IR Individual Runner Carburetion on American V8s are extremely rare and extremely tedious to nail down the perfect tune on. Part of that is that none ever saw production and the other part is that when finally so-nailed no amount of cam overlap will cause them to rump-rump idle. Dummies like that, you know.
Great vid. I am enthused at the opportunity to learn your strict tuning methods for economy with these otherwise wild setups and breaking the myth about fi being so superior. Nothing beats a 1050 for tune ability for economy, drive ability, or performance. Mr Campbell, designed them that way.
My dad had one back in the early 70s that came from Darryl Armstrong. He had bought his whole A/Econorail dragster. I heard that thing actually flowed around 1350
Thanks for the schooling on Dominators, I knew one to see it, but that was the extent of my knowledge. The vintage one is very cool. I think I remember seeing a small cluster of 4 chrome plated velocity stacks being used by some guys on the early carbs, I’ve no idea of the value, useful or just gingerbread.
I suppose carburators will always be misunderstood and if you're a guy who truly understands them you'll always seen like a magician to most people. But it really truly is simple once you learn how they work. I learned the "secret" that's not a secret in aircraft mechanics school in 1990, I'll never forget the day I suddenly had the forehead slap moment in class and I've been a "carb tuning magician" ever since. I'm not special, I just figured it out!
Wow. I didn't realize that you swapped newer models into use and kept those retro beasts for something else. Someone spent a lot of time finishing and shaping those venturis, they're a work of art. The long boosters and the tall outer venturi sure looks like it would lend itself to IR use, maybe to contain the standoff. They look just like the long boosters and 'chokes' of a Weber DCOE but vertical. You made the right call saving those old pieces of history and using a modern, more adjustable off-the-shelf unit. Plus it made a very good video!
I have looked at dominators since the late 80s but I have never seen one like that 71 model. Its a piece of Art. It would be nice to have a good 750 dominator on hand.
I did not know that u could get Dominators buit to "your" specks...!...very cool...!...love the carb videos...u can do alought with holleys..."IF" u know how...!..!...thanks 4 the videos...reguards,Brian
Nice explanation! I have a pair of the 4575 carbs from 1970. Originally those were designed for NASCAR racing on the Boss 429 single 4bbl manifolds. Later Holley released them to the public.
Carbs have always been a mystery for me!!! I'm not the only one either!!! I know how to take them off and put them on and then I hope they work. I do wish I knew more, but time and money are limiting factors.
Really need help with some advice on a couple carbs I’m tuning for two totally different engines. I don’t have anyone to learn from around here. Love the videos sir, thank you. I hear a lot about the dominators in RU-vid videos and hear they’re great.
great vid. please, please run the vintage carbs on the lower manifold as Independent Runner at the track or on a chassis dyno. i agree wholeheartedly about not modifying them. they are historic artifacts. just disassemble them and clean and dry them out after use. no harm no foul. to my knowledge it would be the only vintage dominator IR testing on youtube.
Andy, I know you really love vintage stuff and what you did with the last iteration of Casper truly impressed me. Truthfully you were getting better fuel economy with Casper than I do with a stock 2004 F150. So I have to ask why you stay away from overdrive trannys?
I think I know the answer, teacher!! Wouldn’t a 750cfm 4500 get better MPG due to a stronger booster signal vs. a 750cfm 4150? I eagerly await your follow up vid, Dominator’s and MPG is also a sick fantasy of mine
Hey brother I was hoping you could help me with a question if I put an air fuel sensor in the H part of the H pipe on my Mustang will that give me an accurate reading for how the entire engine is running rather than just having it on one side and having no idea if an injector isn’t working properly on the other side until I’ve got holes in my piston
Where was this carb found and bought from I'm located in ohio and have had a my original holley 4575 holley 1050 carb that was on a 451 rb big block rt motor in a mopar race car i stuff got stuff stolen an I've been searching for it ever since thanks kindly
When you were trying to compare 50 years of technological change between the two carburetors. why didn’t you use the Holly XP for comparison “gold standard “
50 yrs old what does that tell you about how things were made.....have you ever seen a 50yr old computer that still works....not going to happen!... And those carbs will work for another 50yrs!
Funny you should mention that my Atari Pong still woks fine. That said those Carbs were meant for one thing only and that is going fast in a straight line. When Dominators were run in NASCAR they were notorious for running rich and fouling plugs especially at super speedways to the point teams would change spark plugs
@@gullreefclub your Atari pong has never had to live in an engine bay....or under a dash exposed to moisture heat cold....lol😂 it's a dead simple computer.... Try 40 to 60 computer modules of today's cars....hell most pc's don't live more than six years....and their always obsolete when you buy them. But carbs in the right hands are a thing of beauty that you can be passed on to someone else not many things today will last 10 or more yrs.... And yeah I have a Sony trinitron going on 40 yrs still works perfect in a world of planned obsolescence!😥
Theres 50y old computers that work. They tend to be pretty big though, depending what you call a computer. Microprocessors and home computers were more of a 70s thing. Plenty of 50y old integrated circuits still working though. There are hobbyists for them, it's interesting. Theres plenty of 40 year old embedded systems that still manage to work, also 40 year old computers tend to not be that complicated to fix(theres a lot more of them than 70s computers) Also the 50 year old carb here would've needed gasketa and stuff replaced if it were in an engine bay and used for 50 years and was meant to be used for 2 seasons or so. Vintage computers aren't that different of a hobby than vintage cars, tend to be not so useful for daily productive use though but you have to understand that right now its more like prewar cars would've been in the 70s(not like 50s/60s because the prices are going up like bonkers, a commodore pet is like 1k plus dollars now while at one point you could've had that stuff for free.
@@lasskinn474 I tend to agree with most of what you said....but there plenty of pre war cars that have been upgraded and can serve a purpose as in racing or even a daily driver..... The fault with computers is there over complicated development and throw away nature and there the seeds of obsolescence are planted in modern cars. No user serviceable parts inside! Refer service to qualified personnel only! True prophecy that!!!😁👍
Dont TOUCH that old Dommy.......u'll never see it again..... i think slaghammer is gonna get its ass whooped!!........jus sayin....and i'm a pro UTG dude
@@UnityMotorSportsGarage yea, bottlerocket...sorry, brain-fart......i still think you'll get 'em......wish i knew the combos more, but i've heard bottlerocket run.....it DONT have a big cam or anything......i'd get 'em in my '64 Poncho......Casper, (altho havent heard the motor) sounds like the combo mite be a bit more FIESTY!!!....all good tho, and GREAT stuff u guys put out/do!!!......i am thankful!!...PEACE my brother!!