996 GT3 Cup Car - please someone persuade me not to
Discussion
I bought direct from Cargraphic , who had the items on the shelf. They were a pig fitting wise as they did not line up well, might have been the way i fitted them ! They are silencers that fit between manifold and backbox. You might want spare lamda sensors to save the hassle of taking them out of the old connecting pipes. Parr ran the Porsche Cars in period in the UK so they would know exactly what exhaust was used (as would Karl's team) . If you are doing an evening trackday in the UK at an MSV track be carreful as they lower the noise limits for evenings. Though I have seen road going GT3 at these. The 997 Cups appear to fair better noise wise , something different in the exhaust design ?
Might just be my luck but it seems most MSV run tracks have tightened up on noise in the last year or so. Particularly my local track Brands Hatch.
Have fun
Cheburator mk2 said:
Also local at Brands - forget about it. New noise meter under the bridge is super sensitive. Got kicked out today - drive by limit was 92dB. Evenings limit is even lower - 98dB static and even lower drive-by...
Hi Alex, I'm not sure if you remember how loud my 996 was (although I seem to recall it showing well over 100 static at Thruxton last year), but do you think there's any point me doing track days at Brands now?Harris_I said:
Hi Alex, I'm not sure if you remember how loud my 996 was (although I seem to recall it showing well over 100 static at Thruxton last year), but do you think there's any point me doing track days at Brands now?
Hey mate,No chance unless you can fit baffles. My GT3 is about as loud as yours - I have a Manthey Exhaust, which I believe is a re-badged MM Exhaust. Anyway, it is loud, especially up the rev range. Last time I got black flagged chasing Tom Houlbrooke into Druids. Apparently they have a new noise meter under the bridge - combo of a GT3, M3, resonance from the bridge and the two really big trees around there, and lastly, the wind blowing the wrong way sent us both home early.
Yesterday I got black flagged in the 928 of all things - we were testing ahead of Spa. Same spot - under the bridge - drive-by of 92, I pinged at 98. Combo of wind and really wet air. To give you an idea how bad it was - a standard V10 M6 had to baffle its exhaust to avoid being sent home.
As much as I love BH - the only car I would take there for a TD is my M3, which is standard and quiet. Such a shame...
Alex
P.S. Are you coming to Spa on the 22nd?
Given that there is plenty of Cup car experience on this thread ... one quick question.
Is a 996 Cup more expensive to run than a 996 GT3 if one uses them the same way - in my case that would be a mix of road and track use and driving the car with mechanical sympathy as well as likely not at its limits / no need to rev out every last rpm on every gearshift etc. I would have thought the Cup should be cheaper if anything thanks to much lower weight - am I wrong?
Is a 996 Cup more expensive to run than a 996 GT3 if one uses them the same way - in my case that would be a mix of road and track use and driving the car with mechanical sympathy as well as likely not at its limits / no need to rev out every last rpm on every gearshift etc. I would have thought the Cup should be cheaper if anything thanks to much lower weight - am I wrong?
MDL111 said:
Given that there is plenty of Cup car experience on this thread ... one quick question.
Is a 996 Cup more expensive to run than a 996 GT3 if one uses them the same way - in my case that would be a mix of road and track use and driving the car with mechanical sympathy as well as likely not at its limits / no need to rev out every last rpm on every gearshift etc. I would have thought the Cup should be cheaper if anything thanks to much lower weight - am I wrong?
Assuming the Cup has had a recent engine and gearbox rebuild, then yes, its lighter weight means less strain. Plus street GT3s typically don't get treated to full periodic rebuilds so you are more likely to be replacing components in any case.Is a 996 Cup more expensive to run than a 996 GT3 if one uses them the same way - in my case that would be a mix of road and track use and driving the car with mechanical sympathy as well as likely not at its limits / no need to rev out every last rpm on every gearshift etc. I would have thought the Cup should be cheaper if anything thanks to much lower weight - am I wrong?
Edited by Harris_I on Friday 9th June 12:42
Harris_I said:
MDL111 said:
Given that there is plenty of Cup car experience on this thread ... one quick question.
Is a 996 Cup more expensive to run than a 996 GT3 if one uses them the same way - in my case that would be a mix of road and track use and driving the car with mechanical sympathy as well as likely not at its limits / no need to rev out every last rpm on every gearshift etc. I would have thought the Cup should be cheaper if anything thanks to much lower weight - am I wrong?
Assuming the Cup has had a recent engine and gearbox rebuild, then yes, it's lighter weight means less strain. Plus street GT3s typically don't get treated to full periodic rebuilds so you are more likely to be replacing components in any case.Is a 996 Cup more expensive to run than a 996 GT3 if one uses them the same way - in my case that would be a mix of road and track use and driving the car with mechanical sympathy as well as likely not at its limits / no need to rev out every last rpm on every gearshift etc. I would have thought the Cup should be cheaper if anything thanks to much lower weight - am I wrong?
Given the age of 996 cars, I'd guess that it is not inconceivable that quite a few of those will have to have rebuilds at some point in the not too distance future if one continues to use them as intended ...
the 996 Cup seems to be the last semi-affordable, manual track car one can get road registered. would've loved a road registered 355 Challenge, but those are now well beyond my means. Will do some more work on Cup cars, always been a fan of the 996
MDL111 said:
Given that there is plenty of Cup car experience on this thread ... one quick question.
Is a 996 Cup more expensive to run than a 996 GT3 if one uses them the same way - in my case that would be a mix of road and track use and driving the car with mechanical sympathy as well as likely not at its limits
From the off a 996 cup is low (extremely) and has 15 degrees of steering lock - If you are suggesting road work you would have to factor in mods to allow more articulation around the front hubs - or perfect your spin turns when things get a bit awkward!! - and raise the car to allow you to avoid smashing the underside to bits.Is a 996 Cup more expensive to run than a 996 GT3 if one uses them the same way - in my case that would be a mix of road and track use and driving the car with mechanical sympathy as well as likely not at its limits
Pope said:
MDL111 said:
Given that there is plenty of Cup car experience on this thread ... one quick question.
Is a 996 Cup more expensive to run than a 996 GT3 if one uses them the same way - in my case that would be a mix of road and track use and driving the car with mechanical sympathy as well as likely not at its limits
From the off a 996 cup is low (extremely) and has 15 degrees of steering lock - If you are suggesting road work you would have to factor in mods to allow more articulation around the front hubs - or perfect your spin turns when things get a bit awkward!! - and raise the car to allow you to avoid smashing the underside to bits.Is a 996 Cup more expensive to run than a 996 GT3 if one uses them the same way - in my case that would be a mix of road and track use and driving the car with mechanical sympathy as well as likely not at its limits
Will update the thread if I make any progress
MDL111 said:
Thank you - I put a call into a Porsche dealer to ask what the cost of road conversion is - will also ask about the steering lock (I'd be surprised if it gets TÜV without the ability to complete a reasonable XX point turn).
Will update the thread if I make any progress
I'd have thought you'd be better off talking to the usual suspects : Parrs, Fearnsport, Redline Racing, Danny at Unit 11 etc etc (if in the UK) than asking an OPC ? who'll have little or no knowledge whatsoever of the 996 Cup. All the above have run 996 Cups and thus will tend to know them and their foibles, intimately.Will update the thread if I make any progress
There are several Cup 996s at Touristenfahrt at the Nurburgring. They all somehow have Strassenzullasung, so it has been done before in Germany. I suspect a call to Manthey/Raeder and the others would actually be more helpful than OPC, who probably last saw a 996 in 2004, let alone a Cup 
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