Thinking about a rear spoiler for my 2013 gts.

[FSTENUF]

First i realy like the look of a acr wing on the rear deck of a viper. With that said i was thinking about key word "thinking" about doing that to my 2013 gts. So before i go "thinking" to much. What do all of you think? I installed a wing on my 2001 rt and it looked awsome. I don't know where to get on for my 2013. Painting and striping not a problem. My biggest issue is all this talk about the rear window and will the deck lid its self hold up to that large of a wing and pressure. Thanks for your reply's

[JonB ~ PartsRack]

While U R thinking, let's define terms Spoiler vs Wing. The "WING" as on a G4 ACR is a far-different project, and ++ downforce, vs. a G5 ''SPOILER'' as OE on the TA.

If you do a WING, you MUST-MUST add some downforce and/or minimize aero lift at the front. A Boeing-747 reaches V-1 rotation at about 145 mph. It weighs 100 times MORE than an ACR! But the ACR, minus its front canards and splttter, will begin to lift its nose at about 130 mph on FLAT surfaces. No undulations-curbs as we saw at VIR 2 weeks ago. Hit those, and you can lift sooner. The car will go straight on high-speed kinks. BE SAFE

It is not a difficult matter to modify Gen 4 (or Gen 2) wing stanchions to fit a G5.....but not an on-the-shelf item, has to be fabricated.

Commercial Message PS:

PartsRack has IN STOCK the Gen 4 ACR wings, ARY wings, and new G4 Splitters, both raw and clear. NEW. Canard-Dive-planes too, for G4, ACR and -X. We also have IN STOCK for immediate shipment the Gen 5 OE aero package: Spoiler, Splitters.... and CF X Brace. All priced very competitively, I hate having $60K tied up in OE aero-parts sitting on the shelf !

Thanks. JonB 360.837.3937 JonB@PartsRack.com "No PMs Please"

[mnc2886]

While U R thinking, let's define terms Spoiler vs Wing. The "WING" as on a G4 ACR is a far-different project, and ++ downforce, vs. a G5 ''SPOILER'' as OE on the TA.

If you do a WING, you MUST-MUST add some downforce and/or minimize aero lift at the front. A Boeing-747 reaches V-1 rotation at about 145 mph. It weighs 100 times MORE than an ACR! But the ACR, minus its front canards and splttter, will begin to lift its nose at about 130 mph on FLAT surfaces. No undulations-curbs as we saw at VIR 2 weeks ago. Hit those, and you can lift sooner. The car will go straight on high-speed kinks. BE SAFE

It is not a difficult matter to modify Gen 4 (or Gen 2) wing stanchions to fit a G5.....but not an on-the-shelf item, has to be fabricated.

Commercial Message PS:

PartsRack has IN STOCK the Gen 4 ACR wings, ARY wings, and new G4 Splitters, both raw and clear. NEW. Canard-Dive-planes too, for G4, ACR and -X. We also have IN STOCK for immediate shipment the Gen 5 OE aero package: Spoiler, Splitters.... and CF X Brace. All priced very competitively, I hate having $60K tied up in OE aero-parts sitting on the shelf !

Thanks. JonB 360.837.3937 JonB@PartsRack.com "No PMs Please"

This is a really good post. I would also add that the canards and the wing are a specific size, angle, and placement specific to aerodynamic tuning done on the Gen IV car. I can assure you the Gen V needs different placement than the Gen IV. May not look like huge differences either, but millimeters count in this discussion. I think the rear wing might be a big difference on a Gen V too because if you look at the GT3-R, it hangs way back there past the rear bumper and a Gen IV is right on top of the deck lid. It is also perfectly straight instead of being curved forward.

http://moparblog.com/wp-content/uploads/2013/06/SRT-Viper-GT3-R-7.jpg

http://oi44.tinypic.com/552flt.jpg

http://3.bp.blogspot.com/_FoXyvaPSnVk/SwzL0ZVvzkI/AAAAAAACRoU/rGrxbNDlBDY/s1600/2010-Dodge-Viper-ACR-1.jpg

One think Jon also did not mention is the need for stiffer springs/shocks once that much extra downforce is added. I believe the ACR aero on an otherwise stock Gen IV would cause the tires to rub at higher speeds as the car is literally being pushed down.

IMO, I wouldn't attempt to add aero from the Gen IV unless it is proven to be a good fit aerodynamically, but as Jon alluded to, most importantly, safe.

[Policy Limits]

Get the TA 2.0 wing!

[canadian viper]

Get the TA 2.0 wing!

bingo

[FSTENUF]

Dose anyone have pick's of the TA 2.0 wing? I was not sure of the down force and after seeing the video of the car lifting on the track it may not be a smart idea on my part. Where I live roads are not viper friendly to say the least. If I go any lower I will need replacement part on hand just to get out of the drive way. Thanks Jon B. You have always given my great advise on my cars.

[Shooter]

Dose anyone have pick's of the TA 2.0 wing? I was not sure of the down force and after seeing the video of the car lifting on the track it may not be a smart idea on my part. Where I live roads are not viper friendly to say the least. If I go any lower I will need replacement part on hand just to get out of the drive way. Thanks Jon B. You have always given my great advise on my cars.

400 lbs @ 150 mph for the "TA 2.0" car. I don't know how much of that is generated by the wing. However, mounting just the wing on the car, without the balancing Aero up front is not a good idea, and pretty unsafe.

[JonB ~ PartsRack]

Thank You!

The primary reason that the GTS-R wing can be farther rearward is this: Its HUGE under-tray rear diffuser! That diffuser eliminates the negative pressure at the rear of the stock Viper. This eliminates LIFT, and therefore enhances the effect of the wing. It keeps the under-car airflow low-and-fast until it gets past the drag-factor for the rear and the wing itself.

Indeed, the TA spoiler may NOT need stronger springs, but the ACR-style wing on a G4 or G5 with stock coilovers may be asking for trouble above 130mph. 1000lb downforce is Like a large moose sitting on your decklid!

HEY! I was at Laguna 11/24/09 when that LSE Pix below was taken of Chris, moments after he set the new track record!


This is a really good post. I would also add that the canards and the wing are a specific size, angle, and placement specific to aerodynamic tuning done on the Gen IV car. I can assure you the Gen V needs different placement than the Gen IV. May not look like huge differences either, but millimeters count in this discussion. I think the rear wing might be a big difference on a Gen V too because if you look at the GT3-R, it hangs way back there past the rear bumper and a Gen IV is right on top of the deck lid. It is also perfectly straight instead of being curved forward.

http://moparblog.com/wp-content/uploads/2013/06/SRT-Viper-GT3-R-7.jpg

http://oi44.tinypic.com/552flt.jpg

http://3.bp.blogspot.com/_FoXyvaPSnVk/SwzL0ZVvzkI/AAAAAAACRoU/rGrxbNDlBDY/s1600/2010-Dodge-Viper-ACR-1.jpg

One think Jon also did not mention is the need for stiffer springs/shocks once that much extra downforce is added. I believe the ACR aero on an otherwise stock Gen IV would cause the tires to rub at higher speeds as the car is literally being pushed down.

IMO, I wouldn't attempt to add aero from the Gen IV unless it is proven to be a good fit aerodynamically, but as Jon alluded to, most importantly, safe.

[XSnake]

The TA 2.0 also has front canards.