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Front Chin spoiler makes a huge difference.
I want to confirm the report about the front black rubber chin spoiler. It does make a difference. A big difference. I just had one installed on my CE Targa. When the previous owner bought the car new, he had the turbo tail installed before it left the dealer but not the front chin spoiler. This is a big no, no. I have read this in my 911 books and Porsche even recommends both spoilers or none at all. I noticed a difference even at 65mph. The car was more planted and was instantly noticeable. At 130mph, it was rock solid. It is a cold and windy day here in central Pa. and I drove against and with the wind. What a difference. I had one on my last 85 Carrera and never knew it did so much.
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11-11-2011, 12:33 PM
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Registered
Join Date: Nov 2005
Location: CA
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what difference does it make? It slow you down? Just k/d
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Fat butt 911, 1987 |
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11-11-2011, 12:46 PM
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Member 911 Anonymous
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Very cool, so what is your ride height settings? Stock or lowered/degree of rake?
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'85 Carrera Targa Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace PCA/POC |
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11-11-2011, 12:50 PM
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Registered
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11-11-2011, 12:56 PM
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Driver
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1987 Venetian Blue (looks like grey) 930 Coupe 1990 Black 964 C2 Targa |
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11-11-2011, 01:01 PM
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Member 911 Anonymous
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With tail a chin is needed, without a tail no chin is needed. Someone posted the areo-dynamic chart.
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'85 Carrera Targa Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace PCA/POC |
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11-11-2011, 01:02 PM
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Fleabit peanut monkey
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Both spoilers are needed.
Front only keeps nose planted while tail gets sucked up. Rear only plants rear and nose lifts. By planted, I mean not as much lift. These spoilers do not add down-force, they lessen lift. It is a nice difference going from neither to both but going from one to both has to be more dramatic of a change if you drive fast. Last edited by Bob Kontak; 11-11-2011 at 01:10 PM.. |
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11-11-2011, 01:06 PM
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Fleabit peanut monkey
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11-11-2011, 01:13 PM
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Member 911 Anonymous
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'85 Carrera Targa Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace PCA/POC |
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11-11-2011, 01:27 PM
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Registered
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I had a duck tail and no chin spoiler for a little while. The chin spoiler made a huge difference. I lowered my car from rally height to Euro height. All of that made a dramatic difference. Just have to watch out when you pull up to curbs, can't bounce the wheels off of them without destroying the chin spoiler. But it is a very worth while addition.
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76 911S Targa An ex F1 driver, and Porsche fanatic (my stepfather) once told me that if you listen very carefully on a quiet night you can actually HEAR Porsches rusting in the garage! |
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11-11-2011, 01:47 PM
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Fleabit peanut monkey
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My speedo said 135 in my SC and I thought I was almost at the 139 max. GPS said 123. heh heh. About 10 years ago, my 400 lb. workmate rode with me on the Houston Beltway. I was wondering why the thing was so darned solid when I ran it up to 110. I bought both spoilers right after figuring it out. |
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11-11-2011, 02:17 PM
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My book says no. Both spoilers are to work together. Neither spoiler was designed to work by itself. I have 5 different 911 books and I am not sure which one has it in. I do know it was very technical about the subject. I am paraphrasing but....it has to do with changing the center of gravity across the car. Cars with a rear spoiler tail actually has a better drag coefficient than a 911 without a tail. I think the book was "Porsche 911 story" by Paul Frere sixth edition.
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11-11-2011, 02:41 PM
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No way...It cruised 130mph without much effort at all and got up there very quickly. It had more to go for sure.
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 My old 85 Carrera hit 150mph. I don't see why a 1988 would be any different given a safe opportunity. I thought jumping up to 130mph was pretty effortless.
Last edited by mystro; 11-11-2011 at 03:05 PM.. |
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11-11-2011, 02:45 PM
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Banned
Join Date: Aug 2010
Posts: 4,682
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just in case, i have a rubber 930 spoiler that wont be used as my car is not a wide body. if someone needs it PM me for details
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11-11-2011, 02:55 PM
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Fleabit peanut monkey
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Thought you might catch that. |
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11-11-2011, 04:02 PM
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Registered User
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Alright Bob, You got me....... ,but to my defense...I have a bad head cold and am not banging on all 6 cylinders tonight. Of course I got the cold from driving around in cold with the targa top off so that either makes me hardcore or stupid.
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On another note. The book "Porsche 911 3.2 Carrera" by Tony Corlett is a must own book for ever 911 owner It is fantastic and owners will learn alot of facts. Last edited by mystro; 11-11-2011 at 04:23 PM.. |
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11-11-2011, 04:15 PM
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Fleabit peanut monkey
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Frere's book has graphs too, if I remember,
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11-11-2011, 04:22 PM
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Yea, it's good. Almost too technical if your not paying attention. It's another great owners handbook.
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11-11-2011, 04:26 PM
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Member 911 Anonymous
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 Well, it looks like OEM ride height and rake. Yes, you can hit 150 easy, with chip most likely 160 Jim
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'85 Carrera Targa Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace PCA/POC |
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11-11-2011, 04:30 PM
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Virginia Rocks!
Join Date: Oct 2003
Location: Just outside the beltway
Posts: 8,497
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Rosewood 1983 911 SC Targa | Black 1990 944 S2 | White 1980 BMW R65 | Past: Crystal 1986 944 na Guards Red is for the Unoriginal
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11-11-2011, 04:31 PM
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Commemorative Edition 1 of 80
Porsche 911 Endurance Racing Edition
Marble Grey
Ducati
1987 Porsche 930 3.3T
1981 Porsche 911 SC Targa
1976 Targa
