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Last seen: 6 days 12 hours ago
Joined: 09/12/2021
Oil Catch Can

Hello, my first post here and looking for advice. 

I part-own a 2012 ex-Academy car which is used mainly for track days. The engine is still standard Academy spec, although there are other modifications to the car.

We did 5 track days last year and a few hundred road miles. Over this time we had minimal oil collect in the catch can (which surprised me), however, following a day at Silverstone this Monday the can is now around 20% full. 

Could anyone advise on what is "normal" here?

Thanks in advance


Beagler's picture
Last seen: 12 hours 50 min ago
Joined: 24/07/2021

Either engine over full or too much piston blow by leading to excessive crankcase pressure ie engine knacked.

2019 310S 1.6 Sigma

paul richards
Last seen: 1 hour 42 min ago
Joined: 17/04/2014

Have you topped up the oil before Silverstone? Sigma race cars tend blow out oil until it is minimum on dipstick. 
Check your oil and if it's on minimum or above I wouldn't worry. 

Paul Richards

LADS Joint AR  Drink

I thought 2020 was the year that was going to give me all I wanted. It turned out to be the year to make me appreciate what I've got.

Last seen: 16 hours 42 min ago
Joined: 17/04/2014

If it's not putting oil out on the road I wouldn't worry too much. It's quite normal to blow out quite a bit of oil in a heavy track session, that's why track cars have catch tanks fitted after all. Constant red-line with full throttle and heavy G-forces will result in gases and oil going where they don't normally go.

SV VVC 170 - 170.4 bhp @ 7100 rpm - 142.4 ft.lb. @ 4900 rpm

GulfSeven's picture
Last seen: 14 hours 45 min ago
Joined: 28/12/2020

Are sigma race cars much different to 310Rs? Mine doesn't seem to collect any more oil than normal on a track day.


Gulf Racing 310R