Im about to turbo my car, and im planning to hit about 230-240 WHP. I will have an AEM Fuel rail with an adjustable FPR, a Walbro 255L Fuel pump....now, what size injectors should I use? THis is for a 2000 Si running a T25 at 7.25PSI. Thanks!

 

you could use dsm 450cc would work fine or rc 550cc are good too if you ever want more power 550cc are good

 

Is it better to have to big of injectors? I was Thinking of getting 330CC...are they too small?

 

550's unless you want room to grow, then 650-750's. word of wisdom. dont use the AEM FPR, you dont need it, and it may fail, i have seen a few drop here lately. 350+- whp can be made on a stock FPR.
and youll need saturated injectors.

it isnt necessary to have bigger injectors unless you plan to grow into them. 750's are as large as you can go with out a resistor box. so thats just another thing to think about. yeah 330's wont be enough.

 

Whats the difference between like saturated, low impendence, etc? Whats a good brand for the injectors?

So I should ditch the AEM Fuel rail? Or just the FPR?

 

me my self i would go biger because you always want to have more power down the road just get some 450s you can get them for cheap like 50bux and you wont have any problems

 

What brand do you reccomend for injectors? I want just plug and play..no wiring and stuff lol. But wats the difference between saturated injectors and peak hold? And which do I need?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jeffk182 &raquo;</TD></TR><TR><TD CLASS="quote">Whats the difference between like saturated, low impendence, etc? Whats a good brand for the injectors?

So I should ditch the AEM Fuel rail? Or just the FPR?</TD></TR></TABLE>

you really dont need either.
i use RC, but precision are good too.
saturated = high impedence = 12-13 ohms of resistence.
peak and hold = low impedence = 2-3 ohms of resistence.

one reacts faster, i want to say that the sats are faster, but i am probably wrong, but it comes down to what your ecu injector driver needs to see for resistence. for a honda it is 12 - 13 ohms. but here is the issue. i dont know of a saturated injector bigger than 750. so if you go bigger than that you will need a resistor box.

you arent really gonna have a p+p because of the obd2 injector clips. they are kinda weird, but it isnt hard. just cut and solder and shrink. they are gonna have an obd0 (88-91) injector clip. there is a way to make a obd1 (92 - 95) clip work, you just have to dremel a tab off. i dont know. i just use the clips we get from hondata, or obd0 clips.

 

Ohhhhh, ok thanks man. Thanks for all the post's...i'll need to grab those 550cc injectors then. Thanks.

 

I noticed the price difference between the 550CC and the 750CC injectors it 10$....would it be better to get the 750CC's?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jeffk182 &raquo;</TD></TR><TR><TD CLASS="quote">I noticed the price difference between the 550CC and the 750CC injectors it 10$....would it be better to get the 750CC's?</TD></TR></TABLE>
yes if they are both the same type [peak and hold or saturated]

with peak and hold u will need to wire in a resistor box but you can go bigger for cheaper

 

Yeah, they are both saturated so I wouldnt need the resistor box.

 

550