Speed 6- oil cooling

[blueyes]

Back from a month in Italy and I had problems with the oil temp (even though it had just been serviced) Kept getting an oil temp warning if I booted it for more than about 15 mins. I had the same happen last year but I put it down to the weather being incredibly hot (39+ on some occasions)This year it was much cooler (28+) but the same thing happened. Great! So I take the car somewhere where I can go fast and the bl00dy thing won't let me!!!!



Anyway, I questioned someone who has a lot of experience with this engine and they said:

"the engine is not suited to the temperatures encountered in southern europe. The oil cooler fitted is cooled by the water from the cooling system. When the water gets hot the oil cooler is very inefficient. The only way to cure this is to fit an air-cooled oil cooler. It's easy and there's enough space under the bonnet to fit it"

Couple of questions:

1. anybody else had this problem abroad?
2. why is this oil cooling system used on the speed 6 when the alternative is cheaper, simpler and more efficient and a standard fit on most high performance cars?
3. any other comments?

[VYT]

blueyes said:

The oil cooler fitted is cooled by the water from the cooling system. When the water gets hot the oil cooler is very inefficient.

Maybe this approach warms the oil more quickly as well? We are told this is really important for the S6.

Never seen more than 87 even at a track day. I guess that's only short runs though.

[blueyes]

VYT said:

blueyes said: The oil cooler fitted is cooled by the water from the cooling system. When the water gets hot the oil cooler is very inefficient. Maybe this approach warms the oil more quickly as well? We are told this is really important for the S6. Never seen more than 87 even at a track day. I guess that's only short runs though.

Thanks for the comments.

If the oil cooler is controlled by a thermostat (i.e. only when hot) it wouldn't make any difference.

Also I assume the trackday was in the U.K so the outside temps would be lower.

[andyvdg]

Not had this problem on the Tuscan. There was a thread recently about a T350RR getting too hot after 15 minutes on the track - is yours standard ? Also are you running super unleaded - allegedly enables cooler running.

Cheers,

Andy.

[sacha]

mine runs in the 90's but never into the 100's. talked to the dealer about this and they said if it goes above 100 then let it cool. sub 100, there is nothing to worry about.
The later engine have a revised oil/cooling system letting them run hotter as the earlier engines ran very cool, my tuscan had problems running above 60.
so if under 100 no woories, Blueyes, what temp was yours reaching?

[VYT]

blueyes said:

If the oil cooler is controlled by a thermostat (i.e. only when hot) it wouldn't make any difference. Also I assume the trackday was in the U.K so the outside temps would be lower.

Yup trackday was pretty cool , around 20C. Have been stuck in traffic in the high 20's but still never saw water above 96C or oil above 87C.

No idea if the oil cooler is on a thermostat. Always assumed not. Is there a separate oil cooling circuit running in parallel to the dry sump circuit?

[blueyes]

I was running Optimax and the oil temp reached about 107. The water wasn't happy either but a few days later the water sensor packed up so I couldn't tell the temp now. Back in the u.k the oil is running at about 90 at worst.

My nearest dealer is now 2 1/2 hours away in Cheltenham (thanks TVR!) so it'll have to wait until the next service.

Edited to add: Yes it's standard

>> Edited by blueyes on Thursday 29th July 18:20

[sacha]

you may have a doddgy sensor, most of mine need changing at the next service, water temp, oiltemp................!