As the title says, I have a quick newb type question. I own a 95 Civic EX, 5 spd,125K,runs strong, blah blah blah. I am getting ready to put on the Greddy 15G kit, with the type 31 FMIC, and a type s bov. I'm looking at a 7-9 psi range, its still a daily driver but I would like a punch to go with it. Now my question is, would I need any kind of injectors or extra fuel supply? I've been looking around here and noticed SleeperCivicEX has the RC 440cc injectors with a VAFC. Could I get away with a walbro 255 lph fuel pump with stock injectors? I'm not familiar with the VAFC and trying to 'hack' things in. Any help is greatly appreciated. Thanks!!

 

At 9 psi, I'd question stock injectors. If you are putting a new 15G kit on, it comes with RC 310s (or 330s?) and the E-manage so you're all set.

You also have to realize that even with a fatter fuel pump, your injectors are still only going to push out what they were made to push. Just because you have more going to them, doesn't mean that they will spray more fuel.

I say it's easier to lean out rich injectors than it is to try to push the limits of lean ones.

Tell me more about this kit.

 

Exactly: fuel injectors are only designed to flow a certain amount of fuel. They work on a principle called duty cycle. Duty cycle is how long the injector stays open. The fuel pump pressurizes the fuel rail, and the injector opens for a certain amount of time. How long it opens determines how much fuel goes into the engine. The extra fuel goes back to the tank. Upping the fuel pressure means that you might be able to squeeze a bit more fuel out of the injector for the same given duty cycle, but not much.

Now, GReddy generally speaking makes their kits pretty complete and reliable in terms of working properly with whatever fuel system there is. The GReddy kit for your car comes with a preprogrammed e-Manage piggyback computer (kind of like a VAFC) that supposedly works just fine with the stock injectors. Assuming that this kit only adds about 60 hp or so I'm willing to believe that, since the ITR uses the same injectors.

 

As said, the new Greddy kits include the injectors so they are really a complete kit.

 

Actually the kit for the '92-'95 Civic EX doesn't come with new injectors. It only has an e-Manage.

 

I stand corrected. :wiggle:

 

Thanks for the info. I guess I'll just ride on stock boost for now and get some RC 330's when the money comes around again. I gotta tell this story to get to the turbo story. I used to have a 95 DX and was contemplating the whole motor swap deal but my sister needed a car and dad 'didnt want her to have VTEC' so I gladly took the offer. Just traded cars.
So now with that out of the way, I already have the D16Z6 and instead of going through all the hassle of a motor swap, just buy a turbo kit. I have read lots of good things about boosting a D16 so I went with it. I currently have the Greddy 15g kit, the FMIC, and the type s bov sitting in my room waiting for good weather and a lot of time. I'm doing it myself(w/ the help of some friends,two or three heads better than one). I also have to go out and get a scanner so I can post the pics, one day.
But I will keep everyone updated on the install and thanks for the info.