70 Judge RAIV and V continuation

[pont406]

Hello, another first time poster,been following this thread with interest, was looking thru my copy of "The Big Little GTO Book" by Albert Drake, on page 143 there's a picture of a RAV motor with the smog pump,etc on it. there's some quotes from George Delorean, on how he and a partner, tried to strike a deal with Jaguar, to get some engineless Jags, to transplant RAV motors in them, because Jaguar was having trouble passing emissions at that time.it fell thru, but he claims he was doing everything he could, to keep the RAV program alive! interesting info. [img]/ubbthreads/images/graemlins/dunno.gif[/img]

[JLP]

The reason for the post is information. I had it and wanted to share it and hoped it would shed some more light on the RA V discussion. Nothing more, nothing less. I apologise for the confusion. Let's see what happens.

[Steve_Hoog]

Tom

Have you ever seen this document? The seller sent me this one page of 9 over email, I asked him what was it's origin but he told me I would find out from the cover page when I recieved it.

Also the carbs your talking about, do you know if they could be bought seperate or just on the crate motors?

Steve

[Jeff H]

Well, the site I'm trying to load the articles to is limiting the size and it's a little slow to load. I've resized the articles some, but I din't want to go too small. If anyone wants the articles full size, I can email them since I have a cable connection which is pretty quick. Here's the links to the pages of the Street Rodder article:
Rodder Page 1
Rodder Page 2
Rodder Page 3
Rodder Page 4
Rodder Page 5
Rodder Page 6
Rodder Page 7

[tjs44]

as I thought,those motor pics in attach #6 are for the 303 RAV engine.If you see the carb number 4546,that is the 303 Holley carb,also the red dist cap means they had the TI dist and you will notice also the stick shift flywheel.That is the only engine I have ever seen the pump on.All the other motor pics,HotRod cover and others have not shown the pump on a 400 motor.Tom

[Steve_Hoog]

Jeff

Excellent work!!!! Vacum operated flaps!!!!!!!!!!!!!!!!!!!! Where are those at, never heard of them. The article also elludes to the air foils being a later development.

When the article talks about the crank, made me Remember Pete Mc talking about a foundry in Harvey Illinois made them. He asked for a hundred, they told him minimum of 1000. Wonder how long it would take to sell 1000. I'd buy a couple. Be nice if some one with deep pockets would take that project on.

From the photos on the last page, it's very apparent a lot of engineering went into the motor. I wonder who the wonderful person at GM was that pulled the plug on the project.

Steve

[Steve_Hoog]

Tom

In reference to the post a few back, where I attached a pic of a page. This is the description of the auction, have you ever heard of this booklet?

"This booklet was originally released in 1971 by Pontiac Engineering-Special Projects, it contains COMPLETE blueprint-specifications, description and part numbers for all parts of the Ram Air Five Engine. Although the Quality of the copying of this booklet is not great, the information it contains is INVALUABLE. There are nine pages total (b/w), plus an unofficial dyno rating sheet. I will also sell these booklets outright, e-mail me. Picture shown is an actual RA5 engine in a '70 GTO Judge."

[tjs44]

Steve,one reason it was pulled is the engine would not perform as good as a RAIV!EVERYTHING with the combo was no good for making HP.The dual plane intake quits around 6100,the ports are way to big and have good flo but NO velocity,the rods were way too heavy,the exhaust ports were reg pontiac design with turn down ports that have the WORST intake exhaust ratio of ANY pontiac head made.The list goes on as to the complete failure of the project.The heads need big CI,huge lift cams and hi CR to take advantage of the ports.I use a 660 lift cam in my motors.They are a great piece of pontiac history and I have tried to preserve some of it but it was and is a poor combo for racing.Tom

[Steve_Hoog]

Tom

Reality bites!!! But the motor still gets me excited. I can't help it, Pontiac is in my veins.

[Jeff H]

A similar situation to the Chevy small block hemi heads for the 302. They did not better than a slightly worked set of stock heads so the program was scrapped. Those RAV heads have HUGE intake ports. I can see why they didn't perform in real world situations.