have a next to stock cam that lopes, the choppy idle comes from lobe seperation which can sound the same on a 242 degree cam as it does on a 310 degree cam. Now the slow idle on this one also has to do with the fact that it has a 14/71 sticking out the hood.
this doesnt even sound good
Sorry they dont sound like shitty honda four bangers, this is what horsepower and torque sounds like.
honda four banger? sorry i dont like cammed that sound like its stalling
you have to much estrogen content ~!
ya cuz that makes sense
superassassin47 its called a hydraulics cam shaft, long lobes breh
Listen to that thing lope over.....must be like a 2" rise on that cam......love it.
i like how that white classic with the blue flames has that lean to its walk.
The car is nice. Not taking anything away from that, but with a flat blade screw driver and some knowledge, it could be a hell of a lot nicer. My original statement was that the car is poorly tuned and the surging is blower surge, not a big cam as the title says. The only reason I mention anything about what I have is because you brought it up. I'm proud of every engine I build, so when someone doubts my knowledge and claims I don't know what I'm talking about... I prove them wrong.
its called hunting n sometimes its caused by a fault in the governor. it also can b caused by a stretched or broken spring. when u change the speed setting on the throttle ur actually adjusting the governor but it still sounds super cool on really tough motors such as these..
A lot of people seem to dislike these cars cause they aren’t driven much. Look, a lot of these cars aren’t street legal so that’s a start. Also, most of these cars are pushing hp numbers that dwarfs 1000, so it would be impractical and unsafe to drive them on normal roads. Not to mention gas consumption, and that some of these would be on race fuel.
Also, you can daily a car and still have it look as shiny as these cars. Its called some prep work. Spend a good weekend buffing and shining a car, then trailer it over to the show. After the show, go right back to getting down and dirty on the strip
She boom ,last vid while bar tour to match motor cam, very well done
true but you can get idle surge from just a cam but just not near as often as with boost, even untuned turbo setups can cause idle surge.
Lol i chrome casted this to my stereo... Speakers are 3x8s in each tower and 2x 18s.... This didn't disappoint
The lumpier a cam is the more the blower will tend to surge at low rpms to keep the engine running. The computer is trying to keep it at a steady low rpm but because of the radical engine specs it can't, so it surges. It all works together guys unless I'm missing something.
That "Sha-Boom" Caddy is off the hook!
best sound on the internet hands down
Nothing like front drag tires on polished concrete floors ! Blower surge and a big cam, mostly blower surge.
its needs some form of traction bars or ladder bars to stop the rear axla twist thats why they are moving
You can tune the blower surge out of them though. You may not eliminate it but it sure as hell won't surge like that if it's tuned right.
This makes me cry the sound the cams swallow fuel melts my heart
Blower surge or big cam it doesn’t matter. It’s a whole lot for something that doesn’t do more than 5 mph.
because there attached to the suspention, everytime the engine serges it puts load on the suspention. thus the wheelie bars torque with the rear diff every time the engine builds torque while in drive
@DesignersZoomedIn I think that looping rev is a stall converter
Back ones are for the actual exhaust and the fronts im assuming are for electric cut outs I've seen several people run the electric cut outs to the side like that
Since you seem to be showing interest in what I have... I'll tell you. It's a 598 cubic inch BBC. Dart block, J&E pistons, AFR 357 heads, Isky cam, Holley Dominator 1050cfm carb, and your favorite brand... an Edelbrock intake. It's pushing 900 horsepower on pump gas. I'll be sure to take a video for you tomorrow:)
Sorry to hear that man, Im sure he's lovin it up there in hot rod heaven. Keep yourself occupied and your head up, better times are to come.
old school 396/425 modified production when you can count the licks from each cylinder, then you can say big cam.
Lots of money right there ... sounds good. I like to mash on mine though!
Rat Rod Bob Builds. Drive it like it was meant to be !! I bought my wife a Lime Green R/T Challenger...brand new 2015... at the time..off the local showroom floor. I have yet to ride with her driving !! I also have a 06 GT Muskrat..that I've had since 2010. I rode with her once in my GT and was ready to jump out...if she would of slowed down ! Yeah she drives them like that !! I drive fast here n there...but damn..not like her. I think she's workin on her 4th set of rear tires !
Blower surge and cam lope are TWO DIFFERENT ASPECTS OF AN ENGINE! This sounds like blower surge.
Might consider a secondary golf cart motor in the trunk for moments like these.....
Thank you. I tried explaining that and was not taken seriously. It seems you have not yet been ridiculed for your explanation. Good luck
6 years later im still watching this
it is not two different length pipes, it has cut outs on it, it has a total of four exits. you can block off the two out of in front of the doors.
I'm not a full time mechanic, and I'm certainly no expert... So don't judge me here lol but 3 years ago, at our local car show, a guy had a nice Nova SS. Nothing special. Just a big block chevy with a 4 barrel Holley carb and a Thumpr cam. But every time the cam would roll, he'd stick his foot in it to get this sound. He was just showing off. I have no idea what this cars "problem" is, but it reminds me of that guy.
That is called "Blower Surge", It is tuning issue. It Happens with a BIG mechanical fuel pump, Mechanical Fuel Injection and a Roots style blower running on methanol.
The engine is loading up with to much fuel so it boggs(Too Rich), and when it boggs the fuel pump that is connected to the crank or cam, also slows down, making less fuel, the with less fuel the engine speeds up(Too Lean) then the fuel pump makes too much fuel(Rich) and then boggs, lean, rich, lean, rich etc.
Wow, it seems so bad ass alienated the way they all make that sound. Like machine from another planet of pure Muscle. Great Video. wish I could of seen a burn out.
i saw that last car "sh'boom" at the fort street cruise a few years back, that thing is NASTY SOUNDING in person
I call that the crankiest cam, ever! Holy shit, whiplash in 10 feet!
Your funny James. Where did you learn that, at the University of blower surging... LMAO
WOW....the show car crowd is a different breed!
Nothing like the pulse of true horsepower.
Blower Surge, For the Win. Good to see some true HotRods, not just expensive bodywork, with a stock SB chev.
+D Anderson In this case it's true. My dad had an old chevy truck he rebuilt the engine in himself though that sounded like that without a blower, just a big assed Holley. He traded it for another vehicle that we needed and the guy that got it let the damned thing run out of oil. Not sure what it would run in the 1/4 or how fast it would go flat out, but it sounded evil.
My dad also did engines, but his best was a 440 MOPAR in a '66 coronet. That thing was LOUD and too much engine for the car.
Seth Mullins Oddly enough my dad was the child of a Chevy dealer back in the 50's and 60's so he had many cars over the years that he got to own before my grandfather sold the business. The one thing he owned that wasn't a Chevy for his personal us was also a a '66 coronet. He didn't do the engine in the car himself, but he had to sell it because my mother kept getting speeding tickets and tickets for exhibition of acceleration because she couldn't take off in it without smoking the tires. lol I always wanted to have seen that beast myself.
@oxSupra Try a world crate aluminum block 572 Hemi. Mild grind bumpstick, pumpgas compression, 900+ HP, 800+ ft/lbs of torque. And your making over 600ft/lbs from 2,500 on. Throw a 76mm turbo on it and youll be able to get close to 2,500 HP, set up properly.
If anybody new the real reason is everything ( you need a monster cam ) ( you need a big roots blower )( and it needs to be running a little lean ) one without the other won't work as good. But what I really thought the old car coming off the trailer had the best sound I have heard since the "80s and "90s low tech cars with nice cams.
That surge is insane