Kimmo Mäkinen Posted February 20, 2014 Report Share Posted February 20, 2014 Hello everybody I,am looking a what kind duty cycle must be 1680cc injectors ?. Engine is four cylinder . Sorry my pooring English Quote Link to comment Share on other sites More sharing options...
Kelly Gordon Posted February 20, 2014 Report Share Posted February 20, 2014 You need to know you r B.S.F.C., engine displacement, volumetric efficiency, expected boost level, and a host of other things in order for you to estimate your injector duty cycle. Odds are on most 4 cylinders you will have more than enough fuel with 1680 c.c. injectors unless you're runningin in excess of 40 psi and ethanol.   In short, no one will be able to tell you what you ask for with the data provided. Quote Link to comment Share on other sites More sharing options...
Kimmo Mäkinen Posted March 18, 2014 Author Report Share Posted March 18, 2014 Nobody cant help me !? Quote Link to comment Share on other sites More sharing options...
Scott Posted March 20, 2014 Report Share Posted March 20, 2014 Hi Kimmo, As Kelly said, there are a lot of factors that come into play when trying to calculate the correct base pulsewdith (master fuel number in PCLink). If you do not have the required data my recommendation would be to set the master fuel to 16 ms, if the engine will not start and is getting too much fuel (check the spark plugs) reduce the master fuel number. Once you have the engine running you need to get a wideband oxygen sensor so you can tell if the air to fuel ratio (AFR) is rich or lean. You will then adjust the master fuel and fuel table numbers to get the correct AFR. Cheers, Scott Quote Link to comment Share on other sites More sharing options...
Kimmo Mäkinen Posted March 20, 2014 Author Report Share Posted March 20, 2014 Hi Thank you ! I try that first  . Kimmo Quote Link to comment Share on other sites More sharing options...
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