Knackered old Porsche with loads of miles - 996 content
Discussion
poppopbangbang said:
Theophany said:
Please tell me I'm reading this right and that you're using ex-F1 race car parts in your car. That is all kinds of awesome.
Well you use what you have to hand.There are pics further up the thread of collector and pumps, although they might be the old spec lifts which were 2000 BAR.
poppopbangbang said:
bucks said:
And hat's my point, £3k in fuel PA is not very much at all, seems far too low. I spend more in a dull MK4 Gti
Averaged over it's life..... it hasn't been doing 60K miles a year for 17 years!I'm loving this thread. What a fantastic car and really shows what can be done with some proper engineering input. It obviously helps having access to F1 tech and also having a "purpose" for having such a vehicle. You should advertise your services to the aviation industry. We've paid a fortune to courier parts across the country to the north of Scotland, although they usually turn up in a french registered Renault van with two knackered drivers. Then we find out an alternative part was in stores all along!!
I jest, and really appreciate the attention to detail here and the dubious nature of the high speed midnight runs. As someone who has been involved in motorsport, rallying, I can appreciate doing these sorts of journeys in the past when we could get away with it. It's good to see it's still being done.
I jest, and really appreciate the attention to detail here and the dubious nature of the high speed midnight runs. As someone who has been involved in motorsport, rallying, I can appreciate doing these sorts of journeys in the past when we could get away with it. It's good to see it's still being done.
So bit of an update on it. It continues to work without much issue with a good few thousand miles more under its belt since I started this thread. It's got another trip to France to do next week so that's another 1K miles there.
Depending which way you look at today is it's birthday. It left the line at Stuttgart just before 7AM on the 5th July 1999 and left the factory having had the none line bits done on the afternoon of the 21st. So it was either 17 on Tuesday the 5th or it's 17 today. Either way this is a car that was built last millennium, is still in daily use and continues to outperform a great deal of modern stuff. Whatever issues the later 996s had (and there were a few) I do have to tip my hat to Porsche for building this one.
Few more upgrades coming through as well during summer break. Firstly "hot and high" cooling can be an issue, especially in 30 degree+ ambient temps so I have decided to move to CSF radiators. I did look at having something made but to be honest the CSF rads seem to have a great reputation, are very well priced and the cost of having specific cores made to match the installation angle is pretty hefty so we'll see what they're like:
I'm not keen on going to a centre radiator as is the "normal" way of boosting the cooling on a 996 as it means opening up the centre rad duct and this is really (REALLY) draggy hence keeping with two corner rads of a more effective design is more efficient from an aero point of view even if they are themselves more draggy than the standard rads due to the denser cores. Hopefully it'll still pull 7K RPM in top with them in
I'm also going to make some changes to the fuel system to support a touch more fuel capacity. There's not actually any reason why I can't just run a bag and use the shell as the "tank" so when I have a few minutes spare I'll draw something up accordingly. This will mean making a new fuel bag and new "false" floor in the nose but that's all pretty straight forwards. Aside from that it's due a clutch shortly as it's lifed so it will get all the normal slave, fork, release bearing etc. bits changed at the same time just to be on the safe side.
Depending which way you look at today is it's birthday. It left the line at Stuttgart just before 7AM on the 5th July 1999 and left the factory having had the none line bits done on the afternoon of the 21st. So it was either 17 on Tuesday the 5th or it's 17 today. Either way this is a car that was built last millennium, is still in daily use and continues to outperform a great deal of modern stuff. Whatever issues the later 996s had (and there were a few) I do have to tip my hat to Porsche for building this one.
Few more upgrades coming through as well during summer break. Firstly "hot and high" cooling can be an issue, especially in 30 degree+ ambient temps so I have decided to move to CSF radiators. I did look at having something made but to be honest the CSF rads seem to have a great reputation, are very well priced and the cost of having specific cores made to match the installation angle is pretty hefty so we'll see what they're like:
I'm not keen on going to a centre radiator as is the "normal" way of boosting the cooling on a 996 as it means opening up the centre rad duct and this is really (REALLY) draggy hence keeping with two corner rads of a more effective design is more efficient from an aero point of view even if they are themselves more draggy than the standard rads due to the denser cores. Hopefully it'll still pull 7K RPM in top with them in
I'm also going to make some changes to the fuel system to support a touch more fuel capacity. There's not actually any reason why I can't just run a bag and use the shell as the "tank" so when I have a few minutes spare I'll draw something up accordingly. This will mean making a new fuel bag and new "false" floor in the nose but that's all pretty straight forwards. Aside from that it's due a clutch shortly as it's lifed so it will get all the normal slave, fork, release bearing etc. bits changed at the same time just to be on the safe side.
So another quick update. CSF rads are in and I have to say are very good. Running temps reduced by around 10 degrees in a 30 degree ambient and coming through the tunnels in Paris on a hot day in traffic no longer requires a cool down run up to a steady high speed before getting on it.
The fit is extremely good, exactly like OE apart from they aren't handed and as such you only need to carry one as a spare should you wish to.
I've also upgraded from my old Evo 4 logger to the new Evo 5 which I am very impressed with, it's mounted in the nose unlike the 4 which was in the car and whilst this mounting position does compromise the yaw sensing etc. that's not something I am too concerned about in a road car! I'll be moving control of the fans and possibly the aux tank transfer pump to this in the near future as it has a couple of digital outputs on it for which you can create your own control strategies.
Aside from that it's well north of 300K now and still going strong.
The fit is extremely good, exactly like OE apart from they aren't handed and as such you only need to carry one as a spare should you wish to.
I've also upgraded from my old Evo 4 logger to the new Evo 5 which I am very impressed with, it's mounted in the nose unlike the 4 which was in the car and whilst this mounting position does compromise the yaw sensing etc. that's not something I am too concerned about in a road car! I'll be moving control of the fans and possibly the aux tank transfer pump to this in the near future as it has a couple of digital outputs on it for which you can create your own control strategies.
Aside from that it's well north of 300K now and still going strong.
Edited by poppopbangbang on Friday 26th August 20:43
Diesel Meister said:
And just using and enjoying what is a great car, whilst maintaining and improving it as steadily. Where is the "PH Paradigm" smilie, eh? 
I enjoyed reading this thread. Been over to Patric Morgan of Dawn Treader a few years ago. Love the engineering and he is into his bikes as well. I'm local to Bedford and have been at the aerodrome a few times doing bike track days. I would like to stop by for a coffee one day if you guys aren't too busy.
Heaveho said:
Hi, did you have prior knowledge of CSFs products? Just wondering what made you choose their stuff as an upgrade. Also a Porsche owner, so have a vested interest!
Yes I've used them previously on a race car with excellent results so knew what I would be getting. As said above for volume produced kit it is amazing quality and realistically will last the life of the car. There will also shortly be a proper UK dealer as at the moment they only place is D911 who order in from the states and as such it takes ages to get anything! They are a lot more than the pattern rads doing the rounds but they are pretty rubbish with less tubes than the OEM rads and even weaker end tanks. The OE Porsche rads are actually pretty good with regards cooling efficiency etc. when new but they don't last that long all things considered and obviously are still plastic end tanked. The CSF ones are similar money to OE Porsche so it's a bit of a no brainer really to use them.
So as a bit of a busman's holiday I did Pure Rally to Monaco in it the week before last.
2000 miles in 4 days was actually a pretty chilled out one for it although we did manage Monaco to Calais on a one stop on the return so that was a bit more like it! The range possible with decent fuel capacity, even at making progress speeds, is still really impressive.
For an old banger it gave an excellent account of itself and we had a lot of fun convoying with various far newer stuff including this white Gallardo which was an absolute peach and all credit to the guys with it as it was impeccably driven.
Still not sure the unsubtle stickers did anything for it but they certainly look a bit more race car and in motion looked the part:
As part of this years big service it also had a clutch as this was lifed out. RMS and IMS seal was changed at the same time as one or the other had started to weep a few 10's of thousands of miles before and changing both is the easiest option. Still no play in the IMS bearing at this mileage so that has stayed in, I'm pretty sure it will last the engine out and that's not because it'll be the thing that kills it
As a result of swapping the seals the oil consumption has dropped quite significantly. Over 2K miles it used around 625ml which is less than some when they were new! Still plenty of life in the old motor yet!
For those interested this years big service ignoring parts which were upgrades not service was:
- Plugs
- Coil Packs (changed every second year regardless).
- All filters including aux tank transfer filter, main fuel filter and a fresh BMC air filter.
- MAF (changed every second year regardless)
- Crank and Cam sensors (changed every second year regardless)
- Toe Arm sphericals (these seem to be quite short lived so this is pretty much an annual replacement)
- Dampers stripped, inspected and rebuilt (again every second year regardless) along with top mounts and all suspension joints inspected.
- Clutch, cover plate, release bearing, clutch fork and pivot (lifed at 100K) along with RMS and IMS cover plate seal.
- Oil and filters obviously (this engine carries 9.25L of oil at full vs 8 - 8.25 for a standard M96)
- Everything else was inspect and check and was all good bar a couple of clips and fasteners that were looking worse for wear and were replaced.
Not a lot planned for it really aside from general service. I may go to floating front discs at some point, probably when I move to fresh hubs, as there is some run out somewhere in the front setup that requires the discs skimming on the car to achieve true running through the caliper. On standard size discs it probably wouldn't be all the noticeable and coupled with the fact that the front hubs are original it's fairly forgivable. Aside from that I'm just going to keep banging miles onto it because it seems to get on quite well with that MO
2000 miles in 4 days was actually a pretty chilled out one for it although we did manage Monaco to Calais on a one stop on the return so that was a bit more like it! The range possible with decent fuel capacity, even at making progress speeds, is still really impressive.
For an old banger it gave an excellent account of itself and we had a lot of fun convoying with various far newer stuff including this white Gallardo which was an absolute peach and all credit to the guys with it as it was impeccably driven.
Still not sure the unsubtle stickers did anything for it but they certainly look a bit more race car and in motion looked the part:
As part of this years big service it also had a clutch as this was lifed out. RMS and IMS seal was changed at the same time as one or the other had started to weep a few 10's of thousands of miles before and changing both is the easiest option. Still no play in the IMS bearing at this mileage so that has stayed in, I'm pretty sure it will last the engine out and that's not because it'll be the thing that kills it
As a result of swapping the seals the oil consumption has dropped quite significantly. Over 2K miles it used around 625ml which is less than some when they were new! Still plenty of life in the old motor yet!For those interested this years big service ignoring parts which were upgrades not service was:
- Plugs
- Coil Packs (changed every second year regardless).
- All filters including aux tank transfer filter, main fuel filter and a fresh BMC air filter.
- MAF (changed every second year regardless)
- Crank and Cam sensors (changed every second year regardless)
- Toe Arm sphericals (these seem to be quite short lived so this is pretty much an annual replacement)
- Dampers stripped, inspected and rebuilt (again every second year regardless) along with top mounts and all suspension joints inspected.
- Clutch, cover plate, release bearing, clutch fork and pivot (lifed at 100K) along with RMS and IMS cover plate seal.
- Oil and filters obviously (this engine carries 9.25L of oil at full vs 8 - 8.25 for a standard M96)
- Everything else was inspect and check and was all good bar a couple of clips and fasteners that were looking worse for wear and were replaced.
Not a lot planned for it really aside from general service. I may go to floating front discs at some point, probably when I move to fresh hubs, as there is some run out somewhere in the front setup that requires the discs skimming on the car to achieve true running through the caliper. On standard size discs it probably wouldn't be all the noticeable and coupled with the fact that the front hubs are original it's fairly forgivable. Aside from that I'm just going to keep banging miles onto it because it seems to get on quite well with that MO
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