It really depends what exactly you plan on doing with your motor. If you're going to stay n/a, your stock injectors are fine until you do some major modifications which increases the airflow. At the very max, 310cc injectors are what people use for their hardcore n/a mods.

 

95 integra ls. i'm planning on going turbo but not anytime in the near future. i was wanting to go ahead and get a fuel rail, regulator, and filter, so i thought i would get the injectors while i was at it.

 

First off, DSM injectors are LOUD. They tick like crazy, so if that bothers you, dont get them.

Second, you wont need the clips. They pop right into OBD1 clips...you might have to melt off a small tab a la the 9005 conversion, but I dont remember what I did, it was real late If youre OBD2, you need the clips.

Also, instead of a resistor box, you can use some 10watt 10ohm inline resistors from Radio Shack. Theyre $1.49 a pair, so $3 as opposed to $30 is a good deal.

Like everyone says, your optimum injector size all depends on your setup. You can also use old Supra 440cc injectors or RX7 550's, but you have to make sure youre getting the primaries, as the secondary injectors are 850cc's I believe.

 

Explain your fuel setup when you're going turbo. I could tell you right now you do not need a new fuel rail because the OEM one can support up to a high amount of HP.

Unfortunately you cannot use Supra nor RX7 injectors because they are a side feed model unlike the Hondas/DSMs.

 

The MKIV injectors are side feed, the MKIII's will work fine.

Same deal with RX7's...93+ are side fed. 86-87.5 NA are low-imp 460's, and the Turbo II's are low-imp 550's. 88-92 NA and Turbo are the same corresponding CC's (460 + 550) but high imp.

 

Regardless, there's no point in buying new injectors because the future plan calls for a turbo that will need them. You won't see any benefit whatsoever from going up to a higher flow rate for now, so there's no point in buying them until you need them.

 

so buying them now wont help anything?! thats all i needed to know. thanks.

 

Correct, buying them now won't help anything.

 

does anyone know the pulse width limit for an injector on an integra? and does anyone know what the pulse width on them is under load?

 

also, does anyone here have a reccomendation for injectors that are just as good, if not better, that are quieter than the gs-r injectors? or methods on keeping the noise from gs-r injectors down? it gets pretty crazy sometimes.