tomorrow Posted June 27, 2008 Share Posted June 27, 2008 I am thinking of buying a 2.5i limited. I am wondering if a rear spoiler on the legacy will hurt or help highway fuel efficiency? There are different theories about the spoiler but in practice, does it really help or hurt the gas mileage for legacy? I often drive around 80~85 MPH. Also, does the spoiler look good on the legacy? Thanks! Link to comment Share on other sites More sharing options...
rao Posted June 27, 2008 Share Posted June 27, 2008 It does nothing. It looks awful. Rob IF YOU CARE ABOUT YOUR CAR YOU SHOULD NEVER DRIVE IT Link to comment Share on other sites More sharing options...
pengwin Posted June 27, 2008 Share Posted June 27, 2008 technically speaking it should hurt fuel economy because it pushes the car down increasing friction/resistance but as far as the stock spoiler goes it ugly and useless. Link to comment Share on other sites More sharing options...
ih8vtec13 Posted June 27, 2008 Share Posted June 27, 2008 I dont think it does anything, but I really like the way it looks (BTW rao is a tool for disagreeing with me ) Link to comment Share on other sites More sharing options...
slimjoe Posted June 27, 2008 Share Posted June 27, 2008 It does nothing. It looks awful. +1 I've been trying for two years to do something with the spoiler Link to comment Share on other sites More sharing options...
Scotty Posted June 27, 2008 Share Posted June 27, 2008 Spoilers are design to disrupt the laminar flow which ends up generating more drag. The faster you go, the worst it gets. For road cars, they are generally done for looks. Very few cars NEED spoilers. Those that need them are a poor aerodynamic design and have a tendency to oversteer at high speeds like the Audi TT. Link to comment Share on other sites More sharing options...
rtbrjason Posted June 27, 2008 Share Posted June 27, 2008 Not many sedans look good with spoilers imo. It definitely doesn't help anything. Not sure how much it really hurts other than the slight bit of extra weight. Link to comment Share on other sites More sharing options...
ehsnils Posted June 27, 2008 Share Posted June 27, 2008 The factory mounted ones are there more for look than function, but anything that pokes into the wind will increase the drag. Even open windows increases drag. Link to comment Share on other sites More sharing options...
Xclomo Posted June 27, 2008 Share Posted June 27, 2008 I like my spoiler. Even if it is useless. Link to comment Share on other sites More sharing options...
Legend Posted June 27, 2008 Share Posted June 27, 2008 It does nothing. It looks awful. I agree. I've owned 30 cars and never had a spoiler. As far as tack-ons go, the only thing worse are louvers. I bought a used '87 RX-7 Turbo around '93 and I had to rip those louvers off as soon as I got home. My '05 LGT My '07 Supercharged Shelby Link to comment Share on other sites More sharing options...
AKLGT Posted June 27, 2008 Share Posted June 27, 2008 go spoilerless and get a lip spoiler. looks nicer and you can take it off later and not have holes in your trunk. Wiggle wiggle wiggle wiggle wiggle yeah!!! Link to comment Share on other sites More sharing options...
lousypirate Posted June 27, 2008 Share Posted June 27, 2008 +1 on the lip spoiler, i like it and hope to get one someday Link to comment Share on other sites More sharing options...
BoozeRS05 Posted June 27, 2008 Share Posted June 27, 2008 I like my spoiler, but now I want a front lip to offset it.. EB's Subaru journal - 2005 LegacyGT Wagon & 2014 Forester FB25 (2008 specB - RIP) IG@legacygtliving Link to comment Share on other sites More sharing options...
mcumeda Posted June 27, 2008 Share Posted June 27, 2008 Spoilers are design to disrupt the laminar flow which ends up generating more drag. The faster you go, the worst it gets. For road cars, they are generally done for looks. Very few cars NEED spoilers. Those that need them are a poor aerodynamic design and have a tendency to oversteer at high speeds like the Audi TT. I am not sure the ones that need them are due to poor aerodynamic design. I thought the ones that needed them are TOO aerodynamic creating lift which is why the spoiler was needed. I guess you could argue that a car should be designed to create downforce, but I don't believe that is necessary at the speeds that most people drive. Link to comment Share on other sites More sharing options...
cmc032 Posted June 27, 2008 Share Posted June 27, 2008 i like mine even if it is just for looks Link to comment Share on other sites More sharing options...
camber Posted June 27, 2008 Share Posted June 27, 2008 Subaru claims that the STI spoiler lowers cd. On the G35, the spoiler reduced cd as well. Link to comment Share on other sites More sharing options...
bsdzine Posted June 27, 2008 Share Posted June 27, 2008 Straight from SOA... The spoiler on the Spec-B provides constant downforce in city driving. This is due to the addition of the aluminum Ghengis Arm used in production of the Spec-B. At highway speeds, the spec-b spoiler will slightly grow into a more aerodynamic shape provided the Amorphicity Plastic used has not been contaminated. In turn, the driver can expect to see an addition .0367 lbs of downforce per each mile per hour and a +7 boost of power with additional mana capabilities. Once the car reaches maximum velocity and the flux capicator begins to develop HPV, super-boost is achieved, allowing the Spec-B to take flight and look awesome. The addition of a spoiler to a regular GT & 2.5i will provide an additional boost of power in the low rpm ranges due to hyper-induction from the vortex winds created by sheer awesome-ness, which will allow the driver to feel the power between the flange-nut-belt-drive (new since 05.) and the bi-sexual lug nut rotation suction cup. ..man i'm bored at work. brian Link to comment Share on other sites More sharing options...
BoozeRS05 Posted June 27, 2008 Share Posted June 27, 2008 So if I add a spoiler, I'll be able to use common household garbage as fuel too..? EB's Subaru journal - 2005 LegacyGT Wagon & 2014 Forester FB25 (2008 specB - RIP) IG@legacygtliving Link to comment Share on other sites More sharing options...
Pawlwawl06 Posted June 27, 2008 Share Posted June 27, 2008 I was convinced I wanted one when I found out it had a brake light. I love the spoiler to death, I bought an aftermarket factory spoiler off of ebay. The car looked so bland without it. However, I hope you don't plan on using a rear bike rack with your car. The spoiler gets to be such a pain when I am trying to haul bikes around. I already have a few chips on the spoiler from where it rubbed against the bike rack. Probably have to have it touched-up somewhere, then buy some padding for the rack. Just my .02 cents. Link to comment Share on other sites More sharing options...
ShadowImg Posted June 27, 2008 Share Posted June 27, 2008 If anyone would like my spoiler, I have an OBP trunk and would be more than happy to swap Link to comment Share on other sites More sharing options...
Montana Posted June 28, 2008 Share Posted June 28, 2008 Spoilers are useful for re-entering the atmosphere, I believe. So, if you intend to launch your Subie, go for a spoiler. Link to comment Share on other sites More sharing options...
NSFW Posted June 28, 2008 Share Posted June 28, 2008 I am thinking of buying a 2.5i limited. I am wondering if a rear spoiler on the legacy will hurt or help highway fuel efficiency? There are different theories about the spoiler but in practice, does it really help or hurt the gas mileage for legacy? I often drive around 80~85 MPH. My intuition says that the spoiler's effect on fuel economy will be so close to zero that it can't be measured. But you'd really have to try it to actually know. On the other hand, I am very confident that slowing from 80ish to 50ish will save a measurable amount of fuel. I'd bet money on it. I'd bet a couple thousand if I was confident that the experiment would be done properly. Link to comment Share on other sites More sharing options...
DrCloud Posted June 28, 2008 Share Posted June 28, 2008 SPOILER??? Dang! I thought that thing back there was just the handle to open the trunk! Geez, if my car has a real spoiler, then I can go fast! Too cool! HPH Link to comment Share on other sites More sharing options...
sschmelcke Posted June 28, 2008 Share Posted June 28, 2008 i guess i am the only one who read this cause i am cracking up. i thought it was serious till i read flux capacitor Straight from SOA... ..man i'm bored at work. Link to comment Share on other sites More sharing options...
sschmelcke Posted June 28, 2008 Share Posted June 28, 2008 how can i achieve super boost with my wagon??? Link to comment Share on other sites More sharing options...
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