Anyone know the frontal area of a 2005+ Tacoma?

ElectronMan · 02-11-2010, 03:54 PM

I'm bored and wanted to do some drag force/top speed calculations. I've got the coefficient of drag and I've estimated the frontal area to be 24 ft2, but that seems awfully high. Anyone have a more solid number?

Cheeto6182 · 04-12-2010, 01:46 PM

Did you ever figure this out (frontal-area)? I've found drag-coefficients of .36 and .39 but I'm not sure of the frontal area. Want to enter the data into my new dashdyno

Tillers_Rule · 04-12-2010, 01:48 PM

Why not just measure it? Then we would all know

Ways to measure frontal area

Jester243 · 04-12-2010, 01:51 PM

Quote:

Originally Posted by ElectronMan

I'm bored and wanted to do some drag force/top speed calculations.

you need to get laid

Jason'sLawnCare · 04-12-2010, 01:57 PM

Quote:

Originally Posted by ElectronMan

I'm bored and wanted to do some drag force/top speed calculations. I've got the coefficient of drag and I've estimated the frontal area to be 24 ft2, but that seems awfully high. Anyone have a more solid number?

Is that including the windshield? If then that sounds about right. Just pulling numbers out of my ass but the windshield is probably around 2x7 ft that's right there is 14sqft or am I doing this wrong?

Cheeto6182 · 04-12-2010, 02:28 PM

this is how the Dynodash manual says to calculate:

Calculation of Frontal Area

Frontal area can be calculated for any car. The frontal area represents the front projection area
of the vehicle. If one takes a straight-on picture of the front of a vehicle, it is the area included
in the outline. Use the following to calculate:
1. Calculate the area of a rectangle, which would encompass the front of the vehicle
(multiply width by the height).
2. Adjust the figure obtained above for areas not included, such as top rounded corners,
etc. Typical adjusting values are 85 percent for cars, and 100 percent for trucks.

according to the specs from toyota the tacoma Dbl cab is 70.1 in (5.84 ft) High and 74.6 in (6.21ft) wide.

I do have a lift and higher tires though, do you guys think that matters? Because if the truck is lifted the air gap under the truck is increased and thus not adding to the surface area of the truck... this science is hard science lol.

Jason'sLawnCare · 04-12-2010, 02:33 PM

Quote:

Originally Posted by Cheeto6182

this is how the Dynodash manual says to calculate:

Calculation of Frontal Area

Frontal area can be calculated for any car. The frontal area represents the front projection area
of the vehicle. If one takes a straight-on picture of the front of a vehicle, it is the area included
in the outline. Use the following to calculate:
1. Calculate the area of a rectangle, which would encompass the front of the vehicle
(multiply width by the height).
2. Adjust the figure obtained above for areas not included, such as top rounded corners,
etc. Typical adjusting values are 85 percent for cars, and 100 percent for trucks.

according to the specs from toyota the tacoma Dbl cab is 70.1 in (5.84 ft) High and 74.6 in (6.21ft) wide.

I do have a lift and higher tires though, do you guys think that matters? Because if the truck is lifted the air gap under the truck is increased and thus not adding to the surface area of the truck... this science is hard science lol.

You're still increasing the area to some extent. More tire and possible lca are exposed now. Also all the increased turbulence under the truck may affect it?

kbp68 · 04-12-2010, 02:34 PM

Quote:

Originally Posted by Jester243

you need to get laid

x2

Cheeto6182 · 04-12-2010, 02:40 PM

I'VE GOT AN IDEA! I just need a few other knuckle heads to confirm my theory. what If I take a string, run it flat under the truck, then bring it up the sides, over the top of the windshield, and tie it off, that should be a perfect outline of the trucks frontal silhouette, then I can square off the string and theoretically.... vuala - frontal area!
BUT! Somewhere in my head I remember a geometry lesson that used a piece of string, when she made a SQUARE with the length of string somehow the cows had more grazing area than the cows in the rectangular area made with the same length lol.
any thoughts? and no talking shit about my cows

skunk · 04-12-2010, 02:42 PM

Quote:

Originally Posted by Jester243

you need to get laid

Phlip4x4Sport · 04-12-2010, 02:59 PM

Yes, square/rectangle does matter:
4
2 2
4

perimeter length = 12, area = 8

3
3 3
3
perimeter length = 12, area = 9

Cheeto6182 · 04-12-2010, 03:05 PM

damn... back to the drawing board. Any other ideas out there?

02-11-2010, 03:54 PM	#1
ElectronMan [OP] Member Joined: Apr 2009, #16455 Location: SC Gender: Male Posts: 93	Anyone know the frontal area of a 2005+ Tacoma? I'm bored and wanted to do some drag force/top speed calculations. I've got the coefficient of drag and I've estimated the frontal area to be 24 ft2, but that seems awfully high. Anyone have a more solid number? __________________ My FX-R Bi-Xenon Retro Thread

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Tacoma 4x4 Mud Flaps complete set 2005 to 2011 Tacoma $150	Tacozona	2nd Gen Tacoma Marketplace	1	09-27-2011 09:06 PM
2005 Chevy Silverado Crew Cab Z71 - TRADE for 2005+ Tacoma Double Cab 4x4	jwicker	Buy / Sell / Trade	1	12-27-2010 07:08 PM
Craigslist deal: LA area 2005 tail lights	KDogg311	Buy / Sell / Trade	1	11-22-2010 08:23 AM
CL Find Silver Double Cab Camper Cap off 2005 Tacoma Washington DC Virginia Area $400	bamma	Buy / Sell / Trade	1	04-20-2010 09:11 AM
WTB 2005-2005 Tacoma	phoneguy44	Buy / Sell / Trade	0	02-15-2010 12:38 PM

04-12-2010, 01:46 PM	#2
Cheeto6182 Cheeto Name: Sean G Joined: Apr 2007, #1308 Location: Tucson, AZ Age: 29 Gender: Male Posts: 92 05 Tacoma TRD Offroad DoubleCab 2005 Double Cab Automatic 4.0 JBA Headers, Airaid Intake, Spal Electric Fan Conversion, TBS lol, Borla Exhaust, RevTek 3" Front Space Lift, Firestone Airbags Rear, Rancho RS5000's, Alpine system (type R's), Tonneau Cover, 4.56 Gearing, 285/75/R16, Shiny Rims, Bed Carpeting, SoftTopper, Ram Air intake Mod, URD MAF, Dash Dyno, One Piece Drive-Shaft Conversion, Bed Cubby Led Lights	Did you ever figure this out (frontal-area)? I've found drag-coefficients of .36 and .39 but I'm not sure of the frontal area. Want to enter the data into my new dashdyno

04-12-2010, 01:48 PM	#3
Tillers_Rule ...................... Name: Jeff Joined: Mar 2008, #5418 Location: San Diego Age: 36 Gender: Male Posts: 774 4x4 Sport, debadged 2006 Double Cab Automatic 4.0 Liter V6 Icon coil overs up front, Total Chaos UCA, Icon remote reservoir in the back with Deaver 11 pack leafs. Sunroof, Hella 500's behind grill.	Why not just measure it? Then we would all know Ways to measure frontal area

04-12-2010, 02:28 PM	#6
Cheeto6182 Cheeto Name: Sean G Joined: Apr 2007, #1308 Location: Tucson, AZ Age: 29 Gender: Male Posts: 92 05 Tacoma TRD Offroad DoubleCab 2005 Double Cab Automatic 4.0 JBA Headers, Airaid Intake, Spal Electric Fan Conversion, TBS lol, Borla Exhaust, RevTek 3" Front Space Lift, Firestone Airbags Rear, Rancho RS5000's, Alpine system (type R's), Tonneau Cover, 4.56 Gearing, 285/75/R16, Shiny Rims, Bed Carpeting, SoftTopper, Ram Air intake Mod, URD MAF, Dash Dyno, One Piece Drive-Shaft Conversion, Bed Cubby Led Lights	this is how the Dynodash manual says to calculate: Calculation of Frontal Area Frontal area can be calculated for any car. The frontal area represents the front projection area of the vehicle. If one takes a straight-on picture of the front of a vehicle, it is the area included in the outline. Use the following to calculate: 1. Calculate the area of a rectangle, which would encompass the front of the vehicle (multiply width by the height). 2. Adjust the figure obtained above for areas not included, such as top rounded corners, etc. Typical adjusting values are 85 percent for cars, and 100 percent for trucks. according to the specs from toyota the tacoma Dbl cab is 70.1 in (5.84 ft) High and 74.6 in (6.21ft) wide. I do have a lift and higher tires though, do you guys think that matters? Because if the truck is lifted the air gap under the truck is increased and thus not adding to the surface area of the truck... this science is hard science lol.

04-12-2010, 02:40 PM	#9
Cheeto6182 Cheeto Name: Sean G Joined: Apr 2007, #1308 Location: Tucson, AZ Age: 29 Gender: Male Posts: 92 05 Tacoma TRD Offroad DoubleCab 2005 Double Cab Automatic 4.0 JBA Headers, Airaid Intake, Spal Electric Fan Conversion, TBS lol, Borla Exhaust, RevTek 3" Front Space Lift, Firestone Airbags Rear, Rancho RS5000's, Alpine system (type R's), Tonneau Cover, 4.56 Gearing, 285/75/R16, Shiny Rims, Bed Carpeting, SoftTopper, Ram Air intake Mod, URD MAF, Dash Dyno, One Piece Drive-Shaft Conversion, Bed Cubby Led Lights	I'VE GOT AN IDEA! I just need a few other knuckle heads to confirm my theory. what If I take a string, run it flat under the truck, then bring it up the sides, over the top of the windshield, and tie it off, that should be a perfect outline of the trucks frontal silhouette, then I can square off the string and theoretically.... vuala - frontal area! BUT! Somewhere in my head I remember a geometry lesson that used a piece of string, when she made a SQUARE with the length of string somehow the cows had more grazing area than the cows in the rectangular area made with the same length lol. any thoughts? and no talking shit about my cows

04-12-2010, 02:59 PM	#11
Phlip4x4Sport Senior Member Joined: Aug 2008, #8830 Location: Santa Monica, CA Age: 45 Gender: Male Posts: 243 08 Double 4x4 Sport 2008 Double Cab Automatic V6 Turned off seatbelt chime!, Pop-N-Lock, G4 Elite bedcover, Rear diff breather mod, LT265/70 R17 BFG AT's	Yes, square/rectangle does matter: 4 2 2 4 perimeter length = 12, area = 8 3 3 3 3 perimeter length = 12, area = 9

04-12-2010, 03:05 PM	#12
Cheeto6182 Cheeto Name: Sean G Joined: Apr 2007, #1308 Location: Tucson, AZ Age: 29 Gender: Male Posts: 92 05 Tacoma TRD Offroad DoubleCab 2005 Double Cab Automatic 4.0 JBA Headers, Airaid Intake, Spal Electric Fan Conversion, TBS lol, Borla Exhaust, RevTek 3" Front Space Lift, Firestone Airbags Rear, Rancho RS5000's, Alpine system (type R's), Tonneau Cover, 4.56 Gearing, 285/75/R16, Shiny Rims, Bed Carpeting, SoftTopper, Ram Air intake Mod, URD MAF, Dash Dyno, One Piece Drive-Shaft Conversion, Bed Cubby Led Lights	damn... back to the drawing board. Any other ideas out there?