Fuel Injector sizing
#1
Advanced PassionFord User
Thread Starter
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Anyone know if Stu or someone has written a concise guide on injector sizing?
If not, anyone care to enlighten me?
Cheers
If not, anyone care to enlighten me?
Cheers
#2
Advanced PassionFord User
Thread Starter
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From what i can gather...
(Horsepower x BSFC x 10.5) / (No of Inj's x Duty Cycle) = cc/min
Working on the following:
80% Duty Cycle
5 cylinders and hence 5 injectors
BSFC of 0.6 (which I believe to be correct for a generic FI estimate)
Target of 400bhp
(400x0.6x10.5) / (5*0.8) = 2520/4= 630cc/min ?
I guess that rules out 1.25 sets of VXR injectors unless I want to run them in excess of 5 bar (I dont)
First off Are my calculations correct?
Secondly, any ideas on where I can get such a size of injector without remortgaging my house?
(Horsepower x BSFC x 10.5) / (No of Inj's x Duty Cycle) = cc/min
Working on the following:
80% Duty Cycle
5 cylinders and hence 5 injectors
BSFC of 0.6 (which I believe to be correct for a generic FI estimate)
Target of 400bhp
(400x0.6x10.5) / (5*0.8) = 2520/4= 630cc/min ?
I guess that rules out 1.25 sets of VXR injectors unless I want to run them in excess of 5 bar (I dont)
First off Are my calculations correct?
Secondly, any ideas on where I can get such a size of injector without remortgaging my house?
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