ninjette.org - View Single Post - Fuel injected 08-11 ninja250r help

DannoXYZ · February 16th, 2020, 10:12 AM

Hi and welcome to Ninjette Matt!

For these kinds of projects, start with end-result first and work backwards.

1. What is power target?
2. How much boost is required for that power (pressure-ratio)?
3. What is that in air-flow mass? CFM?
4. How much total fuel volume needs to be injected to match that air-flow? At 12.0:1 AFR?
5. How much fuel-flow is that per injector @ 80% duty-cycle?
6. What is fuel-flow rate of factory oem injectors?

February 16th, 2020, 10:12 AM	#2
DannoXYZ ninjette.org certified postwhore Name: AKA JacRyann Location: Mesa, AZ Join Date: Dec 2011 Motorcycle(s): CB125T CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR SFV650 VFR750F R1M ST1300PA Valkyrie-F6C Posts: A lot. MOTY - 2018, MOTM - Nov '17	Hi and welcome to Ninjette Matt! For these kinds of projects, start with end-result first and work backwards. 1. What is power target? 2. How much boost is required for that power (pressure-ratio)? 3. What is that in air-flow mass? CFM? 4. How much total fuel volume needs to be injected to match that air-flow? At 12.0:1 AFR? 5. How much fuel-flow is that per injector @ 80% duty-cycle? 6. What is fuel-flow rate of factory oem injectors?