lukits01 wrote:that's what I've been told time and time again, but has anyone here actually suffered fatal oil surge?Yes, several people on here have. Here's one guy - donald. The circumstances were as I described - semi slick tyres and long bends
I'd like to know the circumstances...
Here's what I find peculiar, DC5 one-make race in Japan, doesn't use baffled sump, but they are fine.
JAS motor sport FN2 Gr.R package, does not come with baffled sump.
http://www.civictype-r.co.uk/forum/view ... 17&t=95244
Also a post from scuffers who races K20-engined Lotus Elises (I highlighted the important bit in bold):
Scuffers wrote:I can see your point about the Mugen one, what's that supposed to do?
not 100% impressed by the spoon one either, they seem to have missed the point of what happends in a sump, it's about looking at where the oil drains down into the sump and how to keep it from running off to the sides as anything.
this is another 'interesting' design (this came out of an engine that died due to oil starvation)
problem with this type is how the oil is supposed to get into the 'box'?
when looking at designes, remeber the oil pump is rated at some 55l per minute (@6000 Rpm), this means it takes some 6 sec's for it to pump the entire oil contents of the engine, thus unless you have a very effective way of returning oil to the pickup, you can get into starvation VERY quickly.
Other point to mention is that there is no such think as a perfect sump baffle(s), at the end of the day, you are still relying on gravity to get the oil back down the engine (from the head), and once the side loads get up to a point, this will just not happen effectivly. That said, in the testing I have done on this with my race car (Elise) baffles are effective to the limit's of the car's grip.













