I have a 13b turbo with a highflow series 4 and the tuner reckons that the injectors max out at 230 rwhp.
The car should be producing around 270-300 rwhp with more boost. Just for 230rwhp do i need bigger injectors.
Does anyone know what the max rwhp is for the stock injectors

 

The injectors can flow enough fuel to support ~300fwhp so yes you will need to replace them if you plan on 270-300rwhp. If you can find them, a pair of 800cc/min 12AT injectors for the secondaries will up the limit to ~360fwhp and a set of four would be good for ~430fwhp.

If you can't find 12AT injectors you'll need to look aftermarket for ones bigger than stock.

Note that you'll also need a bigger pump and some sort of fuel control.

 

http://www.injector.com/fuelinjectors.php

Funny the 1680s cost less than the smaller ones. Maybe its a sign?

 

 

I can get 1700cc iny blue injectors for $165(aus) ...each
and i heard the walbro are good (300aus) what do u mean my fuel control..if u mean computer i have a microtech ..but plz give me input on the intank walbro fuel pump cheers

 

if i leave my car in ignition with out starting the car its floods itself. What does this mean