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Virginia Rocks!
Join Date: Oct 2003
Location: Just outside the beltway
Posts: 8,497
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Spoiler Questions (chin, rear, ducks, etc)
I want to put on a chin spoiler only and found this quote in one of the threads:
Quote:
I also have a/c in the car and was wondering if I need to do anything special with the underbelly condensor protector bar? Now, regarding ducks.... I intend to keep the a/c. Supposing I wanted to swap a duck on and off for the track, how difficult would that be? Can the rear a/c condensor be loosened from the current decklid and bolted to the duck without disconnecting the lines? How much of a P.I.T.A. would this be?
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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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08-12-2005, 05:49 PM
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Make Bruins Great Again
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It is widely accepted that a rear spoiler (like a whale tail) without a chin is dangerous at speed. For this reason, I am pretty sure that a chin without a rear spoiler will contribute to the handling to some degree. I can say that many folks have said that you can run a chin without the rear.
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-------------------------------------- Joe See Porsche run. Run, Porsche, Run: `87 911 Carrera |
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08-12-2005, 05:55 PM
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Virginia Rocks!
Join Date: Oct 2003
Location: Just outside the beltway
Posts: 8,497
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I'm looking for a little more stability in the front when at the track - so I hope I get some improvement!
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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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08-12-2005, 06:03 PM
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Make Bruins Great Again
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You may want to look at your tire and alignment setup as well.
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-------------------------------------- Joe See Porsche run. Run, Porsche, Run: `87 911 Carrera |
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08-12-2005, 06:13 PM
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Virginia Rocks!
Join Date: Oct 2003
Location: Just outside the beltway
Posts: 8,497
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A whole suspension refresh is overdue, but for my last track session this year, a chin spoiler is a low hanging fruit.
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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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08-12-2005, 06:17 PM
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Registered
Join Date: Mar 2005
Location: Melbourne, Australia
Posts: 546
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I believe our cars are designed for either both or neither. The spoilers do make a difference at speed and will behave to keep the ends of the car more firmly planted.
Simon
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85' Carrera 3.2 02' Mazda MX5 |
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08-12-2005, 07:04 PM
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Registered
Join Date: Apr 2003
Location: Maitland, Florida
Posts: 892
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The rear spoiler makes a much bigger diference than the front spoiler. I have a chin spoiler only on my targa and I may have noticed a small improvement in stability on the street, but I haven't tracked this car.
How fast do you go at the track. I'd bet you're fine with just the chin spoiler as long as the turns are slower than 120 mph. I've only been at one track where I was going better than 120 in a turn, but mayeb I'm just slow. Jerry Kroeger
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82 911SC Targa (05 Boxster S ) gone, but not forgotten 87 Suzuki GSXR-1100 1953 MG TD Mk II |
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08-13-2005, 06:41 AM
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Registered
Join Date: May 2001
Location: Anchorage, Alaska, USA
Posts: 857
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Quote:
A spoiler isn't a cosmetic upgrade for 911's, it a mechanical upgrade. The change at one end will affect the other. I read somewhere that the rear duck has benefits at speeds as low as 50mph. I'll try and dig it up for you.
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"The greatness of a nation and its moral progress, can be judged by the way its animals are treated." M. Gandhi 1977 911S...sold; 03 F20C; 2009 VW Jetta Sportwagen |
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08-13-2005, 07:18 AM
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The effects of the spoilers are subtle, Front w/o rear is fine for sure(in fact the added lightness in the back may appeal to you, it does to me), some object to rear only, but if there is an issue w/ that it will only be at very high speed(never tried that myself though)
I've run mine in numerous differnt configs, 3 different fonts w/ 2 different rears on the '72 and 2 different fronts w/ 3 different rears on the '76 They were all fine even at speed. Get the suspension/wheels/tires set up right the rest will follow
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Bill Verburg '76 Carrera 3.6RS(nee C3/hotrod), '95 993RS/CS(clone) | Pelican Home |Rennlist Wheels |Rennlist Brakes | |
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08-13-2005, 09:35 AM
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Virginia Rocks!
Join Date: Oct 2003
Location: Just outside the beltway
Posts: 8,497
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Quote:
 Jerry: I do 110-115 on the straights. I can't imagine doing that kind of speed through a turn!
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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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08-13-2005, 12:35 PM
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Max
1976 Porsche Carrera 3.0
1995 Porsche 993 Carrera Coupe
