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Porsche 996 cup car

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    #31
    Nice one. Iíve been offered a very desirable 1 owner 996 Cup Car in a deal for my 934. As tempted as I am I just wouldnít get the use out of it.

    Iíll just live vicariously through you lol.
    Originally posted by S
    I just want to apologise for some of my shit talking back around page 5.

    Comment


      #32
      Thanks everyone.

      I left the ďstoryĒ at around May 2018 when the car popped itís 4th successive coolant hose on its first outing at the recently opened Bend Motosport Park. At the time I had paid entry into round 2 of the SA State Champs where I would be racing in Sports Cars against a few friends with cup cars. Had even booked the track side hotel for two nights. At the end of that track day, I decided to withdraw from the race meet. About half of the coolant hoses were on back order and there was no way the car would be ready in time for the race meet which was happening 2 weeks later. Plus I strongly felt I was not ready to make a racing debut and I was not at all confident that the car was done being shaken down - I had barely turned a lap on full tilt!

      A month later, the radiator hoses had been swapped with new ones. About 20 hours of labour were required as there are loads of them, and thankfully Buiks were able to do them all with the engine in the car which I was very thankful for. Just as they were about to put the front bar on to complete the job, there was one last check for any leaks and the center radiator (these cars have three) burst and started pissing coolant out of the middle of the core. Fuckní. At this point I was starting to wonder if the car had a lifted head gasket or something and although the compression test during the PPI had been very strong, I wanted a leak down test carried out just for my own piece of mind. Buiks explained that if there was a BHG it would be pushing water out of the overflow (which it wasnít), but I got them to go ahead with the leak down anyway...the results of which were fine. Cup cars are usually just run on water and a 1% additive, a recipe that tends to eat radiators and hoses over long periods of time. Our conclusion was that all of these cooling system failures were most likely down to the car not having been run properly for such a length of time, and that the car just needed to continue to be run in order to see the issues through. A new centre radiator was fitted, coolant flushed again (third time) and the car was brought home.

      5 months passed before I had the opportunity to take the car out again. Normal life events and having a young family meant that this shakedown process had been drawn way out. I needed to at least run the car once more to be confident that it would be to be ok for the Adelaide Motorsport Festival due to be held on the first weekend of December. It was back to The Bend for one of their public track days.

      A quick pre-track day check over...


      All loaded up ready to leave for the bend. I had this trailer custom built with the axles set back to be able to tow the rear engined Porsche comfortably. Itís got a manual tilt and long ramps for easy loading and Iím pretty happy with it, except the paint looks like shit after 8 months and the guy who built it wonít fix it unless I bring it back to Melbourne. Not pleased.


      In the paddock at The Bend, car unloaded and ready to go. One thing I never new with slicks...itís not a good idea to trailer the car with tyres you intend on running out on track, as they flat spot very quickly. I was also told slicks donít need balancing. Wrong. I spent my first two track days just about rattling the teeth out of my head due to tyre vibration because the wheels werenít balanced. I wonít make that mistake again.


      Once out on track, I was disappointed to see the coolant light again start flashing after one hot lap. The light flashes once the coolant level drops to a certain level. So, whilst we werenít suffering catastrophic coolant hose failure like before, there still seemed to be a small leak from somewhere. I pulled in after three laps to avoid overheating and found the passenger side front wheel to be dirtier dirtier than the rest with a spray pattern down the side skirt.



      Quite frustrated, but not entirely shocked, I pulled the front wheel liner out to reveal a small collection of fluid at the bottom of the LHS radiator. The source of the leak could not be visibly seen but the core stank and was pretty dirty looking. Car on the trailer, day done. I was glad I had at least run the car and found what I had hoped to be the final cooling system issue then and there, rather than it potentially ruin my Adelaide Motorsport Festival, a great event that I didnít want to miss.

      A little highlight of the day was dragging this new Mustang down the straight. Old mate was blocking people all day so I chose to stay well away from him in the braking zone in case he tried something stupid. As a result I almost dropped it into T1 due to the narrow entry.



      Pic from afar, but it illustrates how wide the bitumen is at The Bend. Pretty luxurious compared to Mallala.


      Once back from the track day, I set about swapping the broken radiator with a new item. A pretty easy job, about 2.5 hours all up including removing the front bumper. By now the only parts of the cooling system that werenít brand new were the right radiator and gearbox cooler. Surely that would be enough!




      The car then went back to the shop where I had them flush the cooling system one more time and also bleed it (a real bitch to do unless you know what youíre doing), along with an oil and filter change in prep for AMF.



      Also before AMF, there were a couple of little jobs I wanted to take care of. Job no. 1 was to clean the BMC oil filter. The filter had lost its trademark pink hue and I figured it was probably clogged with coolant residue from all of the hose failures, so I purchased a refresh kit. Upon pulling the filter off, I discovered that 16 years and many heat cycles had caused the silicone joiner to crack and crumble. Someone had tried taping the coupler back together with race tape. I didnít want any of it in my engine and the filter was pretty ratty looking anyway so I ordered a new one from Europe. Luckily the part was still available new.



      Job 2 was to have the carbon heat shield repaired. It had been cracked on both sides, probably from rear end contact in a race (the shroud seals firmly against the engine lid). More race tape was used here and well, Iím a bit fussy so I wanted it put right. I left the part with CL Composites here in Adelaide. Carlo is from Italy and worked at the Ferrari F1 team back in the day. He also happened to work for Greg Murphy Racing in 2003, Ď04 & Ď05 when they ran the 996ís so he worked on my car in its hey day. We had a good chat about the cars and he was able to tell me more about its history which was awesome for a nerd like me.





      All looking much tidier with the new filter and repaired shroud in place, complete with Clark rubber edging seal. More than just foam and rubber.


      Job 3/3 was to have a go at improving the gear shifter. When I got the car the gearknob (which is the same as the street car, only without the boot) was broken, causing it to flex in your hand when you change gear. Not ideal, especially when youíre already not used to shifting with your right hand. Further more, the factory cup shifter bushes are known for wearing out in short order resulting in play fore and aft and side to side. Given the race clutch doesnít allow for gingerly (slow) gear shifts, itís useful to have some precision in the shifter. The worn bushes make effective gear changes difficult to achieve. The cup version is identical to the street version, except it has uprated steel bushes instead of plastic. The cup shifter is classified as NLA (no longer available) and the shifter fetches big $ used. I happened to have an aftermarket shifter bushing kit lying around that I never got around to fitting to my road GT3 before I sold it, but did not want to tear apart the unicorn cup shifter. Instead, I bought a used, bog standard Carrera shifter from the states for $100 delivered and fit the upgraded bushings to it. I now had an upgraded shifter with much more robust bushings that had no play and stuck the unicorn on the shelf.

      I didnít take any pics of the process but note the huge bushes at either end of the shifter mechanism and the steel shifter yoke. A nice bloke from Ohio also sent me his used street car gear knob for free, which I trimmed to fit, as the cup one is also NLA.



      My two year old is obsessed with the ďblue porf yace carĒ and wants to get involved whenever Iím working on it.

      Comment


        #33
        I probably shouldn't be surprised but I am at how clean the donk is.
        CAD Automotive Paint Correction, like us on the faceballs. Discounts on all detailing and ceramic coatings for PF members

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          #34
          997 shifter should fit a 996 and the shift is way better...

          Comment


            #35
            This is awesome and good write up, I wondered what one of these is like to actually own.
            Gives me bad thoughts.

            Comment


              #36
              Originally posted by FLI355 View Post
              I probably shouldn't be surprised but I am at how clean the donk is.
              The car has 11,000 kms but I too expected the bay to be a bit grimier when I got the it. It was pretty clean but I have since given it a pressure wash - easy engine to clean as there isnít much in the way of intake and emissions crap.

              Originally posted by Beavis View Post
              997 shifter should fit a 996 and the shift is way better...
              997.1 is plastic junk like most 996. 997.2 has the steel bushes and slightly shorter throw but I prefer the longer throw of the cup shifter. Feels a bit more natural. Plus this shift kit was cheaper than a new 997 shifter.

              Originally posted by Nugs View Post
              This is awesome and good write up, I wondered what one of these is like to actually own.
              Gives me bad thoughts.
              Thanks. At some stage Iíll do a video showing some of the intricacies of the car and also the equipment needed to run it.

              Comment


                #37
                Might be worth investing in a set of travel wheels and tyres, so as to avoid flat-spotting the slicks.
                Originally posted by brewdles
                In short, some cunt at test and tune had a 250cc honda turning to 11ty and it sounded porn. Do that.

                Comment


                  #38
                  ^^^ it came with 2.5 sets of wheels but I bought another set so it has the full three sets with a couple of spares

                  Comment


                    #39
                    Awesome! A Cup Car is definitely at the top of the list for a dedicated track car if I had the money.

                    Keep the write ups and photos coming.
                    2015 Skoda Octavia RS162TSI
                    2004 MX5 SE Turbo
                    2016 Toyota 86 GTS (No Pics)

                    Comment


                      #40
                      Seems like a wise purchase, nice to see the level of interchange ability between road and race car, makes maintaining it at this level more reasonable. I heartily approve of a dedicated racecar rather than a street/track day car. I simply put 4 flat patches on my trailer for the trip to and from the track and the car is stored on stands between meetings with tyres wrapped in black cling wrap from CMTP, if left for the off season I'll treat the tyres before wrapping.
                      " Racing cars don't have doors. Toilets have doors" : Keke Rosberg

                      Comment


                        #41
                        Originally posted by spiller View Post

                        Gday mate, it's been a while. What is your user over there on the kraut forum ya bloody lurker! :) Not that I post much over there so pot calling the kettle black.

                        .
                        Man I can't even remember. B&E355 or B&E997? I just lurk too, and spotted the blue beast come up ;)

                        Good to have you back mate - very interested in your log and experiences with this bad boy - especially now that *knocks wood* the cooling system is sorted.

                        Comment


                          #42
                          Originally posted by spiller View Post
                          Once back from the track day, I set about swapping the broken radiator with a new item. A pretty easy job, about 2.5 hours all up including removing the front bumper. By now the only parts of the cooling system that werenít brand new were the right radiator and gearbox cooler. Surely that would be enough!
                          I would have just done the right rad while it was all apart - given that you've had 2 of the three fail....
                          Gearbox cooler is a heat exchanger type is it?
                          "Where can we get hold of a Vincent Black Shadow?" "Whats that?" "A fantastic bike," I said. "The new model is something like two thousand cubic inches, developing two hundred brake-horsepower at four thousand revolutions per minute on a magnesium frame with two styrofoam seats and a total curb weight of exactly two hundred pounds."

                          Comment


                            #43
                            Here is a photo of your car next to the car that Iíve been offered at Bathurst. Iím tempted but just donít think Iíd get the use out of it.

                            Originally posted by S
                            I just want to apologise for some of my shit talking back around page 5.

                            Comment


                              #44
                              Originally posted by Mike Lowrrryyy View Post
                              Here is a photo of your car next to the car that Iíve been offered at Bathurst. Iím tempted but just donít think Iíd get the use out of it.

                              Jim and I have had a discussion and we're pleased to advise that we are happy to use it on your behalf.

                              Sent from my G8141 using Tapatalk

                              1998 MX5 - Ohlins DFV coilovers, Roll bar,15 x7.5 Konig Litespeeds, Mania Intake
                              2014 Colorado LT - Oversized Whitegoods. Kid/bike/track hack/horse hauler.

                              Comment


                                #45
                                Originally posted by Gammaboy View Post
                                I would have just done the right rad while it was all apart - given that you've had 2 of the three fail....
                                Gearbox cooler is a heat exchanger type is it?
                                I thought about it but the right side was visibly newer looking so chanced it. The front bar is only about 45 minutes to get off so if it happens again no big deal. Yep the gearbox cooler is just a smaller version of the engine cooler. Have never heard of one failing though.

                                Originally posted by Mike Lowrrryyy View Post
                                Here is a photo of your car next to the car that Iíve been offered at Bathurst. Iím tempted but just donít think Iíd get the use out of it.

                                I know the owner of that car, he offered it to me a couple of years ago but I didn't have the cash at the time. It's mint from my understanding. What's the ask price? PM if you like.

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