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Lonismos14
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So i was driving the 240 tonight on the highway, (just finished my coolant issue) and every thing was going fine boosting good. And then on my way backi notied i was not getting any boost.

So i pulled over and noticed oil coming out of my air filter. Probaly half or quater of a cup ok it was alot. So i fried my maf and switch to my other maf. But the idle was horrible me and well my friend is going to be doing a compression test tommorow.

So my question is why would oil be coming out of my intake filter.

Currently The timing is at fifteen degrees. And here is the rest of my setup.

[QUOTE=Techsalvager]By techsalvager, shot with COOLPIX L18 at 2010-04-04By techsalvager, shot with COOLPIX L18 at 2010-04-04By techsalvager, shot with COOLPIX L18 at 2010-04-04


Techsalvager
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I just got to thinking what it maybe, ring lands could of gone in the last run and boost got past them into the motor into the head and got postive crankcase pressure and pushed the oil into the breather tube into the piping infront of the turbo inlet and maf.

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Lonismos14
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We will find out tomorrow. kinda sucks though if thats the problem.

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Thaddeus
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If your really using duct tape as your oil cap, as the pictures suggest, I would start there.

Techsalvager
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Car: 1992 Mazda Miata

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Thaddeus wrote:If your really using duct tape as your oil cap, as the pictures suggest, I would start there.
no the duct tape was only there for a day to do a compression and startup test and has nothing to do with current problem.

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Chris28
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Maybe you blew the compressor side of the turbo. Unlikely, but it's possible. Your feed line looks awfully large.

How is your PCV system setup? The only place oil could have come from is either the turbo or your valve cover, and the only reason oil would come out of the valve cover is if you got positive head pressure.

Techsalvager
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Chris28 wrote:Maybe you blew the compressor side of the turbo. Unlikely, but it's possible. Your feed line looks awfully large.

How is your PCV system setup? The only place oil could have come from is either the turbo or your valve cover, and the only reason oil would come out of the valve cover is if you got positive head pressure.
Yeah I was thinking about that as well. I'm not sure if lonismo has a restrictor on it or not or the turbo has one built in or not. Gonna run some tests and check.Compression to see if anything is off first.

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Lonismos14
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Sorry im all thought out i keep getting headaches , just thinking about this car all day.

Im not going to keep over spilled milk though. It might just be time to go forged. That way i can break everything down (stupid intake manifold).

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Chris28
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As told to me by a knowledgeable KA-T moderator, forged pistons aren't that much better than stock pistons. They can withstand it for a bit longer, but any prolonged detonation will destroy the ring lands on any pistons.

The KA's manifold is very well designed, as long as you take the right precautions when boosting. You need to take care of the PCV system if you plan on running excess amounts of boost.

You should re-think your setup. As far as I know you're still automatic, which means you aren't using the tuned ECU. FMU's are reliable for small amounts of boost, but I recall you talking about over boosting so you aren't taking it easy with this engine. Do things right the first time and you won't be encountering all of these problems.

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DevilMB3017
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Your crankcase vent is hooked pre-turbo?

That's probably where it's coming from...

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Lonismos14
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Chris28 wrote:As told to me by a knowledgeable KA-T moderator, forged pistons aren't that much better than stock pistons. They can withstand it for a bit longer, but any prolonged detonation will destroy the ring lands on any pistons.

The KA's manifold is very well designed, as long as you take the right precautions when boosting. You need to take care of the PCV system if you plan on running excess amounts of boost.

You should re-think your setup. As far as I know you're still automatic, which means you aren't using the tuned ECU. FMU's are reliable for small amounts of boost, but I recall you talking about over boosting so you aren't taking it easy with this engine. Do things right the first time and you won't be encountering all of these problems.
Yes im still automatic but i have a tuned emanage, and the wideband is showing good numbers so far nothing is wrong with the setup. It was overboosting it went to 10 psi like probaly 6 or 7 times because of the wastegate line.

Now i think its possible that the seals on the turbo is gone. From not running a restrictor.

Techsalvager
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lolipop lolipop oh loli loli

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Doya
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DevilMB3017
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DevilMB3017 wrote:Your crankcase vent is hooked pre-turbo?

That's probably where it's coming from...
I'd like to add to this that stock KA24DE timing is 20*BTDC, no?

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Chris28
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DevilMB3017 wrote:
I'd like to add to this that stock KA24DE timing is 20*BTDC, no?
Correct.

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Lonismos14
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Damn this new layout is crazy.

For anybody interested the setup is for SALE. :cry:

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Chris28
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I'll give you 100 bucks for the 550cc's.

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Lonismos14
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Chris28 wrote:I'll give you 100 bucks for the 550cc's.
Nope. :shock:

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WDRacing
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Lonismos14 wrote:Damn this new layout is crazy.

For anybody interested the setup is for SALE. :cry:
Giving up already?

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Lonismos14
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Im afraid yes, this will be my third time tearing into this block, and to be honest im just tired of it.

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WDRacing
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I hear ya dude....gets frustrating doesn't it? I've been getting my a** kicked as well on my supercharger build. I may resort to just going back to the turbo instead of the charger. I don't have the funds to complete it correctly and I really don't wanna half a** anything.

So just so I understand, you popped a piston?

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Lonismos14
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I believe so the compression test reads 0, 190,100,190.
BTW if you do go back turbo, if theres anything i have that you need LMK. If it is not sold already, i will sell it to you for very little or nothing just because you help me out through this whole process. It kinda makes me sad to quit on the project, but i have put in alot and the return is just not there anymore.

Techsalvager
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Car: 1992 Mazda Miata

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So just so I understand, you popped a piston?
Can't be for sure, could be rings or could be part of a valve, valve head or stuck valve, removing the head is the only way to know what happened for sure.

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Lonismos14
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Techsalvager wrote:
So just so I understand, you popped a piston?
Can't be for sure, could be rings or could be part of a valve, valve head or stuck valve, removing the head is the only way to know what happened for sure.
Yup but im not even going to try to figure it out the compression results was all i needed to confirm that its time to move on. Hey maybe we can drop the ka in the miata.

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WDRacing
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Better to supercharge the stock Miata motor. I drove a charged Miata over on Okinawa...out of control fun to drive.

Thanks for the parts offer homie, I'll let you know if I need anything.

WD


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