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Holes in cowl hood #466048
09/11/09 10:03 PM
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Shawn Jennings
Re: Holes in cowl hood [Re: 572_dup2] #466049
09/11/09 10:05 PM
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Shawn Jennings
Re: Holes in cowl hood [Re: 572_dup2] #466050
09/11/09 10:07 PM
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Shawn Jennings
Re: Holes in cowl hood [Re: 572_dup2] #466051
09/11/09 10:08 PM
09/11/09 10:08 PM
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Aurora, Oh.
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I'm not sure that is helping to get air to those carbs and any that gets in there will be turbulent at best and even passing over the carbs out through the back



Russ

Re: Holes in cowl hood [Re: 572_dup2] #466052
09/11/09 10:09 PM
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looks like 63 split window coupe vette,
what the heck are you doing?

Re: Holes in cowl hood [Re: 572_dup2] #466053
09/11/09 10:10 PM
09/11/09 10:10 PM
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Central,Ohio
FASTFISH420 Offline
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Carbs are way to close to the top of the hood..you have to have atleast 1 inch over the vent tubes..2 inch is more like it..put you a nice looking aero scoop on it...I bet it would pick up 2 tenths..

Last edited by FASTFISH420; 09/11/09 10:12 PM.

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Re: Holes in cowl hood [Re: 572_dup2] #466054
09/11/09 10:13 PM
09/11/09 10:13 PM
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Charleston
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take a piece of string and tape one end to the front of the hood, other end to the roof. opening needs to be above that line. thats what i read in a BOOK (i'm really just like quicktree )


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Re: Holes in cowl hood [Re: 572_dup2] #466055
09/11/09 10:14 PM
09/11/09 10:14 PM
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Deerfield, Ohio
70dusterjohn Offline
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Did the same thing on my brothers car.. It would suck the fuel out of the top of the carb. It was like the care hit a brick wall, and wouldn't go any faster. He went from a single 4 to TR with 2. The car went 8.98 with a single and 9.20 with the TR. Changed the hood to a pro-stock style and went 8.42 after lots of tuning...

Re: Holes in cowl hood [Re: 70dusterjohn] #466056
09/11/09 10:16 PM
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Show me a pic of the hood an scoop it needs.


Shawn Jennings
Re: Holes in cowl hood [Re: 70dusterjohn] #466057
09/11/09 10:19 PM
09/11/09 10:19 PM
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Upstate NY
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Is it a lift off hood? A buddy picked up a bunch just taking the hood off the car. Something easy to try if they will let you make a pass without one.


Jim

Re: Holes in cowl hood [Re: 572_dup2] #466058
09/11/09 10:19 PM
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i will be running a hogan intake like yours with this hood, just a little taller. 8.47

Re: Holes in cowl hood [Re: 572_dup2] #466059
09/11/09 10:19 PM
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the old mopar pro style would look good on that car


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Re: Holes in cowl hood [Re: 572_dup2] #466060
09/11/09 10:21 PM
09/11/09 10:21 PM
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Deerfield, Ohio
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http://www.summitracing.com/parts/HRD-3182/

This is what he is running now.. I'll go dig around and see if I can't find a picture of bubs car.

Re: Holes in cowl hood [Re: FASTFISH420] #466061
09/11/09 10:22 PM
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Quote:

Carbs are way to close to the top of the hood..you have to have atleast 1 inch over the vent tubes..2 inch is more like it..put you a nice looking aero scoop on it...I bet it would pick up 2 tenths..





I told him that 3 months ago but he's hard of hearing. (stubburn). When I tried a tunnelram on my daytona the carbs were to close to the top of the scoop. It ran great for about 600 feet then fell off.


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Re: Holes in cowl hood [Re: Bigcube] #466062
09/11/09 10:22 PM
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Quote:

Is it a lift off hood? A buddy picked up a bunch just taking the hood off the car. Something easy to try if they will let you make a pass without one.




Took the hood off an it slowed down a bunch!


Shawn Jennings
Re: Holes in cowl hood [Re: 572_dup2] #466063
09/11/09 10:23 PM
09/11/09 10:23 PM
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Central,Ohio
FASTFISH420 Offline
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This car fly's...

5477134-smallaero.jpg (135 downloads)

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Re: Holes in cowl hood [Re: 572_dup2] #466064
09/11/09 10:23 PM
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Quote:

Show me a pic of the hood an scoop it needs.



Have you ever seen the clear plexiglass scoops? I think RT540 had one and I saw cars in Orland with them. They don't detract from the car or hood since they are clear. They have a good size opening too.

Re: Holes in cowl hood [Re: pittsburghracer] #466065
09/11/09 10:24 PM
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Quote:

Quote:

Carbs are way to close to the top of the hood..you have to have atleast 1 inch over the vent tubes..2 inch is more like it..put you a nice looking aero scoop on it...I bet it would pick up 2 tenths..





I told him that 3 months ago but he's hard of hearing. (stubburn). When I tried a tunnelram on my daytona the carbs were to close to the top of
the scoop. It ran great for about 600 feet then fell off.




Ya it goes bout 200ft then its DONE!


Shawn Jennings
Re: Holes in cowl hood [Re: 572_dup2] #466066
09/11/09 10:24 PM
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Quote:

Quote:

Is it a lift off hood? A buddy picked up a bunch just taking the hood off the car. Something easy to try if they will let you make a pass without one.




Took the hood off an it slowed down a bunch!



OK, scratch that, glad you tried it already.

Re: Holes in cowl hood [Re: Bigcube] #466067
09/11/09 10:24 PM
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Quote:

Quote:

Show me a pic of the hood an scoop it needs.



Have you ever seen the clear plexiglass scoops? I think RT540 had one and I saw cars in Orland with them. They don't detract from the car or hood since they are clear. They have a good size opening too.




No?


Shawn Jennings
Re: Holes in cowl hood [Re: FASTFISH420] #466068
09/11/09 10:26 PM
09/11/09 10:26 PM
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Quote:

Carbs are way to close to the top of the hood..you have to have atleast 1 inch over the vent tubes..2 inch is more like it..put you a nice looking aero scoop on it...I bet it would pick up 2 tenths..




I agree carbs are too close.

Re: Holes in cowl hood [Re: vc360] #466069
09/11/09 10:28 PM
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Yes carbs are too close. What are the options for a hood? Nothing against the guys that have the hemi type scoops but is there something different?


Shawn Jennings
Re: Holes in cowl hood [Re: 572_dup2] #466070
09/11/09 10:31 PM
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Quote:

Quote:

Quote:

Show me a pic of the hood an scoop it needs.



Have you ever seen the clear plexiglass scoops? I think RT540 had one and I saw cars in Orland with them. They don't detract from the car or hood since they are clear. They have a good size opening too.




No?










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Re: Holes in cowl hood [Re: Ari440] #466071
09/11/09 10:32 PM
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YA thats wild!


Shawn Jennings
Re: Holes in cowl hood [Re: 572_dup2] #466072
09/11/09 10:33 PM
09/11/09 10:33 PM
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Central,Ohio
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Did you have air cleaners on it?You have to have a flat hood with the carbs popping up thru and put the air cleaners on it..you will have to much turbulance without the air cleaners..

Think about it..you have a big motor with big carbs and a big intake..needs alot of air to get it moving..

It probably goes 600 feet and quits pulling..been there done that...cowl hood take alot of R/D to get to work...


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Re: Holes in cowl hood [Re: 572_dup2] #466073
09/11/09 10:33 PM
09/11/09 10:33 PM
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I feel your pain when it comes to hoods/scoops, etc

To stay under my hood, I can't run a spacer and I use a dropped base air cleaner so it don't suck a rock in and all that means is can't get it to work right and throttle will not go to WOT and yes we tried some things and not done yet but it slows the car down

If you want it to look like a certain era and use certain parts, it limits you .

I highly doubt that if the old guys could of went super fast without altering wheelbase and 100 other things they did they would of , we look back and now it looks cool but, then I'm sure there were people that didn't like to do it


I do agree on the bigger, pro style scoop for getting those carbs in clean air but, that should not cause it to backfire not start ,etc



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Re: Holes in cowl hood [Re: 572_dup2] #466074
09/11/09 10:34 PM
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Wisconsin
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Cars with the hoods off generally will slow down. Thats bucking alot of wind into that firewall etc.

Re: Holes in cowl hood [Re: Garceau] #466075
09/11/09 10:38 PM
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Quote:

Cars with the hoods off generally will slow down. Thats bucking alot of wind into that firewall etc.





hhmmm, i never run a hood


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Re: Holes in cowl hood [Re: FASTFISH420] #466076
09/11/09 10:41 PM
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Quote:


Did you have air cleaners on it?You have to have a flat hood with the carbs popping up thru and put the air cleaners on it..you will have to much turbulance without the air cleaners..

Think about it..you have a big motor with big carbs and a big intake..needs alot of air to get it moving..

It probably goes 600 feet and quits pulling..been there done that...cowl hood take alot of R/D to get to work...





I no dont have any air cleaners on it.


Shawn Jennings
Re: Holes in cowl hood [Re: sixpackgut] #466077
09/11/09 10:44 PM
09/11/09 10:44 PM
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Wisconsin
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Quote:

Quote:

Cars with the hoods off generally will slow down. Thats bucking alot of wind into that firewall etc.





hhmmm, i never run a hood




Should try one, think about the wind just hitting that firewall. Your like going through the air with a 2x6 piece of plywood on the front end. I realize an open grill lets some air in there anyways, but this also creates alot of turbulence. I took my steel hood off my dart, figured being lighter would pick me up some. It fell off a bunch. Put hood back on, same day, picked right back up.

Re: Holes in cowl hood [Re: Garceau] #466078
09/11/09 11:03 PM
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as i said in your other post, i know a little about t/r's.when you get a scoop, make sure the opening is large enough. and make sure you position it correctly. the more clearance you have on top of the carbs, the better you are. lastly, seal the carbs., at least put a pan on the carbs to reduce turbulence.

Last edited by tjmarcus1; 09/11/09 11:04 PM.
Re: Holes in cowl hood [Re: 572_dup2] #466079
09/11/09 11:07 PM
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Quote:

Quote:

Quote:

Show me a pic of the hood an scoop it needs.



Have you ever seen the clear plexiglass scoops? I think RT540 had one and I saw cars in Orland with them. They don't detract from the car or hood since they are clear. They have a good size opening too.




No?




Is the back of the cowl scoop open... if so close it
off with a piece of plexiglass or lexan.... if the air
is coming in the front it can go straight through
and create a suction on the carbs.... if they are
close to the top get more clearance.... I like 2"
minimum... more is better... and the string from
the front of the hood to the roof line works(opening
needs to be above that line)
EDIT
You might want to phase the dist also... that could
be the back fire issue

Last edited by MR_P_BODY; 09/11/09 11:13 PM.
Re: Holes in cowl hood [Re: MR_P_BODY] #466080
09/12/09 07:50 AM
09/12/09 07:50 AM
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Fuel injection with twin 4-brrel throttle bodies....all problems solved!.....and use same hood.


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Re: Holes in cowl hood [Re: FASTFISH420] #466081
09/12/09 01:04 PM
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Quote:


This car fly's...




What scoop is this?


Shawn Jennings
Re: Holes in cowl hood [Re: 572_dup2] #466082
09/12/09 01:06 PM
09/12/09 01:06 PM
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Dearborn Hts, MI
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Quote:

Quote:


This car fly's...




What scoop is this?




Kinda looks like what Eddie did Shawn, aero scoop grafted to a cowl


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Re: Holes in cowl hood [Re: Sledge_57] #466083
09/12/09 01:08 PM
09/12/09 01:08 PM
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Quote:

Quote:

Quote:


This car fly's...




What scoop is this?




Kinda looks like what Eddie did Shawn, aero scoop grafted to a cowl




Yep, that's what it is. The manifold and carb was too high for the cowl so they added the scoop on top.

Re: Holes in cowl hood [Re: Sledge_57] #466084
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I kinda like that!


Shawn Jennings
Re: Holes in cowl hood [Re: 572_dup2] #466085
09/12/09 01:14 PM
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maybe this?

5478111-cowl.jpg (139 downloads)

Shawn Jennings
Re: Holes in cowl hood [Re: Bigcube] #466086
09/12/09 02:17 PM
09/12/09 02:17 PM
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Quote:

Quote:

Show me a pic of the hood an scoop it needs.



Have you ever seen the clear plexiglass scoops? I think RT540 had one and I saw cars in Orland with them. They don't detract from the car or hood since they are clear. They have a good size opening too.



5478206-LEXANSCOOP.jpg (151 downloads)
Re: Holes in cowl hood [Re: sixpackgut] #466087
09/12/09 03:49 PM
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Quote:

Quote:

Cars with the hoods off generally will slow down. Thats bucking alot of wind into that firewall etc.





hhmmm, i never run a hood




I feel your pain, my scoop looks like I'm trying to catch something other than air. My Older hood scoop didn't have enough clearance, you could actually see the scoop getting sucked in, like the carb wanted to eat it.

5478319-atco12.jpg (53 downloads)
Re: Holes in cowl hood [Re: B1KILLER] #466088
09/12/09 05:04 PM
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On tunnel ram and dominator equipped cars I would go with a aero style scoop. I had one on my S/G car and it worked well..There is a reason all the pro stock are running them, they are worth a bunch over the older style snorkle scoops.

5478423-PRP1.jpg (45 downloads)
Re: Holes in cowl hood [Re: 572_dup2] #466089
09/12/09 05:18 PM
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Quote:

maybe this?


just make sure it is high enough

Re: Holes in cowl hood #466090
09/12/09 05:33 PM
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I'd be tempted to try ducting air from the inboard headlamp openings into hats (or an oval box) for the carbs, and use a cowl hood without the front holes.
30 years ago, we proved the deal with air sucking the mixture out the tops of the carbs on a tunnel-ram '57 SB Vette; fabricating a simple cover that blocked air from the front & back but open on the sides, using a simple flat sheet of aluminum, fixed that, but it sure was ugly.
If you can borrow an aero scoop, mock it up to determine if you can see the 'tree while staging.
Venting the hood at the rear will get rid of the air in the engine compartment hitting the firewall.

Re: Holes in cowl hood [Re: B1KILLER] #466091
09/12/09 10:28 PM
09/12/09 10:28 PM
Joined: Nov 2004
Posts: 232
NYC
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Dartari Offline
enthusiast
Dartari  Offline
enthusiast
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Joined: Nov 2004
Posts: 232
NYC
hemi hood is the best.

Re: Holes in cowl hood [Re: Dartari] #466092
09/12/09 10:43 PM
09/12/09 10:43 PM

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Anonymous
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EVEN the taller max wedge scoop would be period correct for your car and be the best functioning.

Re: Holes in cowl hood [Re: Bigcube] #466093
09/12/09 11:17 PM
09/12/09 11:17 PM
Joined: Oct 2004
Posts: 489
mid Ga.
W5Dart378 Offline
mopar
W5Dart378  Offline
mopar

Joined: Oct 2004
Posts: 489
mid Ga.
Quote:

Quote:

Show me a pic of the hood an scoop it needs.



Have you ever seen the clear plexiglass scoops? I think RT540 had one and I saw cars in Orland with them. They don't detract from the car or hood since they are clear. They have a good size opening too. [/quote

Sounds like ORSCA Limited Street nitrous cars..


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
Re: Holes in cowl hood #466094
09/12/09 11:26 PM
09/12/09 11:26 PM
Joined: Aug 2003
Posts: 4,055
Salina ks
572_dup2 Offline OP
Back On The Bumper!!
572_dup2  Offline OP
Back On The Bumper!!

Joined: Aug 2003
Posts: 4,055
Salina ks
Quote:

EVEN the taller max wedge scoop would be period correct for your car and be the best functioning.




I personaly not interested in a period correct hood. It looks great on ur hot rod but not for me.


Shawn Jennings
Re: Holes in cowl hood [Re: 572_dup2] #466095
09/13/09 01:04 AM
09/13/09 01:04 AM
Joined: Nov 2003
Posts: 4,027
Dearborn Hts, MI
Sledge_57 Offline
master
Sledge_57  Offline
master

Joined: Nov 2003
Posts: 4,027
Dearborn Hts, MI
I can't even imagine how tall a "period correct" scoop would have to be to fit Shawns car, I think a MW scoop that tall would be one ugly beast.

Gonna have to be an aero scoop to fit that setup.

That's what I like about Shawn "dare to be different" and use what works best (heaven forbid) instead of what the "Mopar Gods" deemed correct.

Go for it, I wanna see a bumper draggin 8 second time slip

The scoop works for AJ and I'm pretty sure his car's all Mopar (if it matters )

5479242-08stratus005.jpg (44 downloads)

Doug

1967 "Pedal Car" 500" low deck , TF 727, 4.30 Locker
Best to Date: 11.67 @ 114.9 1.64 60ft

"Kids in cars cause accidents. Accidents in cars cause kids..."
Re: Holes in cowl hood [Re: Sledge_57] #466096
09/13/09 04:45 AM
09/13/09 04:45 AM
Joined: Nov 2005
Posts: 248
Sweden
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Tobbe Offline
enthusiast
Tobbe  Offline
enthusiast
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Joined: Nov 2005
Posts: 248
Sweden
when you all in to hood scoops here are more info



some youtube airflow vid´s
web page
web page
web page

Re: Holes in cowl hood [Re: Tobbe] #466097
09/13/09 06:03 AM
09/13/09 06:03 AM
Joined: Nov 2005
Posts: 248
Sweden
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Tobbe Offline
enthusiast
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Posts: 248
Sweden

Re: Holes in cowl hood [Re: 572_dup2] #466098
09/13/09 09:49 AM
09/13/09 09:49 AM
Joined: May 2008
Posts: 902
Mopar Lane,Mississippi
6
67HEMI Offline
super stock
67HEMI  Offline
super stock
6

Joined: May 2008
Posts: 902
Mopar Lane,Mississippi
Maybe you could get the Wescotts to help you. They run a PERIOD CORRECT type scoop and with less than 450 cubic inches they are running 8.40's @ 155 to 158.


'33 Plymouth 5 Window Coupe Blown Aluminum HEMI w/bolt ons (under construction) '69 Chrysler 300 Convertible 375 HP 440 '71 Plymouth Duster 360 W/EFI (Wife's Ride) '12 Ram MegaCab Dually 6.7 Cummins
Re: Holes in cowl hood [Re: 572_dup2] #466099
09/13/09 07:27 PM
09/13/09 07:27 PM

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Anonymous
Unregistered
Anonymous
Unregistered
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Quote:

Quote:

EVEN the taller max wedge scoop would be period correct for your car and be the best functioning.




I personaly not interested in a period correct hood. It looks great on ur hot rod but not for me.




then why do you still push transmission buttons,on your dash, do you still have your bench seat or did you take it out?
goodluck with your venture.

Re: Holes in cowl hood #466100
09/13/09 09:39 PM
09/13/09 09:39 PM
Joined: Aug 2003
Posts: 4,055
Salina ks
572_dup2 Offline OP
Back On The Bumper!!
572_dup2  Offline OP
Back On The Bumper!!

Joined: Aug 2003
Posts: 4,055
Salina ks
I like my push buttons an my bench seat cause its different. I dont wanna be like everyone else. Sometimes it bits me in the butt, but im different an my car reflects it.

An ya my hood will be different too


Shawn Jennings
Re: Holes in cowl hood [Re: 572_dup2] #466101
09/14/09 11:31 AM
09/14/09 11:31 AM
Joined: Jan 2003
Posts: 4,713
Moved to N.E. Tennessee
GomangoCuda Online work
master
GomangoCuda  Online Work
master

Joined: Jan 2003
Posts: 4,713
Moved to N.E. Tennessee
Quote:

Carbs are way to close to the top of the hood..you have to have atleast 1 inch over the vent tubes..2 inch is more like it..put you a nice looking aero scoop on it...I bet it would pick up 2 tenths..




I would have said the same thing an hour ago but then I saw the pics at Moparmax.com of both of the Wescot's cars at Indy.
http://www.moparmax.com/events/2009/iv_9-hemi-1.html
The vents look like they are holding the scoop up LOL. Conventional wisdom says that should not work . Duh.

I think I would try the short aero scoop on top of your existing cowl hood like a few others have suggested.

Last edited by GomangoCuda; 09/14/09 11:35 AM.

In theory, there is no difference between theory and practice. In practice, there is.
Re: Holes in cowl hood [Re: GomangoCuda] #466102
09/14/09 12:18 PM
09/14/09 12:18 PM
Joined: Jul 2004
Posts: 19,317
State of confusion
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Thumperdart Offline
I Live Here
Thumperdart  Offline
I Live Here
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Joined: Jul 2004
Posts: 19,317
State of confusion
I`ve been debating the issue of air horn clearance for years simply based on the super stock hemi`s......


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.....
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