2.5 sti block
 

Hi all! just a coupe(?) of quesions with regard to fitting a 2.5 sti short block i have.
1) Theres an extra breather by the water cross pipe,do i use it or blank it off?

2) Is it worth getting a lightened flywheel? Got my eye on a exeedy one,which isn't supper light,but i'v heard if it's too light(4.4kg) then it will idle badly cos it's a 2.5.

3)Am i able to run it in using the standard ecu? I've heard different veiws on this!

4)Should i use an expensive good quality oil during the run in period,only to change it shorly?

5)Last quesion,sorry! Will i need to fit 'cold' plugs? Any ideas which ones?

Spec: 2.5 sti semi closed deck
Hybrid fmic
740's
walbro
Powerteck filter
Aero fuel reg
Full decat 3" mogoose system
Uprated oil pump
Apexi power fc
Metal triple layer metal gaskets
Exeedy clutch
New belts,water pump,tensioner,rebuilt standard 95 uk turbo heads

Can anyone think of anything i've forgoten?!:wonder:

Sorry for so many quesions,but you guys know your stuff!:notworthy

Cheers,Tim :thumb:

1) = blank that breather off.

2) = The light flywheel is up to you, i have 6kg one on mine.

3) = Yes the factory ecu should be fine with low boost but you must use it with your factory injectors. Mines a ver3 sti and i ran mine in on the factory ecu for 6000k's befor i got an aftermarket ecu.

4) = It's normaly addvised to use a none synthetic to help it all bed in and is what i did for the first 1000k's

5) = 6's will be fine. It would depend one how much power your looking at.

Thanks for the advise megrac,great news about the ecu,means i can get the car back on the road quicker!:)

Tim