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I am boosting my D17A1 non Vtec.. Ok i heard that these motors are leaning out on 3 psi.. Is this true even though i have an Apexi SAFC to control the fuel... Next I bought injectors RC 440cc injectors.. the problem is that the injectors are twice the size of the stock in height and i cant put on my fuel rail its rubs on my TPS sensor... So how do i fix this problem.. Can i use the injectors off of the Honda Turbo wave runnner.. Or does anyone know of an intake manifold off of a later model civic engine.. Please help me out.. Thanks much Matt

 
Rep Power: 272

rsx type s injectors. it clips right in. 310cc is all you need for a d17 boost app unless your planning to make over 225-250 whp i think. just get the rsx-s injectors and you will be fine!

 
Rep Power: 424

225-250? on 310s? Ha... you'll get between 170 and 190 out of them. Next step up that probably fits is RDX 410s, but you'll need something more than an emanage to get the car to idle with them.

 
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Im trying to get a machine shop or Dezod to CNC me a manifold spacer to go between the injector plate and the intake manifold about 1 1/4 inches thick then i could use the R/C 440cc injectors....

 
Rep Power: 272

i meant they will be good under for apps making under 225whp.

 
Rep Power: 281

If you're not comfortable with rsx injectors the next step is SRT-4 injectors which are close to the size as RSX and should fit between the TB and fuel rail. Those are rated at 577cc if I'm not mistaken. I've also heard 527cc, but you'll need a superior fuel management system to run them on your car w/o issues.

 
Rep Power: 305

True, unless you are able to bump up the fuel pressure a tad. Some have also done the injector mod that increases the flow of the stock rsx injector.

To OP, 3-4 psi on stock system = maxed out. You shouldn't be running boost on stock fuel system period. The SAFC/VAFC is garbage for boosted setups, emanage or equivalent & rsx injectors are minimum hardware required.

For injectors hitting the TB, design some kind of leak proof spacer thing or go custom intake manifold.

 
Rep Power: 288

Ok, I feel like I'm in a grey area here, let's say that my power goal is exactly 200 horsepower. Will the RSX injectors sustain that? What are people using for more then that?

Would it be better just to buy something else?

 
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thanks for the info i got injectors from an 05 accord with a 2.4L in it... those are of right...

 
Rep Power: 241

hey man just to let you know.....the turbo kit i bought off you.....im makin 218hp/198tq at 11psi im using RSX-S injectors and they are maxxed out in full boost. i have SRT-4 injectors that will be here friday... and the tuner is gonna try to get them to work....we will see. if not ill get some RDX injectors and go from there. i think im gonna have to convert to a return fuel system anyway...so does anyone have any parts i can buy for that setup??? a modified rail and a FPR will help me out greatly if you guys have one

 
Rep Power: 424

It looks to me like they'll fit just fine. Or at least the Precision 440s will...

 
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Yeah run some 310 injectors , a walbro 255lph pump and an Emanage and you should be ok...you will need to clamp the map sensor as well...

 
Rep Power: 241

ok i now have mySRT4 injectors in and they are 570s.i still have Emanage and i put a 255walbro in. this carhas only one issue that is livable.....at a stop light when the car is completely warmed up....the car idles fine.. when i comeoff the light normally...only through the 1-2k range in RPM it acts like the rail empties out and it doesnt want to run. after that it runs just fine.

 
Rep Power: 288

Has anyone achieved 200 horse with RSX-s injectors?!?!?!?

 
Rep Power: 281

Yes it has been achieved, but its not safe since they are at the limit of maxing out at that point. As a reference talk to Abmerop. He was running 10-12 pounds of boost I think and made about 220whp on RSX type S injectors but ya he said he was close to maxxing out the injectors.