I've been trolling the STI forums about their stock injectors..

i think they're identical to power enterprises' 510cc (aka 550cc) and are a compelte drop in for us..

i've seen 4 injectors for $200 used, and i called around to some of the NASIOC forum venders and i can get a set of 6 new for around $525...

you think thats a good deal, considering PE is selling their 510s for like 18000 yen each..?

thoughts? concerns?

 

evo VIII's have 550's as well.

 

Ill double check what inj we have in the car at work...but I faintly remember looking into the Sti inj a few years ago...

 

If you are talking about the USDM 04 and up model STI's then those are a side-feed configuration...

If you're referring to the JDM Pink STI injectors, then those were a top-feed config and I believe flow about 565cc

Chebosto: how do you intend to use these?

 

JDM pinkies i've heard will drop in to the VQ. i wanted to use them for my engine build.

 

How about taking the stock WRX injectors and doing the mod that makes them 700's+(grinding off the flow restrictors).

 

i dont like the modification of any injectors,. besides. i dont nee 700+ ccs.

what i indend is a purposely built nice torquey 55xrwhp.. i'm not going for the highest rwhp. just something reliable and 1 bar boost.

i think i can accomplish that with just 550cc...

 

Chebosto: While I can't confirm they will drop in...it sounds like they shouullddd drop in, hehe.
I also forgot to mention that those STI pinks are pretty cheap as well, I believe ~$400

As for the 700cc grinding mod...it's not something we recommend. I believe the last time we tuned a Suby with those it was not fun at all. The spray pattern of the injectors can be inconsistent.

 

ok. i got verbal confirmation from my engine builder (howard @ Techno) is that the jdm sti will drop in, given i use the spacer kit that came with my PE TT kit. (he was unavailable this morning)

apparently PE uses the same STI injectors and just includes an adapter spacer kit. the harness clip ins are the same.

thanks for teh help Brainstorm....

 

I've got both PE 510's and STi pinks sitting in front of me...let me look

 

no problem

 

Why don't you send your stock injectors out to Deatchwerks? They will send you 550's 650's or 750's for $350. But you need to have the stock ones, or he will charge an extra 150 on top of that.

 

any more info on this

 

The base WRX injectors are 380cc Densos for sure that will drop in with spacers and plug into the factory harness. The STI I'm not sure

 

http://www.deatschwerks.com/nissan.htm

 

thanks

 

I have the stock injectors modified by DeatschWerks to flow 440 in my car. He flow tests them and balances the whole set. You can't buy off the shelf injectors and have a balanced set. For $350 you can't beat it. 5 day turn around time. $150 core charge if you don't return your stock injectors.

Respect
JET

 

thats good info to know Jet- thanks.

but i found a set of STI top feeds... now the experiment begins...

 

update:

wha-lah:
pictorias



connectors:


holes:


the 'missing' collar




for comparison.. my PE 380cc



notice: Top of the PE, the spacer that is next to where the fuel rail would insert, also the black rubber piece near the bottom of the injector... aka RUBBER SPACER/Collar.

i'm going to search McMaster-Carr to see if i can find some rubber spacers to make those non-PE equipped people happy (see i can just take my spacers off my 380s and add it to the pink STI injectors.. while if you buy these off the shelf, you'll need the collar)

woopty woot!

 

That looks awfully close... i think you can use em.

This pic is the best i can do in terms of pe510cc pic..sorry