Posted By: 440W8 Duster
Cowl Hood - 01/20/14 02:48 AM
post pictures of your cowl hood A-Bodies. which one would be faster and more effective a Cowl hood or Aero hood scoop?
Any track back to back testing.
Any track back to back testing.
Cowl Hood
Posted By: headhunter
Re: Cowl Hood - 01/20/14 03:11 AM
what about both 
Posted By: J_BODY
Re: Cowl Hood - 01/20/14 04:59 AM
Posted By: rickraw
Re: Cowl Hood - 01/20/14 05:07 AM
Posted By: mshred
Re: Cowl Hood - 01/20/14 05:14 AM
Posted By: Biginchmopar
Re: Cowl Hood - 01/20/14 05:32 AM
I love this car!
Posted By: Dragula
Re: Cowl Hood - 01/20/14 06:29 AM
Mine...
Posted By: Triple Threat
Re: Cowl Hood - 01/20/14 06:40 AM
I've done a bit of research on this lately. Big aero scoops seem to be worth a little bit of ET over cowl's or other small forward facing scoops like you have now. The con is they're a pain to see around, if you've ever driven a car with one, you know what I mean.
Posted By: rebel
Re: Cowl Hood - 01/20/14 06:51 AM
et & mph gain over the 6 pak it replaced.
Posted By: Biginchmopar
Re: Cowl Hood - 01/20/14 09:03 AM
My junk!
Posted By: Ohio Joe
Re: Cowl Hood - 01/20/14 09:18 AM
Work in progress
Posted By: John Burdine
Re: Cowl Hood - 01/20/14 10:01 AM
Glasstek 6"
Posted By: tubtar
Re: Cowl Hood - 01/20/14 04:46 PM
Too new , Joe.
Posted By: Jeepmon
Re: Cowl Hood - 01/20/14 06:30 PM
Jacked!!
Posted By: 6PKRTSE
Re: Cowl Hood - 01/20/14 07:25 PM
Nice Nova's guys. LOL. Just kidding alot of nice A bodies though.
Posted By: FASTFISH420
Re: Cowl Hood - 01/20/14 08:51 PM
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.
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.
Posted By: 440W8 Duster
Re: Cowl Hood - 01/20/14 09:59 PM
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
Posted By: MR_P_BODY
Re: Cowl Hood - 01/20/14 10:11 PM
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
Posted By: bad1970dust
Re: Cowl Hood - 01/20/14 10:24 PM
my 71 with cowl
Posted By: Gary Robbins
Re: Cowl Hood - 01/20/14 10:26 PM
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.
Mine loves the cowl hood(6" glasstech)...no air pan or even close to the windshield...145mph in the 1/8 and should be in the 150mph range with the new combo !!
Posted By: MR_P_BODY
Re: Cowl Hood - 01/20/14 10:28 PM
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
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
Posted By: 440W8 Duster
Re: Cowl Hood - 01/20/14 11:09 PM
Quote:
my 71 with cowl
Is that in Humboldt Ia?
Posted By: KOS
Re: Cowl Hood - 01/21/14 01:25 AM
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.
Posted By: 408strokerdart
Re: Cowl Hood - 01/21/14 01:35 AM
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.
Personally, I am convinced there is no substitution for clean/cool air.
Posted By: Thumperdart
Re: Cowl Hood - 01/21/14 02:03 AM
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..............
Posted By: fishy340
Re: Cowl Hood - 01/21/14 02:37 AM
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
Posted By: MR_P_BODY
Re: Cowl Hood - 01/21/14 03:07 AM
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
Posted By: mistress
Re: Cowl Hood - 01/21/14 05:55 AM
My 8 inch glasstek
Posted By: MR_P_BODY
Re: Cowl Hood - 01/21/14 06:10 AM
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
Posted By: mistress
Re: Cowl Hood - 01/21/14 03:13 PM
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.
Posted By: 440W8 Duster
Re: Cowl Hood - 01/21/14 04:10 PM
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?
Posted By: 440W8 Duster
Re: Cowl Hood - 01/21/14 04:12 PM
On another note. SS/AH do they seal their carbs or not to the scoop?
Posted By: mistress
Re: Cowl Hood - 01/21/14 04:24 PM
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.
Posted By: 440W8 Duster
Re: Cowl Hood - 01/21/14 04:28 PM
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?
Posted By: an8sec70cuda
Re: Cowl Hood - 01/21/14 05:14 PM
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.
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.
Posted By: mistress
Re: Cowl Hood - 01/21/14 05:50 PM
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
Posted By: bad1970dust
Re: Cowl Hood - 01/21/14 06:00 PM
Quote:Quote:
my 71 with cowl
Is that in Humboldt Ia?
Yes our local skating rink lol
Posted By: mopar65
Re: Cowl Hood - 01/21/14 11:13 PM
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
Posted By: OUTLAWSSAA
Re: Cowl Hood - 01/22/14 12:50 AM
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.
Posted By: 440W8 Duster
Re: Cowl Hood - 01/22/14 01:30 AM
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.
Posted By: headhunter
Re: Cowl Hood - 01/22/14 01:41 AM
if im not mistaking the carbs sit to high in the scoop to seal them
Posted By: 440W8 Duster
Re: Cowl Hood - 01/22/14 01:44 AM
Quote:
if im not mistaking the carbs sit to high in the scoop to seal them
OK!
Posted By: headhunter
Re: Cowl Hood - 01/22/14 02:04 AM
Quote:that's a good looking demon
Glasstek 6"
Posted By: headhunter
Re: Cowl Hood - 01/22/14 02:10 AM
Quote:I don't know ive thought about getting another hood but it kinda grows on you lolQuote:
Now that this car is a streeter,want to sell the hood or trade lmk.
Thats the set up i want
Posted By: fishy340
Re: Cowl Hood - 01/22/14 03:30 AM
Well Mr Hunter...i got a mint oem 68 steel and a 4" glasstek.Im gonna end up doing one like you have there so keep me in mind bud.
Posted By: Jeepmon
Re: Cowl Hood - 01/22/14 03:43 AM
Quote:
I don't know ive thought about getting another hood but it kinda grows on you lol
So does the paint job
Posted By: an8sec70cuda
Re: Cowl Hood - 01/22/14 03:07 PM
Quote:
if im not mistaking the carbs sit to high in the scoop to seal them
Using drop bases on the carbs will fix that. Seen it done many times.
If it was worth any power on those cars, I'm sure they would be doing it.
Posted By: Thumperdart
Re: Cowl Hood - 01/22/14 06:05 PM
Quote:Quote:
if im not mistaking the carbs sit to high in the scoop to seal them
Using drop bases on the carbs will fix that. Seen it done many times.
If it was worth any power on those cars, I'm sure they would be doing it.
If you`re talking about the Hemi guys, I read somewhere that they can`t use air pans.................
Posted By: Monte_Smith
Re: Cowl Hood - 01/22/14 08:33 PM
Quote:Sure they can, problem is they don't help. The scoop has to be kept within factory dimensions and as discussed in other threads is not high enough to do any good. Sealing the scoop would probably cost it air vs letting it get some underhood air unsealed.Quote:Quote:
if im not mistaking the carbs sit to high in the scoop to seal them
Using drop bases on the carbs will fix that. Seen it done many times.
If it was worth any power on those cars, I'm sure they would be doing it.
If you`re talking about the Hemi guys, I read somewhere that they can`t use air pans.................
Monte
Posted By: Dartari
Re: Cowl Hood - 01/25/14 06:39 PM
Quote:Hi Monte in your opinion is there an advantage in the glasstek 5" six pack scoop over the glasstek 6" cowl hood thanks for any insight you may haveQuote:Sure they can, problem is they don't help. The scoop has to be kept within factory dimensions and as discussed in other threads is not high enough to do any good. Sealing the scoop would probably cost it air vs letting it get some underhood air unsealed.Quote:Quote:
if im not mistaking the carbs sit to high in the scoop to seal them
Using drop bases on the carbs will fix that. Seen it done many times.
If it was worth any power on those cars, I'm sure they would be doing it.
If you`re talking about the Hemi guys, I read somewhere that they can`t use air pans.................
Monte
Posted By: MR_P_BODY
Re: Cowl Hood - 01/25/14 07:47 PM
Quote:Quote:Sure they can, problem is they don't help. The scoop has to be kept within factory dimensions and as discussed in other threads is not high enough to do any good. Sealing the scoop would probably cost it air vs letting it get some underhood air unsealed.Quote:Quote:
if im not mistaking the carbs sit to high in the scoop to seal them
Using drop bases on the carbs will fix that. Seen it done many times.
If it was worth any power on those cars, I'm sure they would be doing it.
If you`re talking about the Hemi guys, I read somewhere that they can`t use air pans.................
Monte
... they just arent tall enough to get upinto the real air flow... they MAY be getting a good
percentage of their air flow from inside the hood
area.. I picked up ET and 3 MPH on my scoop when I
sealed it
Posted By: Monte_Smith
Re: Cowl Hood - 01/25/14 08:53 PM
A forward opening scoop is USELESS unless it is high enough in the air stream to over come the "boundary layer bleed off" on the surface of the hood. Grab an old Direct Connection manual and do some reading. All this is covered.
A lot of guys don't like the look of cowls on a Mopar, especially the "purists", but bottom line, they WORK when set up right.
The "factory" forward facing scoops were for one of two things...LOOKS or CLEARANCE..........you will notice performance is NOT included in that list.
Again, these are NOT ONLY my opinions, but those of the Mopar engineers as well.
Monte
A lot of guys don't like the look of cowls on a Mopar, especially the "purists", but bottom line, they WORK when set up right.
The "factory" forward facing scoops were for one of two things...LOOKS or CLEARANCE..........you will notice performance is NOT included in that list.
Again, these are NOT ONLY my opinions, but those of the Mopar engineers as well.
Monte
Posted By: Dartari
Re: Cowl Hood - 01/25/14 10:17 PM
Thanks Mr P Body ,Monte I was going to get the 5 inch six pack scoop but my wife likes the 6 inch Glasstek hood for our duster so it's the 6 inch cowl she will be pleased thanks again
Posted By: headhunter
Re: Cowl Hood - 01/26/14 04:31 AM
is my carb up in the scoop high enough to be any good?
Posted By: headhunter
Re: Cowl Hood - 01/26/14 04:34 AM
or do you think it will just try and pull the fuel out of it like with no hood on it?
Posted By: 440W8 Duster
Re: Cowl Hood - 01/26/14 04:01 PM
Quote:
et & mph gain over the 6 pak it replaced.
Rebel how much gap between your windshield and the cowl hood do you have?
Posted By: Monte_Smith
Re: Cowl Hood - 01/26/14 07:25 PM
Quote:I would venture a guess that this car will run the SAME, with or without a plug in the scoopis my carb up in the scoop high enough to be any good?
Monte