Drag Pak intake plenum specs
#1688883
10/22/14 07:24 AM
10/22/14 07:24 AM
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Moparmal
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If someone could measure the width, height and length of the Drag pak intake plenum...external measurements would be fine - I'd greatly appreciate it.
I want to compare plenum volume with my "modified" Modman.
Thx in appreciation
67 RO23 clone with 6.1 SRT Hemi and dual quads. Soon to have Drag Pak induction and Throttle body.
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Re: Drag Pak intake plenum specs
[Re: Moparmal]
#1688885
10/23/14 04:11 AM
10/23/14 04:11 AM
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Moparmal
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It would really help me as I need to compare plenum volumes btwn my modified intake and what we know works for a carb inducted Gen 3 Maybe now people know the reason for my asking..... Its just 3 lil measurements. Sixpackgut? Steff??? Maybe someone can step up? :
Last edited by Moparmal; 10/23/14 04:38 AM.
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Re: Drag Pak intake plenum specs
[Re: Moparmal]
#1688886
10/23/14 05:31 AM
10/23/14 05:31 AM
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72Swinger
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Wouldn't runner length be important too?
Mopar to the bone!!!
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Re: Drag Pak intake plenum specs
[Re: Moparmal]
#1688887
10/23/14 06:37 AM
10/23/14 06:37 AM
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Joined: Jan 2003
Posts: 3,871 Smyrna, South Carolina
STEFF
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Quote:
It would really help me as I need to compare plenum volumes btwn my modified intake and what we know works for a carb inducted Gen 3
Maybe now people know the reason for my asking.....
Its just 3 lil measurements.
Sixpackgut? Steff??? Maybe someone can step up? :
I can measure it this evening, after work.
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Re: Drag Pak intake plenum specs
[Re: STEFF]
#1688888
10/23/14 07:29 AM
10/23/14 07:29 AM
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Moparmal
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Thanks Steff...cheers mate! 72 Swinger - You are correct - but the issue is more complex than just the intake..... What I want to do first is make sure the plenum volume is not crazy.... Ive already put a temp gun on the exhaust headers and the fuel distribution has improved big time with the divider. Once I get the Carb to Plenum ratio sorted - I can worry about the bear in the room...which is camshaft related and not an easy fix with factory slugs.. Needless to say....Im not running a cam that's 8 degrees retarded out of choice....but that's where we're at with most "off the shelf" cams and factory slugs. Thx for your interest.
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Re: Drag Pak intake plenum specs
[Re: Moparmal]
#1688891
10/25/14 06:00 AM
10/25/14 06:00 AM
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Joined: Mar 2009
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tex013
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Mal, What sort of divider did you use ? I used a a trianguler insert running the length as a semi divider. Took out about 15-20% of the volume. Have not tried since doing motor mods a year ago Tex
New best ET 10.259@129.65 . New best MPH 130.32 Finally fitted a solid cam, stepped it up a bit more 3690lbs through the mufflers New World block 3780lbs 10.278@130.80 . Wowser 10.253@130.24 footbraking from 1500rpm Power by Tex's Automotive
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Re: Drag Pak intake plenum specs
[Re: Porter67]
#1688893
10/25/14 06:12 PM
10/25/14 06:12 PM
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Moparmal
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Porter67 - Im sorry but I cant agree - any intake that shows: - a 4mph improvement going from a single to dual carbs, and - a 2mph improvement just thru the addition of a 1/2" wide block of aluminium, ,,,,,,,,isnt a 'great intake' - especially when you consider this comparison was also verified on the Dyno. The only other change being an extea 2 degrees INITIAL timing..... I appreciate your thoughts on plenum volume but Id like to do the comparison anyhow, FWIW I saw no evidence of fuel "pooling" when I had the top plate off, TEX - As stated - a full height 1/2" wide full length block of aluminium At the time I did the testing the divider was shadowing the venturi holes in the top plate - so less than ideal. Since then Ive profiled the top edge to allow a straight shot from the carbs into the plenum with no interference Steff - No rush man.....whenever you can get to it...
Last edited by Moparmal; 10/25/14 06:26 PM.
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Re: Drag Pak intake plenum specs
[Re: Moparmal]
#1688896
10/26/14 02:13 AM
10/26/14 02:13 AM
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Joined: Mar 2009
Posts: 2,463 Sydney,Australia
tex013
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Mal, I remember Indy saying i would need more rpm,maybe towards 6700. Seems most agree short runner equals higher rpm,plus volume too big equals low rpm performance loss. Thats why mine is off,be fine on 500ci I filled my intake with water,just over 5 litres Tex
New best ET 10.259@129.65 . New best MPH 130.32 Finally fitted a solid cam, stepped it up a bit more 3690lbs through the mufflers New World block 3780lbs 10.278@130.80 . Wowser 10.253@130.24 footbraking from 1500rpm Power by Tex's Automotive
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Re: Drag Pak intake plenum specs
[Re: tex013]
#1688897
10/26/14 04:47 AM
10/26/14 04:47 AM
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Posts: 3,943 Melbourne.....Oz-land
Moparmal
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Cheers Tex...Did that 5 litres include the runners? As far as the intake - I can tell you my G3 is still making power at 7000 - but part of that is about the retarded off the shelf cams they sell for these G3s.... It makes me wonder if the sluggishness off the mark is all intake related....or the 114 ICL has kicked me in the nuts while I was worrying about the right jab from the intake signal.....
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Re: Drag Pak intake plenum specs
[Re: Moparmal]
#1688898
10/26/14 06:55 PM
10/26/14 06:55 PM
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Joined: Mar 2009
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tex013
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Mal, that included runners - I bolted a plate across each intake face . On the street the intake seemed fine - at the track a different story . Killed the 60' but ran same mph. On the dyno made similar power to the M1 single plane I was running at the time . Could not get it to richen up enough . I have since put better flowing heads that woke up the motor but have not retried the modman .Maybe next season Tex
New best ET 10.259@129.65 . New best MPH 130.32 Finally fitted a solid cam, stepped it up a bit more 3690lbs through the mufflers New World block 3780lbs 10.278@130.80 . Wowser 10.253@130.24 footbraking from 1500rpm Power by Tex's Automotive
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Re: Drag Pak intake plenum specs
[Re: Moparmal]
#1688900
10/26/14 10:54 PM
10/26/14 10:54 PM
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Joined: Mar 2009
Posts: 2,463 Sydney,Australia
tex013
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dual quad setup. even added 4 hole spacers helped a bit but added volume back in may simply be too much volume for my cubes and rpm range
Tex
New best ET 10.259@129.65 . New best MPH 130.32 Finally fitted a solid cam, stepped it up a bit more 3690lbs through the mufflers New World block 3780lbs 10.278@130.80 . Wowser 10.253@130.24 footbraking from 1500rpm Power by Tex's Automotive
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