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YOUR RESEARCHDuck Tail Spoiler for 996
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Replace after tracking
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Suggestion
Better Oil and constant oil changes after tracking.
Leading evidence: 'Replace after tracking' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace after tracking' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Suggestion
From what I�ve read, the stock spoiler is slightly more effective at reducing lift than a ducktail, so I think you�d be ok without changing the front.
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Suggestion · Original poster
I change the oil every 3k miles and I had it tested.
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Suggestion
The vast majority of Porsche owners don't track there car so any run of the mill bolt on may be just fine.
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Hi,
I have a 996 C4 and I am thinking about purchasing one of these (
https://www.ebay.com/itm/324645816792?ul_noapp=true
) but I can't find any data on how this may impact the aerodynamics of the car.
Anyone has fitted one to their car? How is the car behaving?
Thank you
Most instances aftermarket wings which have not been fully tested and are designed more for aesthetics. These do very little to reduce lift, increase downforce and would simply just add drag and "enhance" the vehicle look.
Ultimately unless on you're on a track or at high speed you may see very little change in terms of behavior. There may not be enough speed to tell if the wing is functional or turbulence it crates is a problem.
Dr. Robert White's article in the Nov '77 issue P mag.
http://gettydesign.com/996tailbases/...-and-spoilers/
@997ajk
Thank you very much for the input. Yes, that was my concern: the fact that they are more designed for looks than efficiency. I asked the seller for some data from testing but he didn't have anything which leads me to believe that no testing was done.
But having said that...
2011 Sport Classic 911 had a ducktail from factory, for most part 996 and 997 body, suspension pieces have only some minor front and rear end differences.
Shape/roof design is the same, so if it's a copy it maybe functional and provide benefits of factory designed piece.
Link for SC design
https://www.9xxteile.com/en/fibreglass-and-carbon
https://drivemag.com/news/an-80-mile...is-up-for-sale
Check out the thread "Chunks Slow Build". He ordered a carbon fiber RPM Technik (UK) Duck Tail. Light and well designed by RPM. 2 years ago when I talked to them, they had not yet tested it for aero but we're planning on it. Sibley from 911 magazine did a YouTube video on it as he was reconditioning his Gen 1 996.
There's a local company here in San Diego that supposedly is the manufacturer of the ducktail. You could try contacting them even though I also doubt there was any testing done.
http://betterbodiesusa.com/product/2...-gt3-rs-grills
I ordered a vented Evo model from RPM Technik. As far as performance is concerned, they race prep cars and some CSRs have been tracked. This is what I�m hoping to emulate.
Not to mention it actually looks good and fits with the lines of the car, plus provides substantial weight savings versus stock lid and fiberglass alternatives.
Hi, thank you all for the links.
I think I need to provide a bit more info. I intend to track the car for mild racing: driver ed and autoX. Last time I was on the track we were doing close to 120 mph on the straight so I am looking for a ducktail (not a wing) that is efficient at fairly high speeds, not just decorative. Since my car is also for road use it needs to pass requirements for PA inspection. The RPM Technik being ridiculously expensive (add cost of painting) I am looking at the Better Bodies option but it looks like it doesn't have the third brake light insert and this is likely to fail inspection. Or it is not designed to meet the specs of the original ductail (being lower to allow view of the third brake light) and then is probably inefficient. Your thoughts?
if you are going to track the car, only put something on your car that has been tested and built for the track. We all want to save money but dont do it unless it's proven. The vast majority of Porsche owners don't track there car so any run of the mill bolt on may be just fine. But tracking it is different.
Don't forget, you also need to balance out the front end depending on what you do with the back end.
I have been tracking my 02 996 since 2004. I have spent my money on other things than aero to go faster and prevent my engine from blowing. Depending on your budget, you gotta ask your self a couple of simple questions.
1. Do I want to track the car and properly set it up for safety, durability and speed, or
2. Do you want it to look pretty.
If you have the money to do both, great. If not, safety and durability first.
Bottom line: priorities matter.
That�s an interesting thought and didn�t cross my mind because we don�t have inspections in FL. The 3rd brake light is no longer an option on the RPM unit, if you get the BB model... you could probably pay to get a regular LED strip to be modded in.
Yes. You are right. No questions: my priority is safety and reliability. My car is not a garage queen but I maintain it the best I can and fix everything than isn't working as it should even if it's not an inspection requirement. Good advice. I will save my $ for a set of Konis. The PO lowered the car on Eibach sport springs but kept the stock suspensions and at 96000 miles it's time to upgrade.
Thank you everyone for the good advice and help!
Basic To Dos
1. Oil Test For Bore Scoring
2. Upgrade your AOS.
3. Deep Sump Kit
4. Better Oil and constant oil changes after tracking. None of this 15k bs.
5. New Ignition Coils & Spark Plugs
6. New Fuel Injectors
Good advice again.
I change the oil every 3k miles and I had it tested. No signs of metal particulates so far.
Dumb question maybe but what is the AOS?
Air Oil Separator. Once it fails you risk the chance of hydro locking your engine. Best option is the Ultimate AOS system that fixes all the issues the OEM one will eventually have.
Air Oil Separator. Important part that you do not want to fail on the track or around town. Search in RL under UAOS and AOS, and you will find plenty of info. Porschetek3 who is a Rennlist member developed the UAOS which is a much better solution than the stock Aos. Your other option is a Porsche motorsports aos.
Don't attempt to track your car until you have gone thru the list with your Porsche shop and everything checks out. You don't want a 25k engine rebuild bill.
Oh boy, I went from looking into buying a cheap duck tail to an entire laundry list of items to add to my engine for tracking. I better start saving quick.
Thank you all for the info.
Yeah, RL is littered with guys that just bought a 996 and don't do the necessary basics to make sure it will function properly going forward. Instead they buy radios, aero, wheels, etc. And then get pissed when it stops running. Kinda silly isn't it.
The rear spoiler deploys on a stock car at high speed without any additional front aero. From what I�ve read, the stock spoiler is slightly more effective at reducing lift than a ducktail, so I think you�d be ok without changing the front. Maybe I�m missing something.
I am no expert in racing or tracking but when we went with the PCA on the track (NJ Motorsport Park) the car behaved extremely well and although we were not racing, we were going very fast. I didn't know my car could handle that well. Driving your car on the track is totally intoxicating. So much more fun than driving fast on the road. No fear of getting a ticket, no potholes, very low risk of hurting someone or an animal and if you lose control you have a very good chance of not damaging your vehicle.
So I think I'm going to keep it stock as far as the exterior is concerned but I will certainly follow the suggestions in terms of improving the engine components and also upgrade the suspension.
Smart. Tracking the car is an incredible experience. Sounds like you are hooked. Enjoy it. Do the basic things to keep the engine safe first, then plan projects to enhance year by year. I've been tracking mine since 2004 and still haven't figured out what I really want yet for aero. Spent the money on the engine, suspension, brakes, safety equipment and service.
Pay attention to Zbomb's posts. He has built his car over time doing the right things first. You will have a blast with a great car.
