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Stock Intake Manifold vs Edelbrock DP4B/CH4B
#677210
04/22/10 11:58 AM
04/22/10 11:58 AM
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Joined: Jun 2006
Posts: 5,159
CT
GTX MATT
OP
master
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OP
master
Joined: Jun 2006
Posts: 5,159
CT
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Ive got to change the intake manifold on my 440. I have a dual feed Holley and the fast idle adjustment interferes with the pad for the stock choke so I had to remove it, thus no fast idle with the choke and a very smelly, plug fouling warm up cycle. Also, the coil will not mount in the stock location with the huge dual feed bowl in the way.
I can pick up a CH4B from a friend cheap. I would prefer a Performer RPM later on when I change the cam. How much of a gain over the stock manifold is the CH4B? I know it was replaced with the regular Performer which no one seems to like but people seem to like the CH4B. Anyone have any experience going from a stock to the CH4B?
Now I need to pin those needles, got to feel that heat
Hear my motor screamin while I'm tearin up the street
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Re: Stock Intake Manifold vs Edelbrock DP4B/CH4B
[Re: GTX MATT]
#677211
04/22/10 12:16 PM
04/22/10 12:16 PM
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Joined: Jun 2005
Posts: 1,534
Florida
CHRGR69
pro stock
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pro stock
Joined: Jun 2005
Posts: 1,534
Florida
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I have a DP4B on my 383 and the CH4B on my 440. Don't know how much of a gain, but with the same 4bbl Eddys on each, it improved throttle response for sure. Do it. You will be glad you did. I was!
Grandma always said I had "hands of gold"!
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Re: Stock Intake Manifold vs Edelbrock DP4B/CH4B
[Re: dOc !]
#677215
04/22/10 04:50 PM
04/22/10 04:50 PM
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Joined: Oct 2003
Posts: 3,698
NE Oklahoma
Von
master
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master
Joined: Oct 2003
Posts: 3,698
NE Oklahoma
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Quote:
SP2P or a Streetmaster....
Dont agree. The CH4B would be a better choice than either the above. If it were me, Id put a RPM on it now.
72 RR, Pump gas 440, 452s, 3800 lbs, Corked, ET Radials,. 11.33@117.72.
Same car, bone stock 346s, 9.5 comp, baby solid. 12.24@110.
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Re: Stock Intake Manifold vs Edelbrock DP4B/CH4B
[Re: Von]
#677217
04/22/10 05:53 PM
04/22/10 05:53 PM
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Joined: Aug 2007
Posts: 6,095
Valencia, España
NachoRT74
master
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master
Joined: Aug 2007
Posts: 6,095
Valencia, España
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I have see lot of ppl rating the old DP4B/CH4B eddy intakes allmost side to side with RPMs
so it looks is probably something in the middle of performer and RPM ?
With a Charger born in Chrysler assembly plant in Valencia, Venezuela
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Re: Stock Intake Manifold vs Edelbrock DP4B/CH4B
[Re: NachoRT74]
#677218
04/22/10 06:37 PM
04/22/10 06:37 PM
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Joined: Jun 2009
Posts: 644
Minnesota
Barnstorm
mopar
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mopar
Joined: Jun 2009
Posts: 644
Minnesota
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Used a CH4B on a 440 Charger RT and it picked up from 13.90 to 13.75 back in 1970. Otherwise all stock.
The little old lady from Pasadena is back!
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Re: Stock Intake Manifold vs Edelbrock DP4B/CH4B
[Re: 440newport]
#677219
04/22/10 07:07 PM
04/22/10 07:07 PM
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Joined: Jul 2008
Posts: 30,424
Florida STAYcation
dOc !
The village idiot's idiot
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The village idiot's idiot
Joined: Jul 2008
Posts: 30,424
Florida STAYcation
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Quote:
The SP2P is worthless on anything...even a truck or motorhome. They give hardly any extra torque down low, and completely choke the motor. You would lose power going from a stock intake to a SP2P
...and your SPECIFIC experience(s) is what ?
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Re: Stock Intake Manifold vs Edelbrock DP4B/CH4B
[Re: dOc !]
#677220
04/22/10 07:16 PM
04/22/10 07:16 PM
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Joined: Jan 2003
Posts: 4,587
St. John's Newfoundland
440newport
master
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master
Joined: Jan 2003
Posts: 4,587
St. John's Newfoundland
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Quote:
Quote:
The SP2P is worthless on anything...even a truck or motorhome. They give hardly any extra torque down low, and completely choke the motor. You would lose power going from a stock intake to a SP2P
...and your SPECIFIC experience(s) is what ?
I knew a guy who bought a 318 dodge truck with one and a 650 eddy. The truck had 4.10 or 4.56 gears so it had to rev but that motor seemed like it was done at 3000rpm, the intake probably wasn't entirely at fault, but it certainly didn't help.
I've also seen various dyno sheets that showed it really had no advantage down low and gave up torque big time from the mid range on up.
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Re: Stock Intake Manifold vs Edelbrock DP4B/CH4B
[Re: forphorty]
#677223
04/23/10 08:54 AM
04/23/10 08:54 AM
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Joined: Oct 2003
Posts: 3,698
NE Oklahoma
Von
master
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master
Joined: Oct 2003
Posts: 3,698
NE Oklahoma
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Quote:
save it to your favorites for quick reference for when Doc tells you the CH4B is virtually the same as stock  
 
72 RR, Pump gas 440, 452s, 3800 lbs, Corked, ET Radials,. 11.33@117.72.
Same car, bone stock 346s, 9.5 comp, baby solid. 12.24@110.
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Re: Stock Intake Manifold vs Edelbrock DP4B/CH4B
[Re: Von]
#677224
04/23/10 09:25 AM
04/23/10 09:25 AM
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Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck
Not enough dumb comments...yet
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Not enough dumb comments...yet
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
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Quote:
Quote:
save it to your favorites for quick reference for when Doc tells you the CH4B is virtually the same as stock
psst the CH4B is a good intake and works well with mild applications, and is flows better than the stock intake, beside it's not the heat sink or the anchor that the old iron unit is.
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Re: Stock Intake Manifold vs Edelbrock DP4B/CH4B
[Re: 440newport]
#677225
04/23/10 09:28 AM
04/23/10 09:28 AM
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Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck
Not enough dumb comments...yet
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Not enough dumb comments...yet
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
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Quote:
The SP2P is worthless on anything...even a truck or motorhome. They give hardly any extra torque down low, and completely choke the motor. You would lose power going from a stock intake to a SP2P
oh and the SP2P is a joke. it was called the "economizer" that should give you an idea how good it is. I'd rather run a stock iron unit.
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Re: Stock Intake Manifold vs Edelbrock DP4B/CH4B
[Re: dOc !]
#677226
04/23/10 10:10 AM
04/23/10 10:10 AM
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Joined: Jan 2003
Posts: 25,200
Upper Midwest
MoparforLife
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,200
Upper Midwest
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Quote:
The OLD CH4B/DP4B debate !! 
These manifolds are nothing more than a basic-copy of an iron manifold ... cast in aluminum. 
What I would do - if I were you ... is to pick that CH4B ... and SELL IT (to the people who think that it is so valuable) ...and BUY a Perf-RPM !!
BS - CH for RB and DP for B engines are much better than the stock cast iron pieces. A step over the stock or even the Performer which is vertully nothing more than aluminum copy.
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Re: Stock Intake Manifold vs Edelbrock DP4B/CH4B
[Re: forphorty]
#677227
04/23/10 10:46 AM
04/23/10 10:46 AM
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Joined: Jul 2008
Posts: 30,424
Florida STAYcation
dOc !
The village idiot's idiot
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The village idiot's idiot
Joined: Jul 2008
Posts: 30,424
Florida STAYcation
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Quote:
Dyno motor used here is more radical than what you're doing, but even so, here ya be : http://www.moparmusclemagazine.com/techa...test/index.html save it to your favorites for quick reference for when Doc tells you the CH4B is virtually the same as stock
OK ....I will stand-corrected ... with ole S D doing the test and writing the article ... his knowledge and expertise impresses me ... but do you CHERRY PICK his knowledge to only fit your own agenda and bias ?
Me thimks MOST of you Berry-Bumz do !
IF you did-not ... all of you Bumz would be running a Plastic-Fantastic !   
Oh ...and I guess that all-this makes the CH4B I have that is welded-up to fit max-wedge heads worth Big-Bux now ! 
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Re: Stock Intake Manifold vs Edelbrock DP4B/CH4B
[Re: 440newport]
#677228
04/23/10 11:13 AM
04/23/10 11:13 AM
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Joined: Jul 2008
Posts: 30,424
Florida STAYcation
dOc !
The village idiot's idiot
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The village idiot's idiot
Joined: Jul 2008
Posts: 30,424
Florida STAYcation
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Quote:
I knew a guy who bought a 318 dodge truck with one and a 650 eddy. The truck had 4.10 or 4.56 gears so it had to rev but that motor seemed like it was done at 3000rpm, the intake probably wasn't entirely at fault, but it certainly didn't help.
I've also seen various dyno sheets that showed it really had no advantage down low and gave up torque big time from the mid range on up.
I have never heard or seen an SP2P being "done" at 3000 rpm ....but since the ports of that intake are so small .. I would put-the-blame MOSTLY on that intake. But I will also bet that the guy you knew didn't try and massage that combo much .. if not at all.
Your dyno sheets ? ..... I would like to see those showing what you allege. And wasn't there a "dyno topic" here about a week or so ago that claiming an nicely-built A engine(but nothing fantastic) making something-like 850 horsepower ?
Do you KNOW what the purpose and the design of the SP2P was for ?
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