2005 Wrx Sti Oil Pan/Starvation

[Mitch-v10]

Hey guys, i currently have a 2005 wrx sti v10.

I've just bought some new Hankook Ventus z214 semi slicks which are r rated.

I do a lot of track days at ruapuna and was wondering if you think ill have problems with oil starvation?

Cheers

[boon]

Semis will exacerbate any existing problems you're having. I'm not really familiar with Ruapuna but one has to assume the big sweeper would be a prime spot for it.

There's a lot of approaches people take - overfilling, running a baffled sump, things like that. At the very least you probably want to change to a plumbed-back catch can setup so that you don't dump oil into the intake if it get slurped up a breather.

[Richwalk]

I would look at a baffled sump. KillerB do one, and Possum Bourne motorsport will modify your one pretty cheaply.

http://www.killerbmotorsport.com/index_files/OptimalOilPan.htm

www.possumbourne.co.nz/products.html

PBMS also advised against overfilling and as boon said, it can get into the intake and cause detonation.

Edited December 3, 2014 by Richwalk

[Mitch-v10]

my motor is a fully forged setup, from what ive heard everyone has opinions on this. would overfilling it slightly help? also my next track day is this monday so dont have time to get a baffled sump!

[Guest]

Or put a tap on the breather effected by the sweeper. $2 from bunnings I would imagine.

[Richwalk]

Baffled sump is 2 day turnaround from PBMS.

[Mitch-v10]

I dont think it will be here by Sunday morning

[chulozumo]

 Richwalk said:

Baffled sump is 2 day turnaround from PBMS.

Ahaha. Depending on time of year and their work load!

Macbilt in Wellington make a great one if you are looking at spending a k or so on a baffled and its made local! Multiple members use them including me with no issues.

Oh and im just down the road and could powder coat it for you

[GC8E2DD]

 Richwalk said:

PBMS also advised against overfilling ...

Is that the official PBMS advice, or one guys opinion? The reason I ask is that around the paddock, down the clubrooms, at the pub, in every garage, and in my own experience of always running 5 litres (except prior to running a bearing at Manfeild when I didn't), the advice is the opposite. Yes you might get some oil vapour in the intake, but stock Subarus also run very rich.

[Timmah]

Are you going to the trackday on Monday?

[Tony]

The Hankook Z214, while a DOT rated tyre, is basically a full slick with 2 grooves around it, and a lot better (grippier) than what I would class as a "semi slick" with actual tread pattern. I have spoken with a few people who have raced on these tyres as well as the Hankook F200 full slick and they say there is virtually no performance difference, so personally, I would be fairly cautious on using these with a standard sumped Subaru (of course this is dependant on your particular driving style and how capable/set up your car is as well).

Do you have a decent aftermarket ECU in the car? (ie: Link G4) - if so, then I would suggest fitting an oil pressure sensor and having a limit table set up that will activate a limiter to save the engine if oil pressure starts to drop. That is something that can be easily sorted before your track day on Monday. Just requires a sensor, a bit of wiring, and configuring settings in the ECU... if you are in Christchurch, then you could see if NZEFI could do the job for you.

[Marky]

 Timmah said:

Are you going to the trackday on Monday?

"also my next track day is this monday so dont have time to get a baffled sump!"

Ti-ti-ti-timmmmaaaaaah

[Timmah]

 Marky said:

"also my next track day is this monday so dont have time to get a baffled sump!"

Ti-ti-ti-timmmmaaaaaah

Mah bad guys.

Cool, see you Monday! I'm not racing, but I'm helping.

[Mitch-v10]

Ill give it a go, not to concerned if my car ****s itself, just another excuse to do another build! I have installed an oil pressure light so should give me some indication of oil pressure anyway!