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BBRTuning Time Attack/NASA TT 99 GSX

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Glad to see an update! I've been wondering what you were up to. Looking forward to some numbers!!

That looks great! I really like the wing mounts. Do post up some dyno vids after your done.

Also it was really nice to meet you when you where up here in Idaho. Next time your up this we feel free to stop by again.

Kevin

Thanks guys! I'll try to get some better pictures of the wing mounts with the trunk open. In the pictures below, you can see the vertical support struts that are located by the 2 bars that kick back from the shock tower bar. There's also a diagonal bar from the driver-side shock tower to the passenger-side wing support strut that's on heim joints which prevents lateral movement and to allow for fine adjustments for fitment and to add some preload. The driver-side support strut is kept from laternal movement by the wing itself. You can literally tow the car from the rear wing supports!

The cage ended up being finished Thursday night, with Mitsu Owner's Day being early Saturday. I only had a few hours Friday morning to quickly look the car over and made sure she ran before loading her onto the trailer to go to FSR for tuning. On the dyno, everything was looking good at lower boost levels (405whp at 19/20 psi in 102F weather just after a rain) but we ran into problems when increasing the boost much beyond that. The car had what could only be described as a significant boost leak, as well as a head-to-manifold exhaust leak that would have taken too long to fix. I suppose I deserve that for not running the engine hard in almost a year and not spending any time going over the engine/turbo system..

With a decent base tune and not enough time to get her fixed for further tuning in time for MOD, we unfortunately had to call an end to the session, but the car/engine is just fine so it could have been worse. The guys at FSR Motorsports were extremely helpful and generous, inviting me back to finish the tune once I get the FP3 cams in and the little issues fixed.

Despite not being ready for the dyno, I still brought the car to MOD to generate some interest in the car etc and had a lot of positive feedback, despite the car being nowhere near finished. Some pics (last pic courtesy of Tonus2012):

img4148edit.jpg


img4149edit.jpg


img4172vr.jpg


Beau
 
I thought I go ahead and bump this instead of asking you in PM because this car deserves more people's attention.

Did you ever get around to taking photos of how the wing mounts to the car? I am interested in prety much all aspects of it: from the how its tied into the cage, to how it goes through the trunk deck, to even.. did you fabricate the mounts on the wing, or did they come included with the purchase of your wing?

Very interested in the details if you are open to sharing :)
 
I thought I go ahead and bump this instead of asking you in PM because this car deserves more people's attention.

Did you ever get around to taking photos of how the wing mounts to the car? I am interested in prety much all aspects of it: from the how its tied into the cage, to how it goes through the trunk deck, to even.. did you fabricate the mounts on the wing, or did they come included with the purchase of your wing?

Very interested in the details if you are open to sharing :)

Thanks, no unfortunately I haven't taken better pics of it yet. Things have been moving a bit slowly on the car lately mostly due to financial reasons, but the car really is close to hitting the track! My friend (roostinds) and I pulled the entire rear subframe out of the car, pressed in Adam Porto's solid rear subframe and diff mounts in, and I had the full set of Prothane inserts pushed into the rear suspension. I chose urethane for time and cost reasons, I may go full spherical in the future but for now I'll be focusing more time/investment into the front suspension components.

We also got an Evo rear diff and restacked the stock clutch plates for more locking power. We're hoping to have the subframe back in the car next weekend. Once that's in, and the turbo assembly is back in the car, she should be ready to fire up and will be back on the dyno for tuning! After that, it's track time. Pictures will come as soon as she's out of the garage :rocks:

Pictures will demonstrate the wing mounting better, but we designed plates which sit directly under the trunk lid which are made to accept the original APR wing supports. I figured this would make it easy to adjust the height of the wing element, as it should accept any of the off-the-shelf APR mounts. In the end, though, I might end up making my own supports/uprights and possibly integrate them into the structure itself.

There are 2 vertical support struts that come from the frame rails in the trunk, straight up to the mounting plates, 2 bars that come straight back from the rear shock towers that attach to the vertical struts, and then one diagonal bar (adjustable with rod ends) that triangulates the whole assembly so it doesn't try to "walk" laterally. The small adjustability accounts for any variations in the mounting of a few millimetres either direction. You can see some of this in a couple of the pictures earlier in the thread.

For now, we cut 2 narrow slits in the trunklid so the APR wing supports just squeeze through. We weren't sure how clearance would be as far as opening the trunk, and it turns out that we'll have to slot the holes larger to facilitate opening the trunklid, not that I'll be needing to do that much anyway though. Eventually, opening the trunklid will consist of undoing 4 bolts for the wing element (may change to pins if needed to make this quicker) and then sliding the trunklid over the supports.

Beau
 
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