smokingkills

iTrader: (3)

Or is the ej25 only NA & not a turbo engine?

I am panicking a bit because I have bought the short engine below (it was despatched yesterday) & I have just noticed in the pictures that it has ej25 on the block & not ej257 as I expected.

Can someone have a look at the pictures for me & tell me what you think?

http://www.renickmotorsports.com/oscommerce/catalog/product_info.php?products_id=1377{6}811&osCsid=f6f c2564ce92a7ee9b6ffd567aa0a190

Cheers chaps

ZEN Performance

The EJ257 engines have just EJ25 on the block, just like an EJ207 engine still only has EJ20 on the block.

smokingkills

iTrader: (3)

phew. Cheers for that, I was thinking for a minute that I stitched myself up with the NA engine.

heple1983

I've been looking at these blocks recently.

How much bhp/torque can these handle in standard form?

Will it be ok to run these with MY99/00 UK Heads?
I know STI 5/6 heads are ideal but they are quite expensive is there still going to be significant gains if i use the UK heads?

I'm looking to get around 450/450 using a MD321T turbo.

I've got the gearbox aswell as all the other suporting mods sorted i.e fueling,induction,exhaust,FMIC.

smokingkills

iTrader: (3)

If I get close to 400bhp & 400 lbs of torque I will be quite happy my engine tuner says we will aim for 350 until I upgrade to FMIC, 450 will probably on the very limit after the FMIC, but I am sure someone on here will put me right.

heple1983

I'm going to be adding an uprated oil pump aswell.

Just wondered at what point (power) i would need to uprate the pistons and/or the rods?

If was was going to uprate i would also add ACL bearings aswell.

Craig

smokingkills

iTrader: (3)

Scooby Clinic | The UK's Largest Independent Subaru Specialists click on the tuning sections then see the 2.5 upgrade part. Looks like 450 will be too much on standard internals

merlin24

iTrader: (1)

I would be inclined to make the bottom end as strong as possible - Steel Rods and Forged Pistons - make's sense to do it now because if you dont,it will always be at the back of your mind when doing future mods.
Make it " Future Proof ", because once you have achieved your 400/400 target - Great - you will be happy for a while but you just know....................
Let's see if we can get 480 brake out of it !!

smokingkills

iTrader: (3)

It gets pretty addictive hp hunting & I agree with you totally, however I wasn't expecting to do the convertion until much later on. Unfortunately one of my head gaskets has already gone & it is leaking gases into the coolant. Because of £££ I am just going to get the heads overhauled & chuck in the standard 2.5 STI block as it is because the engine needs to come out anyway.

I couldn't believe the price of sti shortblocks from the US. With the help of the exchange rate it was under £1100 delivered with gaskets (which are no good apparently fo version 4)+ whatever customs mug me for in duty & vat.