jrgordonsenior

Completely agree. As the tubs get stressed over time they flex more making suspension setups hard to maintain. A little frame stiffening/seam welding would really be beneficial but not GTC legal unfortunately. Of course there's many out there that have been welded up....

Switchcars add on this forum has Thusly old red monster cup with only 145 total hours and a tired sprint motor. I've wanted that car for many years, we would work well together ....

911racer

So, where the cups built on c4 or c4s chassis ? I had heard at one point that they were c4s's which are a bit wider ?

Thanks

Ed

coryf

The first gen 997 (2005-2009) are the same width as the standard carrera. The 2nd gen cars (2010-2012) are based on the wider RS.

911racer

Sorry, I am thinking 996, not 997.

Thanks

Ed

jrgordonsenior

996 cups were standard C4 NB tubs.....

911SLOW

Great pics gents; thanks!




The C4 was not more rigid than the C2. This is a myth.

For example all 911 Carrera variants included a range of reinforcements introduced on MY02 ( door sills, roof frame and seat wells).
All cars, compared with their predecessors, had an equal 25% improvement in static strength and torsional rigidity.


The main reason that the 996CUP / 996GT3 used the body from the 996 Carrera 4 was the fact that this was the only body which could be used to meet the fuel tank requirements for a range of race series (FIA GT Championship, etc).
Under these regulations, no part of the fuel tank may extend beyond the forward-most point of the front wheel.

The resulting tank in the street (homologated car) offered a refill volume of 89 litres. This additional capacity was achieved solely by extending the tank into the front differential cavity, without any modification to the shell.

The GT3 and cup tubs (apart from the integrated cage difference_)also had some common key modifications over the std C4.
These included additional welded sections on the rear cross-member, that provided a more even distribution of loads from the engine and gearbox, and a modified rear bulkhead.

cstreit

I'm going to be the first to say then, that I'll trade my rare collectors 996 Cup for someones low hour 997 in about 2-3 years. I'll treat it good in the mean time.

Polarporsche

I'm thinking the same thing, I'll be looking for a 997 Cup in 3-4 years. Hopefully the price of the 996 Cups stays firm.

911racer

With the cost of maintenance on the sequential? Not me. Unless I can fit an early trans in a 997.

Ed

jrgordonsenior

+1....

Mark Anderson

I'll be putting my 2000 up for sale soon. PM me if you are interested.

IPguy

good, i might be ready for a cup then, only a few miles east from you....

racing916

How many hours on a tub average until it is starts to "stress" or show cracks? I realize it depends on how hard it is driven but just wondering how often you have to replace or weld one up.

Thanks

cstreit

Look, don't burst my bubble... Okay, I'll take a 959 with low hours for it.

Back on topic... I hope this inquiry isn't a result of your Mid-O weekend Ed!

Skypalace

Let me correct some assertions in this post that I feel need addressing. Nothing at all against you personally JR, but you made this post without full and accurate information.

I'm the former owner of that car since it was new in 2004.

I was not involved in the sale, in fact I was disappointed that the person who bought and fixed it (for his own use) ran into circumstances that forced him to sell it, but I know the situation and completely understand. I'd have fixed it and continued driving it myself, but at the time of the incident the new 2011 car was already on the way from Germany, and showed up a couple of days later, and I had already been doing some shopping of the 996, even though I was leading the 996 championship going into that weekend.

The damage was not nearly as bad as you imply. The hit was to the corner only, it fully missed the doors or tub area. There was no damage from firewall back, in fact from the cell back. The tub was completely fine and did not need to be touched, so it's riduculous to imply that it should have been retubbed or scrapped. I'm 100% confident that it'll continue to be an extremely safe, reliable, and quick car for the new or subsequent owners.

There was nothing misleading in the ad (though I just read it after seeing this post). There aren't a lot of 8 year old Cup cars that have raced competitively and never been in the body shop, and the ad never implied this car had never been damaged. In fact even after that incident, this car has seen less damage than almost any other competitively raced 996 Cup I've seen, that's only the second time a radiator has been replaced, and the first time that more than one body panel was replaced. Over the years I ran it, there was never a logbook entry other than for a cracked windshield and about-to-expire belts.

I am obsessive about maintenance, the engine and tranny are probably in better shape than any other 996 Cup around, PMNA called it the cleanest 996 Cup engine they'd ever seen in a rebuild, and I just plain never missed shifts (though I'm sure my shifts were definitely slower than others), so the tranny was only opened once (when the PMNA rebuild was done).

If the new owner is around here, or other 996 Cup owners, I found a few more spares while reorganizing my trailer that might be interesting. I'd be happy to provide any other info on the car's history, the track records it hold, etc.