Re: Intake manifold porting.
[Re: moparmat]
#377878
07/17/09 01:59 AM
07/17/09 01:59 AM
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Joined: Jun 2003
Posts: 9,225
Charleston
sixpackgut
Drag Week Mod Champion
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Drag Week Mod Champion
Joined: Jun 2003
Posts: 9,225
Charleston
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you mean the engine wont go over 5500
thats a bad combo unless your pulling houses
Last edited by sixpackgut; 07/17/09 02:01 AM.
Gen 3 power 6.22@110, 9.85@135
Follow @g3hemiswap on instagram
performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
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Re: Intake manifold porting.
[Re: sixpackgut]
#377879
07/17/09 02:08 AM
07/17/09 02:08 AM
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Joined: Jun 2009
Posts: 90
Canada
moparmat
OP
member
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OP
member
Joined: Jun 2009
Posts: 90
Canada
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Its approximately 3500lbs and primarily street driven. the heads will have more work done to them and the cam will be selected to best suit the top end. The intake is where im running into issues with keeping it stock appearing.  the INDY will deffinately feed the engine but doesnt look very stock.
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Re: Intake manifold porting.
[Re: moparmat]
#377880
07/17/09 02:16 AM
07/17/09 02:16 AM
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Joined: Jun 2003
Posts: 9,225
Charleston
sixpackgut
Drag Week Mod Champion
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Drag Week Mod Champion
Joined: Jun 2003
Posts: 9,225
Charleston
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my 493 with edel rpm heads and a tunnel ram was done before 6000 rpm and ran 10.50s at 3800 lbs
put 295 indy EZ's on it with the indy dual plane at least. paint the whole thing orange and no chevy or ford guy will know the difference
Last edited by sixpackgut; 07/17/09 02:17 AM.
Gen 3 power 6.22@110, 9.85@135
Follow @g3hemiswap on instagram
performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
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Re: Intake manifold porting.
[Re: moparmat]
#377882
07/17/09 08:21 AM
07/17/09 08:21 AM
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Joined: Feb 2005
Posts: 4,316
Prospect, PA
BSB67
master
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master
Joined: Feb 2005
Posts: 4,316
Prospect, PA
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Do you have a performance goal? Member Chagjr is running a F.A.S.T. 4bbl comb. presumably on a stock or modified stock intake. First time out, he went 12.0s @ 116+ mph with a poor 60'ft and poor weather conditions. I'm sure he'll be running 11.5s before long. Possibly contact him. The CH4B is an option that will look more stock than an RPM, but should perform better than a stock manifold. Have you actually compared the Indy and RPM intakes side by side? My opinion is that the Indy intake is more stock appearing than the RPM. They are about the same height, but the Indy's runner shape more closely follows the factory style. 
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Re: Intake manifold porting.
[Re: moparmat]
#377883
07/17/09 01:11 PM
07/17/09 01:11 PM
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Joined: Nov 2004
Posts: 2,825
Sk. Canada
RemCharger
master
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master
Joined: Nov 2004
Posts: 2,825
Sk. Canada
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Quote:
Hello all.
ball park of 540 cubes.
I need an intake that will support enough flow to feed this monster.
Hmmmm.Quote:
Only concern about the intake is it should look as close to stock as possible so, the Edelbrock performer or the Mopar factory replacement aluminum intake (same manifolds). My only other option would be the Indy RB dual plane but would like to stick to the factory stock appearance.
2nd option.
Quote:
Who around can or has ported the Mopar or Edelbrock intakes to support that many cubes?
I'm gonna have to go with "no one" for a hundred. 
What are your goals? besides visual of course.
Where are you located?? ie; near SIR?
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Re: Intake manifold porting.
[Re: Bob_Coomer]
#377885
07/17/09 09:35 PM
07/17/09 09:35 PM
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Joined: Jan 2008
Posts: 795
Glendale Az
Darryls-Demon
super stock
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super stock
Joined: Jan 2008
Posts: 795
Glendale Az
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Quote:
Quote:
you mean the engine wont go over 5500
thats a bad combo unless your pulling houses
Gotta agree. That many cubes you need to step up to a Indy, or B1 head.
IMO
Building that many cubes with a stock block isnt a very good idea either....dang by now, your probably mad at me.
Your just not going to get any RPM's out of that engine. Most would shoot me for saying this, but a 470 inch engine with those same heads will be much better runner. And you wont be trying to tear out the stock main webbing too.
Speaking from experience I built a 493 RB engine with Edelbrock heads, it was a nice running street engine. But after 5700 rpm it was like running up against a brick wall. These engines had some camshafts in them too, not just a 3/4 race cam LOL
In other words the intake will not be the bottle neck..its the heads
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Re: Intake manifold porting.
[Re: sixpackgut]
#377888
07/17/09 10:26 PM
07/17/09 10:26 PM
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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:
Quote:
FWIW there is no coomparison of the stock or Performer to the CH4B. And yet the CH4B will look almost as stock as the Performer. 
lets all take a moment to soak that in
Would you rather I said that the CH4B will look almost as stock as the Performer will resemble a stock intake. Ah heck you know what I mean.   In any case the CH is a far superior manifold.
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Re: Intake manifold porting.
[Re: sixpackgut]
#377890
07/17/09 11:00 PM
07/17/09 11:00 PM
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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:
Quote:
Quote:
Quote:
FWIW there is no coomparison of the stock or Performer to the CH4B. And yet the CH4B will look almost as stock as the Performer.
lets all take a moment to soak that in
Would you rather I said that the CH4B will look almost as stock as the Performer will resemble a stock intake. Ah heck you know what I mean. In any case the CH is a far superior manifold.
gotcha, thats good to know because when the 540 sucks the boosters out of the carb, getting to the combustion chamber in a far superior manifold will greatly improve its performance
oh god i'm bored. someone paypal me some money
You are on the wrong page now. You have to go to the charities post in the general section for that. 
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Re: Intake manifold porting.
[Re: moparmat]
#377891
07/18/09 05:41 AM
07/18/09 05:41 AM
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Joined: May 2008
Posts: 5,399
Aurora, Colorado
451Mopar
master
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master
Joined: May 2008
Posts: 5,399
Aurora, Colorado
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Quote:
Hello all.
So I plan on putting together a nice RB based stroker in the ball park of 540 cubes.
I need an intake that will support enough flow to feed this monster. Cam will be carefully selected custom grind, heads will likely be CNC Stealths. Engine will not go over 6500rpm.
Only concern about the intake is it should look as close to stock as possible so, the Edelbrock performer or the Mopar factory replacement aluminum intake (same manifolds). My only other option would be the Indy RB dual plane but would like to stick to the factory stock appearance.
Who around can or has ported the Mopar or Edelbrock intakes to support that many cubes?
With the combination your looking at you will be lucky if the intake/heads flow 300 cfm @ 28", and with 540 cubes the engine will be done at 5,500 rpm, although it should be making over 550 HP?
Your also going to need a huge carb, 850 cfm minimum. If this is a street car, the piston will need to be dished to lower the compression ratio. I would shoot for around 10:1 compression.
To get the flow through the heads, you will likely need a roller lifter cam with over 0.600" lift, and maybe 245+ duration @ 0.050". You may be able to use a high ratio rocker arm (1.7:1) with your combination?
The six-pack intake is decent, and looks stock (for a six pack car?)
I like the Indy dual Plane intake or Performer RPM?
Check out this tech article from Hughes:
http://www.hughesengines.com/TechArticles/602portedintakemanifoldsupdated08272007.php
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Re: Intake manifold porting.
[Re: 451Mopar]
#377892
07/21/09 10:04 PM
07/21/09 10:04 PM
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Joined: Jun 2009
Posts: 90
Canada
moparmat
OP
member
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OP
member
Joined: Jun 2009
Posts: 90
Canada
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I have read that article several times and talked to many people including Dave Hughes himself about porting bone stock/similar to stock intakes. There are guys around running similar combos with "stock" (ported) induction/exhaust in the mid-low 11's and even 10's. F.A.S.T class guys are doing it and even back yard hobbiest's. It can be done if someone is willing to take the time and plan to make it work. Look at Muscle Motors, Hughes engines, MCH, etc. porting iron/aluminum heads for 500+ inch motors making close to 600hp. The only difference with the engine I want is to use a stock ported intake. Its a street car so no need to spin it to the moon. 5500 Max rpm is ok with me if I get 550-600hp and 700ft.lbs. It can work! I recall some posts a while back about 3.23 geared cars with big inch motors in the 10's. all i want to do is use a stock appearing ported intake and heads. Low lift flow seem to be the ticket with the heads. I am not looking to run in the 9's YET. But a stock appearing GTS 440 Dart in the low 11's would be cool! 
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