Are these Subaru EJ25 crankshaft clearances ok?

Starting to get into blueprinting engines and have a old EJ255 I want to rebuild "on a budget"

I have a set of standard bearings installed in the case halves, bolted them up to spec and the clearance's I measured up are;

#1 - .055mm/0.002

#2 - .050mm/0.0019

#3 - .050mm/0.0019

#4 - .040mm/0.0015

#5 - .040mm/0.0015

The manual states that 0.01mm - 0.03mm are spec - mine are a bit out - would you still run the engine at clearance's?

What are the draw backs? - assuming reduced oil pressure and reduced overall engine life, as things wear the clearance's will get bigger.

I don't expect it to last as long as a brand new engine but would expect still a bit of life from it.

Subaru engines need a little thought because the cases tend to grow a little at operating temperature and hence the clearances become looser. I normally aim for a maximum of 0.0015" and would not be comfortable with a clearance measuring up at 0.0019-0.002". One of the problems with running looser clearances is that you will lose oil pressure which is so critical in these engines.

Andre what oil do you recommended (5w30,5w50,10w40 ,10w60, 15w50, etc) and any make in special( red line , motul , mobil 1 , etc) for a EJ20 with rod tolerance of 0.038mm(approx).. my car i usually for daily use , and occasional for drag or track use..

in the last build i run 5w50 for a year and half but connecting rod failed. now pretend built with crankshaft in oversize ( 0.25) but is recommended? or if better buy a new crankshaft , i have a nitrated oem crankshaft and manley rods.

the oil selection and rod oil clearance i would like know opinion for experts to run my car with peace. my car is practically std in turbo , inyectors , etc

my car is a sti 1998 ej20 but with short block sti 2005

if you coul guide me i would very grateful to you.

regards

I normally start with the stock recommended oil weight and then move 1-2 ranges heavier. There's a close relationship between your oil weight, bearing clearances and the oil pressure. The other thing to consider is whether the engine is AVCS equipped - If so, a thicker oil may hamper the cam control operation. To give you an example we run a Motul 300V 10W40 in our FA20 turbo which is specced for a 0W20 from factory.

OK , Andre

i am very grateful for your answer , i clear several doubts .

regards

Thank you Andre,

also good info for me.

I found something like this, maybe if Andre check it, will help, but I don't know if it's correct.

https://www.youtube.com/watch?v=mZItFNUc1P4