06+ STI vs EVO IX aerodynamics, and the history of Subaru vs Mitsu aero design

Guest_1u53r · 11-22-2006, 04:16 PM

**Alex** · 11-22-2006, 04:49 PM

Greate writeup Nick!

***reeksti*** · 11-22-2006, 04:53 PM

very good write up man

tecnica · 11-22-2006, 05:43 PM

nice read.

JJ18Sniper · 11-22-2006, 05:48 PM

Glad to see your chiming in information again Nick!

***VSGTS14*** · 11-22-2006, 05:53 PM

now we know why subaru redesigned the hood scoop...you can totally see it kind of just "cuts" the air diverting part over the car, part into the engine bay with no disturbance..
freakin sweet.

Guest_1u53r · 11-22-2006, 06:03 PM

I have to suspect that the 04/05 style scoop would have more turbulence right behind it...

***VSGTS14*** · 11-22-2006, 06:06 PM

probably and around the sides, it probably sucks ass.

i wish there was a test on the 04/05 body style.

Guest_1u53r · 11-22-2006, 06:13 PM

Me too

I haven't seen one yet.

krazyk1371 · 11-22-2006, 06:59 PM

subscribed for future reference.

ilovecarbs · 11-22-2006, 07:11 PM

As I posted in the other EVO vs. STi Aero thread regarding the V-Limited front lip, what exactly does a 36% improvement in coefficient of drag really equate to, performance wise?

Guest_1u53r · 11-22-2006, 07:14 PM

Well, first of all, I am not sure that the lip really yields a 36% improvement in drag, but it definitely does improve it. Basically, what the reduction in drag would do is slightly improve your high-speed acceleration, but moreover, would improve fuel economy slightly.

ilovecarbs · 11-22-2006, 07:17 PM

So it does nothing to combat the front end lift characteristics?

***wdb*** · 11-24-2006, 06:03 AM

I can't find a clean cite at the moment but the original V-Limited lip did not reduce drag by 36%, it reduced front end lift by 36%. The number came from SoJ or STi literature.

Great collection of information Nick, as usual! Thanks for putting it all in one place.

Madrider · 11-24-2006, 06:57 AM

Nice write up. Should be a sticky

for future reference.

11-22-2006, 04:16 PM	#1
Guest_1u53r Banned Fav Mod: knowledge Location: Bristow, VA Posts: 392 Join Date: Apr 2003 Trader Rating: (1)	06+ STI vs EVO IX aerodynamics, and the history of Subaru vs Mitsu aero design This ad is not endorsed by this member. Please register or login to hide this ad. Last edited by Nachos Libres : 03-30-2007 at 02:37 PM.

11-24-2006, 06:57 AM	#15
Madrider Professional STI Driver Car: MY04STi Prodrive Fav Mod: Prodrive Location: Republic of Turkey Posts: 407 Join Date: Mar 2004 Trader Rating: (0)	Nice write up. Should be a sticky for future reference. This ad is not endorsed by this member. Please register or login to hide this ad.

11-22-2006, 04:49 PM	#2
Alex Authorized Vendor Car: 2004.5 STi Fav Mod: alcantara...everything! Location: 3000+ pollen count land! Posts: 1,824 Join Date: Nov 2003 Trader Rating: (9)	Greate writeup Nick!

11-22-2006, 04:53 PM	#3
*reeksti* Friendlys Suby Car: 06 CGM/Emotions Fav Mod: M&J Modified Location: Bensalem, PA Posts: 7,177 Join Date: Jan 2006 Trader Rating: (10)	very good write up man

11-22-2006, 05:43 PM	#4
tecnica Junior STI Driver Car: MR-S Fav Mod: nike shoes Location: Stevens Point, Wi Posts: 161 Join Date: Feb 2006 Trader Rating: (2)	nice read.

11-22-2006, 05:48 PM	#5
JJ18Sniper Silver Member Car: 05 Subaru WRX STi Fav Mod: DB 20G, Diamond Black BBS RE's, S2K retrofit Location: NY Posts: 4,555 Join Date: Jul 2004 Trader Rating: (6)	Glad to see your chiming in information again Nick!

11-22-2006, 05:53 PM	#6
*VSGTS14* Muller Chevrolet Car: 08 Chevy 2500HD Fav Mod: a new 08 STi Location: Milford, NJ Posts: 9,851 Join Date: Oct 2004 Trader Rating: (11)	now we know why subaru redesigned the hood scoop...you can totally see it kind of just "cuts" the air diverting part over the car, part into the engine bay with no disturbance.. freakin sweet.

11-22-2006, 06:03 PM	#7
Guest_1u53r Banned Fav Mod: knowledge Location: Bristow, VA Posts: 392 Join Date: Apr 2003 Trader Rating: (1)	I have to suspect that the 04/05 style scoop would have more turbulence right behind it...

11-22-2006, 06:06 PM	#8
*VSGTS14* Muller Chevrolet Car: 08 Chevy 2500HD Fav Mod: a new 08 STi Location: Milford, NJ Posts: 9,851 Join Date: Oct 2004 Trader Rating: (11)	probably and around the sides, it probably sucks ass. i wish there was a test on the 04/05 body style.

11-22-2006, 06:13 PM	#9
Guest_1u53r Banned Fav Mod: knowledge Location: Bristow, VA Posts: 392 Join Date: Apr 2003 Trader Rating: (1)	Me too I haven't seen one yet.

11-22-2006, 06:59 PM	#10
krazyk1371 Professional STI Racer Car: '06 WRB/Silver STI Fav Mod: Kartboy Gear Location: San Marcos, Ca. Posts: 702 Join Date: Mar 2006 Trader Rating: (1)	subscribed for future reference.

11-22-2006, 07:11 PM	#11
ilovecarbs STI Driver Car: '06 CGM/Gold STi Location: Socal Posts: 251 Join Date: May 2006 Trader Rating: (0)	As I posted in the other EVO vs. STi Aero thread regarding the V-Limited front lip, what exactly does a 36% improvement in coefficient of drag really equate to, performance wise?

11-22-2006, 07:14 PM	#12
Guest_1u53r Banned Fav Mod: knowledge Location: Bristow, VA Posts: 392 Join Date: Apr 2003 Trader Rating: (1)	Well, first of all, I am not sure that the lip really yields a 36% improvement in drag, but it definitely does improve it. Basically, what the reduction in drag would do is slightly improve your high-speed acceleration, but moreover, would improve fuel economy slightly.

11-22-2006, 07:17 PM	#13
ilovecarbs STI Driver Car: '06 CGM/Gold STi Location: Socal Posts: 251 Join Date: May 2006 Trader Rating: (0)	So it does nothing to combat the front end lift characteristics?

11-24-2006, 06:03 AM	#14
*wdb* dances with roads Posts: 5,022 Join Date: Apr 2005 Trader Rating: (8)	I can't find a clean cite at the moment but the original V-Limited lip did not reduce drag by 36%, it reduced front end lift by 36%. The number came from SoJ or STi literature. Great collection of information Nick, as usual! Thanks for putting it all in one place.