Injector sizing based on airflow...chart inside

[BigT]

I know 1g's have less base fuel pressure than 2g's but dont you 1g guys usually raise it or no?


FPR = 43psi and Fuel = 93 Octane and Target AFR = 11:1
550cc = 40.5lbs/min
650cc = 47.8lbs/min
660cc = 48.6lbs/min
680cc = 50lbs/min
720cc = 53lbs/min
750cc = 55.2lbs/min
780cc = 57.4lbs/min
850cc = 62.5lbs/min
880cc = 64.8lbs/min
950cc = 69.9lbs/min
1000cc = 73.6lbs/min
1600cc = 117.7lbs/min

FPR = 43psi and Fuel = Race Gas and Target AFR = 12.5:1
550cc = 43.8lbs/min
650cc = 51.8lbs/min
660cc = 52.6lbs/min
680cc = 54.2lbs/min
720cc = 57.4lbs/min
750cc = 59.7lbs/min
780cc = 62.1lbs/min
850cc = 67.7lbs/min
880cc = 70.1lbs/min
950cc = 75.7lbs/min
1000cc = 79.7lbs/min
1600cc = 127.5lbs/min

This is also assuming the injectors are flowing what they are rated at. I know some injectors flow more, denso, and some flow less. This should however help some people in choosing what size injector to run. I did not create this and will not take credit. Just copied it off another board.

maybe sticky?

[MikeL]

Numbers match the spreadsheet I have that does the same thing and is known to be accurate, so I'd say they are reliable.