Which injectors should I use?
 

Ok the history..
I have a 95 WRX it had a v4 engine with 440 yellow injectors. HG went so I bought a V2 STI lump, it came with everything included, inlet, turbo the lot, including standard injectors.

So fitted alcatek ECU and had it mapped down at enginetuner and got a respectable 300 BHP.

Obviously hit the limit with the current injectors and was advised to upgrade them soon as and get a remap.

So, should I use my old 440 yellow with an adapter kit.. -or- get some new ones like these: http://www.ebay.co.uk/itm/4-JECS-550...gAAOSwyjBW4xkG

-or- something else?

ive got some as new DeatschWerks 850cc sidefeeds £200

Wouldn't 850cc be overkill?

Iv got asnu injectors ,, UK company and very very good injectors and good prices aswell,, Bob Rawle recommended them as he runs them in his Scoob aswell

I'd be using asnu's, not sure they do a side feed tho

what size did enginetuner recommend for your setup though - are you planning to upgrade the turbo or anything else later on?

If it's just to run what you have now 550's and a decent regulator should see you as high as 380 - after that 740's would be on the list.

Best speaking to the mapper and what future mods you will have,no point getting injectors and having to change them at a later date due to more modifications.

ived had 850s fitted since I was about 300bhp ish,fitted by enginetuner so I guess they must have been fine.

Are these phase 2?

Would need to ask,I just know they are 850 and side feed.

Ok...I may be looking to upgrade soon.