Suggestions needed for 2nd Gen HEMI intake.
#2466277
03/14/18 11:13 AM
03/14/18 11:13 AM
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Joined: Jan 2003
Posts: 3,048 Richmond, Tx. (Houston)
GTSDave
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Looking for suggestions for an intake manifold for a 426" 2nd gen Hemi.
The catch is it needs to be a cast intake (sheet metal not allowed) and it needs to support 2x4's up to 8-8500 rpm.
What should I be looking for?
This is a race only application with a 4-speed for Nostalgia Super Stock.
-Dave
Last edited by GTSDave; 03/14/18 11:13 AM.
PLEASE Pray for our brothers and sisters in harms way. If you are the owner of a GTS us at the GTS Registry www.gtsregistry.com
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Re: Suggestions needed for 2nd Gen HEMI intake.
[Re: GTSDave]
#2466279
03/14/18 11:20 AM
03/14/18 11:20 AM
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Joined: Jan 2012
Posts: 2,730 Stuttgart, Arkansas
rickseeman
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If you are talking inline I assume the Stage V would be the one. I have used the Mod Man and it ran well but it has a bolt on sheet metal top. You would have to see if it's legal.
2011 Drag Pak Challenger
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Re: Suggestions needed for 2nd Gen HEMI intake.
[Re: GTSDave]
#2466280
03/14/18 11:25 AM
03/14/18 11:25 AM
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Joined: Jan 2003
Posts: 3,048 Richmond, Tx. (Houston)
GTSDave
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The top of the manifold can be fabricated.
1.16 INTAKE MANIFOLD INTAKE MANIFOLD: Sheet metal intake prohibited. Manifolds restricted to commercially available cast units. Top of manifold lid may be modified and fabricated as necessary to accommodate carburetor placement.
-Dave
PLEASE Pray for our brothers and sisters in harms way. If you are the owner of a GTS us at the GTS Registry www.gtsregistry.com
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Re: Suggestions needed for 2nd Gen HEMI intake.
[Re: GTSDave]
#2466310
03/14/18 12:29 PM
03/14/18 12:29 PM
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Joined: Oct 2007
Posts: 4,219 New York
polyspheric
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Got to love the wording. Does that mean yes or no? Depends on your relationship with the tech guy...
Boffin Emeritus
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Re: Suggestions needed for 2nd Gen HEMI intake.
[Re: GTSDave]
#2466312
03/14/18 12:36 PM
03/14/18 12:36 PM
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Joined: Jan 2012
Posts: 2,730 Stuttgart, Arkansas
rickseeman
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Good. Now we need someone (maybe AndyF) to chime in as to which of those 2 would make more power. I have not run the Stage V. I hate say anything good about Indy but I couldn't believe it when we took off a $3,500 Ray Barton intake and put on a Mod Man and only lost 3 hundreths.
2011 Drag Pak Challenger
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Re: Suggestions needed for 2nd Gen HEMI intake.
[Re: rickseeman]
#2466326
03/14/18 01:08 PM
03/14/18 01:08 PM
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Joined: Jan 2004
Posts: 4,634 Motor City
6PKRTSE
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Motor City
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Mmm, I like my Indy Tunnel Ram (of course name has all been welded up & bead lasted off) with dual Dominators. Spun up to 8100 on Dyno. It has a bolt on cast top (not sheet metal though).
1963 Belvedere 440 Max Wedge Tribute 1970 Charger R/T S.E. 440 Six Pack 1970 Challenger R/T, 528 Hemi 1970 Charger 500 S.E. 440 4 BBL 1970 Plymouth Road Runner 383 1974 Chrysler New Yorker 440 1996 2500 RAM 488 V-10 4X4 2004 3500 Dually Cummins 4x4 2012 Challenger R/T Classic.
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Re: Suggestions needed for 2nd Gen HEMI intake.
[Re: GTSDave]
#2466377
03/14/18 02:28 PM
03/14/18 02:28 PM
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Joined: Aug 2003
Posts: 43,744 Bend,OR USA
Cab_Burge
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I Win
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Last edited by Cab_Burge; 03/14/18 02:29 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Suggestions needed for 2nd Gen HEMI intake.
[Re: GTSDave]
#2466409
03/14/18 03:18 PM
03/14/18 03:18 PM
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Joined: Jan 2003
Posts: 3,048 Richmond, Tx. (Houston)
GTSDave
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I purchased a freshened up SS/AH short block that was set up to shift at 9500rpm. So the bottom end will live. We are not going to turn it that high so we can save the valve train LOL. I couldn't find any info for rpm ranges for most of the intakes I have looked at online. Even considered some of the old rat roasters, but there is even less info on those!
I wish I could run a tunnel ram, but they are prohibited. That leaves only a few choices. For the carbs, I plan on using the carbs from my wedge. They are heavily worked over Eddie 800's. Right now they are working well on my 496" wedge shifting at 7600 rpm.
-Dave
PLEASE Pray for our brothers and sisters in harms way. If you are the owner of a GTS us at the GTS Registry www.gtsregistry.com
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Re: Suggestions needed for 2nd Gen HEMI intake.
[Re: GTSDave]
#2466410
03/14/18 03:26 PM
03/14/18 03:26 PM
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Joined: Jan 2003
Posts: 13,496 Marion, South Carolina [><]
an8sec70cuda
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I Live Here
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If you can't run the Indy Tunnelram, then you're gonna want the Stage V inline dual quad manifold. Being that this is for NSS, Indy has the big box style crossram hemi manifold w/ a couple different tops available (twin 4500 or twin 4150). I'm not sure, but I'd bet the Stage V manifold would make more power than that Indy crossram manifold.
Here's the Indy crossram...
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 4 speed, Dana 60 '71 Demon 340, no drivetrain, on blocks behind the barn '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: Suggestions needed for 2nd Gen HEMI intake.
[Re: an8sec70cuda]
#2466411
03/14/18 03:27 PM
03/14/18 03:27 PM
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Joined: Jan 2003
Posts: 13,496 Marion, South Carolina [><]
an8sec70cuda
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I Live Here
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Stage V single plane for comparison...
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 4 speed, Dana 60 '71 Demon 340, no drivetrain, on blocks behind the barn '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: Suggestions needed for 2nd Gen HEMI intake.
[Re: GTSDave]
#2466470
03/14/18 04:50 PM
03/14/18 04:50 PM
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Joined: Sep 2006
Posts: 1,147 Home of the Bluegrass
MoparJunkie
super stock
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super stock
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I'm running the Eddy single plane... It has stock carb spacing! I'm very pleased with it and the Victor Jr heads!
"It takes a Mopar to catch a Mopar” 1971 Roadrunner FJ6 Sassy Grass 505"RB, 18 spline 4 speed, and Dana 60 with 3.54
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Re: Suggestions needed for 2nd Gen HEMI intake.
[Re: GTSDave]
#2466495
03/14/18 05:32 PM
03/14/18 05:32 PM
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Joined: Jan 2012
Posts: 2,730 Stuttgart, Arkansas
rickseeman
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Stuttgart, Arkansas
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I would guess that the Rat Roaster is a dog compared to todays manifolds. I figure the Indy crossram is the same. The new Edelbrock is great for stock cars because you can still use the stock air grabber hood, but for your application, I'm betting on Stage V or Mod Man.
2011 Drag Pak Challenger
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Re: Suggestions needed for 2nd Gen HEMI intake.
[Re: GTSDave]
#2466714
03/15/18 12:53 AM
03/15/18 12:53 AM
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Joined: Jan 2003
Posts: 3,048 Richmond, Tx. (Houston)
GTSDave
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Thanks guys for all the suggestions.
With the RPM we will be running I would think the larger plenums of the Indy, or the old Rat Roaster would probably give an advantage over the intakes with smaller runners.
With my wedge I launch at 5700 and shift at 7600 (4-Speed)with a 4.86 gear. This past week I installed a 5.00 gear and we adjusted 4 link to tame the wheelies.
Idle is and street manners are very low priorities as this will be a high winding race only setup.
What are your thoughts on runner lengths and plenum volumes for these intakes? Does anyone have any links to flow data for the INDY or Stage V intakes? Stock and or modified?
We are allowed to use spacers to increase the volume of the plenum. On my wedge I am running s STR15 with a 1/2 plenum spacer and 1" carb spacers under the 800 cfm eddies. It seems to work well with this engine.
-Dave
PLEASE Pray for our brothers and sisters in harms way. If you are the owner of a GTS us at the GTS Registry www.gtsregistry.com
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Re: Suggestions needed for 2nd Gen HEMI intake.
[Re: GTSDave]
#2466811
03/15/18 10:27 AM
03/15/18 10:27 AM
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Joined: Jan 2003
Posts: 13,496 Marion, South Carolina [><]
an8sec70cuda
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I Live Here
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From everything I've seen, the old Rat Roasters don't come close in power to any of the newer manifolds. None of the old style crossrams do either, but they do look cool.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 4 speed, Dana 60 '71 Demon 340, no drivetrain, on blocks behind the barn '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: Suggestions needed for 2nd Gen HEMI intake.
[Re: GTSDave]
#2466820
03/15/18 10:53 AM
03/15/18 10:53 AM
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Joined: Jan 2003
Posts: 3,048 Richmond, Tx. (Houston)
GTSDave
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Very nice DoubleD. What kind of compression are you running, and what fuel are you using.
-Dave
PLEASE Pray for our brothers and sisters in harms way. If you are the owner of a GTS us at the GTS Registry www.gtsregistry.com
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