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Best B or RB dual quad intake? #1275112
07/27/12 09:56 PM
07/27/12 09:56 PM
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jersey
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Spaceman Spiff Offline OP
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Spaceman Spiff  Offline OP
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jersey
Whats the best B or RB dual quad inline intake, that still looks kinda stock( no tunnel rams or crazy box intakes)
I'm asking because:

I'd like to put together a F.A.S.T. Like car. Not adhering to the rules to race, but something that looks close to a factory engine.

Here's my idea. Since '58 was the first year for the big block, i'd like to build a 500ish inch stroker. Stealth heads or really good ported irons. Cam will be spec'd by the head ported to match the combo. I'll use HP manifolds, that will have porting/extrude honing.
The holdback is the induction system. The 350 golden commando was dual quad only in '58, so i need a good intake. I'll grind off markings and paint tom match the engine. This engine was an option in any plymouth in '58 from the low line four door plaza, to a station wagon, and Fury.
So what's a really good intake to use? It doesn't have to be a low profile look, it can be raised like a performer rpm style. As long as once painted with the engine it passes for "close" That'll do.
Most likely will be using a 2 door sedan, for weight savings and rigidity.


526 cubes of angry wedge, pushbutton shifted, 9 passenger killer!
Re: Best B or RB dual quad intake? [Re: Spaceman Spiff] #1275113
07/27/12 10:23 PM
07/27/12 10:23 PM
Joined: Jan 2007
Posts: 401
Ohio, USA
Dr-Dave2 Offline
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Ohio, USA
not too many choices with what you are trying to do. Edelbrock CH-28 is all I know of thats any good and still in production, (RB only)
http://www.summitracing.com/parts/EDL-5440/

I would stay away from the Offenhauser offerings for a performance application

Re: Best B or RB dual quad intake? [Re: Spaceman Spiff] #1275114
07/27/12 11:10 PM
07/27/12 11:10 PM
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Oregon
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AndyF Offline
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AndyF  Offline
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Oregon
I have a tech article on my website with some CH-28 test results. That intake worked pretty well on a 505 inch stroker.

www.arengineering.com then click on the tech articles section

Re: Best B or RB dual quad intake? [Re: AndyF] #1275115
07/27/12 11:50 PM
07/27/12 11:50 PM
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ill
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dennismopar73 Offline
top fuel
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M1 (Mopar Performance) if you can find one!!

Re: Best B or RB dual quad intake? [Re: dennismopar73] #1275116
07/28/12 01:32 AM
07/28/12 01:32 AM
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Manitoba, Canada
DaytonaTurbo Offline
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CH-28 is the only decent performing dual quad intake I can think of for what you want to do.

Re: Best B or RB dual quad intake? [Re: DaytonaTurbo] #1275117
07/28/12 05:56 AM
07/28/12 05:56 AM
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Cincinnati OH
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Bishop Offline
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Cincinnati OH
Surf over to Mopar Style and look at the results from there test, a Edelbrock STR 14 & 15 has took their car into the 9's WITH a modified intake.

Brian

7310855-STR-1524BBL.jpg (102 downloads)
Re: Best B or RB dual quad intake? [Re: Spaceman Spiff] #1275118
07/28/12 10:26 AM
07/28/12 10:26 AM
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New York
polyspheric Offline
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No direct experience, but Vizard has tested some 2×4 dual-planes on SBC and reported very significant differences in flow rates between cylinders.
Has anyone tested the CH28?


Boffin Emeritus
Re: Best B or RB dual quad intake? [Re: polyspheric] #1275119
07/28/12 10:39 AM
07/28/12 10:39 AM
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Holly/MI
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Dean_Kuzluzski Offline
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Some may recall...............

Don Dulmage, a freelance writer for Chrysler Power (anyone remember that? Good reading.) ran a 73-74 440 Charger bracket car back in the early 90's or so with a CH-28. He wrote some good things about it, can't remember specifics but I would like to try one some day.


R.I.P.- Gary "Coop" Davis 02/09/68-05/13/04
Re: Best B or RB dual quad intake? [Re: Spaceman Spiff] #1275120
07/28/12 12:28 PM
07/28/12 12:28 PM
Joined: Oct 2004
Posts: 16,479
Canada
CrAzYMoPaRGuY Offline
I Live Here
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Canada
My Jensen Interceptor runs a 440 with a CH28 and two Edelbrock 500 carbs. Runs flawlessly, pulls HARD top end, great low end torque, and it even gets good gas mileage. NO drawbacks IMO.


My Charger also has a CH28 intake, but it has two Edelbrock 600s on it, it also runs great, but I haven't finished tweaking it as it has an "off spot" from time to time, slight hesitation when pounding it from a very low rpm. It's close to being 100%, but not quite yet...


I have just bought another CH28 intake, and two more Edelbrock 500 carbs. I have a warmed over 440 with a decent cam and headers, and will convert to dual quads in the fall.
It's for my...... motorhome.


CrAzYMoPaRGuY
Re: Best B or RB dual quad intake? [Re: polyspheric] #1275121
07/28/12 12:45 PM
07/28/12 12:45 PM
Joined: Jan 2003
Posts: 31,037
Oregon
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AndyF Offline
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AndyF  Offline
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Oregon
Quote:

No direct experience, but Vizard has tested some 2×4 dual-planes on SBC and reported very significant differences in flow rates between cylinders.
Has anyone tested the CH28?




No doubt the flow rate between cylinders is significant. But when we did the dyno tests on the 505 engine the CH-28 worked really well. Idle quality was fantastic. Torque curve looked good, EGT's in all 8 cylinders looked normal, plugs looked good, etc.

My recommendation would be to just run it a little rich to be safe. Unless you put an O2 sensor in each header pipe you won't know for sure. Even then, you would probably have trouble fixing the issue.







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