It is important to understand that the fueling calculations used by GM are based on an air mass per cycle which is then converted to a fuel mass based on the requested air fuel ratio. Set your regulator to 45lbs.While the injector characterization data used by General Motors is surrounded by mystery and misinformation, its purpose and practical use is actually quite simple. Great you got that tiny little thing out! Don't lose it!!!! The poppet is designed to open at about 40lbs of pressure. If you are using a heat gun it only takes a few seconds to work it out, but if you over heat the tubing it will become brittle and increase the chance of making your problem much worse. You will only have a few second at a time to work the poppet out before it needs to go back in the pot.īe gentle and it will come out. As soon as you pull the poppet out of the water start to work it out of the tubing with two pairs of pliers. You will need the following in addition to your o-ring kit 1. Ford uses quite a bit of it, as does BMW. They need to be able to hold 60lbs of fuel pressure. Did you use this instructable in your classroom? Add a Teacher Note to share how you incorporated it into your lesson.Īt this point you have pulled the injectors from the fuel meter body, you have your injector reseal kit with all of the o-rings napa and everyone else has them. I am not responsible for any kind of damage or injury you may cause yourself or your car. Bosch hose-end CDH K.I hope I can take some of the Dark Voodoo power away from the notorious Vortec injection spider. By accessing our data, you are agreeing to the above conditions. Click your Back button to return.Ĭlick here to read why shops get varied results This data was obtained from actual flow bench testing at our shop and should be used as a guide only. Copying or republishing any pictures or test data is not permitted without written authorization from WitchHunter Performance. The injector information here is provided for your convenience, so feel free to link to this page. This data may not match the other published data. Injector Specs: GM Fuel Injector Identification And Cross-ReferenceĪll flow tests were performed at In some cases the readings are an average of many tested injectors. WitchHunter Performance shall not be held responsible for any errors. This data was obtained from actual flow bench testing at our shop and should be used as a guide only. Click here to read why shops get varied results. Many sites have fuel injector flow data but most of the data was copied from various places using different methods, test pressures, fluids, etc.

Gm fuel injectors identification