The thing we forget is that the 7m has 7 main, 6 rod, 2 aux, 14 cam, and 2 turbo bearings to oil plus 6 piston oil squirters that aren't supposed to open until pressure gets above 20 psi.
That's 31 bearings in all.
The turbo right off the bat sucks down 15-20% of the oil flow from the pump...
I just got mkiv mounts for $52 from Champion, took about 2 minutes to modify them and the shroud that goes over them to fit in the stock mounting plate.
THANK YOU AARON!!!!
The problem is that the pump is a positive displacement pump. At idle, it is full flow and it simply doesn't move enough oil to build substantial pressure above 10 psi. The only way to cure this is to tighten all the clearances so the engine "consumes" less oil at any given moment, or increase...
Mark, the relief will not open until 40 psi in stock configuration.
The main and rod clearances (along with cam bearing and oil drive shaft clearances) determine oil pressure at idle. With the pump shimmed, you can see upwards of 60 psi at higher rpms, but it does nothing to protect you down low.
I know, I love that angle. Anyone who wants to molest these pics with PS to make them "artsy" feel free, they're virgin prints at the moment.
Oh yeah, you know what's cool? That's my front yard ;)
Looks like a nice build.
Going with a factory crank, why didn't you decide to go with factory bearings? They're hard to beat as far as precise oil clearances go, unless you custom grind the crank to match the clevites...
Keep us posted, and get some pics ;)
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