Quote:
Originally Posted by winders
Dan,
The Bosch injectors will have an improved spray pattern if you bump the pressure up to 60 psi and will also decrease the duty cycle which would be a good thing in your case.
If you don't have a fuel damper, I would recommend installing one. When I installed the FPR I listed above, my MoTec M150 traces for fuel pressure smoothed out.
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So in my last post I had turned up the fuel pressure from 38 psi to 55 psi, saw a reduction in AFR and adjusted for it by decreasing the cell values in the VE table.
Today, I went out and turned the fuel pressure up from 55 psi to 60 psi as Scott (winders) had recommended.
Happily, the AFR did NOT change so now I can have the benefit of an improved spray pattern and know that variations in the fuel pressure well above the 43.5 psi max injector flow pressure are not effecting the amount of fuel delivered per injector cycle.
I have a dyno tune session scheduled for next Tuesday and I will report more test results then.
Living and learning....