N1 turbos - how much boost

[Mik]

My R33 GTR runs Nismo 600cc injestors and a Power FC. I run about 20PSI boost and injector duty cycle peaks at about 75%.

Also, there's not much point running anything bigger than 444cc injectors if you run the standard AFMs, as the stock AFMs and injedctors seem to max out at about the same time.

My car made 290 kw at all 4 on a dynolog dyno which apparently reads much lower than dyno dynamics dynos. A certain WRX made 270kw on this dyno in the morning and went to CRD's dyno dynamics dyno in the afternoon and made 340kw.

[lySdEXiA]

personally, i'm agreeing with pete here. why only upgrade to small injectors? sure, they may handle the power you're currently making, but what happens when you decide you want more. all of a sudden, you've run out of fuel and you ned to upgrade again. overkill > spending money more than once, do it right the first time.

[ricknismo]

what fuel pumps are you going for? and is there any advantage in going for a b/b 2530 over a N1 turb?

Will the standard comp in a 32 GTR read big injectors and pump til I could afford an fc?

[Sydneykid]

what fuel pumps are you going for? and is there any advantage in going for a b/b 2530 over a N1 turb?

Will the standard comp in a 32 GTR read big injectors and pump til I could afford an fc?

Yep, 2530's are ball bearing.

Nope. the ECU tells the injector how long to stay open (not how much fuel to squirt in). Bigger injector = more fuel in the same time open. So if you have say 650 cc injectors they will squirt ~50% more fuel in the same time that they are open. You need to tell the ECU to open the injectors for ~30% shorter time. That means tuning the ECU or intercepting the main load sensor (AFM) signal and bending it so that the ECU shortesn the injector open time.

Hope that helps