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PolarExpress
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2000 Porsche 996 GT3 Mk1

PostPosted: Mon Feb 12, 2007 4:22 pm    Post subject: Reply with quote

I know of a chap who is selling a used GT3 Cup air filter for about 50. I saw the item and it looks in very good condition. They are quite easy to install and normally cost a few hundred .

If anyone is interested, please PM me and I can send you the seller's details.

Regards, Ade


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Carrera4S
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PostPosted: Mon Feb 12, 2007 4:36 pm    Post subject: Reply with quote

Are they washable? I keep seeing a few go on eBay every so often.

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PolarExpress
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PostPosted: Mon Feb 12, 2007 4:45 pm    Post subject: Reply with quote

Yes, I think they are.

SOLD!


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poon
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PostPosted: Mon Feb 12, 2007 9:35 pm    Post subject: Reply with quote

Mk1 only Ade?

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PolarExpress
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PostPosted: Mon Feb 12, 2007 9:53 pm    Post subject: Reply with quote

not sure Stu, best to ask Steve! The 997 Cup cars run these type of cone filters...

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pmjt
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PostPosted: Mon Feb 12, 2007 10:34 pm    Post subject: Reply with quote

Cone filter was only fitted to Pre-2003 Cup cars - '03 model year and onwards uses the carbon 'scoop' intake with a different filter design - claimed with different ECU mapping to make '03, '04 and '05 cars up by around 4bhp.

When combined with the different ratios in the box and final drive of the '04 and '05 this makes the later cars much snappier

Philip

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PolarExpress
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PostPosted: Mon Feb 12, 2007 11:09 pm    Post subject: Reply with quote

from what I've seen, the latest Cup filter design is sort-of-like-a-cone... probably more like a rounded trapezoid "cone"?

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pmjt
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PostPosted: Tue Feb 13, 2007 10:27 am    Post subject: Reply with quote

Adrien,

Went into the garage and below is a 2005 Cup Airfilter. The pre 2003 filter was the conical / cone you described - the later one shown below has a carbon fibre airscoop / ram and the flat filter. Sounds like the one you mentioned for sale was a pre-2003 model year filter.





and a closer view:




Philip

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PolarExpress
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PostPosted: Tue Feb 13, 2007 10:45 am    Post subject: Reply with quote

Thanks Philip. That's the rounded trapezoidal one I referred to in the new 997 (clearly it's the filter housing, not the actual filter). However, the photo shows that the new one is still fundamentally a BMC conical design, not a flat one as you suggest (filter ridges around the side of the filter, not the top)?

The one I was referring to that was for sale is the pre-03 BMC Cup cone filter like this:




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pmjt
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PostPosted: Tue Feb 13, 2007 10:49 am    Post subject: Reply with quote

Previous poster wrote:
Quote: Originally posted by oceancarrera on 13 February 2007
The one I was referring to that was for sale is the pre-03 BMC Cup cone filter like this:





Yep - that's the pre-'03 type.

Philip

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Dunc
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PostPosted: Tue Feb 13, 2007 11:24 am    Post subject: Reply with quote

The cup car looks like new Philip, a very clean machine!

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Dunc
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PostPosted: Tue Feb 13, 2007 11:33 am    Post subject: Reply with quote

Actually Philip, Ade apologies in advance for veering from the original topic, could you describe the exhaust layout on the cup car - i'm curious to know if it is a straight through system or wheather there is any form of silencing?

And a more silly question, do they require cats?

Cheers


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Carrera4S
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PostPosted: Tue Feb 13, 2007 11:59 am    Post subject: Reply with quote

That looks like what Manthey are using on the powerkit for the 997.....

Air box image

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pmjt
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PostPosted: Tue Feb 13, 2007 12:07 pm    Post subject: Reply with quote

Previous poster wrote:
Quote: Originally posted by Dunc on 13 February 2007
The cup car looks like new Philip, a very clean machine!


Thanks Dunc - she's completely original and never, ever damaged - apart from a 'kiss' from Damien Faulkner's wheel in one of the Carrera Cup rounds. She's still liveried as she finished the Cup.

Now showing just about 2,500 miles from new - I do about 10 events a year in her - provided I get the time Very Happy

Philip

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Dunc
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PostPosted: Tue Feb 13, 2007 12:18 pm    Post subject: Reply with quote

Previous poster wrote:
Quote: Originally posted by pmjt on 13 February 2007

Previous poster wrote:
Quote: Originally posted by Dunc on 13 February 2007

The cup car looks like new Philip, a very clean machine!

Thanks Dunc - she's completely original and never, ever damaged - apart from a 'kiss' from Damien Faulkner's wheel in one of the Carrera Cup rounds. She's still liveried as she finished the Cup.Now showing just about 2,500 miles from new - I do about 10 events a year in her - provided I get the time Very Happy
Philip


Won't be many in that condition, cup can get a bit like dodgems from footage i've seen!

Is there quite a noticeable diference in the gearing from your road GT3? I've read a fair bit recently on the merits of fitting the cup's crown pinion etc. to reduce the gearing.

And these pipes, are they straight throughs?

Sorry for the barrage of questions, i've not had much exposure to a cup car to investigate or myself Wink


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pmjt
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PostPosted: Tue Feb 13, 2007 12:21 pm    Post subject: Reply with quote

Previous poster wrote:
Quote: Originally posted by Dunc on 13 February 2007
Actually Philip, Ade apologies in advance for veering from the original topic, could you describe the exhaust layout on the cup car - i'm curious to know if it is a straight through system or wheather there is any form of silencing?
And a more silly question, do they require cats?


From the 'Technical Manual' "Exhaust system with modified catalytic converter and silencer, 110 db(A) in accordance with the DMSB noise regulations"

There was an option for the '04 and '05 model year to have a 103db(A) modified system - but since UK circuits are either 98db or at most 101db when restricted, who cares! Surprised Very Happy

The earlier cars had side exit exhausts and a completely different exhaust system close to the road cars, allowing silencing mods much more easily - my old '02 car was down to about 99db - but the '04 and '05 cars are completely Motec based - NOT Motronic - so the 'tuning' of the air intake and exhaust is much more finely balanced.

I'll get a photo of the underside of the system when she's next on airjacks in a week or so, if you're interested.

HTH

Philip

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pmjt
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PostPosted: Tue Feb 13, 2007 12:27 pm    Post subject: Reply with quote

Previous poster wrote:
Quote: Originally posted by Dunc on 13 February 2007Won't be many in that condition, cup can get a bit like dodgems from footage i've seen!
[/QUOTE]


Yep - as far as I know she is the ONLY undamaged '05 car remaining - Porsche Cars imported only three for the '05 season (Supercup had already gone to 997 Cup) - the Tim Harvey car met it's end very early on in the season and the Porsche Cars Guest car was, from memory, destroyed at a Brit Car round after the season ended, at Brands. May be wrong on the event - but I'm sure it was at Brands.

A friend went to look at another '05 - supposedly never raced (haha) and modified to road specs, in Germany over the weekend - suffice to say not a lot of the description was true Very Happy


Previous poster wrote:
Quote: Is there quite a noticeable diference in the gearing from your road GT3? I've read a fair bit recently on the merits of fitting the cup's crown pinion etc. to reduce the gearing.
And these pipes, are they straight throughs?


Yes the gearing is completely different - Tim Chandler (timbo on PCGB) has modified his RS to be basically a Cup car back end - Cup diff, gear ratios, etc. He loves it aparently. If you're going to track a GT3 heavily - and still need it road registered - this seems to me to be the only logical answer.The Cup is much more 'sprint' oriented - the road car much more relaxed. The road car has much longer legs and will hit a higher top speed from memory, but the Cup car will get there quicker.

Philip

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Dunc
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PostPosted: Tue Feb 13, 2007 12:50 pm    Post subject: Reply with quote

Thanks for the info and I'd definately be interested in a pic of the underside, cheers Philip.

I've read of Tim's heavily modded RS on Titanic, quite a length he's gone / going to!

I believe your friend may post there to as i read of womeone abandoning the hunt for a cup car and taking up a 97GT3RS instead.

Not sure if the lower gearing would cause too much disruption on a roadgoing 3 as i find mine to be a bit long geared for road use anyway. I believe that the top speed is reduced to around 175mph but that's hardly a concern if you're getting up there much quicker!


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pmjt
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PostPosted: Tue Feb 13, 2007 12:56 pm    Post subject: Reply with quote

Previous poster wrote:
Quote: Originally posted by Dunc on 13 February 2007
Thanks for the info and I'd definately be interested in a pic of the underside, cheers Philip.
I've read of Tim's heavily modded RS on Titanic, quite a length he's gone / going to!

I think the Carbon Wheels were the last things I heard had gone on Very Happy


Previous poster wrote:
Quote: I believe your friend may post there to as i read of womeone abandoning the hunt for a cup car and taking up a 97GT3RS instead.


Nope - must be someone else - my mates looking for a Cup car only.

The market for them is getting busy - I've had two unsolicited offers for mine and it's not for sale!

Previous poster wrote:
Quote: Not sure if the lower gearing would cause too much disruption on a roadgoing 3 as i find mine to be a bit long geared for road use anyway. I believe that the top speed is reduced to around 175mph but that's hardly a concern if you're getting up there much quicker!



Agreed - Anyone who's worried about loosing the last 20mph of top end needs therapy Wink

Philip

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Dunc
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PostPosted: Tue Feb 13, 2007 1:22 pm    Post subject: Reply with quote

Must have been a few suitors for the German cup car then, two non purchasers so far.

Must make an excellent trackday car, esp. now that the values are comparable with road cars. Considering that some people trailer their 96RSs to trackdays, you'd think the cup car would give a bit more entertainment for similar costs?!


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