60# injectors
Originally Posted by JASON11WS6
When do 60# injectors die horsepower wise? Generally speaking of coarse.
fuel requirement lb/hr = (HP * BSFC) / (num injectors * duty cycle)
Use BSFC = .5 for NA, .6 for forced induction
Use 80% (.8) for duty cycle.
To solve for hp re-arrange the equation to:
hp = (lb/hr * num cyl * duty cycle)/(BSFC)
Forced induction = 640 hp
NA = 768 hp
Someone check my math
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Verdad Gallardo Thanks guys, I was planning on running a D1sc with the intent on maxing it out down the road. I was also mulling over the whole E-85 idea as well. I know you need a bigger fuel system as the E-85 requires more fuel. I'll probably end up with a dual racetronix set up from Nasty so I know the pump will be plenty goood. Would my 60# Motrons hold up to 700rwhp with E-85???
Originally Posted by Frost
MIGHTYMOUSE made over 850RWHP with 60s and meth.
I have had my setup up to 18.5psi on good gas and meth, and that HAS to be in the 700s rwhp-wise and mine had room to go.
I have had my setup up to 18.5psi on good gas and meth, and that HAS to be in the 700s rwhp-wise and mine had room to go.
regulator?
what was base fuel pressure set at?
stock 58psi?
Originally Posted by Todd157k
Save the math for the computer..
Find Max HP of Injector
Fuel Injector LB/HR 60
Number of Cylinders 8
Duty Cycle Desired 80%
BSFC (.5 for NA, .6 for FI) 0.6
HP of Injector 640
Meth changes the equation, and a RRFPR helps.
Theory (math) and reality don't always mesh. I'm sure they are being used in much higher HP applications. This equation is a good place to start. If you can get more out of them, nothing wrong with that.
Okay, so it looks like 60# injectors should hold up to an 700 rwhp motor which is where I want to be for now. But the new question is can they hold that kind of power level with E85?
Use BSFC = .80 for NA, .90 for forced induction when using E-85
This will be a good starting point as you will need much more fuel for an E-85 tune.
My former carb setup wanted 30% more fuel at light throttle, and 45% more at WOT!
This will be a good starting point as you will need much more fuel for an E-85 tune.
My former carb setup wanted 30% more fuel at light throttle, and 45% more at WOT!
