hello,what is the maximum power output u can get from 440 injectors?would i be dreaming in trying to get 330-340 bhp with the standard 440 injectors in place?i know ill need a afpr to accomplish this but am thinking of putting in bigger injectors if they will max out before 320? anyone know?there must be a few of u that have maxed them out......what figures??? thanks in advance.

 

i was told yellow 440s are good for 340/350brake with supporting mods , on classic full decat fuel pump fmic etc and a remap

 

hmmm,ive heard all sorts,300 tops,320,350???? would be great to hear it from someone who is running them to the max and at what power figures were accomplished? thanks for the comment.

 

Mine are Maxed out (100%)

and its running the 350bhp

Hence going to get them flow rated

darc

 

ive heard about 330 is the limit for 440s

 

so i dont really need to go bigger then do i? as im only gonna aim for 330-340 tops? just get the adjustable fpr?

 

ive also been told its not a great idea to run them at 100% if that helps mate

 

Try andy forest perfomances website he has a section with power outputs and what mods are needed to reach em

 

thanks but it dosent really tell me if the 440s are ok at 330-340.it states upto 320 and the next stage starts at 360 so its missing the inbetween bit which is what im after.typical lol.

 

Hey fella, what pressure are you running your 440's at?

 

mine at std pressure are maxing out with 1.2 bar td05, 300 ish prob here

 

been on a dyno or estimated 350?

they normally max about 330bhp.. you do get the occasional car that will make more though

Simon

 

my car has always made slightly less what im trying to do is up the power from 300/300 to 330-340 and was wondering wether i could avoid the big cost of 550s as i dont want to run 350 for the safety of my gearbox etc,but really want 330 or more. is this possible do u think? im running vf35 and was mapped with a 2 port bs with standard tmic,ive now got sti8 tmic,3 port,ported headers,and uppipe,and the adjustable fpr.can i get away with not forking out for the monster price of 550s???

 

With the mods you`ve mentioned and a good fpr you should achieve 330 or close to it,but every car is different and to TBH your pushing the limits of many of the standard parts on your car,rods,pistons,crank,clutch,gearbox etc on a classic are close to there limits at this kind of power and there life expextancy will be grately reduced beacause of this.

 

im well aware of this mate,hence not pushing it too the max,the car is driven daily by the mrs,i have my occasional blip at weekends and i drive with alot of mechanical sympathy,the bottom end has only covered 40k,ive had a new clutch,the gearbox what was worrying me most has done alot more miles and thats why i wont be launching and thrashing,if the gearbox goes then so be it,but i am trying to be a bit carefull.it seems a bit daft to spend £350 ish for some 550s to gain just 20bhp and probably knacker everything at the same time,just hopeing i can fetch around the 330 mark with the adj fpr.

 

I did 335bhp/333 ft.lbs STi 3 Wagon and there was nothing left. Obviosly with an FPR.
For interest 550cc on two separate cars were struggling by 400.

 

thanks mate,just the reply i was after.

 

if your lucky mate. try and get a good set of 500cc blue injectors
reasonably cheap to get, but at the same time hard to find

i was always told 330/340ish
tidgy got 343 with his 440cc injectors

dont know if he has an uprated reg though.
550cc injectors tend to hold value these days

 

gonna stick with the 440s and get a fpr.

 

i have 440cc fitted at the mo, but sent off for these 500cc so's not to max them out.
maxing will decrease the life of them. with a fpr, even more so

 

You mean injectors like those?
SUBARU Impreza STi GC8 V5 V6 Injectors 500 cc DENSO 99~ on eBay (end time 28-Jan-10 06:30:32 GMT)

Are they worth anything? Isn't it some sort of cheap Chinese copy with Denso signs?

cheers

 

99gw... check these bad boys out!:-

Subaru Impreza version 5 / 6 550 Fuel Injectors on eBay (end time 25-Jan-10 20:02:17 GMT)

I'm sure they are Power Enterprise jobbies - one of the best brands! Plus seller says he had 'em off JGM so, if so, will be totally fine.

Even if you end up paying the full £250, I'm sure you'll not find cheaper (esp. PE ones!)

 

yes look good

they are power enterprize

Simon

 

There you 99gw, a personal endorsement form the great man himself - what more can you ask for?!

 

Do those really need no special caps? The tops of injectors look different to UJ/Nismo style injectors?

 

typical......havent got the funds at mo! that is soooooooooooooo typical!

 

99gw, never mind.

If you do get a FPR (and I've been advised from a respected specialist that really you are better off with the Fuelab one), then you can run 440cc inj. at a minimum 3.5bar static (instead of the std 3bar). This should allow them to run at c.470+cc, which should allow 330bhp - as borne out by harvey, above.

 

fuelab ones are pricey i believe,if i spend near on £200 for the fpr,i may aswell get some used 550s(if i can find some when the time comes?) going round in circles here lol,ive got to buy 4 tyres and service motor first so gonna be a while,but u have gave good info which i can benefit from,just still not sure which way to go now,dont want to go 350bhp as i dont want to break the 5 speed just yet,so 330-340 would be ideal.im sure u can see where im coming from as regards paying out the extra for NEW injectors and running it at 340bhp,where it looks like 330 on the 440s is do-able but with a fpr thats gonna cost the price of USED injectors! thanks joz.

 

In that case, I'd just get mapped on your 440s and see what figure you make! At the end of the day, it's gonna be around the 330 mark give or take. I'm sure the 'number on the page' won't bother you once you rip it up the highway for the 1st time!

Re the 550 route... Flawed thinking if you feel you could reliably run the 550s on the stock OEM FPR - you'd really be better off, in the long run, to have the new FPR in addition! to the 550s (your OEM one is at least 10 years old and there'd be no way of infuencing how it will control the 550s...). After all, with that sort of fuelling (410bhp potential), you really wouldn't want the inj to run erratically/lean! at high loads, simply all because of an iffy old FPR - curtains! You'd hate yourself.

 

i think im gonna stick with the 440s like u said and my mapper said he can supply the fpr for £95 and just scrape 330 (hopefully)so i be happy at that mate.funds are tight this year,just trying to get a bit more power for not alot of dosh lol.