Very intresting find on Bosch part#0280155868
06-21-2005, 04:11 AM
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Very intresting find on Bosch part#0280155868 I also posted this in the fueling section as a reference, but I really need to come up with a multiplier for my IFR table for these injectors.
I was trying to find out a little more info on my recently purchased injector. They are the standard injector supplied by ATI in it's base procharger kit for the GTO. ATI says they are 38lb injectors. They are supposedly the injectors that come stock in the GTP's. They are whiteish grey in color.
I googled them and they came up with a Bosch part #. I did some searching on Bosch and found them listed in a European Bosch motorsport catalog. Here is the link to the page:
http://apps.bosch.com.au/motorsport...elinjectors.pdf
It rates them at 261grams per minute at 3.5 bar. So if my math is right I can take the 261g/min /3.5bar=74.571428. Then 74.571428x4(58psi stock rail pressure)=298.28571g/min. HP tuners has g/sec to lb/hr. calculator so then I can take the 298.28571/60sec=4.9714285g/sec. Plug the 4.9714285g/sec into the conversion calculator in HP tuners and I come up with 39.46lb/hr injectors.
I hope I did all that right. What do you guys think. Bink said in a previous thread...
"Okay, I did a little investigating.........
The GTPs are 38 lb/hr at the GTP fuel pressure of 52 psi. This makes them 40 lb/hr at our 58 psi rail pressure. I then checked this against GM's 2000 ASA tune, Injector Flow Rate table, and the values between 100 kPa and 20 kPa are nearly identical.
I was told previously that these injectors are made by Bosch for AC Delco.
Mine are white body injectors."
So if I came up with 39.46lb per hour vs. his 40lb per hour that's pretty darn close. Just trying to come up with the multiplier for my IFR table.
39.46/28.8=1.370 multiplier?
I was trying to find out a little more info on my recently purchased injector. They are the standard injector supplied by ATI in it's base procharger kit for the GTO. ATI says they are 38lb injectors. They are supposedly the injectors that come stock in the GTP's. They are whiteish grey in color.
I googled them and they came up with a Bosch part #. I did some searching on Bosch and found them listed in a European Bosch motorsport catalog. Here is the link to the page:
http://apps.bosch.com.au/motorsport...elinjectors.pdf
It rates them at 261grams per minute at 3.5 bar. So if my math is right I can take the 261g/min /3.5bar=74.571428. Then 74.571428x4(58psi stock rail pressure)=298.28571g/min. HP tuners has g/sec to lb/hr. calculator so then I can take the 298.28571/60sec=4.9714285g/sec. Plug the 4.9714285g/sec into the conversion calculator in HP tuners and I come up with 39.46lb/hr injectors.
I hope I did all that right. What do you guys think. Bink said in a previous thread...
"Okay, I did a little investigating.........
The GTPs are 38 lb/hr at the GTP fuel pressure of 52 psi. This makes them 40 lb/hr at our 58 psi rail pressure. I then checked this against GM's 2000 ASA tune, Injector Flow Rate table, and the values between 100 kPa and 20 kPa are nearly identical.
I was told previously that these injectors are made by Bosch for AC Delco.
Mine are white body injectors."
So if I came up with 39.46lb per hour vs. his 40lb per hour that's pretty darn close. Just trying to come up with the multiplier for my IFR table.
39.46/28.8=1.370 multiplier?
