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Discussion Starter #1,001
Re: BlueScooby's 06 STI - Diffuser/Underbody Completed!

:eek::eek: How much does it weigh?
I just realized you quoted an earlier post... :busted:

I'm not sure how much all the underbody weighs exactly. But based on using probably 2/3 - 3/4 of two 4'x8' sheets of 16 gauge aluminum, I estimate the weight at 30lbs roughly. But thats for all the panels downstream of the beat rush undertray. If you're asking about just the diffuser, its probably around 10lbs.
 

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Re: BlueScooby's 06 STI - Diffuser/Underbody Completed!

I just realized you quoted an earlier post... :busted:

I'm not sure how much all the underbody weighs exactly. But based on using probably 2/3 - 3/4 of two 4'x8' sheets of 16 gauge aluminum, I estimate the weight at 30lbs roughly. But thats for all the panels downstream of the beat rush undertray. If you're asking about just the diffuser, its probably around 10lbs.
The diffuser weight was the number and thanks it looks great.
 

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Re: BlueScooby's 06 STI - Looking around at rear wing options

WRC style wing to match the overhang as well as flare/wide body?

Sent from my VTR-L09 using Tapatalk
Since this comment, I have been thinking about the OEM wing in the back and what kind of "options" I have back there. I'm not interested in going full on race wing, so I'd like to to be relatively stock-ish looking.

The first obvious option, is the beautiful WRC wing that was on the Hawkeye and Blob eye with all the strakes in the middle. However after looking around, that wing is HIGH downforce wing, which is optimized to produce lots of downforce at around 60mph (closer to rally speeds which are typically much slower than road course speeds). According to to one of the subaru drivers (maybe Ken Block?) this wing produced too much downforce at highway and up speeds. :confused: But after looking closely at the profile of the "real" WRC wing, it is actually a VERY aggressive wing profile. So this seems a reasonable conclusion.


Next I thought about the previous generation of that wing back on the bugeye that didnt have the strakes but still protruded further back about 6 inches like the one above. The strakes were due to the rally car going sideways a lot anyway, so loosing them isn't bad for a road course. But then I realized both of these wings mean sacrificing my 3rd brake light, which is not something I want to do on my daily.


So I'm mostly left with the likes of the Syms wing which actually attaches to the OEM wing base but still has a slightly more raked, and slightly more aggressive wing profile to it.




This would improve the wing function, have it tilted further back to lessen the difference to the diffuser overhang, retain the OEM 3rd brake light, and still look fairly stock-ish.

So I think thats the winnerwinnerchickendinner. But I can only find one or two places even selling them and the FRP replica is still like $800:tdown: Which makes all of this sort of a moot conversation since I don't plan to spend that much on a wing anyway... Unless I can spot a deal on a used one somewhere :devil:

What do you think? Any other good ones I should consider, or am I just wasting my time entirely?
 

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Re: BlueScooby's 06 STI - Looking around at rear wing options

Oh lord what have I done? :eek:

I was kinda half kidding with that but the reason I mentioned the WRC style wing was because of the extra overhang it provides. If it doesn't stick out past the bumper or at the same distance of the bumper I don't really see much point in getting another wing as the overhang was the whole idea.

And yeah the WRC wings produce absurd amounts of downforce. I think it was Petter Solberg (don't quote me on that lol) that commented once that when he lost it from an off during a stage that the back end lost almost all of it's grip and they almost nose dived off a jump because the wing wasn't there to keep the back end down when the car was in the air to counteract the front biased weight of the car. But it gets it's downforce with a huge drag penalty so it will have a massive affect on your gas mileage. Which would counter act one of the benefits of your flat under body.

If you have the money they are an awesome wing for time attack or road race cars that run on relatively small tracks where your corner speed is everything.
 

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Discussion Starter #1,005
BlueScooby's 06 STI - Looking around at rear wing options

Yeah, the previous WRC wing( no strakes design), which has much less downforce, would be a better fit for me for sure. I just dont know if I could find one, or how hard it would be to mount the 3rd light on it... But that one would definitely fit my use the best.
 

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Re: BlueScooby's 06 STI - Looking around at rear wing options

WRC Spares usually has a few of the S9-S12 (one with strakes) version in stock, but not sure about the S7/S8 (strakeless). But I'm sure they would be able to acquire one.

Body Panels WRC - Subaru WRC Spares Ltd

As for the third break light I'm pretty sure you can still see the one in the rear window just fine with the S7/S8 wing so I don't think you'll really need to put one in the wing
 

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Discussion Starter #1,007
Re: BlueScooby's 06 STI - Looking around at rear wing options

Yeah Ive briefly perused that site before. Most of that is out of my price range... lol. But if they did have an S7/8 wing that would be cool.

I dont have the brake light in the cabin, which is why i was thinking of how hard it would be to dremel a hole to mount one...
 

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Re: BlueScooby's 06 STI - Looking around at rear wing options

Ahh ok that makes sense. Probably wouldn't be hard to get a small LED one off ebay or a place like VLEDs or something and stick it in there. Doesn't even have to be that big, just bright enough to be visible as a brake light. Or maybe put one in the rear window? As long as it's visible it should count.
 

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Re: BlueScooby's 06 STI - Looking around at rear wing options

I knew I had seen something somewhere at some point as an option but couldn't remember where.....just happened to come across it again.

https://www.rpgcarbon.com/product-page/wrc-s7-rally-wing-spoiler

Definitely in a reasonable price range and it looks like you shouldn't have an issue mounting a third brake light in there.
 

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Discussion Starter #1,010 (Edited)
Re: BlueScooby's 06 STI - Looking around at rear wing options

I knew I had seen something somewhere at some point as an option but couldn't remember where.....just happened to come across it again.

RPG Racing Product Group | RPG Carbon Fiberglass

Definitely in a reasonable price range and it looks like you shouldn't have an issue mounting a third brake light in there.
Thanks for the link! They are actually 1 of like 3 places I found this weekend where I could buy one (including japanparts). RPG and Rallytech (HERE) are the only two places I found selling "new" replicas. At the moment I'm more inclined towards the Rallytech one, it just seems better... Or at least they have better pictures. Rallytech also specifies that there are threaded inserts into the wing for OEM mounting, but RPG doesnt. In all honesty they are probably the same though... Out of curiosity does the "OEM" mounting change at all from 02-07? With my luck the holes are in the wrong places.:lol:

Japanparts is selling what appears to actually be a chargespeed (wrc replica) wing (HERE). Which I could buy new for extra monies, but screw that. The one thing I do like about the chargespeed wing is I can get the used one at around the same price but the actual airfoil is carbon fiber (so they say). I imagine a carbon airfoil would be more rigid than the fiberglass ones (like our OEM wing which vibrates on the highway).

I just wish there was more detailed pictures/better information on the airfoil shaping of each of these. The last thing I want is to buy one that doesn't work because the airfoil is shaped incorrectly. :tdown: It would also be nice to know if these FRP replicas vibrate like the OEM wing, although I'm not sure if there is much I could do with that information...
 

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Re: BlueScooby's 06 STI - Looking around at rear wing options

As far as I'm aware all the STI wings on the GDs have the same mounting holes, so I don't think it would matter. And yes I would imagine the FRP wing to vibrate, but that's not really an actual issue. But yeah that rallytech one does look batter than the RPG one and seams to have an actual aerofoil shape to the element, but who knows :lol:
 

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Re: BlueScooby's 06 STI - Looking around at rear wing options

I just saw that you're trying to decide what to do about aero. Maybe this will help... A friend of mine built a very extreme STI Sumaire STi - Home | Facebook. I may have mentioned it before. Anyway this car was originally equipped with an actual carbon WRC wing (at great cost). After several seasons of trying to make it work on his car he removed it for custom aero designed for his purposes. The wing was really heavy (to spite being carbon) and not really tunable. It just didn't work.

Enter Zebulon MSC Ltd. - Home | Facebook. I've known these brothers a long time. They used to autocross. They started doing custom aero several years ago and have become very successful at it. You may not be ready for it now, but as your car gets faster you may want to talk to these guys or guys like them at some point. It's eventually going to come to a form vs function thing like it did for my friend Devin. Better not to spend the same money twice. my 2¢.
 

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Re: BlueScooby's 06 STI - Looking around at rear wing options

Thanks for the heads up! I follow Sumaire on Facebook but I haven't heard of the Zebulon MSC guys yet.

I definitely don't want to spend a bunch of money twice. :tup: I think the WRC S7/8 (no strakes) wing is probably the perfect fit for me right now. It should be a mild bump in downforce as well as retaining the stock look. If I ever go full race wing I would probably just sell the WRC one.
 

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Re: BlueScooby's 06 STI - Looking around at rear wing options

as for the third brake light, you can pick an oem one up cheap for the rear window. You should already have the wire and plug ready and you just have to cut the parcel tray. I went wingless in the past and did it.

As for the wing, I wonder the functionality of something like you're considering vs. a s204 or spec C wing? I'm personally not a fan of the stock / wrc spoilers but then, you're obviously not a fan of my Kognition :lol:

I think the prettiest wing ever was the prova super taikyu but god only knows where one of those may be.
 

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Re: BlueScooby's 06 STI - Looking around at rear wing options

I just saw that you're trying to decide what to do about aero. Maybe this will help... A friend of mine built a very extreme STI Sumaire STi - Home | Facebook. I may have mentioned it before. Anyway this car was originally equipped with an actual carbon WRC wing (at great cost). After several seasons of trying to make it work on his car he removed it for custom aero designed for his purposes. The wing was really heavy (to spite being carbon) and not really tunable. It just didn't work.

Enter Zebulon MSC Ltd. - Home | Facebook. I've known these brothers a long time. They used to autocross. They started doing custom aero several years ago and have become very successful at it. You may not be ready for it now, but as your car gets faster you may want to talk to these guys or guys like them at some point. It's eventually going to come to a form vs function thing like it did for my friend Devin. Better not to spend the same money twice. my 2¢.
Ryan let me know last week that my wing is done and he was working on the uprights. He's also building a splitter for me as well. I hadn't heard much from Tyler doing much with the company other than the restaurant and the Porsche team.

I can say that if you go with Zebulon, which I recommend, you'll want to contact him sooner, rather than later. Ryan is way behind. He's a friend I've known since the college days and it's still been awhile since I asked him to build my aero. He's really going to want to do the wing and splitter to balance the car out.

To give you an idea of the strength of what Zebulon builds; it's not your typical APR stuff:



 

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Discussion Starter #1,016
Re: BlueScooby's 06 STI - Looking around at rear wing options

Oh wow, thats some serious stuff there.

I may need to talk with them just to see what they recommend at this point...

Thanks for the heads up guys!
 

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Discussion Starter #1,017
Re: BlueScooby's 06 STI - Looking around at rear wing options

as for the third brake light, you can pick an oem one up cheap for the rear window. You should already have the wire and plug ready and you just have to cut the parcel tray. I went wingless in the past and did it.

As for the wing, I wonder the functionality of something like you're considering vs. a s204 or spec C wing? I'm personally not a fan of the stock / wrc spoilers but then, you're obviously not a fan of my Kognition :lol:

I think the prettiest wing ever was the prova super taikyu but god only knows where one of those may be.
I like the look of GT wings, I just think they seem a bit ricey on the street... Especially for someone like me who daily drives 95% of the time :lol:

I went ahead and emailed Ryan at Zebulon MSC to see what he says:cool:
 

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Discussion Starter #1,020
Re: BlueScooby's 06 STI - Looking around at rear wing options

So I talked with Ryan at Zebulon a bit through email and I think I'm going to have to hold off on the spiltter/rear wing thing for now. They really do need to be done at the same time, and I'm just not ready to put on a GT wing...

But he also gave me a couple pointers on the underbody that I'm going to see if I can work with. He reminded me that the skirting is illegal for any sanctioned race (which I already knew) but also that the skirts sort of open/close off the underbody at various spots which is probably hurting me a little. Also that with the rear diffuser sticking out that far, its really limiting (preventing) the rear wing from aiding in drawing air out from under the car...

SO, it sounds like I'm going to be revising it a bit. In general i think I'll feel much better about it after its no longer sticking out so far, but that also means I probably won't be able to deflect the exhaust up to prevent interference anymore...

I may still look into some of the rear wing options from above (possibly) since they shouldn't be a dramatic change in the airflow enough to change the car's balance.
 
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