Green top 42's how much rwhp
06-20-2011, 05:34 PM
#3
Launching!
iTrader: (13)
Join Date: Aug 2008
Location: flint,mi
Posts: 241
Likes: 0
Received 0 Likes
on
0 Posts
Green tops flow alot higer then advertised more like 53 or maybe closer to 60.With almost 500rwhp to the tire, my duty cycle was still around 80 or so! With a very safe tune.
06-20-2011, 06:43 PM
#5
Easy math. It depends on the fuel pressure and application
They are rated at 43.5 psi so you take the fuel pressure that you are running divide it by the design pressure and take the square root.
SQRT (60 psi/43.5 psi) = Multiplier.
Take this number and multiply it by the injector - that is the real lb/hr flow you are getting from that injector.
Next to figure out the HP that the injector is going to support you take the injector flow (calculated above) times the number of injectors (8) and then divide by the brake specific fuel consumption (BSFC). This is a number that is closer to 0.5 for N/A applications and 0.60 to 0.65 for supercharger and turbo applications.
So a turbo LS1 running green top SVO injectors.
SQRT (60/43.5) * 42 = 49 lb/hr
(49 * 8)/0.65 = 607 HP at the flywheel.
15% loss through the drivetrain gives about 516 HP at the drivetrain. If you have an efficient turbo setup you may get around 550 out of the injectors.
They are rated at 43.5 psi so you take the fuel pressure that you are running divide it by the design pressure and take the square root.
SQRT (60 psi/43.5 psi) = Multiplier.
Take this number and multiply it by the injector - that is the real lb/hr flow you are getting from that injector.
Next to figure out the HP that the injector is going to support you take the injector flow (calculated above) times the number of injectors (8) and then divide by the brake specific fuel consumption (BSFC). This is a number that is closer to 0.5 for N/A applications and 0.60 to 0.65 for supercharger and turbo applications.
So a turbo LS1 running green top SVO injectors.
SQRT (60/43.5) * 42 = 49 lb/hr
(49 * 8)/0.65 = 607 HP at the flywheel.
15% loss through the drivetrain gives about 516 HP at the drivetrain. If you have an efficient turbo setup you may get around 550 out of the injectors.