So what is the difference between the 2.0 litre and 1.8?
Do the internals of the 2.0 fit in the 1.8?
Cause if they do I plan on putting forged internals in my 1.8.
If they dont, where can you find some internals for the 1.8?
and where can you find good rebuild kits for 1.8 engines?
I looked around but im no good at the internet and couldnt find anything.

why im asking

im looking to rebuild my motor and run way more boost if my current problem cant be fixed easily and quickly. thanks for any info you can offer.

 

this post is gonna be moved so wait

 

uf, 14.5 psi on an open deck engine w/o forged internals...

just out of curiousity, though, I was under the impression that open deck engines couldn't run that much boost, regardless of having forged internals or not. Am I wrong?

 

apparently you were wrong

 

wow thanks for the advice a-hole
you were a great help

 

the funny thing is that they will fit if you bore the cylinder out to that size because it is a 2.0L block the cylinder walls are 9mms thick

but if you get a stroker kit get it for the old 2.0 before it was changed in 97 i think otherwise the thrust bearing in the back wont fit

can u weld? or braze? if you can put 4 aluminum tabs and make it semi-closed deck

 

You should never say things like "There's no way that engine can handle this much boost," because there is always someone who is running it and is doing fine with it.

People say those kind of things about my engine, the EJ251. They say the headgaskets are weak and the engine can't handle X amount of boost, and that the pistons will go.

But I am seeing more and more people running more and more boost. People are running 12 psi on the phase I EJ25 engine with stock internals without problems now.

Yes, closed deck is more durable. Certain pistons and rods are more durable than others. Of course. But the big thing here is tuning. It's about spark, fuel, air, temperature, and timing. You get those right and you'll get a lot more out of your engine than a lot of other people.

I think that you could run a decent level of boost on that thing without it blowing up. Make sure you have a handle on those elements first though.

I'm not a betting man, but I'd say that you could get 10+ psi on that thing reliably with the right tuning. That's on stock internals.

 

Also, for more information on turboing a 1.8L, check out Unique Motorsports.

http://www.uniquemotorsports.com

 

it IS all in the tune and fuel
sounds like he got high EGTs and burnt his rings which would not have happened with the use of water injection or higher octane fuel

there is a person on this board that is runing 11 psi without a intercooler and runing 12s i think out of a stock NA2.5

 

Theres another guy on NASIOC who ran 14psi on an EJ18, but he also had timing control and a fuel pressure regulator.

Anyway, the only real difference between the EJ18 and EJ20 internals in terms of the block are the pistons. The piston arms and cranks are compatible. The heads are totally different though.

 

further investigation revealed that I detonated the piston, it melted a little corner off the side. the block and heads handled it just fine, it was just the piston that was too weak to handle that much heat. so im gonna build a 2.2 with my 1.8 heads, for cheap and run really low boost untill i buy the internals for the 2.2

 

The heads are the worst part about the EJ18.

 

not really, they are the worst part on the 2.2, the heads on the 2.2 only have 1 exhaust port, but not the 1.8, they have 2 just like the EJ20 or EJ25 heads

 

They are nothing like the EJ20 or EJ25 heads: http://community.webshots.com/album/110209915vXVzdU

Dinky intake manifold inlets, tiny valves, hydrolic lifters...

And the EJ22 heads with the single ports are made from like 98-01, with better valve design than the 93-97 EJ22 heads which are basically identicle to the EJ18s including the dual exhaust ports.