Undercarriage aero panels: Not on US BRZ?

[@Art_Mighty]

I was looking around for something else and found these:

Part No.
NO1 SU003-01050 fuel tank protector
NO2 SU003-01051 fuel tank protector
RR R SU003-01380 Undercover
RR L SU003-01381 Undercover

omitted bolts, nuts, clips Because of the large number. A total of about 17 000 yen price.

I think these are all of the parts to the panels they don't install on our USDM cars...

[RossGA]

Originally Posted by PMok

does anyone else think this would work? in the same vein as the coroplast...

cut some flat cardboard to fit the areas you want, bolt or clip them on. Then hit that up with some black Krylon or Rhino paint or whatever. super cheap, gets the job done, easy to replace?

No, the cardboard would eventually get wet and start falling apart. And then become a fire hazard if any got hung up on the exhaust.

Even if you only drove it on dry days, I don't think cardboard would hold up too well just against the constant beating of the turbulent air blowing under the car at freeway speeds.

It really, really needs to be the factory panels, or custom pieces made out of a low flammability plastic or aluminum.

[ayau]

Originally Posted by @Art_Mighty

I was looking around for something else and found these:

Part No.
NO1 SU003-01050 fuel tank protector
NO2 SU003-01051 fuel tank protector
RR R SU003-01380 Undercover
RR L SU003-01381 Undercover

omitted bolts, nuts, clips Because of the large number. A total of about 17 000 yen price.

I think these are all of the parts to the panels they don't install on our USDM cars...

awesome find. now if someone can set up a group buy for these. even if there was no aero advantage, it'd be nice to cover the underbody to prevent potential rusting.

[@Art_Mighty]

Originally Posted by ayau

awesome find. now if someone can set up a group buy for these. even if there was no aero advantage, it'd be nice to cover the underbody to prevent potential rusting.

I would be intrested in group buy

[@Art_Mighty]

[zkubidu]

I'd be in for a group buy.

[Allch Chcar]

How did I miss this most interesting thread? A couple of these have come up lately that I missed.

Originally Posted by switchlanez

Here are the coefficients of drag based on the new BRZ digital brochure and what Toyota has published.

No Spoiler/no underbody panels: 0.29cd
Yes spoiler/no underbody panels: 0.28cd
Yes spoiler/yes underbody panels: 0.27cd <-- I'm deducing

Not necessarily dead weight if there's benefit to the cost. But I might lower my car and it'd be painful having hundreds of dollars of underbody panels get scraped/dented up by unforgiving dips/bumps in the road.

Considering aerodynamics is all about shaving that 1 point(0.001) and that's almost 20 points from .29->.27, I'd say that's a little optimistic.

0.01 is a huge improvement from a manufacturing standpoint. I recall an article that FORD valued a 1% improvement in fuel economy at close to $400 per vehicle. I don't know how much manufacturers value that 1% now but it's probably far greater than that.

Originally Posted by RossGA

No, the cardboard would eventually get wet and start falling apart. And then become a fire hazard if any got hung up on the exhaust.

Even if you only drove it on dry days, I don't think cardboard would hold up too well just against the constant beating of the turbulent air blowing under the car at freeway speeds.

It really, really needs to be the factory panels, or custom pieces made out of a low flammability plastic or aluminum.

Chloroplast is good too, so long as it's not exposed to very high temperatures. Another thing to consider is that underbody paneling will probably be damaged/abused in the wild west that is American roads. Paint it black and no one will even notice it. If it's cheap then you won't miss it when it inevitably rips apart on a squirrel or a rock.

[ayau]

Originally Posted by @Art_Mighty

i messaged carson toyota (vendor) to see how much he can get it for. hopefully it won't be too expensive.

[ayau]

Originally Posted by Allch Chcar

How did I miss this most interesting thread? A couple of these have come up lately that I missed.



Considering aerodynamics is all about shaving that 1 point(0.001) and that's almost 20 points from .29->.27, I'd say that's a little optimistic.

0.01 is a huge improvement from a manufacturing standpoint. I recall an article that FORD valued a 1% improvement in fuel economy at close to $400 per vehicle. I don't know how much manufacturers value that 1% now but it's probably far greater than that.



Chloroplast is good too, so long as it's not exposed to very high temperatures. Another thing to consider is that underbody paneling will probably be damaged/abused in the wild west that is American roads. Paint it black and no one will even notice it. If it's cheap then you won't miss it when it inevitably rips apart on a squirrel or a rock.

here are the numbers to back it up.

spoiler + underbody = 0.27cd. the video mentions 0.27cd.

http://www.ft86club.com/forums/showthread.php?p=190223


spoiler only = 0.28cd

http://www.cars.net/research/Subaru/...ed-Manual-RWD/

no spoiler, no underbody = 0.29cd

http://www.cars.net/research/Subaru/...Automatic-RWD/

[zkubidu]

Would definitely be in for these. Anyone selling these or making similar/equivalent pieces yet?

[RAWR BRZ]

Im in for group buy if prices are good... how much is it anyways?

[chanomatik]

Bump for Group Buy interest.

[chanomatik]

NOW AVAILABLE ON JAPANPARTS.COM



A set of 56410E + 56410F + M000344 x6 + W140065 x16 + 42045D*A + 42045E + 0235S x4 + W140007 x4.

196.21 USD

[zkubidu]

^ plus ~$100 in shipping. Nice find.