Oil Sump

[Duncan]

rb26dett, its just a gamble.

I thrash my car round the track all the time, engine's never blown up.

OzGTR97V blew his up at EC one day.

I wouldn't suggest there is a hard and fast rule, this is just about minimising the chance of a problem.

[rb26dett]

what's ec?

[Silver-Arrowz]

eastern creek

[Duncan]

lol, sorry, Eastern Creek in sydney. I guess I'm just trying to say some ppl are lucky...some aren't

[Steve]

I 'believe' that this problem is more a GTR one (although GTSts can have it too) becuase of the front wheel drive? Could be wrong - anyone know for sure?

Steve

[Blitz]

I dont think Rb25DET's are as vulnerable to the same degree at the RB26DETT's - dont quote me on that though.

Mark at Unique Autosports fits loads of GTR's with the Nismo and Tomei Sump Baffles and will hopefuly be fitting mine in the coming weeks.

[Guest drift_me_silly]

can anyone here explain in basic principle the dry sump system?

[ed]

http://auto.howstuffworks.com/question331.htm

[Guest drift_me_silly]

yeah good site thanx ed i'll remember to warm up my frontal lobe b4 posting again...

[Sydneykid]

Hi guys, I haven't seen a GTR with standard (road) tyres have any problems with oil surge on a racing circuit. It's when you start puting "R" type tyres or slicks on that the G forces go up enough to cause the oil to surge up one side of the sump and the oil pump pick up to get a lung full of air.

I never seen a 2wd Skyline have a problem with oil surge, even on "R" type tyres. Looking at the sump design of the 4wd versus the 2wd it is easy to see why the 4wd's have the problem. It's flatter, longer, wider and has a drive shaft going right through the middle of it.

We run a baffled sump with side wings and one way doors on both the GTR (alloy, 6.5 litres) and the GTST (mild steel, 7 litres). Performance Metalcraft did the work.

Both have oil coolers for cooling purposes only ie; they don't add anything to the oil surge prevention.

If you are contemplating taking your 4wd Skyline onto the circuit then I would suggest that;

1. Only do it on road (not "R" or slick) tyres

2. Check the oil level regularly and make sure that it is right up to or slightly over the full mark at all times

3. Restrict yourself to 2 or 3 laps of flat out

4. Watch the oil temperature

Hope that helps.