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Re: LET`S TALK AERODYNAMICS....................
[Re: 3ddart]
#1446820
06/04/13 10:12 AM
06/04/13 10:12 AM
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Joined: Jan 2003
Posts: 10,011
Frostbitefalls MN (Rocky&Bullw...
gregsdart
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,011
Frostbitefalls MN (Rocky&Bullw...
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off topic, but yer lookin fer speed, right? I would look into a taller sixpack style scoop, if you are willing to consider it. I don't know exactly how much it is worth, but there are scoops built two inches higher to get above the boundry air layer better.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: LET`S TALK AERODYNAMICS....................
[Re: gregsdart]
#1446821
06/04/13 10:25 AM
06/04/13 10:25 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:
off topic, but yer lookin fer speed, right? I would look into a taller sixpack style scoop, if you are willing to consider it. I don't know exactly how much it is worth, but there are scoops built two inches higher to get above the boundry air layer better.
To find out if he needs more air he can tape some
cardboard to the front of the scoop to bring the inlet
to the front of the hood... with the top edge of the
inlet a bit longer on the top to hang out just a bit..
seal it to the hood... that will pick up more air
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Re: LET`S TALK AERODYNAMICS....................
[Re: MR_P_BODY]
#1446822
06/04/13 10:48 AM
06/04/13 10:48 AM
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Joined: Jan 2006
Posts: 452
nc
cold85
mopar
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mopar
Joined: Jan 2006
Posts: 452
nc
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Quote:
Quote:
off topic, but yer lookin fer speed, right? I would look into a taller sixpack style scoop, if you are willing to consider it. I don't know exactly how much it is worth, but there are scoops built two inches higher to get above the boundry air layer better.
To find out if he needs more air he can tape some
cardboard to the front of the scoop to bring the inlet
to the front of the hood... with the top edge of the
inlet a bit longer on the top to hang out just a bit..
seal it to the hood... that will pick up more air
lower block off between valance and add a chin spoiler mine is off a 68 camaro
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Re: LET`S TALK AERODYNAMICS....................
[Re: cold85]
#1446823
06/04/13 11:11 AM
06/04/13 11:11 AM
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Joined: Feb 2009
Posts: 1,532
off the grid
340B5
pro stock
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pro stock
Joined: Feb 2009
Posts: 1,532
off the grid
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I keep looking under mine thinking....'what catches air".... Ever see those little wings in front of the rear fuel dragster tires?
And then there are those air deflectors you see on the side of a few semi trailers nowadays.
Yeah, it's got a smallblock.
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Re: LET`S TALK AERODYNAMICS....................
[Re: gregsdart]
#1446826
06/04/13 01:05 PM
06/04/13 01:05 PM
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Joined: Jan 2003
Posts: 684
St. Charles, MO.
Slingshot383
mopar
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mopar
Joined: Jan 2003
Posts: 684
St. Charles, MO.
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Make a belly pan to go under the car, from the core support to as close to the firewall as you can, put a flat panel in front of the grill and headlights, you can do that with clear plex, and you will still see both the headlights and grill. Cover the area under the bumper to the volance, let the radiator get it's air from in front of the core support.
1994 Undercover Chassis 125" altered
stack injected big block, soon blown and injected
Member of The Torque and Recoil Club
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Re: LET`S TALK AERODYNAMICS....................
[Re: Thumperdart]
#1446828
06/04/13 01:40 PM
06/04/13 01:40 PM
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Joined: Jan 2004
Posts: 4,573
Motor City
6PKRTSE
master
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master
Joined: Jan 2004
Posts: 4,573
Motor City
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My buddies 68 Drag Radial Chevelle runs 7:60's at 165+ in the quarter & we had a starting line incident one time when the car didn't start. The other guy waited patiently for us to get started. Once the track official gave him the go & we finally got it started we did not have enough time to get the removeable deck lid & wing installed & made a pass anyway without them. We won the race & went 2 MPH faster than it ever has. Made me a believer that all of these big wings on the back make no difference. The car is not at speed long enough to notice.
1963 Belvedere 440 Max Wedge Tribute
1970 Charger R/T S.E. 440 Six Pack
1970 Challenger R/T, 528 Hemi
1970 Charger 500 S.E. 440 4 BBL
1970 Plymouth Road Runner 383
1974 Chrysler New Yorker 440
1996 2500 RAM 488 V-10 4X4
2004 3500 Dually Cummins 4x4
2012 Challenger R/T Classic.
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Re: LET`S TALK AERODYNAMICS....................
[Re: 6PKRTSE]
#1446829
06/04/13 01:43 PM
06/04/13 01:43 PM
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Joined: Jul 2004
Posts: 19,318
State of confusion
Thumperdart
OP
I Live Here
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OP
I Live Here
Joined: Jul 2004
Posts: 19,318
State of confusion
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This is interesting............  Makes me almost want to do NOTHING to my heap...............
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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Re: LET`S TALK AERODYNAMICS....................
[Re: Thumperdart]
#1446830
06/04/13 01:54 PM
06/04/13 01:54 PM
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Joined: Feb 2003
Posts: 1,942
Metro Detroit
OUTLAWD
top fuel
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top fuel
Joined: Feb 2003
Posts: 1,942
Metro Detroit
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Same as cold85 here.
69 camaro spoiler...~$30 from summit, and made some tubing braces for it. No ET change, but made it feel a whole lot better over 100mph
Faster, Faster until the thrill of speed overcomes the fear of death...
71 Swinger - slowly collecting dust/parts
66 Belv. II - just a streetcar
88 Mustang - turbo LS beater
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Re: LET`S TALK AERODYNAMICS....................
[Re: Duner]
#1446833
06/04/13 02:23 PM
06/04/13 02:23 PM
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Joined: Jan 2003
Posts: 6,392
nielsville, minn.
quickd100
master
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master
Joined: Jan 2003
Posts: 6,392
nielsville, minn.
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Quote:
Even if aero doesn't come into play until after 100 mph - that's still the second half of the track for most everybody that's interested in it.
At 38.5 square feet of frontal area I can tell you I can definately see and feel a difference even at 60mph.Dave 
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Re: LET`S TALK AERODYNAMICS....................
[Re: Duner]
#1446834
06/04/13 02:44 PM
06/04/13 02:44 PM
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Joined: Aug 2003
Posts: 43,233
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,233
Bend,OR USA
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Quote:
Even if aero doesn't come into play until after 100 mph - that's still the second half of the track for most everybody that's interested in it.
I use to go out to the SCTA (Bonniville top speed racers) races at El Mirage dry lake and talk to some of those racers, there thoughts that aerodynamics didn't come into play under 125 MPH on thier course, one mile running start and timed for a short distance after that  At the Salt Flats the course was a lot longer and a lot of the racers would say that anybody can run 125 MPH, some can run 150 MPH and after that(150+ MPH) it is way better to reduce drag than to hop up the motor, they even siad that it took twice the HP to from 150 MPH to 175 MPH  I know some formula one airplane racers that basically say the same thing, work on smoothing and reducing the aerodynamic drag to go faster above 150 MPH
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: LET`S TALK AERODYNAMICS....................
[Re: Cab_Burge]
#1446835
06/04/13 03:48 PM
06/04/13 03:48 PM
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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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I have watched a lot of wind tunnel testing at work and seen my problem when I hit 130 mph. at that point the rear of my car started lifting off the ground.. the rear spoiler/wing made a BIG difference... it made the car stable and picked up 3 mph with just the wing.. I was spinning on top end but didnt know it till I lost control with a 15 mph head wind(which just adds to what your car thinks its going)... but my car is a hatch back with a short trunk area... it was sucking the car upward... non of these cars were tested above about 120 mph... thats the reason all of the prostocks and other QUICK cars test in the tunnel
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I should of kept the 80`s Arrow that I had years ago.........it even had a tag on the door from the Highway Patroll that allowed it to have a V-8 in it but I sold it not knowing how bad ass it would be w/my junk in it. Live n learn so, I`ll start messin w/some of these ideas and my carb guy Ron at PC Carbs said to drill holes in the back of my air pan to let air go through it and that should take care of the vaccum or what ever the hell is happening in that mess. I couldn`t find a 6-pac scoop anywhere that was more than 1" taller than mine so............ 
