Originally Posted by
Marc sierra
I know that Bosch 803 injectors have a flowrate of 382 cc/min and are good to about 350/360 bhp. The Siemens 55lb should do 570 cc/min, but what power are they good for? And the same question for Siemens 72lb and 83lb. Can you simply scale the power linearly with the flowrate?
The injectors are only one part of a Cosworth YB power upgrade. Camshafts,cylinder head modifications, ecu, chips, inlet and exhaust manifolds and turbochargers etc can all vary and 2 cars using the same injectors could have widely different power levels.
Unfortunately you cant say by fitting say Siemens 55lb injectors I will get 400 bhp or 83lb injectors will give me 450bhp it all depends on the rest of your modifications.