I had this same thing happen many years back when I had just install my FMII kit.
Call FM and told them way happened and ordered the 323 PVC valve and problem solved.
I little oil coming from the dip stick can make a freakin mess.
-------------- Original message from [EMAIL PROTECTED]: --------------
> Also posted on m.net: http://forum.miata.net/vb/showthread.php?p=3252172
>
> So I was @ ButtonWillow this weekend.
> The drive down from the bay area(5.5 hour trek towing my HF trailer) was uneventful, but after my first warmup lap Saturday morning I started to lay into it and after about 1.5 laps a huge plume of smoke blasted out from behind me. At first I thought maybe it was a coolant leak at one of the heater hoses(vaporizing on the hot downpipe), but then I smelled burning oil. I got off line and slowed way down, but didn't see any oil drops or a trail behind me, but
> I stayed off line the rest of the way around to the pits anyhow.
> So I pop my hood and my oil dipstick was sticking up about 2 inches with oil blasted all over the damn place - frickin mess. I let it cool down and used about 1/4 roll of blue towels to clean everything up. I then thought "hmm, perhaps the SS wool I stuffed in the valve cover baffling was inhibiting proper
> crankcase ventilation?" I didn't see how it was an issue NOW, after about 5k
> miles and several track events, but I took it off and spent the rest of the
> morning removing the SS wool and resealing the valve cover baffle plates and
> then reinstalling the valve cover. Also, my oil catch can was 1/2 full of oil(it
> was bone dry before the drive down to BW).
>
> So fingers crossed I go out again & the same damn thing happens . I pulled the
> plugs and the tips were all clean(no oil).
>
> Then I thought maybe the 3psi boost spikes(saw a few up to ~18psi) were causing
> it so Sunday morning I just disconnected the EBC entirely ran off the stock
> wastegate. SAME THING happened after 2 hard laps, oil blew out the dipstick tube
> and my catch can was 1/2 full of oil too. I called it a day and drove home VERY
> gingerly, staying completely out of boost(driving ~55mph all the way - the limit
> since I was towing anyhow).
>
> So after about 100 miles I stopped for gas and checked my oil catch can - it was
> TOTALLY FULL ! I stopped every 40-50 miles from then on and each time it was
> nearly 1/2 full. The good news is at least oil didn't puke all over my engine
> bay again. The bad news is I have NO friggin idea WTF the problem is...
>
> The engine sounds and feels fine, but I am at a loss.
>
> Any ideas?
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