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Re: Edelbrock CH28 dual quad experiences [Re: AndyF] #549190
12/14/09 11:57 PM 12/14/09 11:57 PM
Joined: Aug 2005
Posts: 4,861
Riverside, Ca
R70RUNNER Offline
master
R70RUNNER  Offline
master

Joined: Aug 2005
Posts: 4,861
Riverside, Ca
Andy, Waiting to see your dyno results! looks great. Do you think the AVS (s) will sync up on them with just the spring tension being set close? or is it even an issue? What fuel pump will/would you use if this goes in a car?

more

Current cars: 2000 Dak Quad Cab, 2012 Challenger,1970 Road Runner, 1994 Firehawk


1966 Coronet post sedan, 1988 Corvette, 2005 Magnum RT all SOLD

R70RUNNER<---VP Inland Empire Chapter of the MPM
Re: Edelbrock CH28 dual quad experiences [Re: R70RUNNER] #549191
12/15/09 04:08 PM 12/15/09 04:08 PM
Joined: Jan 2003
Posts: 5,923
Athens, Greece
Pyper70 Offline
master
Pyper70  Offline
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Joined: Jan 2003
Posts: 5,923
Athens, Greece
For my Dual quad setup I have the Edelbrock 110GPH mechanical on standby when I do the swap...I didnt wanna go with an electric fuel pump....I dont like too much electric stuff (water pump, fans, etc)

Family owned 1969 Charger R/T DualQuad 440/727/GVO/3.55s
Re: Edelbrock CH28 dual quad experiences [Re: Pyper70] #549192
12/15/09 05:19 PM 12/15/09 05:19 PM
Joined: Dec 2005
Posts: 799
Missouri
B
bb74swngr Offline
mopar addict
bb74swngr  Offline
mopar addict
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Joined: Dec 2005
Posts: 799
Missouri
Have been running mine for two years now and am very satisfied. Mild street build.

5669843-frntengcomp2.JPG (1215 downloads)
BigBlock 74 Swinger
Re: Edelbrock CH28 dual quad experiences [Re: bb74swngr] #549193
12/19/09 06:52 PM 12/19/09 06:52 PM
Joined: Nov 2006
Posts: 6,005
Reno, Nevada
NV69B7RR Offline
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Reno, Nevada
Any results yet?

Any advice on what bracket to use for the throttle cable?

72 Demon 340
71 Duster 340 Resto https://board.moparts.org/ubbthreads/show...part=1&vc=1
Re: Edelbrock CH28 dual quad experiences [Re: NV69B7RR] #549194
12/19/09 10:03 PM 12/19/09 10:03 PM
Joined: Jan 2003
Posts: 31,278
Oregon
A
AndyF Offline
I Win
AndyF  Offline
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Joined: Jan 2003
Posts: 31,278
Oregon
Quote:


Any advice on what bracket to use for the throttle cable?



I designed a throttle linkage kit that works with a stock Mopar throttle cable. I'll have these kits avaiable for sale by the end of the year.
Re: Edelbrock CH28 dual quad experiences [Re: AndyF] #549195
12/20/09 12:12 PM 12/20/09 12:12 PM
Joined: Jul 2003
Posts: 4,852
Holland MI Ottawa
2
2boltmain Offline
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2

Joined: Jul 2003
Posts: 4,852
Holland MI Ottawa
Andy I absolutely love that air cleaner assembly! Is the base made of stamped steel? I plan to run that unit with base mods to fit my Offenhauser for the 360.

Keep old mopars alive.
Re: Edelbrock CH28 dual quad experiences [Re: NV69B7RR] #549196
12/20/09 12:51 PM 12/20/09 12:51 PM
Joined: Mar 2006
Posts: 10,069
MI, usa
dvw Offline
I Live Here
dvw  Offline
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Joined: Mar 2006
Posts: 10,069
MI, usa
My friend runs that intake on his 65 Plymouth. 650 Eddys,.557 Mopar solid, bowl jobbed 906, small headers,4.56 It runs 11.50@114. Very consistant. Basicly a street car no cage,subframe connectors,electric water pump. We have never run any other intake though we did try 750 Eddys which were no help. Never changed the stock jetting. We have open spacers under the carbs and the stock Hemi style scoop is sealed to the hood. We used the stock throttle cable.
Doug
Re: Edelbrock CH28 dual quad experiences [Re: dvw] #549197
12/20/09 07:27 PM 12/20/09 07:27 PM
Joined: Nov 2006
Posts: 6,005
Reno, Nevada
NV69B7RR Offline
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NV69B7RR  Offline
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Posts: 6,005
Reno, Nevada
Andy,

How much is the kit? PM me when they're availabe.

Thanks,
Brent

72 Demon 340
71 Duster 340 Resto https://board.moparts.org/ubbthreads/show...part=1&vc=1
Re: Edelbrock CH28 dual quad experiences [Re: NV69B7RR] #549198
12/20/09 11:11 PM 12/20/09 11:11 PM
Joined: Dec 2005
Posts: 799
Missouri
B
bb74swngr Offline
mopar addict
bb74swngr  Offline
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Joined: Dec 2005
Posts: 799
Missouri
I got my sleeper air cleaner done on mine...don't laugh, it hides everything including the NOS. Silly but fun.

5680519-aircleanerfrt.JPG (559 downloads)
Last edited by bb74swngr; 12/20/09 11:12 PM.
BigBlock 74 Swinger
Re: Edelbrock CH28 dual quad experiences [Re: bb74swngr] #549199
12/21/09 12:40 AM 12/21/09 12:40 AM
Joined: Feb 2006
Posts: 1,954
Illinois
SGTFURY62 Offline
top fuel
SGTFURY62  Offline
top fuel

Joined: Feb 2006
Posts: 1,954
Illinois
Any issues running direct linkage versus progressive? I havent fired mine up yet and was wondering if by not running progressive if I'd get too much fuel.
Re: Edelbrock CH28 dual quad experiences [Re: NV69B7RR] #549200
12/22/09 01:28 PM 12/22/09 01:28 PM
Joined: Jan 2003
Posts: 31,278
Oregon
A
AndyF Offline
I Win
AndyF  Offline
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Joined: Jan 2003
Posts: 31,278
Oregon
Quote:

Andy,

How much is the kit? PM me when they're availabe.

Thanks,
Brent



I'll sell you the kit that is in the picture. It is my prototype kit but it works just fine. Shoot me a PM if you're interested.

My 505 motor made a little over 600 hp with the CH-28 setup. I was running twin 500 cfm Edelbrock carbs and a Comp 292HR hyd roller cam.
Re: Edelbrock CH28 dual quad experiences [Re: AndyF] #549201
12/22/09 02:19 PM 12/22/09 02:19 PM

A
Anonymous
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Anonymous
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what did it make hp wise without that thing under the carbs? what rpms?
Re: Edelbrock CH28 dual quad experiences #549202
12/22/09 03:05 PM 12/22/09 03:05 PM
Joined: Jan 2003
Posts: 5,923
Athens, Greece
Pyper70 Offline
master
Pyper70  Offline
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Joined: Jan 2003
Posts: 5,923
Athens, Greece
What are the threads that go inside the Carter fuel inlet? I need to order up a set of the Zinc Plated -6 AN but unclear as to that size

Family owned 1969 Charger R/T DualQuad 440/727/GVO/3.55s
Re: Edelbrock CH28 dual quad experiences #549203
12/22/09 03:28 PM 12/22/09 03:28 PM
Joined: Jan 2003
Posts: 31,278
Oregon
A
AndyF Offline
I Win
AndyF  Offline
I Win
A

Joined: Jan 2003
Posts: 31,278
Oregon
Torque peak is around 4500-4800 rpm, power peak is another 1000 rpm higher. Power dropped off fairly quickly after 6000 rpm but that could be the hyd roller cam as well as the intake. But that is okay, Edelbrock heads on top of a 500 inch shortblock aren't going to make peak power much past 6000 rpm regardless of the cam and intake.
Re: Edelbrock CH28 dual quad experiences [Re: Pyper70] #549204
12/22/09 03:38 PM 12/22/09 03:38 PM
Joined: Oct 2007
Posts: 535
Ohio
racerAL Offline
mopar
racerAL  Offline
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Joined: Oct 2007
Posts: 535
Ohio
Quote:

What are the threads that go inside the Carter fuel inlet? I need to order up a set of the Zinc Plated -6 AN but unclear as to that size

...thread size is 5/8 -20...russell part #640240(blue) 640201(endura) 640243(black)...hope this helps..

-1967 Plymouth Satellite #3555
446 cid on E-85
best 1/4 et 10.577 @ 127.58
best 1/8 et 6.722 @ 100.68
best 60ft. 1.419
Re: Edelbrock CH28 dual quad experiences [Re: bb74swngr] #549205
12/22/09 04:25 PM 12/22/09 04:25 PM
Joined: Dec 2006
Posts: 3,533
Indiana
F
Fury Fan Offline
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Posts: 3,533
Indiana
Quote:

I got my sleeper air cleaner done on mine...don't laugh, it hides everything including the NOS. Silly but fun.



That's tasty. Choice. I love the sleeper look!

Parts I seek: driver doorpanel, 65 Sport Fury, prefer black, needs to be 7-8 on 10 scale, might buy set 16" x 6" Dodge truck wheel(s), from early 70s?, takes 9" dogdish - need for a research job so cheaper is better. 69-73 C-body caliper brackets and/or splashields Send a PM.
Re: Edelbrock CH28 dual quad experiences [Re: Fury Fan] #549206
12/22/09 04:36 PM 12/22/09 04:36 PM
Joined: Dec 2006
Posts: 3,533
Indiana
F
Fury Fan Offline
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Joined: Dec 2006
Posts: 3,533
Indiana
Hey AndyF, that's the aircleaner I suggested to you - looks so much better than that chrome one!

I'd suggest you give me a copy of your book in exchange for such a good tip, but I already bought a copy.

Parts I seek: driver doorpanel, 65 Sport Fury, prefer black, needs to be 7-8 on 10 scale, might buy set 16" x 6" Dodge truck wheel(s), from early 70s?, takes 9" dogdish - need for a research job so cheaper is better. 69-73 C-body caliper brackets and/or splashields Send a PM.
Re: Edelbrock CH28 dual quad experiences [Re: racerAL] #549207
12/23/09 05:54 PM 12/23/09 05:54 PM
Joined: Jan 2003
Posts: 5,923
Athens, Greece
Pyper70 Offline
master
Pyper70  Offline
master

Joined: Jan 2003
Posts: 5,923
Athens, Greece
Quote:

Quote:

What are the threads that go inside the Carter fuel inlet? I need to order up a set of the Zinc Plated -6 AN but unclear as to that size

...thread size is 5/8 -20...russell part #640240(blue) 640201(endura) 640243(black)...hope this helps..



Thank you sir...5/8 -20...check...but for anyone else reading this, the Endura is part # 640241

Family owned 1969 Charger R/T DualQuad 440/727/GVO/3.55s
Re: Edelbrock CH28 dual quad experiences [Re: Pyper70] #549208
12/28/09 01:34 PM 12/28/09 01:34 PM
Joined: Nov 2006
Posts: 6,005
Reno, Nevada
NV69B7RR Offline
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NV69B7RR  Offline
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Joined: Nov 2006
Posts: 6,005
Reno, Nevada
Andy, Did you notice a big difference using the carb spacers? Are they 1"?
What was the hp/tq difference between the two intakes? Just curious.

Also you have a pm.

72 Demon 340
71 Duster 340 Resto https://board.moparts.org/ubbthreads/show...part=1&vc=1
Re: Edelbrock CH28 dual quad experiences [Re: NV69B7RR] #549209
12/28/09 03:10 PM 12/28/09 03:10 PM
Joined: Jan 2003
Posts: 31,278
Oregon
A
AndyF Offline
I Win
AndyF  Offline
I Win
A

Joined: Jan 2003
Posts: 31,278
Oregon
I used 2 inch tall open spacers because it is a big motor and we were running WOT on the dyno. I didn't try it without the spacers so I'm not sure how much it mattered.

The Performer RPM combo used a 1000HP Holley carb. That combo made roughly 20 more ft-lbs and 20 more HP than the CH-28. So only a 3% difference on this motor.

The CH-28 setup with the dual 500 cfm carbs ran a lot smoother than the 1000HP Holley. The motor sounded like a stocker with the CH-28 installed.
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