boost stock injector cc

[Superaccord93]

i have f22a6 i/h/e and h22/a6 intake mani. im looking into a 272 regrind and i wanna correct the fuel to air ratio without having to spend the cash on 440 injectors. would a afpr be suffice to boost em a enough to correct this. or would i need the 255 fuel pump, fuel rail, afpr and injector set up. i kno the full setup is the most ideal for the most power but thats a decent amount of money. i also kno id need a chip and tune. i wanna kno if i could do it with just the afpr or at most add the fuel pump too. any takers

[GhostAccord]

Cheaper to by the larger injectors, get a tunable ECU and tune it vs ghetto rigging a higher flow out of stock injectors on a stock ECU. Besides that, If you are looking to boost, you need a tune..... So to add $100 for some flow tested DSM 440cc injectors is nothing compared to what you will spend to fix or replace a blown engine.

[ninjawagon]

Spend the money and do it right the first time. Spending the money the second time to get it right just plain sucks money wise. I have seen it with my own two eyes to many times.

[Superaccord93]

Cheaper to by the larger injectors, get a tunable ECU and tune it vs ghetto rigging a higher flow out of stock injectors on a stock ECU. Besides that, If you are looking to boost, you need a tune..... So to add $100 for some flow tested DSM 440cc injectors is nothing compared to what you will spend to fix or replace a blown engine.

so id have to go with the whole setup injector, fuel rail, afpr and fuel pump?

[Jarrett]

A fuel pump isn't going to gain you anything unless the current pump is no longer able to provide adequate fuel. It's not going to make your current system perform better. The adjustable fuel pressure regulator will allow your injector flow rate to increase, but usually at the expense of flow pattern if you go too far one way or the other.

People have gotten away with running 272 camshafts with no injector upgrades. They've gotten away with running them without a tune, too, but I would recommend neither.

I would recommend the larger 345cc H22A injectors to keep the injector duty cycle in a moderate range. This is coupled with a tune, of course, as you should never change aspects of the fuel delivery system outside of a pump without it. If you want to couple that with a B&M adjustable pressure regulator adapter then that's all the more control you and your tuner have to ensure that your engine is operating in a safe range with the proposed upgrades.

[deevergote]

Adding a fuel pressure gauge to all that Jarrett mentioned would be a good idea as well, so you can be certain you're maintaining proper pressure.

Personally, whenever I change something on my car, I like to do whatever I can to keep an eye on it. Honda engineers knew what they were doing, but I'm no engineer. When I bolt new parts on my car, I greatly increase the chances that something isn't set up properly. Monitoring every little thing is always good!