World's First Rochester Supercharged Fuel Injected Corvette. Zora Duntov's Engineering Marvel.

[@tricycleguy2657]

People hate that they don't know anything about prototypes, therefore you will be attacked as a fake... this is absolutely EPIC stuff... love it

[@63mrl]

"Piston durability project." brilliant way to get it past the bean-counters.

[@mattwhaley9917]

Such a cool-ass piece of Corvette history!

[@SethMulvaney]

Duntov was ahead of his time

[@petercarbin2077]

Thank you and everybody in the video very entertaining I'm disabled and homebound videos like this bring the world to me thank you again

[@GregQuirin]

Thank you for watching Peter and Happy New Year! I will try my best to get some more content posted for you soon. Greg Q

[@petercarbin2077]

@GregQuirin thank you Greg I only wish I could go down there and help in the shop and build motors I'm very mechanically inclined but I'm dyslexic and I am very disabled I can never do that but I do enjoy watching the videos and if you do rock a run at El mirage let me know I live in Lancaster I don't know if I'll be up to it but there might be a possibility I could come out lunch I would appreciate that you guys have a great new year now you get a whole year of new records to break I know you can do it Great luck

[@ronaldrey8474]

Hello , I'm disabled too "work injury" and wanted to 100% agree with you. Not only entertainment but what a great learning tool. ✌️

[@dukeallen432]

Arghhhhhhh

[@petercarbin2077]

@ronaldrey8474 thank you for your reply

[@gofastwclass]

Back when cars were cars and engineers were men who actually built cool stuff, solved problems and tried new ideas. I love these conversations with this generation of people. All the guys just like these two that I learned from are gone, I miss the banter and knowledge transfer.

[@dennistalboo1292]

I THINK THE ZR1 is the best engineering exercise evet

[@gofastwclass]

@@dennistalboo1292 Which ZR1 or the entire group of ZR1 cars from the 1970's on?

[@Metalcrafter]

This was a necessary follow up instead of leaving things hanging. You're very lucky to have access to so many cool, knowledgeable people. Thanks very much.

[@fj9460-lr]

I thought I knew most everything about the classic corvette: but is is brand new for me; it’s so exciting to watch something so unique that it should have been common corvette fare. So grateful for the opportunity to have you share such a marvelous old technology!

[@edsmachine93]

Great video Greg. It has taken these guys years to get the whole story and piece these units together. What a dedication to so all of this. Really is an amazing story. Thanks for sharing. Happy New Year. 👍🇺🇸👍

[@ChristopherOvrebo]

Thanks, I love learning about little known engine history

[@MJPilote]

Wow, you do find the rarest stuff around to make a video about! Just awesome for you to document all this!

[@john2914]

I live in Rochester, and worked in the plant that built it. 😁

[@GregQuirin]

That is pretty cool!would love to hear some of your stories!

[@TheSwaffordHomestead]

Thank you for sharing ! I never heard of these engines. Its amazing what GM had going on in the 50s & 60s! I didn't see the Short, But I will go find it!...Happy New Year!

[@Omnis2]

Thanks for sharing. I'm so, so happy I found your channel. Just outstanding stuff.

[@randalltufts3321]

Love to see it running!

[@davidaarons2488]

Thanks for the info, some rare parts.

[@DocRebuild]

Hi Dave - been decades since we chewed the Corvette Fat. That is a treasure.

[@Addchannelname-bn5cr]

Another fantastic feature on probably the most interesting KZbin channel I watch - thanks Greg ! PS - looking forward to updates on the V12 land speed project & the big block C8 Corvette.

[@mytmousemalibu]

If you're wondering why there are air filters on the fuel rails, these are old technology. Mechanical fuel injector nozzles like these or old Hilborn/Enderle/Kinsler, etc, had air emulsion holes in them. By venturi effect they pull in ambient air into the injected fuel stream to enhance atomization. Mechanical fuel injection is mostly used in racing applications where filtration isnt a concern like a street vehicle. Emulsion style nozzles only really work where there is vacuum ahead of the supercharger or in n/a applications. For boost/positive pressure use, a non-emulsion nozzle is used.

[@jimmybryan6760]

So, this being a supercharged application, yet also using emulsion nozzles, can we assume that the injectors are upstream of the blower and both fuel and air are going through the compressor?

[@mytmousemalibu]

@jimmybryan6760 Yes, they are on top of the blower case where there is no boost.

[@bradmarking9106]

Great video guys!

[@mytmousemalibu]

I was pretty close in the shorts video but that is a pretty stark difference between the 4-51 setup in the blue Corvette. That setup absolutely passes as being correct for the time period and unquestionably as a legitimate real deal, not a replica build with a modern blower.

[@matthewklein9225]

This is a wonderful video. For future videos can you consider keeping the parts he is gesturing at in frame

[@wizardofhyd]

Wow this is amazing, I never knew this existed, thank you so much for sharing this!

[@LimestoneCoastCustoms]

Very interesting Greg! I bet there was plenty of prototypes that people just don't know about so they just say, no way! Can you imagine if Pete & Kevin ever worked for a major manufacturer what kind of things they would have gotten up too? 🤣🤣Love hearing about this stuff, be sure to keep us in the loop if you uncover any more unheard of engine development stuff!! 👍

[@n1352-m1i]

Glad to see this garage looks just like mine (except for the vettes)...

[@tomkeppler3519]

Great videos. I could watch these videos for hours lol

[@ldtenenoff]

More Gold Greg U just keep comin up with nuggetts thank you fer sharing these giants with us lowly folks earth walkers lol just pickin how cool again fer you to there ur making Memoeries GREG!!!!! Happy New Year to u and urs and to Larry & Mr. Crane for letting folks see this G.M gold

[@terrysmith8133]

more on that project would be great.

[@robostyle9773]

Thanks for another great video

[@tricycleguy2657]

You guys hear of George Schreffler? He is the fuelie guy on the east coast

[@phlodel]

I wish I'd have gotten a chance to play with those old fuel injections.

[@patrickshaw8595]

GM's mechanical fuel injection is an exact analogue of the Bendix RSA system. What made them work were 1) An air- diaphragm assembly that generated more force in proportion to venturi vacuum 2) linked by a rod to the fuel pressure delivery regulator 3) That gave zero fuel at zero venturi vacuum and max fuel at max venturi vacuum. The fuel discharge nozzles were "aspirated nozzles" that let atmospheric air vacuum-bleed into the induction. It just keptthe fuel from blobbing and dribbling in when idling around. They work fine (like Hilborn injection) at Wide Open Throttle without the air-bleed aspiration system.

[@clintonsmith9931]

The fuel injection was a mechanical unit. It worked wonderful as long as the diaphragms were good. They were limited by air flow. That’s why the rpm was limited. In the 1960s going to auto tech school at National Technical Schools in LA. We were taught the unit by an old GM Tech. I ran a corvette unit on my 36 Ford in the early 1970s. Most fuel injection from Europe was high pressure injectors, these were not . The pressure in these is regulated by the diaphragms.one dia. Was manifold pressure. The other was large dia. Was by a Ventura around the air inlet. Idle was controlled by air bypass screw. Simple but really wonderful. No electronics. Fist time I heard of the blown setup. The did experiment with a blow through carb setup using a air pump and pressure tank For short burst back when. Boys will play.

[@truthbknown8174]

Super interesting stuff

[@bcbloc02]

Very cool!

[@garylee1544]

Another Awesome Video!

[@Mike44460]

Cool information. Back when General Motors was damn proud to be Chevrolet!

[@edwardwood3622]

Wow was that scattered, I wanted to know about the hood window that looks like the one on the C7.

[@robertjackson2663]

COOLER THAN THE NIPPLES ON A POLAR BEAR !!!!!!!!!!!!!!!

[@Drmcclung]

Now that's leaps and bounds neater than anything Mopar & Bendix had at the time! It's neat to have some of this stuff and the esoteric knowledge keeping them going.

[@tomkeppler3519]

Mopar obviously had some cool stuff going on also

[@alpi57]

Be great if you could copy and post that Super Chevy Magazine article somewhere.

[@simoncastonguay3496]

Wow belle pièce de collection passionnante

[@GregQuirin]

I agree, it is quite the car!

[@markmark2080]

VERY COOL

[@chrisjarvis4449]

Pontiac ohc 6 i has one of them way back when .

[@raymondbrown2645]

The general motors team who invented the system were the only ones who could work on it at the time they understood it took time to catch on years decades later

[@Monty7473]

So basically, these two Corvettes are NOT factory fuel-injected & super-charged cars. These guys researched, rounded up parts & then added the option/options to their cars. So the question is, did any Corvettes arrive at dealerships with this option combo & if so, we’re they sold to the public/consumers this way?

[@larryhofer2266]

Nope , None were ever put is a factory delivers car, only put in the show cars for GM displays, so there are NO ORIGINAL supercharged, injected factory corvettes, It was intended to be a counter to the Ford Thunderbird with the McCulloch supercharger, but the Factory NO RACING AMA agreement between the auto manufacturers shut done Zora's play ground.. The red car belonged to a friend of mine , Dave Payte, and was a factory fuel injected car he had for years. The blower information was discovered when Ken Kayser's book was published in the 1990's. We decided to build one as a fun project. As we progressed, we discovered all the original parts to assemble one. the 451 blowers all needed to have all the seals reversed inside and the rotors re- flocked. It was just simpler to use the Weiend blower which had the same bolt configuration and dimensions. There was no reason to recreate some thing that never was available.. Then there is Dave Cranes blower; It was discovered in tact while we were investigating and building the one for Dave's car. His exactly original blower was installed in the blue car and has been displayed at many of the bigger shows, Mine was assembled to be driven, but has been displayed in many shows and is completely drivable., I am sure Dave Cranes could be also, but the time has not been spent to refine the drivability. These projects have been undertaken because I like building odd and unusual projects. Such as the C8 Big Block engine conversion on U Tube. Makes me happy. As far as the people who are saying these are Bogus and not real, They need to find something that makes them happy, Larry Hofer.

[@jackies8538]

could you tell us what issue the article is in, there's got to be some out there that we could get,

[@THESLlCK]

now I gotta put one of these on my daily driver

[@dunbarautomotive]

Very nice 👌

[@lb9gta307]

Very interesting. The blower was from their parts bin too, unlike the Paxton Ford offered on Thunderbirds. I can't help but wonder what products would have been the result of both Ford and Chevy offering supercharged versions of their sports cars.

[@wizardshome9686]

Super Duper Stuff Thanks for making this video - But this isn't exactly a prototype because there are more than one of them - CORRECT?

[@rickhouston2144]

That's super cool. Also charging it's testing to piston durability 😂. The things they got away with back then

[@E.T.GARAGE]

Amazing

[@ronaldrey8474]

So very interesting. May I kindly ask camera person to show what the hand was pointing at. Great shot of his hand , just wish I could see what he's talking about with each item instead of his hand . You can eventually see but my low IQ I guess it's hard to keep up. Ty

[@MrMrBigro]

Yes I like that can you find anything about ford racing v6 engine just like that secret v8

[@TheJagjr4450]

Power fell off above 5500 because of valve springs... BTW I have seen a number of those blowers on tractors at Vintage Tractor Shows, Oliver Tractors, along with a few others ran GM Detroit Diesels. ... Meryl Dupre... I knew that name from somewhere... just dawned on me Cal mountains looks like the desert, middle of nowhere. We paid him 180k 10 years ago for a 1969 Camaro RS/SS L78 4 spd convertible - I tracked the original owner who had the window sticker the order sheet and the salesman's business card. Owned by Evan or Darren Metropolis now. After he died we got a 40 foot trailer load of rare BB and NOS hipo parts including a 69 Trans Am cross ram air cleaner set up which was from Penske...

[@Iowa599]

What, in that garage, is in the box that hasn't been opened in the longest time?

[@jimanderson1355]

Btw, the correct pronunciation is “Raw Chester”, not “Rock Chester”.

[@tricycleguy2657]

He wasn't lying... I mean that's how I would test "piston durability " hahahahah

[@jarmominkkinen9409]

Want 2 se more👍👍🥂🎆

[@daleolson3506]

To the camera guy let the man talk.

[@will7its]

And point the camera at the engine/car etc....sheesh

[@Fremlin]

Wow you tried to answer your own questions and talked while you’re getting answers.

[@CharlesM-rq5xv]

What's going on with his hood? Does it have a window in it?

[@lassikinnunen]

Yeah.

[@hoost3056]

See, this blue car has all the markings of a factory engineered unit. The maroon car looks like a B&M blower with the mechanical fuel injection adapted to it.

[@rearspeaker6364]

Good point! pretty good job on the copy.

[@GaryRonald-ml3cd]

Did GM sell any cars with this setup or was just an option that someone could buy. If GM sold cars with this option would it be on the build sheet.

[@tomkeppler3519]

No they'd just install it and not say a word. Get real are you serious

[@GaryRonald-ml3cd]

@@tomkeppler3519 So your saying people had to buy the parts and install them on their own. I was just curious about how many of these superchargers are in cars.

[@rearspeaker6364]

And, he has 2 of them.

[@jimanderson1355]

Greg,set down the Red Bull and let these guys talk without the continual interruption.

[@raymondbrown2645]

General public motor company the peoples ideas in inventing auto mobiles .

[@dukeallen432]

Drop the phrase “marry together”. No need to zoom in and out.

[@will7its]

Good stuff but show us the engine lord I was screaming point the camera down a few degrees. We want to see the car not the owners. Or get someone with some vision to operate the camera. You missed a lot of cool stuff in that garage. No offence meant.....

[@donaldnichols2434]

This proves that if you out ran a GM car it was because they let you

[@jrwstl02]

Agreed. And it’s still true today. GM wisely chooses to build $80K corvettes. A bargain.

[@mutantryeff]

!!!

[@321-Gone]

dudes obnoxious. stopped watching at 1:37. Too bad. cool SC

[@stephencurry8552]

Hilarious to see the guy with the messy grey hair attempt to prove he knows more. He never outgrew his adolescence ego wise.

[@SF-wu2mp]

Thats pretty cool! ❤

[@russellweber4334]

Get some blown fuel injected Corvette small block love!