CDA of the FD3S rx7?

Started by BlitzBoy, March 05, 2004, 04:14:44 PM

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BlitzBoy

March 05, 2004, 04:14:44 PM
anyone know this value? i need this to input into a performance meter
"Piston Killa" 3rd Gen\'94 \'Oldone Racing Full Bridge Ported REW 13b engine with SCR seals\'. HKS T51 KAI turbo BBM mapped Motec ECU

JDS/HKS Street Class Championship Runner up 2011
Rotorstock winner 08,09
http://pistonkilla.blogspot.com/
old spec HB T51 470 @ wheels @ 1.2 BAR, 555 @ fly 10.46 @ 130 @ 1.25 Bar
new spec FB T51 482 @ wheels @ 1.15 BAR, 570 @ fly

New Project
"el fénix" RX2 by Mark & Mark

kevint

#1
March 05, 2004, 04:24:11 PM
Is that the drag coefficient?  In which case it is 0.31 for a stock car with older style spoiler.

Kevin

BlitzBoy

#2
March 05, 2004, 04:25:50 PM
Not Quite Kevin, CD and CDa are different things

Someone must know
"Piston Killa" 3rd Gen\'94 \'Oldone Racing Full Bridge Ported REW 13b engine with SCR seals\'. HKS T51 KAI turbo BBM mapped Motec ECU

JDS/HKS Street Class Championship Runner up 2011
Rotorstock winner 08,09
http://pistonkilla.blogspot.com/
old spec HB T51 470 @ wheels @ 1.2 BAR, 555 @ fly 10.46 @ 130 @ 1.25 Bar
new spec FB T51 482 @ wheels @ 1.15 BAR, 570 @ fly

New Project
"el fénix" RX2 by Mark & Mark

J4P RX

#3
March 05, 2004, 04:27:11 PM
CDa is Drag Coeff multiplyed by frontal area if I remember corectly.  I spent ages trying to find frontal area with little sucess.  I recon you want it for similar reasons to me :D

Cheers
Lee

BlitzBoy

#4
March 05, 2004, 04:29:53 PM
arrrrggggh this is soo Frustrating Lee lol
"Piston Killa" 3rd Gen\'94 \'Oldone Racing Full Bridge Ported REW 13b engine with SCR seals\'. HKS T51 KAI turbo BBM mapped Motec ECU

JDS/HKS Street Class Championship Runner up 2011
Rotorstock winner 08,09
http://pistonkilla.blogspot.com/
old spec HB T51 470 @ wheels @ 1.2 BAR, 555 @ fly 10.46 @ 130 @ 1.25 Bar
new spec FB T51 482 @ wheels @ 1.15 BAR, 570 @ fly

New Project
"el fénix" RX2 by Mark & Mark

kevint

#5
March 06, 2004, 10:51:41 AM
Ok Guys:

Cd: 0.31
Frontal area (A): 1.79 sq meters, 19.26 sq feet
Cd x A: 0.55 sq meters, 5.98 sq feet

Source p71, The Mazda RX-7: Mazda\'s Legendary Sports Car
Yamaguchi & Dinkel

Kevin

BlitzBoy

#6
March 06, 2004, 11:33:06 AM
nice one kevin:)
"Piston Killa" 3rd Gen\'94 \'Oldone Racing Full Bridge Ported REW 13b engine with SCR seals\'. HKS T51 KAI turbo BBM mapped Motec ECU

JDS/HKS Street Class Championship Runner up 2011
Rotorstock winner 08,09
http://pistonkilla.blogspot.com/
old spec HB T51 470 @ wheels @ 1.2 BAR, 555 @ fly 10.46 @ 130 @ 1.25 Bar
new spec FB T51 482 @ wheels @ 1.15 BAR, 570 @ fly

New Project
"el fénix" RX2 by Mark & Mark

g11ary

#7
March 06, 2004, 11:36:07 AM
what the fduk would you want to know the cda of a car for.

J4P RX

#8
March 06, 2004, 11:49:11 AM
Top speed calculation :D
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