Do we Need another choice in Intakes for the 472/500

I usually end up getting 1-3 different cylinder head and/or intake manifold design prototypes produced via stereo lithography each year. After a light cut on the flange and deck surfaces, these "plastic" prototypes are dimensionally within a few thousandths of the CAD model they were produced from, so the process is quite accurate. In the case of intake manifolds, the structural integrity and material stability is sufficient to allow for normal dyno testing of the part (methanol applications excluded). About the only thing they won't handle is a NO2-assisted "sneeze"...and like Forrest Gump, "that's all I have to say about that". :bolt:

The process still isn't cheap by any means -- $3500.00 - $4000.00, but it's still a great way to prove out a concept or test refinements to a design.
 
StanJ said:
In the case of intake manifolds, the structural integrity and material stability is sufficient to allow for normal dyno testing of the part (methanol applications excluded). About the only thing they won't handle is a NO2-assisted "sneeze"...and like Forrest Gump, "that's all I have to say about that". :bolt:
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You know, I never thought about these layered-prototype items being able to hold up to a bit of engine testing. You're giving me bad ideas- a friend of mine down in georgia works for a prototyping place and keeps asking if i have anything "cool" i want built up. I think he's jonesing to play with that 3d prototyping machine. I'll have to give him a ring and ask about it.
 
an edelbrock RPM Air Gap intake would be nice. Or an low profile intake for a small super charger like the Weiand 177.
 
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CPP has made that item for several years, fab up a top for the manifold and enjoy .
.
 
ChevyTurk said:
an edelbrock RPM Air Gap intake would be nice. Or an low profile intake for a small super charger like the Weiand 177.
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Don't make me cry. I had a 177 and sold it to put the EFI on the 500 instead. :banghead:
 
those little blowers are way too small for a big engine imo. Speeding them up in attempt to get more air just makes more heat.
 
dave brode said:
those little blowers are way too small for a big engine imo. Speeding them up in attempt to get more air just makes more heat.
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That's a good point. I've heard the cad 500 needs at least an 871. :scratchchin:
 
At 100% efficiency a 500 cdi engine takes in 250 ci of air per revolution. You would need to turn the 177 blower at 1.4 times just to keep up
Maybe a manifold with 2 of them :scratchchin:
 
MTS Marty AKA Nashillac said:
At 100% efficiency a 500 cdi engine takes in 250 ci of air per revolution. You would need to turn the 177 blower at 1.4 times just to keep up
Maybe a manifold with 2 of them :scratchchin:
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Well, Weiand (or B+M) makes a 250 blower. Too bad they don't make a kit for the 500. :screwy:
 
dave brode said:
those little blowers are way too small for a big engine imo. Speeding them up in attempt to get more air just makes more heat.
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Both Dave and Marty are right about the 177 B&M blower. It is too small. As was said, running it faster in hopes of feeding those cubic inches only serves to beat the air and make it hot.

Those small blowers may look cute but they belong on small engines.

d
 
dave brode said:
74 Novallac said:
Well, Weiand (or B+M) makes a 250 blower.
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Still way too small, I bet, unless you only want 3 or 4 psi.

Dave
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Dave is right. Still small for our size engines. The B&M/Weiand should be good to 5-6 pounds of boost on our motors but after that the power would be less than with a larger blower. Without running the numbers I would say the 250 would be good for 650-700 HP -- depending on cam, heads, porting, ect.

Because on the length of the rotors the 250 cannot be adapted easily to a standard 4 barrel manifold. The blower outlet is too long.

d
 
Oh Tom, it had a good 4 pages worth.

Intakes to extruded honing to blower intakes to blowers.

At least it didn't go to $300 cats

Dave
 
To tie all the different information in Tom's thread together,just think about what might happen if your cat were on the hood of this car and you had a new Cadillac blower manifold with a proper blower attached.

http://www.youtube.com/watch?v=0m_233HXcts

You're welcome.

Terry
 
Inquired about doing a SP manifold for a cadillac.

Here is the thing that would kill it for alot of people.

Doing the manifold properly for a cadillac the manifold would be a little over 7.25 inches tall.

All well and good if you have room however I can see alot of applications where the manifold would not work and doing it any other way would be a huge compromise.
 
cadillac512 said:
To tie all the different information in Tom's thread together,just think about what might happen if your cat were on the hood of this car and you had a new Cadillac blower manifold with a proper blower attached.

http://www.youtube.com/watch?v=0m_233HXcts

You're welcome.

Terry
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terry:
i'd give you $400 for that cat....but it is hard to tell which one was the blower and which one was the blowee..... lol lol lol

ciao,
mario

p.s.: the cat comment should tie this thread up in a nice circle...
:yes: :yes: :yes:
 
Well that sucks. (no pun intended) So the only blower that will feed a 500 is a 8-71? Can you run one of those on a 'reliable' motor? One that you don't have to rebuild every month?
 
ChevyTurk said:
Well that sucks. (no pun intended) So the only blower that will feed a 500 is a 8-71? Can you run one of those on a 'reliable' motor? One that you don't have to rebuild every month?
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I think that depends on how much boost and just how much horsepower you are trying to get out of the 500. I think If you just want a 6 psi boost for street use the 250 would do the job. :twocents:
 
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