Upgrading Injectors

[pithi69]

Hey 90 Civic B18B1 swap, i've upgraded fuel pump to walbro. I was wondering if there is a point to upgrade my injectors even though the motor is stock besides a few bolt ons. If so, what are the highest CC injectors I can use? I also want to upgrade my fuel rail and so forth in the future...

[1992 honda monster]

Well the more air and fuel you have, the more power you will have. But the amount of power your wanting isn't going to come from the injectors. If your going to turbo the engine, the it's an good idea but other than that it's only going to give you a 10hp jump. Go with 330 cc. If you want more power and you get bigger injectors, get a better throttle body. You have a 56mm throttle body, Go with a 70mm and with your 330cc injectors you should have around 30hp-45hp jump. That is if you have a intake.

[BLU CIVIC]

Originally Posted by pithi69

Hey 90 Civic B18B1 swap, i've upgraded fuel pump to walbro. I was wondering if there is a point to upgrade my injectors even though the motor is stock besides a few bolt ons. If so, what are the highest CC injectors I can use? I also want to upgrade my fuel rail and so forth in the future...

i think it's pointless to do all these fuel upgrades since your car doesn't require any more than stock flow.

[Laner123]

Wouldn't the car run to rich then?

[BLU CIVIC]

not with just an upgraded fuel pump. the stock fuel pressure regulator will keep it in the green