AirCooledExcellence Posted October 13, 2008 Share Posted October 13, 2008 Mate, I don't think the SC cooler will cut it, IMO a late 3.2 cooler with fan is the minimum requirement. Without the fan on mine it would start to get scary hot if stuck in traffic Link to comment Share on other sites More sharing options...
Tripe Posted October 13, 2008 Author Share Posted October 13, 2008 ACE, up here being stuck in traffic means being held up in a queue of traffic behind a tractor. Point taken though, not sure if Martin (MRG3.6) had the cooler uprated on his SC when his conversion was done all those years ago. Link to comment Share on other sites More sharing options...
AirCooledExcellence Posted October 13, 2008 Share Posted October 13, 2008 Yeah, chances are you'll be OK but it wasn't fun when I got stuck on the M1 in the summer. I had to get off ASAP to find clear roads for a cool down. I think Martin upgraded his to a B&B cooler? Link to comment Share on other sites More sharing options...
jevvy Posted October 13, 2008 Share Posted October 13, 2008 Jev, I have a new RMS to fit, any one got the special tool for pushing it in? No mate - I used the old seal flipped over(flat face to flat face) to tap the new seal in, went in nice and square and I went a tiny bit further in than the one I took out so the sealing lip was on a clean unexposed part of the crank and not a gammy bit that had been "outside" all its life. From what I read add a bit of oil to the inner lip(the bit that touches the crank) but keep the outside of the seal and the case recess dry. Link to comment Share on other sites More sharing options...
carlbon Posted October 13, 2008 Share Posted October 13, 2008 We have the late type SC cooler, i.e not a trombone. Is that the brass pipe one Tripey? I read somewhere that type is better than the non-fan assisted 3.2 radiator as it's less dependant on air flow Anyone had any experience? Link to comment Share on other sites More sharing options...
Tripe Posted October 13, 2008 Author Share Posted October 13, 2008 Yes mate, that's the one. Looks like a load of stair rods. Plenty of surface area and not prone to getting blocked up with debris. Link to comment Share on other sites More sharing options...
Richard Bernau Posted October 13, 2008 Share Posted October 13, 2008 Is that the brass pipe one Tripey?I read somewhere that type is better than the non-fan assisted 3.2 radiator as it's less dependant on air flow Anyone had any experience? That is certainly contrary to my understanding. I have said this before, but you are well light on cooling even with a 3.2 radiator style cooler as you are ditching the engine cooler. Thank god for the UK weather. Link to comment Share on other sites More sharing options...
carlbon Posted October 13, 2008 Share Posted October 13, 2008 That is certainly contrary to my understanding. I have said this before, but you are well light on cooling even with a 3.2 radiator style cooler as you are ditching the engine cooler. Thank god for the UK weather. Check out p.61 of Bruce Anderson's 911 Perf Handbook Paraphrasing a little he says 'For US driving purposes the brass cooler was probably the best cooler... The radiator type cooler that replaced it was very dependant on air flow and really didnt work well on US cars with our slow speed limits' Link to comment Share on other sites More sharing options...
mrg3.6 Posted October 13, 2008 Share Posted October 13, 2008 ACE, up here being stuck in traffic means being held up in a queue of traffic behind a tractor. Point taken though, not sure if Martin (MRG3.6) had the cooler uprated on his SC when his conversion was done all those years ago. Hi Tripe, Yup ACE is correct I installed a B&B cooler 'all those years ago' - nice bit of kit, beautifully made and has done everything from a 'very hot' drive to the (first) Malaysian Grand Prix, the Le Mans 'traffic jam' thing and 'off the clock' trying to keep up with Matteo on the way to the Ring. You should have saved yourself all this trouble and bought mine mate Martin Link to comment Share on other sites More sharing options...
Tripe Posted October 13, 2008 Author Share Posted October 13, 2008 How much? Link to comment Share on other sites More sharing options...
MrPerkles Posted October 13, 2008 Share Posted October 13, 2008 How much? Tripe give James Lister motorsport in West Brom a call they are main dealers for Setrab and have been cheapest by far for all the bits ive needed for my car www.lister.co.uk Link to comment Share on other sites More sharing options...
mrg3.6 Posted October 13, 2008 Share Posted October 13, 2008 Tripe give James Lister motorsport in West Brom a call they are main dealers for Setrab and have been cheapest by far for all the bits ive needed for my car www.lister.co.uk ........and don't forget those 'widemouth' oil fittings from Elephant Racing: http://www.elephantracing.com/oilhandling/...thoilcooler.htm Martin Link to comment Share on other sites More sharing options...
mrg3.6 Posted October 13, 2008 Share Posted October 13, 2008 How much? If you mean the B&B oil cooler then I reckon that with the fan kit they must be running at over a $1000, however if you mean the trusty old 3.6SC then you'll need to wait until the spring as my 72t is presently at Bob Watsons having the 'strange' high throttle effect MFI set-up returned to a more conventional 'compressed' 2.7RS 'twin plug' spec in the vague hope that I can actually drive the beast at less than 70mph. Martin Link to comment Share on other sites More sharing options...
Tripe Posted October 16, 2008 Author Share Posted October 16, 2008 Hmmm $1000 for the oil cooler, that's got to be worth more than the old SC now we're being credit crunched eh Martin? My ducks were nicely aligned today. Mrs T was away for the harvest festival, so whilst the cat's away..... I hooked up the jet washer to the hot tap on the bath. I'd been up to the local farm suppliers first thing, they had tractor cleaner on special offer, £13 for 5 gallons of the stuff. So that was connected up to the jet washer as well to give the gearbox a good blasting. Half an hour later and she's nice and tidy. We've tried the POR Marine Clean on jobs like this before, but the tractor nectar is a fifth of the price and just as good so I reckon that's the way forward for me. It's one of the tightest 915 boxes I've ever driven (rebuilt about 30,000 miles ago) so this time around I'm going to limit the work to new mounts, notching the case to accommodate the flywheel sensor, replacing the shaft seals and refilling her with Swepco. If it turns out that the 3.6 power is a bit too much for it then I'll look out for a late 3.2 Carrera box with the external oil cooler and have it rebuilt/strengthened to suit. Whilst the gearbox was getting a good steaming the flywheel was in the oven at gas mark 8 (not quite sure that Mrs T would approve of this carry-on either, hehe). It's a Patrick Motorsports flywheel, specially made for a 3.6 conversion with the cut outs around the circumference for the speed sensor. Thanks to a tip off from Jev I picked this new one up on eBay UK for about half the price of one landed from the States. The pilot bearing was bought new from Porsche, the workshop manual recommends using a press to push it in to the flywheel. Not got one of those, but we do have a freezer. So last night the little pilot bearing bedded down amongst the golly gosh rogan josh for chilly night's rest. After an hour in the oven the flywheel had expanded nicely and the frosty bearing plopped in without any fuss. After that the engine compartment got the obligatory clean up. Then I dropped the oil system to make it easier to clean it all up and get a spanner on the oil line nuts. The tank is in great shape and will get a lick of the POR paint. The only downside to the day was finding that some wise guy had at some stage wrapped the elbow on the oil lines in foam rubber to prevent chafing against the chassis. Result: permanent damp mud trap. Consequently the bottom of the kidney has rusted through and the bottom of the rear wing dogleg has blistered under the sill cover. One more little winter job to sort. Link to comment Share on other sites More sharing options...
johndglynn Posted October 16, 2008 Share Posted October 16, 2008 I am loving the domestic pics mate. Shame about the kidney. That is good value TFR - I pay £29 for 25K of the non caustic stuff. If that is caustic just watch it on the ally parts - lots of clean water to rinse it all away. Link to comment Share on other sites More sharing options...
AirCooledExcellence Posted October 16, 2008 Share Posted October 16, 2008 Hee hee nice work mate Nice selection of Mr Dave curries as well ** EDIT ** Don't forget to notch the transmission so it clears your flywheel sensor Link to comment Share on other sites More sharing options...
MrPerkles Posted October 16, 2008 Share Posted October 16, 2008 oo0o man look at all that curry ,when am i coming round to help you fettle Tripe my taste buds are quivering Link to comment Share on other sites More sharing options...
Derek Posted October 17, 2008 Share Posted October 17, 2008 Nice work. Link to comment Share on other sites More sharing options...
heckschleuderer Posted October 17, 2008 Share Posted October 17, 2008 Finally some pictures of how house appliances should really be used. Link to comment Share on other sites More sharing options...
jevvy Posted October 17, 2008 Share Posted October 17, 2008 Looking good - should have it nailed in a few weeks at this rate Link to comment Share on other sites More sharing options...
Nige Posted October 17, 2008 Share Posted October 17, 2008 'wham bam balti' where the hell do you shop? Link to comment Share on other sites More sharing options...
Tripe Posted October 17, 2008 Author Share Posted October 17, 2008 Daisy Freezer centre Nige. That curry really is the nuts. 40 mins in the oven from frozen and it's better than most takeaways. Link to comment Share on other sites More sharing options...
oliverjamesthomas Posted October 17, 2008 Share Posted October 17, 2008 So you like a curry or three then, Tripey boy? Good work mate. This is going to be a hell of a car Link to comment Share on other sites More sharing options...
Richard Bernau Posted October 17, 2008 Share Posted October 17, 2008 Check out p.61 of Bruce Anderson's 911 Perf HandbookParaphrasing a little he says 'For US driving purposes the brass cooler was probably the best cooler... The radiator type cooler that replaced it was very dependant on air flow and really didnt work well on US cars with our slow speed limits' I think BA is in a minority if he is rating the brass cooler over the rad style cooler. From his quote, I think you might still conclude that a radiator with a fan is probably the best cooler. Rad style coolers is certainly the direction Porsche went in cooling progressively bigger and more powerful engines and on the 3.6s they took it a step further with a bigger cooler and much more carefully managed airflow through the cooler. The brass pipe and trombone coolers don't benefit so much from increased airflow whereas the 3.2 coolers do - that I agree with. Ditching the fog lights, a bigger notch in the bumper, sealing the underside to force air through the cooler are all useful improvements with a rad cooler but less so with the others. RB Link to comment Share on other sites More sharing options...
Von Twinzig Posted October 17, 2008 Share Posted October 17, 2008 The turbo has a standard 3.2 rad fitted with a new foam seal. It runs with a fan, lower temp sensor and air scoop (replacement for the o/s quarter bumper rubber) + fog light delete and it's fine. Even in traffic queues it never gets above half way, and in normal driving never above the first mark. Link to comment Share on other sites More sharing options...
Recommended Posts