DHGFK

Hi guys, looking for injectors to support 400bhp but dont know what ones are compatible. Does anyone know which Impreza ones will be a direct fit?

ryan51

Plenty of forester specific groups on Facebook with lots of information if you have it?

DHGFK

I do mate but the only answer I really got was to send mine off to be reworked, I'd rather buy some new ones manufactures at a higher flow rate and that are direct fit

ryan51

Thats fair enough.not a great answer tho is it.and probably less hassle to buy new ones.look up brown pants racing on here.andy is very knowledgable with the foresters.he may be able to help if you drop him a pm.

DHGFK

Cheers ryan and good luck with the sale

ryan51

[QUOTE=DHGFK;11937944]Cheers ryan and good luck with the sale [/QUOTEthankyiu.no real interested parties so far.will probably be sat parked up feeling sorry for it's self a little while yet.i think you should be looking for top feed injectors tho.deatchwerks 650cc or something may do the job?might be wrong tho.

DHGFK

[QUOTE=ryan51;11937945]They will but then I'll have to change all sorts of other stuff as well, I was just hoping for a quick swap job

The Trooper 1815

iTrader: (31)

Any EJ257 uprated injectors will fit. Unless you need to go billet fuel rails.

DHGFK

If you're sure of that then I'm a happy man cheers

Vxr2010

I have a friend who did this route plus bigger turbo as it runs out of puff around 330 to 340, his response after doing it was he wished he had not , his reasons were engine broke fuel
economy was crap and it drove worse , all it ended up in the end was costing a load of money , that's his opinion and i do agree with him , but your decsion , i have 2 fsti sg9 and mapped exhaust rear roll bar and coiovers and that's it , plus one with a sports cat not fitted by me , quick when you want to be economical around 36 on a long run

DHGFK

What happened to the engine? And wouldn't the other issues be because of the map, who did it? I've got forged pistons in it and will be taking it to Andy Forrest so I thought I could get it running fast and safe

Vxr2010

hg and bottom end , the map did not cause the issue , both my fsti engines have had forged re builds now , the hg went on one rebuild after about 3 or 4 years , arp head bolts is a good way to go , good maps on both cars and cars looked after , on the fsti you can go for more but they work well and have better reliability between 300 and 330 bhp , yes he's a good tuner , the low down grunt you get due to smaller turbo is a big plus on the fsti plus good drive ability , i heard a safe map is around 1.3 bar , your turbo may make that or close to it , if it's me i would map what you have , if it helps by 310bhp fsti v a more tuned spec d , off the lights were it maters was always quicker due to less lag , it's full boost around 2200 rpm , your choice your car not trying to tread on your toes regards your choice but it is a good all rounder out the box with a map exhaust and suspension

Vxr2010

on drive ability my 2 litre sti wagon with more boost and more bhp gets beaten
by the less powerful fsti off the lights , beaten at traffic lights by the mrs lol

DHGFK

I had the pistons done along with the HG recently, cheers for your input though mate it's something for me to think about currently have coilovers, thicker arbs and strut braces, equal length headers, sports cat and straight through centre section to genome backbox so the next step was the turbo (I was looking at the MD321H which is supposed to be quite responsive still)

Don Clark

Don't forget that the FSTi engine is an EJ255 not EJ257, so will have certain breathing restrictions down to the milder cams.

DHGFK

What should I take into consideration regarding this when planning upgrades? I was hoping you would show up as well, the parts expert can you confirm all injectors for 255/257 are compatible?

Don Clark

Looking at the database the FSTi injectors (all years) are listed as 16600AA170 which are side feed yellows....




So not compatible with other top feed injectors used on later UK Imprezas.
UK 255 and 257 use 16611AA720 (Dark blue)

The Trooper 1815

iTrader: (31)

My FSTi had the 330/330 Litchfield setup when I bought it from him. It went on to be LPG converted and went past 150k last I heard.

It was pretty immense to be honest.

DHGFK

Woops sorry I meant all other side feed injectors for 255/57 engines!

Ah nice, did you get it back in the day when they first came out?

The Trooper 1815

iTrader: (31)

2007

Vxr2010

i think you will run out of useable boost before you run out of fuelling , both mine are at max ish boost for the turbo but have a good fuel supply

Don Clark

If you look over on Subaruforester.org (European forum - Euro Dyno figures thread), you will find what others have done to UK models and the FSTi's.
Unfortunately some of the earlier attachments no longer available but lots of other interesting info.

For example, this is one I knew very well (back in the day ) and pulled like a train on standard engine setup/ modified exhaust (360/398 )



For your convenience (not sure if you need to register to see the attachments) link below
http://www.subaruforester.org/vbulle...figures-27666/

Vxr2010

i have read it a lot of the fsti were around the 330 bhp mark and around 1.25 bar , to hit that 360 i wonder how safe the map is and how accurate the dyno is , on both of mine with mods it's been around 330 and that's with two different mappers both who knew there stuff and both saying that's about as much as you can go and suggesting leave it there

Don Clark

It did run an Apexi AVCR.

Mapped by JGM - no problems and still OK (AFAIK) 9 years later, although under new ownership.

Don Clark

During the period 2003-2010 my then FXT was run numerous times at Powerstation (MaHa) and SRR (DynoDynamics) and for the same setup the results were comparable given the different RR manufacturers.