FormulaBoat

iTrader: (1)

I love King bearings, but have never had any fail from any maker. Yours are toast. Do you have the main bearing caps all orientated correctly? All the numbers don’t face the same way, and most bearing lock tabs go opposite of each other, not same side like a SBC 350 engine. I just learned this myself.

I also think your your oil is a little thick, but it should not cause this. Bearing failure twice, something is wrong. You running oil pump spacer blocks for double row timing chain? Heard those can be installed wrong.

steves86ta

iTrader: (5)

Well... I got home from working out of town and started cleaning parts up... I think i found a main contributor or possibly the root cause of my problem.

I'm sharing this in hopes that it helps someone in the future...

I pulled off my ICT Billet side plate that i used to feed my Oil PSI gauge and one of the turbos. when i inspected it i found that the fitting i used for the 1/8npt to -4an for the oil feed threaded in way to far and seriously cut off the oil flow on this plate.

Kind of hard to see in the picture, but you can kind of see it.I added another picture showing where a normal 1/8 npt plug tightens up at.

s30.hybrid

iTrader: (3)

Ah crap I hadn’t seen that one in a while. That sucks!

G Atsma

That WOULD be an issue! Looks like quite a restriction. Good you caught it!

JoeNova

The stock ones with the untapped port work better than those aftermarket ones. They are already the exact size needed for a 1/8 NPT tap, you just need to open up a flow channel by drilling into the body.
Plus, you can thread into them until the fitting bottoms out and it doesn't block any flow.

steves86ta

iTrader: (5)

Are you referring to this one?

Im not sure ill have room for my oil psi sender in my application with it here, but i might try it

draggin97s10

iTrader: (2)

The boat doesn't have wet headers on it does it? If so how big of duration is the cam? I agree with 20-50 being to heavy of oil.

steves86ta

iTrader: (5)

no. they are dry

Dragframe

iTrader: (14)

....👀....

steves86ta

iTrader: (5)

Update.....

It was the fitting that was cutting off the oil supply

I built another engine, all new forged internals and **** canned the ict adapter and fittings

Bought a gm adapter with the spot for the sensor. Changed the feed on to to a tee to both turbos

Ran it last weekend and oil psi didn't even fluctuate at all all day

Check your bypass plates and the fittings to make sure you are not impeding oil flow

Darth_V8r

iTrader: (4)

Expensive effing lesson. Thanks for the tip

rkupon1

iTrader: (3)

Damn...its bitter sweet finding that kinda problem. We are gettn ready to fire off my high dollar build, and im freakn terrified! There is almost nothing factory. Just a completely frankenstien engine build of aftermarket everything...the whole car is built like that,lol...