which injectors for 450-500bhp?
 

i currently have 740cc denso injectors and as i am having a build done next year along with bigger turbo etc i will be needing some new injectors so which ones would be suitable?

for a hawk sti

thanks

I'm running 800's @530 but are nearly maxed

deatschwerks 850 or1000

are you running a pressure reg aswell?

thanks buddy will look into them

I'm on 750,s with a reg @ 553 bhp

no reg at the mo but is due to be fitted soon lol

best quality and value for money (IMO) is the ID1050's..............

asnu injectors in mine and are great , uk company aswell

Injector Dynamics should be good,

I have injection dynamics 850s at the min and they were a bitch to seal up. Ended up having to use 2 seals on each. They are getting changed to deatschwerks next time I have an excuse to remap it.

where will you get them from?

Running ID1000's on mine, perfect fit and performance.

Id ask whoever is mapping the car on their opinion.

you know it wont be enough at some point. 800cc would be a popular choice but you would be roughly at 90% of their capability. i would go for no other than injector dynamics 1000cc if i was you. very easy on day to day commute very smooth on low revs and very reliable. i made 677 bhp and 741nm torque on my built 2.5 but they were at 97% of their capability.

677bhp from a 2.5..............thats gotta be the most yet surely?

what was the spec?

There's at least one 2.5 in the states with over 1000bhp!

So am I, and I'm more than happy with them too.

However, I'm only running 405bhp.
As I worked my way up from the low 300s every tuner (Powerstation, ScoobyClinic, Rawle, Enginetuner) before they started the mapping session said they were too big and won't give stable idling or they'd be difficult to fine tune. Yet, none encountered any problems with the ID1000s.
I get the impression that they're a 'fit and forget' option in that they can handle a wide range from medium to very big power.

Shreksta, are you sure you need bigger injectors for 500hp?

mark@lateral used to advise as a rough guide that you could divide the cc with 1.35 to arrive at a bhp figure the injectors would support at 3 bar on a Subaru.

For 740, this works out at about 550.

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If he was starting from zero injectorwise I'd agree completely, but if he's got injectors that will do the power already it seems somewhat wasteful to spunk another 400 or so on injectors :)

hi

im only going on what ive been advised by the different tuners ive contacted. if 740cc will do then im more than happy to not spend another £400