Spoiler that with help performance but not harm mpg? - Page 3 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

DVNARC · 08-14-2015, 12:23 PM

Quote:

Originally Posted by Tcoat

No.
With more down force you get drag.
You can also have up force, lateral force or neutral force that will create drag all dependent on what is creating the force.

Well as much as I like the gt wing I have a stock body and I don't want to rice my car and I think the duckbill v2 or v3 look good and in leaning towards v2 but what you think v2 or v3

Tcoat · 08-14-2015, 12:26 PM

Quote:

Originally Posted by DVNARC

Well as much as I like the gt wing I have a stock body and I don't want to rice my car and I think the duckbill v2 or v3 look good and in leaning towards v2 but what you think v2 or v3

LOL Wrong guy to ask that as my answer is neither. I like more subtle and have the stock Scion one.
If that torn between two you like just flip a coin.

DVNARC · 08-14-2015, 12:40 PM

Quote:

Originally Posted by Tcoat

LOL Wrong guy to ask that as my answer is neither. I like more subtle and have the stock Scion one.
If that torn between two you like just flip a coin.

Is the down force only good for cornering? And bad for acceleration/straightaways?

Tcoat · 08-14-2015, 12:45 PM

Quote:

Originally Posted by DVNARC

Is the down force only good for cornering? And bad for acceleration/straightaways?

Down force is good all the time when traveling fast enough to need it. Unless you are racing and can hit those speeds it means nothing.
As has been said many times 99% of the spoilers on these cars are for cosmetic reasons only. Nothing wrong with that either (unless you have a monster wing on an otherwise stock car then you just look silly).

Tectoniic · 08-14-2015, 01:43 PM

OP, what people are trying to get across is the spoiler will not matter for your daily driving. Also don't worry about what spoiler other people like, it's your car.

strat61caster · 08-14-2015, 01:52 PM

straightsnapekillsgaydumbledore.com

continuecrushing · 08-14-2015, 02:29 PM

just buy the spoiler you like.

Ammunition · 08-14-2015, 02:39 PM

Quote:

Originally Posted by DVNARC

I like the gt wing but my friend said its pointless at street speeds and adds too much drag...so I was thinking of getting the rocket bunny duck bill? Thoughts?

Yes, any "wing" that rises over the trunk while still letting air pass under it will hurt mpg, and won't have any benefit for normal street use (they also tend to be big) - their purpose is to create drag to remain planted during cornering and to an extreme extent - to avoid lift-off during very, very high speeds.

The FR-S has an almost ideal rear slant angle for drag reduction; a well designed, quality spoiler will net you a very slight decrease in the coefficient of drag because it will deflect the flow coming off the trunk slightly higher. I believe the video containing a lot of information regarding this is still posted on the front page of the website.

I don't think either will net you notable benefit for regular street use, so if you're set on adding a spoiler for the cosmetic appeal, I would just pick the one you like in that regard. A large wing will likely hurt mpg and depending on where you live I would be concerned about it attracting negative attention to your car.

El Guapo · 08-14-2015, 03:30 PM

Quote:

Originally Posted by Ammunition

Yes, any "wing" that rises over the trunk while still letting air pass under it will hurt mpg, and won't have any benefit for normal street use (they also tend to be big) - their purpose is to create down force to remain planted during cornering and to an extreme extent - to avoid lift-off during very, very high speeds.

FIFY, and while that is the idea, most of the wings you see are pretty much for looks OP.

soulreapersteve · 08-14-2015, 04:34 PM

Quote:

Originally Posted by strat61caster

straightsnapekillsgaydumbledore.com

Hmmmm..... I'm afraid. Very afraid.

1GiantTurtle · 08-15-2015, 03:44 PM

Quote:

Originally Posted by soulreapersteve

Dude, don't do that. Do this.

I'll leave this here

soulreapersteve · 08-15-2015, 04:34 PM

Quote:

Originally Posted by 1GiantTurtle

I'll leave this here

What the hell!?

At least it appears to be functional... Super beefy tires.

I would be paranoid of that thing falling off every time I drive.

1GiantTurtle · 08-15-2015, 05:21 PM

Quote:

Originally Posted by soulreapersteve

What the hell!?

At least it appears to be functional... Super beefy tires.

I would be paranoid of that thing falling off every time I drive.

i bet i can sit on the wing no problem, its pretty much attached to the frame.

soulreapersteve · 08-15-2015, 06:30 PM

Quote:

Originally Posted by 1GiantTurtle

i bet i can sit on the wing no problem, its pretty much attached to the frame.

08-14-2015, 01:43 PM	#33
Tectoniic #FiftyShadesOfBlue Join Date: Apr 2015 Drives: 2015 FR-S Location: Chicago Posts: 1,195 Thanks: 2,086 Thanked 1,425 Times in 730 Posts Mentioned: 13 Post(s) Tagged: 4 Thread(s)	OP, what people are trying to get across is the spoiler will not matter for your daily driving. Also don't worry about what spoiler other people like, it's your car. __________________ Engine/Exhaust: OFT w/ E85 Tune \| FT86SF Catted UEL \| Invidia Q300 Catback Wheels/Tires/Suspension: Avid.1 AV-20 18x8.5 +33 w/ 245/35/18 PSS \| RCE Yellow Springs \| Velox LCAs Cosmetic: Valenti FT86SF Special Edition Tails \| Diode Dynamics Full HID/LEDs \| BRZ Fender Garnishes

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