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Re: Cowl hoods
[Re: poisondart2]
#902657
01/12/11 12:54 PM
01/12/11 12:54 PM
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Joined: Jan 2003
Posts: 13,365
Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,365
Marion, South Carolina [><]
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When my car was running mid 11s on motor and mid 10s on nitrous, I had a tall 6 pack scoop on it that was sealed to the carb. I had that combo well sorted out and played around a lot w/ the carb air pan and jetting. Sealing the carb to the scoop dropped a tenth and gained a little over 1 mph vs. not sealed. I switched to the 5" tall cowl that's currently on my car and did NOT have it sealed to the carb. It ran the same as the six pack hood sealed to the carb. Now if you have a big pro stock style scoop, or something very tall, then I'm sure it'll work better than a cowl. I have done the aero test where you tape strips of thread/yarn around the back of the scoop while going down the track. There is definitely air getting pulled into the cowl scoop. A lot of people will try to tell you they just vent air from under the hood...not true. The rear of the cowl scoop needs to be close to the windshield. I can just barely get my hand b/t the back of my hood and the windshield. If there is a big gap there, it will not pull in air. 
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
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Re: Cowl hoods
[Re: poisondart2]
#902659
01/12/11 01:23 PM
01/12/11 01:23 PM
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Joined: Jan 2003
Posts: 13,365
Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,365
Marion, South Carolina [><]
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The pic isn't good for showing that. The angle and the lighting I guess. It's around 2" away from the windshield...not exactly sure, but I can measure it tonight when I get home from work.
It is a bolt on from Glasstek. Here's another pic.
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
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Re: Cowl hoods
[Re: poisondart2]
#902661
01/12/11 01:45 PM
01/12/11 01:45 PM
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Joined: Nov 2003
Posts: 10,384
Upstate NY
Bigcube
I Live Here
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I Live Here
Joined: Nov 2003
Posts: 10,384
Upstate NY
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A bolt on hood for a Dart you can not have the end close to the window or it will not hinge up. The end of the cowl will hit the window. I've had both, 5" bolt on and a 6" lift off. I'll see if I can dig up pics of both.
Jim
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Re: Cowl hoods
[Re: Bigcube]
#902662
01/12/11 01:51 PM
01/12/11 01:51 PM
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Joined: Mar 2010
Posts: 341
Highland beach Fl
poisondart2
OP
enthusiast
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OP
enthusiast
Joined: Mar 2010
Posts: 341
Highland beach Fl
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Quote:
A bolt on hood for a Dart you can not have the end close to the window or it will not hinge up. The end of the cowl will hit the window. I've had both, 5" bolt on and a 6" lift off. I'll see if I can dig up pics of both.
Thanks Iam not going to use the hinges for a bolt on I was just thinking the bolt on is reinforced and would not buckle at the front of the hood only using two pins on the corner at the front of it.
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Re: Cowl hoods
[Re: an8sec70cuda]
#902663
01/12/11 01:58 PM
01/12/11 01:58 PM
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Joined: Jan 2003
Posts: 2,930
Odessa, Tx.
cudarex
master
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master
Joined: Jan 2003
Posts: 2,930
Odessa, Tx.
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Quote:
The pic isn't good for showing that. The angle and the lighting I guess. It's around 2" away from the windshield...not exactly sure, but I can measure it tonight when I get home from work.
It is a bolt on from Glasstek. Here's another pic.
No interference with your windshield when you open?
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Re: Cowl hoods
[Re: poisondart2]
#902664
01/12/11 02:00 PM
01/12/11 02:00 PM
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Joined: Nov 2003
Posts: 10,384
Upstate NY
Bigcube
I Live Here
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I Live Here
Joined: Nov 2003
Posts: 10,384
Upstate NY
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Quote:
Quote:
A bolt on hood for a Dart you can not have the end close to the window or it will not hinge up. The end of the cowl will hit the window. I've had both, 5" bolt on and a 6" lift off. I'll see if I can dig up pics of both.
Thanks Iam not going to use the hinges for a bolt on I was just thinking the bolt on is reinforced and would not buckle at the front of the hood only using two pins on the corner at the front of it.
The bolt on hood is heavy, almost the same weight as a steel one. I also set the side up with rails to support the hood, some zues in the front and across the back.
Back ones
Side rails and you can also see the front in this pic.
I don't have a real good pic showing how close it is to the window but you can see how far back it extens over the cowl. It completely covers where the vent grate was.
The pic in my sig is the old 5" bolt on. 
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Re: Cowl hoods
[Re: rowin4]
#902668
01/12/11 02:37 PM
01/12/11 02:37 PM
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Joined: Mar 2010
Posts: 341
Highland beach Fl
poisondart2
OP
enthusiast
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OP
enthusiast
Joined: Mar 2010
Posts: 341
Highland beach Fl
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Quote:
Just thought I'd ask, seen your user name say's Poison dart but maybe you might be working on some thing new. Dart lift off won't be bad but cowl hoods are heavy, there's just no easy way to grab them and lift it off. The 70 ' cuda hoods are almost impossible. 
Yeah I would guess they are heavy but need room and using a taller front scoop looks weird I think as it has to be wide enough to make up for the offset to the passenger side of the car. Also have a 70 Cuda sitting for ever now, someday it will get its turn 
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Re: Cowl hoods
[Re: poisondart2]
#902669
01/12/11 04:10 PM
01/12/11 04:10 PM
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Joined: Jan 2003
Posts: 13,365
Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,365
Marion, South Carolina [><]
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The bolt-ons from Glasstek are heavy, but very rigid.
It does not hit the windshield at all.
On some body styles, it's impossible to get the scoop real close to the windshield and have the hood be a bolt-on using factory hinges.
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
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Re: Cowl hoods
[Re: an8sec70cuda]
#902670
01/12/11 04:25 PM
01/12/11 04:25 PM
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Joined: Jun 2007
Posts: 2,646
Plymouth Meeting, PA
bigtimeauto
Trophy Winner
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Trophy Winner
Joined: Jun 2007
Posts: 2,646
Plymouth Meeting, PA
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Mine is a AAR pin on. Nice hood and they have a mold so no grafting of scoops on hoods. I lift mine off by myself.
If you want more pics just ask.
BB, TT5,Procharged 3300lb Street Car 4.79/154
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Re: Cowl hoods
[Re: bigtimeauto]
#902671
01/12/11 04:55 PM
01/12/11 04:55 PM
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Joined: Mar 2010
Posts: 341
Highland beach Fl
poisondart2
OP
enthusiast
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OP
enthusiast
Joined: Mar 2010
Posts: 341
Highland beach Fl
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Quote:
Mine is a AAR pin on. Nice hood and they have a mold so no grafting of scoops on hoods. I lift mine off by myself.
If you want more pics just ask.
Thanks and i love your car but I need 6 inch and I spoke with AAR and they wont make a bigger one or extend the one they have although it would of been nice if they would --they are just up the road a little from me.
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Re: Cowl hoods
[Re: cudarex]
#902672
01/12/11 09:20 PM
01/12/11 09:20 PM
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Joined: Jan 2003
Posts: 13,365
Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,365
Marion, South Carolina [><]
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Quote:
Quote:
The pic isn't good for showing that. The angle and the lighting I guess. It's around 2" away from the windshield...not exactly sure, but I can measure it tonight when I get home from work.
It is a bolt on from Glasstek. Here's another pic.
No interference with your windshield when you open?
My hood is exactly 2" away from the windshield when closed.
As you open it, the top of the scoop gets as close as 3/4" to the windshield, but then the rear of the hood rolls down and forward further away from the windshield. I have the factory original hinges, just using the lightweight springs supplied by Glasstek.
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
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Re: Cowl hoods
[Re: bigtimeauto]
#902674
01/13/11 02:15 AM
01/13/11 02:15 AM
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Joined: Oct 2004
Posts: 489
mid Ga.
W5Dart378
mopar
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mopar
Joined: Oct 2004
Posts: 489
mid Ga.
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If it is for a 69 Dart, I can get you a super nice 6" cowl back to the windshield carbonfiber hood.
69 340 swinger streetcar 8.13 1/8th w/1.90 60ft w/ 3.55s
69 422W9 Dart stock suspension,5.27 on 275/60s,single bar plate
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Re: Cowl hoods
[Re: W5Dart378]
#902676
01/13/11 10:35 AM
01/13/11 10:35 AM
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Joined: Mar 2010
Posts: 341
Highland beach Fl
poisondart2
OP
enthusiast
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OP
enthusiast
Joined: Mar 2010
Posts: 341
Highland beach Fl
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Quote:
If it is for a 69 Dart, I can get you a super nice 6" cowl back to the windshield carbonfiber hood.
Yes Iam interested PM sent
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Re: Cowl hoods
[Re: Crizila]
#902681
01/13/11 10:33 PM
01/13/11 10:33 PM
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Joined: Mar 2010
Posts: 341
Highland beach Fl
poisondart2
OP
enthusiast
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OP
enthusiast
Joined: Mar 2010
Posts: 341
Highland beach Fl
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Glad I made this post as W5DART378 sent photo's of his carbon fiber 6 inch cowl hood absolutley perfect no center line runs all the way to windshield and the underside looks as good as the top 
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Re: Cowl hoods
[Re: fishy340]
#902683
01/14/11 01:04 PM
01/14/11 01:04 PM
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Joined: Nov 2003
Posts: 10,384
Upstate NY
Bigcube
I Live Here
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I Live Here
Joined: Nov 2003
Posts: 10,384
Upstate NY
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Quote:
BIGCUBE did u fab the rails,or buy them? thanks
My body guy made them.
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Re: Cowl hoods
[Re: poisondart2]
#902685
01/14/11 02:54 PM
01/14/11 02:54 PM
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Joined: May 2006
Posts: 1,073
oregon
greendart408
super stock
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super stock
Joined: May 2006
Posts: 1,073
oregon
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Quote:
Glad I made this post as W5DART378 sent photo's of his carbon fiber
6 inch cowl hood absolutley perfect no center line
runs all the way to windshield and the underside looks as good as the top
Pics and price please... I am wanting a new hood also as my new Glasstek hemi hood isn't tall enough to clear my injection.
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Re: Cowl hoods
[Re: greendart408]
#902686
01/14/11 03:45 PM
01/14/11 03:45 PM
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Joined: Mar 2010
Posts: 341
Highland beach Fl
poisondart2
OP
enthusiast
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OP
enthusiast
Joined: Mar 2010
Posts: 341
Highland beach Fl
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Quote:
Quote:
Glad I made this post as W5DART378 sent photo's of his carbon fiber
6 inch cowl hood absolutley perfect no center line
runs all the way to windshield and the underside looks as good as the top
Pics and price please... I am wanting a new hood also as my new Glasstek hemi hood isn't tall enough to clear my injection.
PM- W5DART378 Iam still waiting on a shipping price but the hood is about ONE GRANDE
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Re: Cowl hoods
[Re: Bigcube]
#902687
01/14/11 07:36 PM
01/14/11 07:36 PM
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Joined: Jun 2010
Posts: 3,112
LONG ISLAND
fishy340
master
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master
Joined: Jun 2010
Posts: 3,112
LONG ISLAND
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Quote:
Quote:
BIGCUBE did u fab the rails,or buy them? thanks
My body guy made them.
i'm gonna go that route also..thanks pal
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Re: Cowl hoods
[Re: BEEQUIK]
#902690
01/14/11 09:33 PM
01/14/11 09:33 PM
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Joined: Aug 2006
Posts: 1,340
Pennsylvania
proshiftcharger
pro stock
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pro stock
Joined: Aug 2006
Posts: 1,340
Pennsylvania
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Quote:
and the AAR hood on the 68...
Beequik,
How effective is your cowl? The reason Im asking is judging from the pic it appears to be 5-6 inches away from the windshield. Can it still flow air into the carb that far away from the windshield? 
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Re: Cowl hoods
[Re: proshiftcharger]
#902691
01/14/11 09:50 PM
01/14/11 09:50 PM
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Joined: Feb 2004
Posts: 2,495
Richmond , Virginia
BEEQUIK
top fuel
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top fuel
Joined: Feb 2004
Posts: 2,495
Richmond , Virginia
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Quote:
Quote:
and the AAR hood on the 68...
Beequik,
How effective is your cowl? The reason Im asking is judging from the pic it appears to be 5-6 inches away from the windshield. Can it still flow air into the carb that far away from the windshield?
Probably not very effective, but I ordered a Hemi Dart hood and when I arrived at Rockingham (met them at a show to pick up)they had made me a really nice 68 Hemi Cuda hood!! So rather tahn risk them shipping me another and the time to make it( I was in a hurry)I took that hood and the difference back on my end. So that is that story. Looked good but not what I wanted/ ordered.
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Re: Cowl hoods
[Re: mr. 63plymouth]
#902697
01/19/11 06:18 PM
01/19/11 06:18 PM
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Joined: May 2007
Posts: 636
Central,Ohio
FASTFISH420
mopar
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mopar
Joined: May 2007
Posts: 636
Central,Ohio
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Mine does not work at all..it a very nice hood 5inch glasstek...I have tried everything.it will ruin a set of plugs..lol
1969 Barracuda 8 second all/motor small block
2014 Shelby GT500 Mustang
Uratchko Racing Engines
www.URE-RACING.com
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Re: Cowl hoods
[Re: one bad fish]
#902702
01/20/11 02:21 AM
01/20/11 02:21 AM
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Joined: Jun 2005
Posts: 6,257
gulfport, ms, west mi
rowin4
master
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master
Joined: Jun 2005
Posts: 6,257
gulfport, ms, west mi
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I have always thought my car would run faster with a cowl hood, that big scoop shovel has to slow a car down, it's like driving with your door wide open. If you have a opening as big as a cowl, air will find it's way to the carb. 
it's ok to butt heads, just don't do it with a butthead
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Re: Cowl hoods
[Re: rowin4]
#902703
01/20/11 03:07 AM
01/20/11 03:07 AM
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Joined: May 2007
Posts: 636
Central,Ohio
FASTFISH420
mopar
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mopar
Joined: May 2007
Posts: 636
Central,Ohio
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I have tried acouple different hood scoops also..a hemi and six pack and they dont work either..I love the cowl..if I redo the hood it will be a 6 inch that goes to the windshield..I need to put a good aero scoop on it,but hate to deface the car with it..I run such a big cfm carb..it needs all the airflow it can get.. Been running the carb out the scoop hole and running a big aircleaner on it..just for testing mode purposes..
1969 Barracuda 8 second all/motor small block
2014 Shelby GT500 Mustang
Uratchko Racing Engines
www.URE-RACING.com
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Re: Cowl hoods
[Re: FASTFISH420]
#902704
01/20/11 06:08 AM
01/20/11 06:08 AM
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Joined: Mar 2008
Posts: 307
OH
TheBlackCar
enthusiast
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enthusiast
Joined: Mar 2008
Posts: 307
OH
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Quote:
I have tried acouple different hood scoops also..a hemi and six pack and they dont work either..I love the cowl..if I redo the hood it will be a 6 inch that goes to the windshield..I need to put a good aero scoop on it,but hate to deface the car with it..I run such a big cfm carb..it needs all the airflow it can get..
Been running the carb out the scoop hole and running a big aircleaner on it..just for testing mode purposes..
Ever try anything like the PS trucks had? Cowl hoods with a front facing airpan. Aerodynamic benefit of the cowl and just redirect air that would hit the front of vehicle anyway.
I like the looks of the cowl, however I'm just not subscribing to the "air off the windshield" lore.
My 6" cowl goes back to an inch or so of the windhield and has a 2pc forward facing pan setup. Still sorting out electrical issues and have not had it over 140 yet, which is where I expect it to start making a difference.
Good Luck
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Re: Cowl hoods
[Re: TheBlackCar]
#902705
01/20/11 08:42 AM
01/20/11 08:42 AM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Quote:
I have tried acouple different hood scoops also..a hemi and six pack and they dont work either..I love the cowl..if I redo the hood it will be a 6 inch that goes to the windshield..I need to put a good aero scoop on it,but hate to deface the car with it..I run such a big cfm carb..it needs all the airflow it can get..
Been running the carb out the scoop hole and running a big aircleaner on it..just for testing mode purposes..
Ever try anything like the PS trucks had? Cowl hoods with a front facing airpan. Aerodynamic benefit of the cowl and just redirect air that would hit the front of vehicle anyway.
I like the looks of the cowl, however I'm just not subscribing to the "air off the windshield" lore.
My 6" cowl goes back to an inch or so of the windhield and has a 2pc forward facing pan setup. Still sorting out electrical issues and have not had it over 140 yet, which is where I expect it to start making a difference.
Good Luck
I've wanted to test my scoop VS a cowl in cars that
run the same speed... just putting a inches of water
gauge with a pick up tube in the cowl and scoop...
at least I know that if the front facing scoop is
high enough to be in the air flow it applies pressure
at speed where the six pack type arent high enough
and may actually hurt performance
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Re: Cowl hoods
[Re: rowin4]
#902706
01/20/11 09:26 AM
01/20/11 09:26 AM
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Joined: Mar 2010
Posts: 341
Highland beach Fl
poisondart2
OP
enthusiast
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OP
enthusiast
Joined: Mar 2010
Posts: 341
Highland beach Fl
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Quote:
I have always thought my car would run faster with a cowl hood, that big scoop shovel has to slow a car down, it's like driving with your door wide open. If you have a opening as big as a cowl, air will find it's way to the carb.
It has to catch alot of air like putting a chute on the front of the car and pushing against it.Looks like most on here that have a cowl are 140 or better with no complaints of a loss.
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Re: Cowl hoods
[Re: poisondart2]
#902707
01/20/11 09:30 AM
01/20/11 09:30 AM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Quote:
I have always thought my car would run faster with a cowl hood, that big scoop shovel has to slow a car down, it's like driving with your door wide open. If you have a opening as big as a cowl, air will find it's way to the carb.
It has to catch alot of air like putting a chute on the front of the car and pushing against it.Looks like most on here that have a cowl are 140 or better with no complaints of a loss.
It may be a like a chute BUT if its in the air flow
its pressurizing the carb(cheap supercharger)
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Re: Cowl hoods
[Re: MR_P_BODY]
#902708
01/20/11 09:37 AM
01/20/11 09:37 AM
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Joined: Mar 2010
Posts: 341
Highland beach Fl
poisondart2
OP
enthusiast
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OP
enthusiast
Joined: Mar 2010
Posts: 341
Highland beach Fl
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Quote:
Quote:
Quote:
I have always thought my car would run faster with a cowl hood, that big scoop shovel has to slow a car down, it's like driving with your door wide open. If you have a opening as big as a cowl, air will find it's way to the carb.
It has to catch alot of air like putting a chute on the front of the car and pushing against it.Looks like most on here that have a cowl are 140 or better with no complaints of a loss.
It may be a like a chute BUT if its in the air flow
its pressurizing the carb(cheap supercharger)
Yeah but at what point does the drag on the car outweigh the forced air ?  and would it not be better to be more aerodynamic and force the air another way like with a tube to the carb like the Fords use?
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Re: Cowl hoods
[Re: FASTFISH420]
#902713
01/21/11 08:14 PM
01/21/11 08:14 PM
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Joined: Dec 2005
Posts: 58
Suwanee, Georgia
srracing8
member
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member
Joined: Dec 2005
Posts: 58
Suwanee, Georgia
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I've always wondered how some of you see around the tall scoops sitting at the tree? I have a 6" cowl hood and the way I sit in my car any lower I would have to put a wedge under the seat to see the tree. I've watched some of the ProStock and ProMod racers when in the left lane stretching their necks to see the lights. Just some thoughts. PoisonDart post some photos with the wheels up. You are loosing et with all the air under the car. LOL
1/8@5.83/120mph
1/4@9.28/143mph
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Re: Cowl hoods
[Re: srracing8]
#902716
01/21/11 08:49 PM
01/21/11 08:49 PM
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Joined: Mar 2010
Posts: 341
Highland beach Fl
poisondart2
OP
enthusiast
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OP
enthusiast
Joined: Mar 2010
Posts: 341
Highland beach Fl
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Quote:
I've always wondered how some of you see around the tall scoops sitting at the tree? I have a 6" cowl hood and the way I sit in my car any lower I would have to put a wedge under the seat to see the tree.
I've watched some of the ProStock and ProMod racers when in the left lane stretching their necks to see the lights.
Just some thoughts.
PoisonDart post some photos with the wheels up. You are loosing et with all the air under the car. LOL
LOL If it doesnt rain tommorow I will try to get a photo for you on it's roof is a 1.587 60' time bad ? and still run a 9 
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