Hi guys, my setup is:

H22
95mm stroke
88mm bore
12,5:1 CR
Pro1 cams
70mm TB

What size of injectors I will need? I had RC 550 but they are bad. I have 330 OEM H22a2 injectors. Are they sufficient?

Thanks.

 

You need what ever the car is tuned for, or you will need a new tune.

OEM should work, but it would be easier to just get the ones you had in it it already.

400cc-500cc should be plenty for that set up, 500cc+ can be used for boosted cars.

I will be using RDX injectors set for 550cc on my N/a build and I think thats more then enough.

 

Thanks for reply. Problem is that i live in Czech republic and buying aftermarket parts from USA is very very expensive and time consuming. Car is not still tuned - I'm running basemap and i detected that my RC injectors leaking. So change injector size is not problem. I must say that i have fuel pressure regulator.

Thanks for advices.

 

Haha with a 95 x 88, pro1s and a 70 mm tb, stock wont cut it. I was running out of injector on the low cam side with a 95x 87, same cams, bigger tb.

Honestly, go to an ID or FIC injector, and either 750 or 1000 cc. They are so much easier to tune with, and the control and flow is honestly better than stock. I have solid idle at under 1000 rpm with ID 1000 on my engine.

 

Another option is RDX injectors.
They are cheap and you can get them from your local Acura/Honda dealer although I'm not sure about the Czech republic.