Looking for some photos of a 996 GT3..

Looking for some photos of a 996 GT3..

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IknowJoseph

Original Poster:

542 posts

139 months

Tuesday 14th February 2017
quotequote all
Hi all,

My 996 C2.1 is soon to be having some work done on it, so I thought some small upgrades may be in order. I'm considering fitting the upper brake air deflectors as seen on 996 & 997 GT3s, shown here circled in red:



Apparently the 997 versions are cheap and clip right in.

In the 996 & 997 GT3s there must be vents in the wheel arch liners to get air back to that piece of plastic; in the C2 they are solid. I've read that you can alter your arch liners to get air back there, but I'd really like to see some photos of 996 GT3 liners to see how it works and if they may be fitted to a C2. The PET diagrams are unhelpful.

I know it's not the weather for it, but if anyone would be able to stick a phone in the wheel well of their car and take a quick couple of photos I'd be massively grateful.

Digga

40,206 posts

282 months

Tuesday 14th February 2017
quotequote all
Crap picture and not exactly what you've asked for, but FWIW this is what the 996 turbo has:



You can just make out the vertical 'fins' in the arch liner.

IknowJoseph

Original Poster:

542 posts

139 months

Tuesday 14th February 2017
quotequote all
Thanks.

So I understand that the 996 Turbo, C4S and all the 997s have those vertical fins on the outside edge of the wheel arch liner to route the air from the radiators through the arch liners and out.

On the 996 C2 the air from the radiators doesn't go through the wheel arch and instead vents down.

997 arch liners won't fit a 996, but would 996 GT3 parts fit my C2? All narrow body after all..

On that photo of the GT3 I posted you can almost see (obscured by the stupid highlighting) the gap where air might come through the inside edge of the arch liner and into the wheel well, but I don't know:

Does any of the air from the GT3 radiator escape out of the bottom, as it does on my C2?
Is the wheel arch liner a one or two piece affair? (looks like a 2 piece from my photo)
Is a 996.1 GT3 different from a 996.2?
What part numbers I might want

Slippydiff

14,742 posts

222 months

Tuesday 14th February 2017
quotequote all
Either buy the Mk 2 996 GT3/GT2 arch liners or cut the Mk 1 items. You'll. we'd to block of the exhausts in the front undertray to ensure the air goes through the cut outs in the arch liner rather than under the car.
I may have pictures of the cut out arch liners on my PC at home, if so I'll post them this evening.

And yes, the Mk 1 GT3 liners are different to the Mk 2 items. smile

Edited by Slippydiff on Tuesday 14th February 13:38

IknowJoseph

Original Poster:

542 posts

139 months

Tuesday 14th February 2017
quotequote all
Thank you Mr Diff, much appreciatedsmile

The mk1 liners would be no good then? And the GT2 ones would be ok? I thought wide body would be different? I guess the size of the wheel wells isn't affected by the body being wide or not?


Slippydiff

14,742 posts

222 months

Tuesday 14th February 2017
quotequote all
IknowJoseph said:
Thank you Mr Diff, much appreciatedsmile

The mk1 liners would be no good then? And the GT2 ones would be ok? I thought wide body would be different? I guess the size of the wheel wells isn't affected by the body being wide or not?
Here's pictures of my Zanzibar Mk1 GT3 with the arch liner vents retro cut (by JZM) you can also see the top and bottom of the scoop that's attached to the outer face of the inner flitch, IIRC on one side it clips onto the pipes, on the other side it's held on with plastic nuts.



In the picture of the GT2 you can see the scoop more clearly and I've put arrows in to show the upper and lower points of the duct cut into the arch liner. On GT2 and Mk2 GT3 arch liners the duct is pre-formed, on Mk1 and C2/4 archliners it isn't.





I suspect you'd be able to cut the ducts into your existing arch liners by gauging the height that needs cutting from A. The scoops when you have them to hand and B. My images.
All 996 front ends are the same width, only the rears differ.smile The only difference in arch liners will be the lack of ducts for brake cooling.
IIRC there may be some more cutting needed to get the air to actually flow from behind the radiators to the ducts you form in the arch liners. Either way, you'll need to block off the exhausts on the undertray.

This image shows the pop rivets (just) that secure the blanking plate for the exhaust on the underside of the undertray :



Edit to add : Your picture of the yellow car actually shows the cutout in the wheelarch liner really well !


Edited by Slippydiff on Tuesday 14th February 17:27

CarreraLightweightRacing

2,011 posts

208 months

Tuesday 14th February 2017
quotequote all
I recently modded my 996 C2 in this area. Firstly as per the 996GT3RS I removed the L/H rad fan. Then I modified the arches for multiple reasons:

-Firstly as I have redesigned the suspension so no longer have the brake cooling duct attached to the castor arms, I needed to ensure a cool airflow to the brakes.
-Reduced lift
-Reduce Drag

Pics below refer (you may find your rad attachment brackets are corroded, I addressed this first before going any further wink ) Pictures also show the marking out for where to cur. A little tricky to calculate but the pics should give you an idea wink











Slippydiff

14,742 posts

222 months

Tuesday 14th February 2017
quotequote all
Nice work Rich (and few more grams saved) smokin

CarreraLightweightRacing

2,011 posts

208 months

Tuesday 14th February 2017
quotequote all
Slippydiff said:
Nice work Rich (and few more grams saved) smokin
I didn't even add it to the total Henry, -195.1kg right now with wheels, brakes, Carbon doors & door cards still to come wink still on for a 1086kg final dry weight bowtie

Slippydiff

14,742 posts

222 months

Tuesday 14th February 2017
quotequote all
CarreraLightweightRacing said:
I didn't even add it to the total Henry, -195.1kg right now with wheels, brakes, Carbon doors & door cards still to come wink still on for a 1086kg final dry weight bowtie
Excellent work thumbup When are the doors due ?

Question for you Rich. On your car is there ducting behind the rads/condensers to duct the exhausted/heated air down and out through the undertray. ie to ensure it's exhausted underneath the car ?

CarreraLightweightRacing

2,011 posts

208 months

Tuesday 14th February 2017
quotequote all
Slippydiff said:
CarreraLightweightRacing said:
I didn't even add it to the total Henry, -195.1kg right now with wheels, brakes, Carbon doors & door cards still to come wink still on for a 1086kg final dry weight bowtie
Excellent work thumbup When are the doors due ?

Question for you Rich. On your car is there ducting behind the rads/condensers to duct the exhausted/heated air down and out through the undertray. ie to ensure it's exhausted underneath the car ?
Jawohl mein schatz* wink

In doing so it creates drag and lift, hence my desire to map-to-grid this idea sharpish!

  • Yes my darling; saves you doing a google translate hehe
ETA: Sorry H, didn't answer the first question. I phoned up about the doors and door cards today (mirrors as well) and hopefully within 2 weeks they should be here


Edited by CarreraLightweightRacing on Tuesday 14th February 21:52

Slippydiff

14,742 posts

222 months

Tuesday 14th February 2017
quotequote all
CarreraLightweightRacing said:
Jawohl mein schatz* wink

In doing so it creates drag and lift, hence my desire to map-to-grid this idea sharpish!

  • Yes my darling; saves you doing a google translate hehe
ETA: Sorry H, didn't answer the first question. I phoned up about the doors and door cards today (mirrors as well) and hopefully within 2 weeks they should be here
I'm not sure whether to be flattered or embarrassed tongue out Is that how you address Mrs B ? biggrin



IknowJoseph

Original Poster:

542 posts

139 months

Monday 20th February 2017
quotequote all
Thanks Slippy, CLR, that was all very helpful smile

With the arch liners now understood, I'm going to take a quick look at the inner ducting to see how it gets from the radiator and out the back.

Are there any more accurate parts diagrams available? I've been looking at a big Porsche parts seller for the PET for 996.2 GT3 and got given a diagram for Carrera 2/4/4S instead.

Digga

40,206 posts

282 months

Monday 20th February 2017
quotequote all
IknowJoseph said:
Are there any more accurate parts diagrams available? I've been looking at a big Porsche parts seller for the PET for 996.2 GT3 and got given a diagram for Carrera 2/4/4S instead.
OEM website is surprisingly helpful:http://www.porsche.com/uk/accessoriesandservice/porscheservice/serviceandorgininalparts/originalparts/