944 engine oil for track days..
Discussion
Hi all, just been to Oulton park in my standard (apart from wheels and rear camber) 85 944 8 valve, and the car was fantastic. Ran faultlessly and was mighty under braking and over the kerbs.
However! at 6000 rpm the oil pressure dipped to 3 (I checked this when I was passenger I hasten to add!)and it's usually 5 at 2000rpm. The car's running 10/40 Magnatec (also used in my 88 944S) , which presumably got way too hot.
No oil was lost, but I presume I need an oil which works better at high temperatures. Sounds like I need an oil cooler, but can anyone recommend a better 'competition' oil?
In addition, do you know if Turbo anti roll bars and bushes bolt straight on? I understand 968 bars are slightly different.
However! at 6000 rpm the oil pressure dipped to 3 (I checked this when I was passenger I hasten to add!)and it's usually 5 at 2000rpm. The car's running 10/40 Magnatec (also used in my 88 944S) , which presumably got way too hot.
No oil was lost, but I presume I need an oil which works better at high temperatures. Sounds like I need an oil cooler, but can anyone recommend a better 'competition' oil?
In addition, do you know if Turbo anti roll bars and bushes bolt straight on? I understand 968 bars are slightly different.
I use Mobil 1 15W50 damned expensive admitedly, but its never lost pressure at high revs and that is during track day abuse and fast road driving.
Thing is it may not be the oil, it might be a fault with the pressure guage or sender. Or maybe your oil pressure relief valve has a week spring ? I trust you are also keeping a sharp eye on the oil level through out the day when track driving ?
Edited to add, the watercooled oil cooler thing can also leak and is another none point that could be letting you down, possibly.
>> Edited by interloper on Friday 30th April 20:31
Thing is it may not be the oil, it might be a fault with the pressure guage or sender. Or maybe your oil pressure relief valve has a week spring ? I trust you are also keeping a sharp eye on the oil level through out the day when track driving ?
Edited to add, the watercooled oil cooler thing can also leak and is another none point that could be letting you down, possibly.
>> Edited by interloper on Friday 30th April 20:31
I have just found out that you can buy oil in bulk from vauxhal garidges. If you know someone who is in the vauxhal club thingy its even cheaper.
Ive just bought 25 litres of 5-40 fully synthetic for £60 but they do a long life fully synthetic 5-40 for around £40.
they do a Semi synthetic for around £25 fo 20 litres.
Dug out a copy of Fast road and track day magazine, (yes duff mag I know) but it has an article on track preped 944's. Both cars were early 2.5 8vs, they were basicaly rental track day cars and as such were prpared with roll cages, striped interiors, bucket seats and S2 alloys. To keep things simple they retained the original 2.5 engines in stock tune but had larger (S2 again) radiators and an aftermarket oil cooler instaled due to high oil temps.
Maybe a seperate oilcooler might be a good idea if there is nothing actualy wrong with your engine ?
Maybe a seperate oilcooler might be a good idea if there is nothing actualy wrong with your engine ?
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