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air packing #2093431 06/17/16 11:09 AM 06/17/16 11:09 AM
Joined: Feb 2003 Posts: 6,849 F fullmetaljacket OP master
fullmetaljacket OP master F Joined: Feb 2003 Posts: 6,849	I'm not an ace on this, but perhaps someone can hone in on some ideas. Lets just say, if air entering an opening is of course first allowed usage/passage of that entire opening but then narrowed down as it gets half way in, will it pressurize itself thus speed it up more?

Re: air packing [Re: fullmetaljacket] #2093437 06/17/16 11:26 AM 06/17/16 11:26 AM
Joined: Feb 2005 Posts: 20,166 PA. pittsburghracer "Little"John
pittsburghracer "Little"John Joined: Feb 2005 Posts: 20,166 PA.	Bernoulli principle Not sure if this is what you are talking about. https://en.wikipedia.org/wiki/Talk:Venturi_effect Last edited by pittsburghracer; 06/17/16 11:27 AM. 1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27 Livin and lovin life one day at a time

Re: air packing [Re: fullmetaljacket] #2093438 06/17/16 11:28 AM 06/17/16 11:28 AM
Joined: Feb 2005 Posts: 20,166 PA. pittsburghracer "Little"John
pittsburghracer "Little"John Joined: Feb 2005 Posts: 20,166 PA.	Oh well I tried to copy and paste but I have a race to get to. 1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27 Livin and lovin life one day at a time

Re: air packing [Re: fullmetaljacket] #2093442 06/17/16 11:38 AM 06/17/16 11:38 AM
Joined: Oct 2010 Posts: 2,407 Ambridge, Pa. R rickraw top fuel
rickraw top fuel R Joined: Oct 2010 Posts: 2,407 Ambridge, Pa.	I'll say yes. Same principle as a radiator shroud. Air builds pressure in front of shroud which increases air speed out the other side.

Re: air packing [Re: fullmetaljacket] #2093453 06/17/16 12:13 PM 06/17/16 12:13 PM
Joined: Jan 2005 Posts: 2,540 Milwaukee WI T TRENDZ master
TRENDZ master T Joined: Jan 2005 Posts: 2,540 Milwaukee WI	Not enough info for an accurate answer. If air is moving (A: what is making it move) velocity will go up (to a point based on "A") if the orifice is decreased in size, while pressure will rise as it approaches the minimum area. "use it 'till it breaks, replace as needed"

Re: air packing [Re: fullmetaljacket] #2093830 06/18/16 04:30 AM 06/18/16 04:30 AM
Joined: Jan 2003 Posts: 27,421 Balt. Md 3 383man Too Many Posts
383man Too Many Posts 3 Joined: Jan 2003 Posts: 27,421 Balt. Md	Makes me think of a carb venturi. The air will speed up when it hits the smaller area and create a low pressure area in the venturi. But that is air being pushed by atmospheric pressure into the low pressure area. Ron

Re: air packing [Re: fullmetaljacket] #2093840 06/18/16 09:24 AM 06/18/16 09:24 AM
Joined: Jan 2003 Posts: 6,389 nielsville, minn. Q quickd100 master
quickd100 master Q Joined: Jan 2003 Posts: 6,389 nielsville, minn.	I bought a electronic manometer to see if my cobbled together ram air system was working. At 90mph I had .3 lbs. positive pressure just in front of the carbs. Dave

Re: air packing [Re: quickd100] #2093855 06/18/16 10:25 AM 06/18/16 10:25 AM
Joined: Feb 2003 Posts: 6,849 F fullmetaljacket OP master
fullmetaljacket OP master F Joined: Feb 2003 Posts: 6,849	Lets first call the vast inside area of my outdated scoop attached below as the "Facility" I'm just thinking of a poor mans super charger effect utilizing the scoop by creating a series of dams with various foils or spoilers inside the "facility" that will probably only work at speed. I have a few drawings that will take time to develop into actual dams that will then be temporarily affixed inside and do some testing Motown Missile style.

Re: air packing [Re: fullmetaljacket] #2093858 06/18/16 10:28 AM 06/18/16 10:28 AM
Joined: Feb 2003 Posts: 6,849 F fullmetaljacket OP master
fullmetaljacket OP master F Joined: Feb 2003 Posts: 6,849	Here's my boys Poison Dart with the ever so popular Hurst Hemi scoop and it might not work as good on it because of the short field in the "Facility" But I will give it a try. Last edited by fullmetaljacket; 06/18/16 10:30 AM.

Re: air packing [Re: fullmetaljacket] #2093935 06/18/16 02:04 PM 06/18/16 02:04 PM
Joined: Jan 2003 Posts: 5,762 Hot Rod Ridge FastmOp master
FastmOp master Joined: Jan 2003 Posts: 5,762 Hot Rod Ridge	I think what you are talking about can't hurt anything. I added a daily newspaper mail box (paper box) to my old 440 in my 67 belvedere and picked up 3 tenths over no hood. I know you will pick up MPH if you block off the grill

Re: air packing [Re: FastmOp] #2093960 06/18/16 02:44 PM 06/18/16 02:44 PM
Joined: Jul 2004 Posts: 19,317 State of confusion T Thumperdart I Live Here
Thumperdart I Live Here T Joined: Jul 2004 Posts: 19,317 State of confusion	I lost et blocking the grill in back 2 back tests but I believe it was due to the "pocket" since I attached it inboard but if you can mount it flush it may work better............ 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: air packing [Re: Thumperdart] #2094066 06/18/16 06:58 PM 06/18/16 06:58 PM
Joined: Feb 2003 Posts: 6,849 F fullmetaljacket OP master
fullmetaljacket OP master F Joined: Feb 2003 Posts: 6,849	I appreciate the concern about my grill and some good pointers, but you do know I am talking about the inside of the scoop right? I have some ideas which are wild, but may work upstairs.

Re: air packing [Re: fullmetaljacket] #2094077 06/18/16 07:04 PM 06/18/16 07:04 PM
Joined: Jul 2004 Posts: 19,317 State of confusion T Thumperdart I Live Here
Thumperdart I Live Here T Joined: Jul 2004 Posts: 19,317 State of confusion	Originally Posted By fullmetaljacket Lets first call the vast inside area of my outdated scoop attached below as the "Facility" I'm just thinking of a poor mans super charger effect utilizing the scoop by creating a series of dams with various foils or spoilers inside the "facility" that will probably only work at speed. I have a few drawings that will take time to develop into actual dams that will then be temporarily affixed inside and do some testing Motown Missile style. If you shoot me your cell # I`ll send a pick of my air dams that I`ve tested and really work along w/a sealed air pan and pressure release holes at the rear of my 6-pack scoop.............. Last edited by Thumperdart; 06/18/16 07:04 PM. 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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