GT-R Fueling

• Fuel injectors are 444cc @ 43 psi
  
• Yellow top
• Low impedance
  
• Top feed
• Stock injectors are good for about 444 hp at the engine
• Fuel pump
• Great page on fuel pumps - Stealth 316.
• Fuel lines
• Fuel pressure regulator
• Pulse dampener

• Stock R32 fuel tank fitted with dual pump and dual supply.

Aftermarket fuel rails

"The time available (window) for an injector "to inject" is 10 millisec's @ 6,000 rpm/100rps, and 7.5 millisec's @ 8,000rpm/133.3rps, i.e. the time spent for one crank revolution. A 100% duty cycle 300 cc/min injector would inject 5 cc/sec 0.0375cc/rps, i.e. in each engine revolution."

444 cc injector = 7.4 cc/ sec

550 cc injector = 9.1 cc/sec

720 cc injector = 12 cc/sec

1000 cc injector = 16.6 cc/sec

10 ms 6000 rpm 100 rps 80% = 8 ms

7.5 ms 8000 rpm 133.3 rps 80% = 6 ms

7.0 ms 8500 rpms 141.6 rps 80% = 5.6 ms

6.6 ms 9000 rpms 150 rps 80% = 5.28 ms

6.3 ms 9500 rpms 158.3 rps 80%= 5.04 ms