Thank god I was able to experience this sound on my dads worker car 86 Chevy caprice had 305 we used to lift the air cleaner used to scare the homies they thought it was a cop car when secondaries open best carb by far I used to drive a 76 nova ss to high school and always love that sound was born in 94 always love old cars not like this computerized cars know days
Im 25 with a kid on the way, rebuilding my 2nd M4MC Qjet so i can hand down my big blocks to my kid. Not a lot of us, but some of the youngin's know whats good!
I’m hoping one of my young grandsons will want my 1977 SE Trans Am someday when I’m gone. They love the Smokey and the Bandit movie. Funny this video popped up, I’m looking at a 17057266 q jet for my car today on eBay.
I miss my 79 el camino with a 4 speed from high school. Rolling about 40mph in 2nd and kick it. In a split second it would jump, fall on its face then leave two 20ft black marks and you were GONE!. That ol car was fun lol
@1967 Chevelle LSx nope it wasn't. 20+ years ago and didn't have internet to look it up and was one of MAYBE 3 carbed cars in the school parking lot 🤷 I just thought that's how they were. Still didn't make it any less fun for a 16yo
Really makes me miss my '77. That Quadrajet harmonized beautifully with the glasspacks. I'd go broke with that car today because I could never run at part throttle, straight from idle to WFO.
Had a qjet on my 83 stick shift C10 that had a 350 and a cam, my first vehicle. We lived on a back road and literally every time I would pull onto my street I would open it up for that sound. Pulled in one day and my dad is home. "Have trouble with gas mileage?" Me: "No why? " Maybe if you kept the back burners closed it will get better"
@@lilibethdoherty295 A mildly worked low compression street 400 doesn't need a double pumper, manual or not. The QJ tuned properly will do everything and more, than that Holley does.
@@joequillun7790 I thought so too, until the mechanic I know said give this Double Pumper a try, I dumped the clutch at 4000 Rpm and burned rubber in three gears and noticed that the speedometer was pegged while doing about sixty miles per hour That day I raced a 71 383 Charger and 70 WS-6 442 and their jaw dropped as a cloud of smoke left them standing still!
Childhood memories. A school chum had a much older brother. He had an El Camino with a 307/Powerglide. A Q-Jet and intake from a Camaro RS was swapped for the 2 barrel. Port mismatch who cares. Opened right up.
In the words of Regular car reviews. "That sound as it shifts into the secondaries, thundering like the fist of a God that's had his lawn violated by a game of tag"
Hey Dan, nice video! It looks like your carb is working pretty good. The only thing I notice is that it has a small bog when the secondaries open sometimes. Have you made sure the dampner(choke pull-off) is good, and connected? The OTHER thing I noticed is that it sounds almost like the engine is trying to go down on 7 cylinders at idle. Notice how it shakes? It sounds good otherwise but that rough idle doesn't sound exactly right. Observations: 1. You lost your air cleaner gasket :-) 2. There's supposed to be a rubber seal that goes around the forward vent on the carb to seal it against the aircleaner 3. You appear to have the original high-performance Pontiac carb for that engine. It's an 800-cfm version, has the T/A specific forward vent, the screened center vent and the optimized secondary tip-in ports right at the secondary air-door edge. Don't let that carb get away from that engine, ever. Thanks for the video, hope to see more.
Tyler the engine has a performance cam shafts can only pull about 13 to 14 inches of vacuum at idle that a counts for idle and it is jetted for a 455 . but it doesn't load up or black smoke . it is a pleasure to drive.
I had a Black & Gold 1977 Trans Am way back that the late 70s-early 80s with the original 400 that blew up during normal driving. So I replaced the Engine, Transmission, rear axle and stabilizer bars from a totaled 1973 HO 455. It had been sitting for years so the engine needed bored from rust, but tried to keep it the stock with original parts except it had a Edelbrock Torker Intake I suppose was replaced by the guy I got the car from. I had all machine work done at a professional shop and assembled the engine in my bedroom. And I rebuilt the Quadrajet in my mom's kitchen, and looked up everything I could to reset everything on it, but as with anything mass produced it needed a lil tweaking, like the secondary's wasn't opening to the full 90 degree angle and the top secondary flaps was a lil slower to respond than I thought so I readjusted it a few times till they was almost instant. Anyways, the end results was a 1977 Trans Am that could pull the front tires off ground with a top end of slightly over 160mph. Very fun car...
Ahh, I miss that sound!!😁 Granted these old carburated beasts will never outperform any of the performance cars of today, but they sure did make a joyful noise making what power they had!😉👍
Not sure if you are still monitoring comments or not but here is something I missed when I first viewed your feature. There is un-metered fuel being splashed, actually pulled, into the secondaries through the 2 holes where the secondary metering rods move up and down. 2:50 Maybe it's caused by the air cleaner not being in place for filming or the massive suction when the huge secondaries come online. This caused a hesitation in my car at the drag strip. Solution was to place a small square-shaped piece of electrical tape on the air horn gasket where the 2 holes are located. Cut a small "X" or poke 2 holes where the rods pass through before re-assembly. Problem solved and much better 60-foot times.
i can believe it...... ive got a factory (but no smog) 400 SBC in a 77 K10 5200 pounds and it feels fast...... (and only has 1st and 3rd lol) . has a 72 Q-jet on it..... and just DIALED in lot of low end grunt.... but still pulls at higher RPMS (its not 7000 rpm screamer, but 5600-5800 all day long) . idk.... i just LOVE that 400
@@cole4406 The linkage for the secondary is designed not to allow full opening. The poster evidently made the necessary modifications to allow for full opening.
The air doors are vacuum operated, the actual secondary itself is mechanical, and opens fully at WOT. GM uses the air doors to limit the amount of air going in so it doesn't bog down. They don't open fully on most cars.
No more than 80°, any more starts hindering fuel distribution. Also (some of you already know but for those that don't) remove and rough up the underside of the secondary butterflies (curved end that sucks down) in a vertical-fan pattern. The fuel squirts this backside and doing this helps spread the fuel flow and promote better atomization.
Love the QuadraJet sound (prefer the Thermoquad, but it's all good). Can we take a second to appreciate just how damn nice that transmission bangs 2nd gear?
This is easy to work on. A scanner is not needed. My dads avanti2 had a 350 chevy with a qjet. Slam it to the floor at 6k rpm it pulled hard. Dad didnt drive it much. This was my favorite thing to do when i was growing up.
Same; had one on my little 253 V8 in my VH Commodore. Mightn't have been that quick in reality, but it sure sounded good with those secondaries wide open!
quadrajet on my 350 Sea Ray boat. quadrajet on my Cadillac 500, quadrajet on my 454 Winabago, quadrajet on my 1970 Nova 350. Quadrajet on my 305 Monte SS For so many quadrajets I'm not sure why I consider myself a Holley guy. Holleys sit in the garage on my "expensive" cars. Quadrajets are what I drive tens of thousands of miles a year with.
Newbie here with a quadrajet im trying to learn about. Do the secondaries open under load or by throttle position? (after engine is warm and choke has fully opened)
I have a 77 camaro, vortec 350, rpm intake, GM hotcam 218/224 112, true dual 2-1/4, 2800 stall, 3.42 rear with a qjet (72 primaries).. Runs great but man I do NOT think my secondaries are opening that nicely!! too bad car is 2k miles away :(
@@cole4406 Nope no more than 80° full yawn. The book "rebuild and modify Rochester Quadrajet" by Cliff Ruggles has tons of tips and tuning information to set these carbs up on damn near anything.
You should leave it floored and let it shift with the power on ,thats the way its designed .When you floor it run it up and abruptly let off the throttle your jerking your whole drive line around and just f-ing it up.
I had one of those but I can't remember the cfm, right now I have an Edelbrock 600 cfm square bore but I want one of those back! Donations can be sent to...
Well that's just an ignorant comment. There are lots of reasons why vehicles with carbs aren't sold in the US any more but sure, let's just blame anything that changes ever on them garsh dang lib'rals. 🙄 If anything, this video is proof that nobody took anything away from you... "lost in space"? Uh, to whom? Do you think this video was recorded with a GoPro back in 1978? You want an old muscle car to enjoy for yourself, quit bitching on the UA-cam and go buy or build one. No one is stopping you...
We can keep this alive. The car community as a whole . I would trust that quadrajet over fuel injection. These evs are nothing but trouble. I had a 77 cutlass supreme two door with a 350 olds 4 barrel.it had white interior white vinyl top. It was a medium green metalic with matching rims. It sounded good with dual exhaust but i miss the sound of the secondaries
Love seeing raw fuel pouring in the carb when the secondaries open up ... and yes, there is no sound like a quadrajet opening up to roar ...
Thanks for all the comments it truly does put a smile on my face. I pray that the next generations get to experience this.
Thank god I was able to experience this sound on my dads worker car 86 Chevy caprice had 305 we used to lift the air cleaner used to scare the homies they thought it was a cop car when secondaries open best carb by far I used to drive a 76 nova ss to high school and always love that sound was born in 94 always love old cars not like this computerized cars know days
Im 25 with a kid on the way, rebuilding my 2nd M4MC Qjet so i can hand down my big blocks to my kid. Not a lot of us, but some of the youngin's know whats good!
I’m hoping one of my young grandsons will want my 1977 SE Trans Am someday when I’m gone. They love the Smokey and the Bandit movie. Funny this video popped up, I’m looking at a 17057266 q jet for my car today on eBay.
...hissss--..whoooo- WHOOOOOOOPP!! You can always tell when a QJet has come alive.
I miss my 79 el camino with a 4 speed from high school. Rolling about 40mph in 2nd and kick it. In a split second it would jump, fall on its face then leave two 20ft black marks and you were GONE!. That ol car was fun lol
@1967 Chevelle LSx nope it wasn't. 20+ years ago and didn't have internet to look it up and was one of MAYBE 3 carbed cars in the school parking lot 🤷 I just thought that's how they were. Still didn't make it any less fun for a 16yo
Watching the video until the first time the secondaries pop and then I realize I'm grinning like a teenager. God I've missed that sound.
Really makes me miss my '77. That Quadrajet harmonized beautifully with the glasspacks. I'd go broke with that car today because I could never run at part throttle, straight from idle to WFO.
I love how you wrote WFO and WOT and nobody has said a word about it 🤌🏼😁 untill now... well said! 🤩
Nothing like the sound of a Qjet. Had one in my '70 GTO. Listening to this brings back memories. Thanks!
Had a qjet on my 83 stick shift C10 that had a 350 and a cam, my first vehicle. We lived on a back road and literally every time I would pull onto my street I would open it up for that sound. Pulled in one day and my dad is home. "Have trouble with gas mileage?" Me: "No why? " Maybe if you kept the back burners closed it will get better"
very cool, I'm swapping my Holley 750 D pumper to a Q-jet 800 CFM soon myself. I cant wait to open up that 1968 HO engine with the right carb on it!
If you have a manual trans. you will need that double pumper for when you dump the clutch and pull the wheels off the ground!
@@lilibethdoherty295 A mildly worked low compression street 400 doesn't need a double pumper, manual or not. The QJ tuned properly will do everything and more, than that Holley does.
@@joequillun7790 I thought so too, until the mechanic I know said give this Double Pumper a try, I dumped the clutch at 4000 Rpm and burned rubber in three gears and noticed that the speedometer was pegged while doing about sixty miles per hour That day I raced a 71 383 Charger and 70 WS-6 442 and their jaw dropped as a cloud of smoke left them standing still!
“Cloud of smoke”, yep those double pumps tend to wash the rings a bunch and cause oil smoking:(
Childhood memories. A school chum had a much older brother. He had an El Camino with a 307/Powerglide. A Q-Jet and intake from a Camaro RS was swapped for the 2 barrel. Port mismatch who cares. Opened right up.
In the words of Regular car reviews. "That sound as it shifts into the secondaries, thundering like the fist of a God that's had his lawn violated by a game of tag"
Hey Dan, nice video!
It looks like your carb is working pretty good. The only thing I notice is that it has a small bog when the secondaries open sometimes. Have you made sure the dampner(choke pull-off) is good, and connected?
The OTHER thing I noticed is that it sounds almost like the engine is trying to go down on 7 cylinders at idle. Notice how it shakes? It sounds good otherwise but that rough idle doesn't sound exactly right.
Observations:
1. You lost your air cleaner gasket :-)
2. There's supposed to be a rubber seal that goes around the forward vent on the carb to seal it against the aircleaner
3. You appear to have the original high-performance Pontiac carb for that engine. It's an 800-cfm version, has the T/A specific forward vent, the screened center vent and the optimized secondary tip-in ports right at the secondary air-door edge. Don't let that carb get away from that engine, ever.
Thanks for the video, hope to see more.
Tyler the engine has a performance cam shafts can only pull about 13 to 14 inches of vacuum at idle that a counts for idle and it is jetted for a 455 . but it doesn't load up or black smoke . it is a pleasure to drive.
I thought i heard a cam
I had a Black & Gold 1977 Trans Am way back that the late 70s-early 80s with the original 400 that blew up during normal driving. So I replaced the Engine, Transmission, rear axle and stabilizer bars from a totaled 1973 HO 455. It had been sitting for years so the engine needed bored from rust, but tried to keep it the stock with original parts except it had a Edelbrock Torker Intake I suppose was replaced by the guy I got the car from. I had all machine work done at a professional shop and assembled the engine in my bedroom. And I rebuilt the Quadrajet in my mom's kitchen, and looked up everything I could to reset everything on it, but as with anything mass produced it needed a lil tweaking, like the secondary's wasn't opening to the full 90 degree angle and the top secondary flaps was a lil slower to respond than I thought so I readjusted it a few times till they was almost instant. Anyways, the end results was a 1977 Trans Am that could pull the front tires off ground with a top end of slightly over 160mph. Very fun car...
That ROCKS! LOVE, LOVE, LOVE those secondaries!!!
I love Quadrajets! Great video! Those secondaries were spraying some fuel!
Had a 79 Trans am with the 403 Olds and it hadsuch great sounding secondaries. I ran it a lot without the hood scoop for that reason.
You can see the dollar bills being sucked down the carb! Nice job dude! The European mind cannot comprehend the level of freedom in V8s
Oooh that sound!!! Just does something to me😁 I love it!!!
Love seeing the fuel come out of the pullover jets!
Ahh, I miss that sound!!😁 Granted these old carburated beasts will never outperform any of the performance cars of today, but they sure did make a joyful noise making what power they had!😉👍
The almighty turbo! It's in everything but the kitchen sink now a days..
There are still carbs outperforming efi cars it is just becoming a lost art.
lol there's tons of carbureted beasts outperforming the performance cars of today
best carb ever made!
Not sure if you are still monitoring comments or not but here is something I missed when I first viewed your feature. There is un-metered fuel being splashed, actually pulled, into the secondaries through the 2 holes where the secondary metering rods move up and down. 2:50 Maybe it's caused by the air cleaner not being in place for filming or the massive suction when the huge secondaries come online. This caused a hesitation in my car at the drag strip. Solution was to place a small square-shaped piece of electrical tape on the air horn gasket where the 2 holes are located. Cut a small "X" or poke 2 holes where the rods pass through before re-assembly. Problem solved and much better 60-foot times.
damn.... thats good info
Those 400s were underrated. These engines were close to 260 horsepower
i can believe it...... ive got a factory (but no smog) 400 SBC in a 77 K10
5200 pounds and it feels fast...... (and only has 1st and 3rd lol)
.
has a 72 Q-jet on it..... and just DIALED in
lot of low end grunt.... but still pulls at higher RPMS (its not 7000 rpm screamer, but 5600-5800 all day long)
.
idk.... i just LOVE that 400
This one did the right thing and obviously has the secondary's opening full 90 instead of 75 degrees.
@@cole4406 The linkage for the secondary is designed not to allow full opening. The poster evidently made the necessary modifications to allow for full opening.
The air doors are vacuum operated, the actual secondary itself is mechanical, and opens fully at WOT. GM uses the air doors to limit the amount of air going in so it doesn't bog down. They don't open fully on most cars.
No more than 80°, any more starts hindering fuel distribution. Also (some of you already know but for those that don't) remove and rough up the underside of the secondary butterflies (curved end that sucks down) in a vertical-fan pattern. The fuel squirts this backside and doing this helps spread the fuel flow and promote better atomization.
so I remember hearing that quadrajet ,pause and roar on police cars in seventies tv shows and films!
My dad had a 77 grand prix he built a ram air3 for it. This was his daily and the car would do some kick ass burnouts
The gasket was like nope
Horsepower it's self scared it away.
Yeah ... saw that !
Somehow I saw that coming long before it happened. I asked myself "I wonder if he took off that gasket?" Ooops.
Probably one of the all out best videos on UA-cam. Period.
…I do own a ‘77 T/A…but that has nothing to do with my opinion.
This reminds me of my dads transam. My uncle had an 87 gta trans am
oh man i just love how the gasoline just fly's everywhere!! XD
Love the QuadraJet sound (prefer the Thermoquad, but it's all good). Can we take a second to appreciate just how damn nice that transmission bangs 2nd gear?
that trans does hit the gears nice but I prefer 727 Torqueflite and Thermoquad but GM is good. Fords are JUNK!
The 5 thumbs down don't have a quadrajet lol
This is easy to work on. A scanner is not needed. My dads avanti2 had a 350 chevy with a qjet. Slam it to the floor at 6k rpm it pulled hard. Dad didnt drive it much. This was my favorite thing to do when i was growing up.
Gasket said WHEEEEEEEE!!!💨
Yeah like it when those secondaries open I still have a couple of quads saved for later
I had a quadrajet on my 308 Holden. Love the sound when the back barrels opened. Beautiful carb.
Same; had one on my little 253 V8 in my VH Commodore. Mightn't have been that quick in reality, but it sure sounded good with those secondaries wide open!
yes very nice love those carbs had many 455 Pontiac motors w that carb exactly kicked like a mule lol
Love Q-Jets ! 👍
I'm an Autolite 4100 guy. They are a little flow-limited but that's what cheap Ebay Eaton M122s are for - to stuff air through 'em.
Very well tuned.
that was awesommmmmmm
I knew that gasket was going to come off.
The gasket..."Not today!!"
Music to my ears!!!!
Great video and I miss that sound!
quadrajet on my 350 Sea Ray boat. quadrajet on my Cadillac 500, quadrajet on my 454 Winabago, quadrajet on my 1970 Nova 350. Quadrajet on my 305 Monte SS For so many quadrajets I'm not sure why I consider myself a Holley guy. Holleys sit in the garage on my "expensive" cars. Quadrajets are what I drive tens of thousands of miles a year with.
Great job on the video Dan. Plus you didn't lose the Go-Pro down the carburetor. :)
Newbie here with a quadrajet im trying to learn about. Do the secondaries open under load or by throttle position? (after engine is warm and choke has fully opened)
Reminds me of 77 cutlass with a 350 olds very strong engine
Cool video man, got one of these carbs, still looking for a stupid spring for the butterfly...
1:33 lol i knew the air cleaner gasket was gonna fly off
It gave it's life for the greater good.
You know about secondary air door spring? You can slacken it to get those secondary open quicker
R.I.P. gasket. So much power.
Do you know by any chance what size Jets or Metering Rods you're running in the Carb?
Gasket goes BYE-bye😅 1:35
I have a 77 camaro, vortec 350, rpm intake, GM hotcam 218/224 112, true dual 2-1/4, 2800 stall, 3.42 rear with a qjet (72 primaries).. Runs great but man I do NOT think my secondaries are opening that nicely!! too bad car is 2k miles away :(
Secondaries look like Niagara Falls 😂
Damn, where'd that air cleaner gasket go....?
Opening of the air doors to 90 degrees will build more power. Given this is a late 70s transam
R.I.P. Gasket...
I completely hate q jets but they sure sound fucking awesome....looks awesome too
1:30 that carburetor is adjusted cause quadrajet from factory only opens 75% when you floor it
The air valves are opening past 80 degrees which blocks the fuel discharge ports you can hear the change
@@cole4406 Nope no more than 80° full yawn. The book "rebuild and modify Rochester Quadrajet" by Cliff Ruggles has tons of tips and tuning information to set these carbs up on damn near anything.
Makes me want one on a ford engine
1:33 Air filter gasket is outta there !
@ 1:35 of video you lost your air filter housing gasket, oops!
Wow that thing shifts way to early.
Vacuum secondaries, it's like VTEC, but for men.
Maybe advance the timing just a touch. It does sound good love it
You should leave it floored and let it shift with the power on ,thats the way its designed .When you floor it run it up and abruptly let off the throttle your jerking your whole drive line around and just f-ing it up.
Men will stop talking in mid sentence when they hear the Quadrajet howl !
My Q jet was not linear, when I just touched the secondaries in first gear , it was such violent wheelhop. 69 firebird
I had one of those but I can't remember the cfm, right now I have an Edelbrock 600 cfm square bore but I want one of those back!
Donations can be sent to...
Makes me sad knowing how bad someone hacked the Q-Jet sitting on the 305 in my 82 C10.
badass!
Gasket said adios
At 1:30 - There are easier ways to remove the Air Cleaner gasket...
Bog srill there
These cars today the home mechanic cant fix it
I need 1:31 as my ringtone.
This is the 800 CFM quadrajet right?
Jamie Forrester yes it isa800 cfm look at tylersays video 🤓
Dan Layman Sweet! I remember watching his video a long time ago, but I had forgotten the differences.
😉😉😉😉😎
Just look at that raw gas... Yummy
haha engine go wwwWAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
1:28
2:48
Lost your gasket
that was a test drive🤓
I have a carb just like that 800cfm who wants to buy it it was running a car a week ago just fine
Still have it?
Hey Glenn, did you sell you Carb?
Lost a gasket lol
that qjet is sucking in dust that's going to hurt that engine,needs air filter .
Thanks to liberals, these sounds are forever lost in space. EV's may be faster off the line, but they sound like driving in a closed coffin.
Well that's just an ignorant comment. There are lots of reasons why vehicles with carbs aren't sold in the US any more but sure, let's just blame anything that changes ever on them garsh dang lib'rals. 🙄
If anything, this video is proof that nobody took anything away from you... "lost in space"? Uh, to whom? Do you think this video was recorded with a GoPro back in 1978? You want an old muscle car to enjoy for yourself, quit bitching on the UA-cam and go buy or build one. No one is stopping you...
@@rustyjeep2469 God damn Libtards
We can keep this alive. The car community as a whole . I would trust that quadrajet over fuel injection. These evs are nothing but trouble. I had a 77 cutlass supreme two door with a 350 olds 4 barrel.it had white interior white vinyl top. It was a medium green metalic with matching rims. It sounded good with dual exhaust but i miss the sound of the secondaries