Simon Gunson

Wanting a more power than the standard 2.0 turbo. What are the normal ways of going? Reboring a 2.0 closed and or stroker kit, if it can be done, or 2.5?

jura11

iTrader: (7)

2.1L Stroker I would choose,run previously and has been awesome engine and with right turbo is great combo like for day to day driving or track

Jura

Simon Gunson

What power were you running?

jura11

iTrader: (7)

Hi there

We have run 490bhp and 480lb-ft on 2.1L,which has been based on WRX Block(Open Deck Block)

Jura

Simon Gunson

Would there be any chance of you listing the parts used? Would it be worthwhile if I got a closed deck?

jura11

iTrader: (7)

Hi there here is brief spec:

Open Deck Block(EJ205)
Cosworth pistons
Manley Rods
ACL Race Bearing sets:big end and main bearing set
Cosworth baffled sump
10mm Modified Oil pump
New water pump
11mm ARP Headstuds
Cosworth Stopper 1.1mm HG
79mm Subaru V8(EJ257) Nitrided Crankshaft
Gates Timing belt kit
Heads(Valves re-lapped,cleaned,re-shimmed and head skimmed)

Turbo we are used MDX321T

Japspeed FMIC

740cc Injectors

We have run 25hp NOS Jet shot

ECU: Syvecs S6 PnP

Hope this helps

About the running Closed deck,not sure,depends on yours target,but for our target we are been more than happy with the spec,as our engine builder and tuner said,engine has been built for 550bhp,above that Closed deck block and better rods are needed at least

Jura

Simon Gunson

Thank you very much

One more question; Did you have to modify the block to fit the crank?

banny sti

iTrader: (68)

For a closed deck you will have to modify is for rear thrust but an open deck or semi closed deck wont need this

AS Performance

iTrader: (4)

IMO i would not start a high power build with a basic open deck block (and certainly no chance if its a 2.5)

Fai17

iTrader: (2)

Depends what power you are looking for Simon?

ditchmyster

iTrader: (7)

I don't see anything to worry about using a WRX block up to 500 ish horses.

It will also save about £600 on the cost of the build, which can be put into other areas, or even saved, shock, horror.

Another point to bare in mind is a very large proportion of people fall out of love with their subaru once they have put 5, 10, 20k into it and sell for a fraction of what it costs to do, so unless your 100% sure you plan on keeping it and it's an on going project there's not much point going for the absolute best of everything.

And at the end of the day if your serious about going north of 500 ponies you really want to be looking at a 2.35.

Simon Gunson

Thanks for the replies. It is defo something for me to think about. I'm going to upgrade to proper coilovers first and then look at the engine. There are so many brands to choose from in the £700 mark but then Bilsteins are double that. It is mainly a track car, so I'm looking for very stiff damping and lowering slightly

Simon Gunson

And she is going nowhere. Can't sell my first Scooby. Would have to break her to get a reasonable price for her.

Tidgy

for a road car forged 2.5 is about as good as it gets, much more low down grunt than a 2.1, will manage 450bhp no bother.

TylerDurden

Why do people sell up so quickly, do forged engines not last?

MattyB1983

iTrader: (51)

For me the pleasure is in the building and modifying of a car more than the actual driving bit.

TylerDurden

So its more about the sense of achievement, I suppose it is a great motivator.