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Re: Cowl Hood [Re: 440W8 Duster] #1565801
01/20/14 06:28 PM 01/20/14 06:28 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
MR_P_BODY  Offline
Master

Joined: Jun 2003
Posts: 52,972
Romeo MI
Another thing to think about... when you are traveling
down the road in a rain... which way do the rain drops
go... if up then its not gonna put air into the back
of the cowl... the cowl itself is blocking the upward
flow if its close enough to give the low pressure
area needed at the back of it... so between the low
pressure created from the intake/pistons and the
cowl close enough it should get good flow.... I was
gonna do a test on my car(P-Body) and a guy that was
running a cowl.. we both had similar speeds but he
blew up the engine and I never got the chance
Re: Cowl Hood [Re: bad1970dust] #1565802
01/20/14 07:09 PM 01/20/14 07:09 PM
Joined: Sep 2004
Posts: 1,499
San Antonio,TX
4
440W8 Duster Offline OP
pro stock
440W8 Duster  Offline OP
pro stock
4

Joined: Sep 2004
Posts: 1,499
San Antonio,TX
Quote:

my 71 with cowl




Is that in Humboldt Ia?

70 Duster W8 motor.
1.29 60ft 5.79 1/8 at 120 mph
glide with 1.80 gear
@3170 lbs.
Re: Cowl Hood [Re: MR_P_BODY] #1565803
01/20/14 09:25 PM 01/20/14 09:25 PM
Joined: Aug 2003
Posts: 1,575
K
KOS Offline
pro stock
KOS  Offline
pro stock
K

Joined: Aug 2003
Posts: 1,575
Quote:

Quote:

Quote:

My car hates the cowl hood

I run a 5inch glasstek similar to Johns.I have tried 3 to 4 air pans,blocking this and that and different carb spacers and it dirty's the plugs after one run.

I also run a max effort carb that's 2.20 bore that's made for the most air you can throw at it.



Chris how does Butch Kemp run so quick with a cowl hood on the Mustang and its sealed to the hood



You need to look at the distance from the windshield..
close(about 1" to max 2")... this is mine but its
no A-body... I set this up up so I could hinge it
but I am thinking about making a slider on the back
opening to get it close for racing




my car hates it also.....glasstek 6"trimmed to 1.5" off windsheild as per instruction.factory 6pak hood worth solid tenth to 2 over the cowl.tried it with no hood also and went faster by about the same as 6pak through an aircleaner though in a dart.

Last edited by KOS; 01/20/14 09:29 PM.
Re: Cowl Hood [Re: KOS] #1565804
01/20/14 09:35 PM 01/20/14 09:35 PM
Joined: Feb 2003
Posts: 3,456
Out West
4
408strokerdart Offline
master
408strokerdart  Offline
master
4

Joined: Feb 2003
Posts: 3,456
Out West
Does pro stock allow cowl hood scoops? If they do, why doesn't everyone run one?

Personally, I am convinced there is no substitution for clean/cool air.
Re: Cowl Hood [Re: KOS] #1565805
01/20/14 10:03 PM 01/20/14 10:03 PM
Joined: Jul 2004
Posts: 19,317
State of confusion
T
Thumperdart Offline
I Live Here
Thumperdart  Offline
I Live Here
T

Joined: Jul 2004
Posts: 19,317
State of confusion
Quote:

Quote:

Quote:

Quote:

My car hates the cowl hood

I run a 5inch glasstek similar to Johns.I have tried 3 to 4 air pans,blocking this and that and different carb spacers and it dirty's the plugs after one run.

I also run a max effort carb that's 2.20 bore that's made for the most air you can throw at it.



Chris how does Butch Kemp run so quick with a cowl hood on the Mustang and its sealed to the hood



You need to look at the distance from the windshield..
close(about 1" to max 2")... this is mine but its
no A-body... I set this up up so I could hinge it
but I am thinking about making a slider on the back
opening to get it close for racing




my car hates it also.....glasstek 6"trimmed to 1.5" off windsheild as per instruction.factory 6pak hood worth solid tenth to 2 over the cowl.tried it with no hood also and went faster by about the same as 6pak through an aircleaner though in a dart.



Now I`m definately gonna make my 6-pack scoop work..............

72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: Cowl Hood [Re: headhunter] #1565806
01/20/14 10:37 PM 01/20/14 10:37 PM
Joined: Jun 2010
Posts: 3,112
LONG ISLAND
fishy340 Offline
master
fishy340  Offline
master

Joined: Jun 2010
Posts: 3,112
LONG ISLAND
Quote:

what about both



Now that this car is a streeter,want to sell the hood or trade lmk.

Thats the set up i want

Re: Cowl Hood [Re: 408strokerdart] #1565807
01/20/14 11:07 PM 01/20/14 11:07 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
MR_P_BODY  Offline
Master

Joined: Jun 2003
Posts: 52,972
Romeo MI
Quote:

Does pro stock allow cowl hood scoops? If they do, why doesn't everyone run one?

Personally, I am convinced there is no substitution for clean/cool air.



Pro Sock says it HAS to be front facing
EDIT
I agree with you...I like my scoop facing forward
and up in the clean air stream

Last edited by MR_P_BODY; 01/20/14 11:14 PM.
Re: Cowl Hood [Re: MR_P_BODY] #1565808
01/21/14 01:55 AM 01/21/14 01:55 AM
Joined: Sep 2009
Posts: 176
South Bend, Indiana
mistress Offline
member
mistress  Offline
member

Joined: Sep 2009
Posts: 176
South Bend, Indiana
My 8 inch glasstek
Re: Cowl Hood [Re: mistress] #1565809
01/21/14 02:10 AM 01/21/14 02:10 AM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
MR_P_BODY  Offline
Master

Joined: Jun 2003
Posts: 52,972
Romeo MI
Quote:

My 8 inch glasstek



Is your scoop sealed... where is the seal at in relation
to the hood itself... also where are the carbs in the
scoop... how far from the top of the carbs to the scoop
Re: Cowl Hood [Re: MR_P_BODY] #1565810
01/21/14 11:13 AM 01/21/14 11:13 AM
Joined: Sep 2009
Posts: 176
South Bend, Indiana
mistress Offline
member
mistress  Offline
member

Joined: Sep 2009
Posts: 176
South Bend, Indiana
Quote:

Quote:

My 8 inch glasstek



Is your scoop sealed... where is the seal at in relation
to the hood itself... also where are the carbs in the
scoop... how far from the top of the carbs to the scoop




Carbs are pretty much center of scoop and the front carb is about 3 inches from scoop, rear carb a little more clearance. There is about an inch and half clearance to windshield and carbs are not sealed to hood.
Re: Cowl Hood [Re: mistress] #1565811
01/21/14 12:10 PM 01/21/14 12:10 PM
Joined: Sep 2004
Posts: 1,499
San Antonio,TX
4
440W8 Duster Offline OP
pro stock
440W8 Duster  Offline OP
pro stock
4

Joined: Sep 2004
Posts: 1,499
San Antonio,TX
Quote:

Quote:

Quote:

My 8 inch glasstek



Is your scoop sealed... where is the seal at in relation
to the hood itself... also where are the carbs in the
scoop... how far from the top of the carbs to the scoop




Carbs are pretty much center of scoop and the front carb is about 3 inches from scoop, rear carb a little more clearance. There is about an inch and half clearance to windshield and carbs are not sealed to hood.



So does it run quicker sealed to the hood or not sealed?

70 Duster W8 motor.
1.29 60ft 5.79 1/8 at 120 mph
glide with 1.80 gear
@3170 lbs.
Re: Cowl Hood [Re: 440W8 Duster] #1565812
01/21/14 12:12 PM 01/21/14 12:12 PM
Joined: Sep 2004
Posts: 1,499
San Antonio,TX
4
440W8 Duster Offline OP
pro stock
440W8 Duster  Offline OP
pro stock
4

Joined: Sep 2004
Posts: 1,499
San Antonio,TX
On another note. SS/AH do they seal their carbs or not to the scoop?

70 Duster W8 motor.
1.29 60ft 5.79 1/8 at 120 mph
glide with 1.80 gear
@3170 lbs.
Re: Cowl Hood [Re: 440W8 Duster] #1565813
01/21/14 12:24 PM 01/21/14 12:24 PM
Joined: Sep 2009
Posts: 176
South Bend, Indiana
mistress Offline
member
mistress  Offline
member

Joined: Sep 2009
Posts: 176
South Bend, Indiana
Quote:

Quote:

Quote:

Quote:

My 8 inch glasstek



Is your scoop sealed... where is the seal at in relation
to the hood itself... also where are the carbs in the
scoop... how far from the top of the carbs to the scoop




Carbs are pretty much center of scoop and the front carb is about 3 inches from scoop, rear carb a little more clearance. There is about an inch and half clearance to windshield and carbs are not sealed to hood.



So does it run quicker sealed to the hood or not sealed?



I had a smaller cowl hood with a single carb and sealed it to hood and didn't make a bit of difference, now with the tunnel ram and two 4's i didn't mess with trying to seal the carbs on this hood.
Re: Cowl Hood [Re: mistress] #1565814
01/21/14 12:28 PM 01/21/14 12:28 PM
Joined: Sep 2004
Posts: 1,499
San Antonio,TX
4
440W8 Duster Offline OP
pro stock
440W8 Duster  Offline OP
pro stock
4

Joined: Sep 2004
Posts: 1,499
San Antonio,TX
Quote:

Quote:

Quote:

Quote:

Quote:

My 8 inch glasstek



Is your scoop sealed... where is the seal at in relation
to the hood itself... also where are the carbs in the
scoop... how far from the top of the carbs to the scoop




Carbs are pretty much center of scoop and the front carb is about 3 inches from scoop, rear carb a little more clearance. There is about an inch and half clearance to windshield and carbs are not sealed to hood.



So does it run quicker sealed to the hood or not sealed?



I had a smaller cowl hood with a single carb and sealed it to hood and didn't make a bit of difference, now with the tunnel ram and two 4's i didn't mess with trying to seal the carbs on this hood.



Do you have a SB or BB?

70 Duster W8 motor.
1.29 60ft 5.79 1/8 at 120 mph
glide with 1.80 gear
@3170 lbs.
Re: Cowl Hood [Re: 440W8 Duster] #1565815
01/21/14 01:14 PM 01/21/14 01:14 PM
Joined: Jan 2003
Posts: 13,365
Marion, South Carolina [><]
an8sec70cuda Offline
I Live Here
an8sec70cuda  Offline
I Live Here

Joined: Jan 2003
Posts: 13,365
Marion, South Carolina [><]
FWIW...I used to run a six pack hood on my cuda. It ran about a tenth quicker and 1 mph faster sealed than it did unsealed.

I switched to a 5" cowl hood, unsealed, and it ran the same as the sealed six pack hood.
This was on a combo that I'd run for years.

I have experimented w/ sealing the cowl hood to the carb but haven't seen anything really.

CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
Re: Cowl Hood [Re: 440W8 Duster] #1565816
01/21/14 01:50 PM 01/21/14 01:50 PM
Joined: Sep 2009
Posts: 176
South Bend, Indiana
mistress Offline
member
mistress  Offline
member

Joined: Sep 2009
Posts: 176
South Bend, Indiana
Quote:

Quote:

Quote:

Quote:

Quote:

Quote:

My 8 inch glasstek



Is your scoop sealed... where is the seal at in relation
to the hood itself... also where are the carbs in the
scoop... how far from the top of the carbs to the scoop




Carbs are pretty much center of scoop and the front carb is about 3 inches from scoop, rear carb a little more clearance. There is about an inch and half clearance to windshield and carbs are not sealed to hood.



So does it run quicker sealed to the hood or not sealed?



I had a smaller cowl hood with a single carb and sealed it to hood and didn't make a bit of difference, now with the tunnel ram and two 4's i didn't mess with trying to seal the carbs on this hood.




Do you have a SB or BB?



BB
Re: Cowl Hood [Re: 440W8 Duster] #1565817
01/21/14 02:00 PM 01/21/14 02:00 PM
Joined: Dec 2008
Posts: 141
iowa
B
bad1970dust Offline
"Hollywood"
bad1970dust  Offline
"Hollywood"
B

Joined: Dec 2008
Posts: 141
iowa
Quote:

Quote:

my 71 with cowl




Is that in Humboldt Ia?


Yes our local skating rink lol

Re: Cowl Hood [Re: mistress] #1565818
01/21/14 07:13 PM 01/21/14 07:13 PM
Joined: Jan 2004
Posts: 3,837
Central Missouri Fort Leonard...
mopar65 Offline
master
mopar65  Offline
master

Joined: Jan 2004
Posts: 3,837
Central Missouri Fort Leonard...
Quote:

Quote:

Quote:

Quote:

Quote:

My 8 inch glasstek



Is your scoop sealed... where is the seal at in relation
to the hood itself... also where are the carbs in the
scoop... how far from the top of the carbs to the scoop




Carbs are pretty much center of scoop and the front carb is about 3 inches from scoop, rear carb a little more clearance. There is about an inch and half clearance to windshield and carbs are not sealed to hood.



So does it run quicker sealed to the hood or not sealed?



I had a smaller cowl hood with a single carb and sealed it to hood and didn't make a bit of difference, now with the tunnel ram and two 4's i didn't mess with trying to seal the carbs on this hood.



Can you run air cleaners with that scoop? i mean is there enough room for them? i am building a 73 duster and am going to have to find a 7-8 inch tall hood scoop for my car.I am also running a tunnel-ram on RB 440. could you post a pic of the scoop from the drivers seat? if not no big deal/ thanks mopar65

3520 pound race ready 1973 Street/Strip Dodge Dart - Stock stroke 440/727 10.49 @ 125.0 on 93 pump gas & ET Street Radials. More to come... ( SGT Miller) Proudly served 12 years in the US ARMY RESERVES support our troops
Re: Cowl Hood [Re: 440W8 Duster] #1565819
01/21/14 08:50 PM 01/21/14 08:50 PM
Joined: Feb 2003
Posts: 991
Addison,IL
OUTLAWSSAA Offline
super stock
OUTLAWSSAA  Offline
super stock

Joined: Feb 2003
Posts: 991
Addison,IL
Quote:

On another note. SS/AH do they seal their carbs or not to the scoop?



If you go down to the US Nationals and look at all the hemi cars, not one of them that I saw had there hoods sealed to the carbs.
Re: Cowl Hood [Re: OUTLAWSSAA] #1565820
01/21/14 09:30 PM 01/21/14 09:30 PM
Joined: Sep 2004
Posts: 1,499
San Antonio,TX
4
440W8 Duster Offline OP
pro stock
440W8 Duster  Offline OP
pro stock
4

Joined: Sep 2004
Posts: 1,499
San Antonio,TX
Quote:

Quote:

On another note. SS/AH do they seal their carbs or not to the scoop?



If you go down to the US Nationals and look at all the hemi cars, not one of them that I saw had there hoods sealed to the carbs.



Ok so that means you or the SS/AH make better power without a sealed hood or they just work better that way.

70 Duster W8 motor.
1.29 60ft 5.79 1/8 at 120 mph
glide with 1.80 gear
@3170 lbs.
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