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tp81
Suzuka
Joined: 04 Mar 2010
Posts: 1152
Location: Glasgow
1997 Porsche 993 Carrera 2S
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 Posted: Wed Apr 21, 2010 8:42 am Post subject: 993 Wiper Blades
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I am changing the wiper blades to the PIAA type, looking on their web site the recommended size is way too big. Measuring the current Bosch fitted I have a straight 16" and a straight 18".
Is this the best fit and size or did the car come with curved blades 
_________________
1971 Alfa GT 1300 Junior
1973 911E (restoration project)
1980 930
1995 993 RS
2014 M5
2013 110 Defender
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orangecurry
Donuts For Windows
Joined: 13 Mar 2008
Posts: 9628
Location: West Sussex
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| Posted: Wed Apr 21, 2010 8:52 am Post subject:
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I'm not near the car now, but I'm fairly sure the sizes are 18 and 15? That's what IIRC I have from PIAA, and they are excellent 
I bought straight ones, and although there is a very small triangle (bottom right) that is missed, this is out of my field of vision, AND more importantly the majority of the screen is 'flat' and so is IMO best suited to flat blades.
I can double-check the sizes tonight.
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Pickled Piper
Suzuka
Joined: 07 Aug 2004
Posts: 1101
Location: United Kingdom
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| Posted: Wed Apr 21, 2010 8:55 am Post subject:
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The proper Porsche supplied blades have some extra linkages in them to allow the rubber blade to bend over the curve of the screen.
I only found this out last week. I had been fitting aftermarket Bosch blades for the last few years thinking they were all the same. I bought some Porsche blades from an OPC (made by Bosch). These are definitely different.
Sorry that doesn't answer your question.
pp
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Ecky993
Nürburgring
Joined: 12 Oct 2009
Posts: 491
Location: Devon
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| Posted: Wed Apr 21, 2010 8:57 am Post subject: Blades
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18" & 15" are the ones I use.
Tried the 'Aero' style offering, but looked wrong... 
Steve
_________________
2014 981 S pdk
ex 997 GTS - Pdk - Basalt
ex 03 996tt Man
ex 98 993 C2S Tip
ex 01 996 C4S Man
ex 02 996 C4S Tip
ex 04 997 S Man
ex 93 993 Coupe Man
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dommorton
Zolder
Joined: 16 Mar 2008
Posts: 5047
1998 Porsche 993 Carrera 4S
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| Posted: Wed Apr 21, 2010 7:07 pm Post subject:
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| Pickled Piper wrote: | The proper Porsche supplied blades have some extra linkages in them to allow the rubber blade to bend over the curve of the screen.
I only found this out last week. I had been fitting aftermarket Bosch blades for the last few years thinking they were all the same. I bought some Porsche blades from an OPC (made by Bosch). These are definitely different.
Sorry that doesn't answer your question.
pp |
Interesting as I bought Bosch ones from ECP and they don't sit great on the screen and leave smears.
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Good cars can get you from point A to point B. And great cars? Well, they'll just get you into trouble.
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markomate
Hockenheim
Joined: 13 Jan 2008
Posts: 680
Location: Beds
1996 Porsche 993 Targa
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| Posted: Thu Apr 22, 2010 8:14 am Post subject:
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The genuine Porsche arms are better, I kept my old ones but fitted the Bosch Aero Twins from Ace parts, they dont "fit" the screen curve as well but they seem to work well and I just realised they are still ok after a year.
Mark
_________________
"They don't tell me nuthin"
Targa gone!!
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orangecurry
Donuts For Windows
Joined: 13 Mar 2008
Posts: 9628
Location: West Sussex
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| Posted: Thu Apr 22, 2010 8:18 am Post subject:
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I measured my flat/straight PIAA wipers this morning.
18 and 15 inch.
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tp81
Suzuka
Joined: 04 Mar 2010
Posts: 1152
Location: Glasgow
1997 Porsche 993 Carrera 2S
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| Posted: Thu Apr 22, 2010 9:29 am Post subject:
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Thanks for all the info and help. 18" and 15" sounds good to me.
_________________
1971 Alfa GT 1300 Junior
1973 911E (restoration project)
1980 930
1995 993 RS
2014 M5
2013 110 Defender
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cambjones
Barcelona
Joined: 20 Apr 2010
Posts: 1404
1997 Porsche 993 Carrera 4
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| Posted: Fri Apr 23, 2010 2:39 pm Post subject:
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I just bought some this morning and then fount this thread post purchase...
Seems no one really know which ones fit the 993... the PIAA site is wrong as it recommends 22" I think (one straight one curved)
I measured mine current ones and found the following
17¾ Drivers Side
15¾ Passenger Side
15 Back
So I bought 17, 16, 15... I have not fit them yet.. I'll let you know what I find when I do... seem everyone recommends the straight ones... and I agree.. the fancy one with the aerodynamic wing seems a little bit too 'boy racer' to me
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orangecurry
Donuts For Windows
Joined: 13 Mar 2008
Posts: 9628
Location: West Sussex
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| Posted: Fri Apr 23, 2010 3:53 pm Post subject:
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18 and 15 !!!
It looks like this - you can see even a 15 'overhangs' at rest, but is perfect at all other times.
Excuse the Volcanic Ash 
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madalaa
Fuji
Joined: 13 Mar 2008
Posts: 9137
Location: West London
2009 Porsche Boxster (987)
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| Posted: Sat Apr 24, 2010 7:17 am Post subject:
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| orangecurry wrote: | 18 and 15 !!!
It looks like this - you can see even a 15 'overhangs' at rest, but is perfect at all other times.
Excuse the Volcanic Ash
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....mine look like that and it realyl annoys me.......if I buy and fit Porsche recommended ones does that mean they will stay flush with the curve of the screen when they are at rest?
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Pickled Piper
Suzuka
Joined: 07 Aug 2004
Posts: 1101
Location: United Kingdom
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| Posted: Sat Apr 24, 2010 7:45 am Post subject:
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| madalaa wrote: | | orangecurry wrote: | 18 and 15 !!!
It looks like this - you can see even a 15 'overhangs' at rest, but is perfect at all other times.
Excuse the Volcanic Ash
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....mine look like that and it realyl annoys me.......if I buy and fit Porsche recommended ones does that mean they will stay flush with the curve of the screen when they are at rest? |
Yes they will. The official Porsche ones have some extra linkages that allows the blade to follow the curve of the screen.
pp
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orangecurry
Donuts For Windows
Joined: 13 Mar 2008
Posts: 9628
Location: West Sussex
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| Posted: Sat Apr 24, 2010 9:43 am Post subject:
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But then you can't have silicone - it makes a MASSIVE difference when driving in the rain.
And you have to struggle to 'notice' the straight wiper sticking out... only really noticable if you are floating in the air above the roof.
Still, we 993 owners do have certain issues about our cars
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madalaa
Fuji
Joined: 13 Mar 2008
Posts: 9137
Location: West London
2009 Porsche Boxster (987)
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| Posted: Sat Apr 24, 2010 12:41 pm Post subject:
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....As I am quite happy to use Rainex....silicone wipers are not that important to me but I certainly would like my wipers to sit flush with the screen at rest.
It's all about aesthetics for me....
So how much are OPC wipers?
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Helsinki Paul
Montreal
Joined: 26 Oct 2009
Posts: 512
Location: Finland
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| Posted: Sat Apr 24, 2010 1:46 pm Post subject:
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The result is the same see below.
Complete set back and front cost me €84! 
_________________
1995 C4 Polar silver
2006 Range Rover V8 Vogue
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Pickled Piper
Suzuka
Joined: 07 Aug 2004
Posts: 1101
Location: United Kingdom
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| Posted: Sat Apr 24, 2010 6:39 pm Post subject:
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| Helsinki Paul wrote: | The result is the same see below.
Complete set back and front cost me €84! |
I just checked my invoice. The part number is the same as yours Helsinki Paul but the wiper is definitely different. It has an extra linkage and follows the curve of the screen. I bought mine in 2007 maybe they are all the same now.
I paid about £26.
pp
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cambjones
Barcelona
Joined: 20 Apr 2010
Posts: 1404
1997 Porsche 993 Carrera 4
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| Posted: Sun Apr 25, 2010 11:56 am Post subject:
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I just replaced my wipers with PIAAs...
I found it quiet difficult to find the right ones... size and curved/straight.
The PIAA UK Site recommends the wrong sizes 22". The US PIAA site does a better job explaining the differences and recommends
Driver Side 18"
Passenger Side 15"
Back N/A
But still not sure if any should be curved or all straight are fine.
http://www.piaa.com/controller.php?action=getWipers&make=PORSCHE&model=1631
I chose the following based on the size of the existing wipers I was replacing which seemed to work well so I figured still with same sizes.
17" Driver Side
16" Passenger Side
15" Back
So here is what I found when installing them.
Back Wiper
For the back wiper the clips supplied are compatible with the wiper arm, and the PIAA wiper does not fit using the exiting clip from the existing wiper... so what you can do is remove the rubber blade from the exiting wiper and replace it with the rubber blade from the PIAA wiper... 15" is the right size and all works well.. If you can buy just the rubber blade instead of a full 15" PIAA wiper you will save your self some cash.. but I have not see where you can buy just the rubber blade part.
Front Wipers
Firstly the instructions recommend using clip C3 for Porsche... but you should use C1 the smaller clip.
Drivers Side.
17" seems to work perfectly, except for the overhang at resting position. This makes me wonder if curved rather than straight might be better choice for the Driver Side... not sure if any one has tried that version. The suggested 18" might also work.. but my 17" wiper seems to go right to the top of the screen so I'd be concerned that the 18" is too long???
Passenger Side
16" are a little too long... it wipes over the rubber at the top of the windscreen by a half and inch, which you wouldn't think would be a big problem but what it does is affects the half an inch of the rubber blade so it leaves a slight trail of water. I reckon this would not happen with 15" blades.
Pics below of what I found
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| Use C1 Clip not C3 as the instructions suggest |
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| Water Trail left by Passenger 16" blade |
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| Top of Screen, 16" Passenger Side Blade slightly too long |
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| Exiting Drivers Side 16 3.4" |
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10791 Time(s) |
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Helsinki Paul
Montreal
Joined: 26 Oct 2009
Posts: 512
Location: Finland
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| Posted: Sun Apr 25, 2010 12:57 pm Post subject:
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I paid about £26.
pp[/quote]
And made in Belgium too!
_________________
1995 C4 Polar silver
2006 Range Rover V8 Vogue
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ellistai
Spa-Francorchamps
Joined: 26 Jan 2009
Posts: 273
1997 Porsche 993 Carrera 2S
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| Posted: Sat Jan 12, 2013 4:27 pm Post subject:
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Just wondering if anyone has tried the CURVED PIAA wipers, especially the driver side one? Are they sitting nicer on the screen?
_________________
Ex: 04 997 C2S Manual
Current: 97 993 C2S Vesuvius Grey MT
10 997.2 C2S Macadamia Metallic MT
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Nik
Imola
Joined: 03 Apr 2007
Posts: 816
Location: Surrey
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| Posted: Thu Nov 19, 2015 8:24 am Post subject:
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Help. Trying to install the piaa wipers but can't seem to get them to fit on my wiper arms.
Tried the c1 clip as above but when I put it over the arm, the clip gets wide and then won't click onto the blade. 
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![Porsche 911 [991]](./images/models/998.png)
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