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Title: Dead times for Bosch Ev14 0280158124? Post by: ienciu on December 31, 2018, 12:53:09 PM Hallo,
Please help me with technical data & latency/dead times for Bosch Ev14 injector part number 0280158124... If somebody has the info.. Thank you, Title: Re: Dead times for Bosch Ev14 0280158124? Post by: ienciu on January 03, 2019, 04:57:39 AM Quick response from Bosch. Attached
Title: Re: Dead times for Bosch Ev14 0280158124? Post by: alessandro on March 29, 2021, 02:12:59 PM May I ask you where/how you contacted bosch? I'm looking for the values for another ev14 injector and they say that they have no idea...
Title: Re: Dead times for Bosch Ev14 0280158124? Post by: fabiott10 on April 10, 2021, 02:08:57 AM Hello, sorry for my bad english, I have the following experience with these injectors:
the spray level delta with these injectors is 90 degrees .. the 1.8t versions (APX) have a spray level of 270 degrees delta. That means: the injector sprays up and has to spray the valves but at a delta angle of 90 degrees it sprays downwards against the intake manifold !! This means that your fuel-air mixture is not optimally homogeneous due to the formation of fluid on the surface of the intake manifold. This is difficult to compensate for with small loads. See the picture in the appendix. My solution to this problem is to turn this injectors (0280158124) in the intake bridge by 180 degrees, you have to partially grind the plug of the injector because it comes against the intake bridge and extend it with a mating connector and some cable. My TVUB correction for Lambda 1, which I tried out, is as follows at 3bar, reg. 1,7408 1,1392 0,8160 0,6048 0,4416 Title: Re: Dead times for Bosch Ev14 0280158124? Post by: TeknoFi on June 13, 2022, 10:45:16 AM Hello, sorry for my bad english, I have the following experience with these injectors: the spray level delta with these injectors is 90 degrees .. the 1.8t versions (APX) have a spray level of 270 degrees delta. That means: the injector sprays up and has to spray the valves but at a delta angle of 90 degrees it sprays downwards against the intake manifold !! This means that your fuel-air mixture is not optimally homogeneous due to the formation of fluid on the surface of the intake manifold. This is difficult to compensate for with small loads. See the picture in the appendix. My solution to this problem is to turn this injectors (0280158124) in the intake bridge by 180 degrees, you have to partially grind the plug of the injector because it comes against the intake bridge and extend it with a mating connector and some cable. My TVUB correction for Lambda 1, which I tried out, is as follows at 3bar, reg. 1,7408 1,1392 0,8160 0,6048 0,4416 yes delta is 90 degrees but gamma is ZERO degrees. meaning they actually should have straight spray. No benefit from turning them. Title: Re: Dead times for Bosch Ev14 0280158124? Post by: TeknoFi on October 19, 2022, 09:52:58 AM I got my hands on these injectors.
Values given by Finjector seem logical. 0,464ms@14V@3bar (100% correct 14v deadtime is there around 0,45-0,60 depending on pressure.) I tried the values previously in the thread, but didn't get good result with them. Attached a photo of adapted FKKVS for these injectors (AJQ engine, stock except FPR.) My "final" good settings with a 4 bar pressure regulator: TVUB: 1.5735 1.0268 0.7334 0.5467 0.3974 Temin/Teminva: 0.4896ms KRKTE 0.0875 |