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View Full Version : Need help/confirmation with Delphi 42lb (01D030B) injectors



wcj
March 17th, 2012, 03:04 PM
I searched and found some misc information here and there on these injectors. What I have been able to determine is the IFR. I did this using the injector flow information (http://www.racetronix.biz/itemdesc.asp?ic=01D030x&eq=&Tp=) in the xls worksheet.

The injectors are rated at 42.29 (using n-Heptane solvent at 0.6855 g/ml). I multiplied 42.29 by 1.035 based on 0.735g/ml flow rate for gas according to EPA tests. At 4 bar (58.015 rail pressure), this put my injectors at 50.54lb.

With this information, this is what I came up with for my IFR.

LABELS Injector Flow Rate (Grams/Second)
Manifold Vacuum kPa {link: GM.MANVAC} Value
0 6.367188
5 6.406250
10 6.445313
15 6.484375
20 6.523438
25 6.562500
30 6.601563
35 6.640625
40 6.679688
45 6.718750
50 6.757813
55 6.789063
60 6.828125
65 6.867188
70 6.906250
75 6.937500
80 6.976563

With these injectors, do I need to adjust B4003 and B4005 as well? I found this worksheet doing a Google search. Should I use those values?

12788

DrkPhx
March 19th, 2012, 02:08 PM
Make sure to measure the fuel pressure at the rail with a mechanical fuel pressure gauge and adjust the IFR from there. There's a nice IFR calculator in one of the sticky's here where you input the inj data which comes up with EFILive data you can copy and paste. Since there are no specific values for these injectors you can try the inj pw in your spreadsheet, use the ones below or even use the stock values. It will take trial and error to find out which set work best.

0.89666
0.89666
0.89666
1.00304
1.00304
1.00304
1.00304
1.00304
1.00304
1.10942
1.20061
1.20061
1.20061
1.20061
1.00304
1.00304
1.00304
1.00304
1.00304
1.00304
1.00304