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baseinjectordata

Injector Data Compilation

These values were gathered from various sources. These may not match exactly with the values you've seen elsewhere, but they should be fairly close. The problem is that each injector can behave a little differently from another of the same size and manufacturer. So there's some variation that simply can't be accounted for in all cases. Start with the values listed below and fine tune from there.

All of these values assume stock base fuel pressure (37psi for 1Gs and 42.6 for 2Gs). Deadtime is listed as an adjustment to be entered into the ECMLink application, which is then applied on top of the calculated stock adjustment. For more details on how to adjust for varying fuel pressure or how to use the fuel adjustment tab in ECMLink, see the Fuel Settings page.

Brand/Vendor Size Global Deadtime Notes
(cc) (%) (µsec)
Denso (stock) 450 0 0
Denso 660 -31 180
Denso 720 -38 405
Fuel Injector Clinic (FIC) 650 -31 210
Fuel Injector Clinic (FIC) 750 -40 330
Fuel Injector Clinic (FIC) 850 -47 330
Fuel Injector Clinic (FIC) 950 -53 330
Fuel Injector Clinic (FIC) 1000 -55 330
Fuel Injector Clinic (FIC) 1150 -61 330
FIC/Bosch/Ford 1600 -72 450
Hahn Racecraft 625 -18 180Actual flow: 530cc
Nippon Denso (ND) 660 -31 180
Nippon Denso (Evo VIII) 560 -18 0Has lower deadtime than OEM 1g/2g injectors!
PTE / Delphi 580 -17 180Modified GM Rochester 17113741 injector. Actual flow: 535cc
PTE / Delphi 680 -29 300Modified GM Rochester 17113814 injector. Actual flow: 640cc
PTE / Delphi 780 -38 315Modified GM Rochester 17113742 injector. Actual flow: 748cc
PTE / Delphi 880 -45 420Modified GM Rochester 17113743 injector. Actual flow: 840cc
PTE / Delphi 1000 -51 450Modified GM Rochester 17113744 injector. Actual flow: 940cc
RC 550 -18 180

E85 Note

These values are for GASOLINE ONLY - they do NOT apply to cars running E85! E85 has a stoichiometric A/F of 9.8526:1 while gasoline is 14.7:1. So E85 should require around 49% more fuel than gasoline (14.7 / 9.8526 = 1.49). So for 850s (as in my car) with pure E85, I would run:

450 / ( 850 / 1.49 ) - 1 = 450 / 570 - 1 = -0.21 or -21%

Using that formula works perfectly on my car. For even more E85 data, see the E85 notes page.


E85 Air Flow Support Chart:

This chart outlines the approximate max airflow which can be supported for a given duty cycle and injector flow rate on E85. 43.5psi base fuel pressure is assumed.

Injector Size 100% IDC(lbs/min) 80% IDC (lbs/min) Global (E85)
390cc 21.80 lbs/min 17.44 lbs/min Not a good idea
450cc 25.15 lbs/min 20.12 lbs/min Not a good idea
550cc 30.74 lbs/min 24.59 lbs/min Not a good idea
580cc 32.42 lbs/min 25.94 lbs/min Not a good idea
650cc 36.33 lbs/min 29.07 lbs/min Not a good idea
660cc 36.89 lbs/min 29.51 lbs/min Not a good idea
680cc 38.01 lbs/min 30.41 lbs/min Not a good idea
720cc 40.24 lbs/min 32.20 lbs/min -6.9%
750cc 41.92 lbs/min 33.54 lbs/min -10.6%
780cc 43.60 lbs/min 34.88 lbs/min -10.4%
850cc 47.51 lbs/min 38.01 lbs/min -21.1%
880cc 49.19 lbs/min 39.35 lbs/min -20.2%
950cc 53.10 lbs/min 42.48 lbs/min -29.4%
1000cc 55.89 lbs/min 44.72 lbs/min -33.0%
1150cc 64.28 lbs/min 51.42 lbs/min -41.7%
1200cc 67.07 lbs/min 53.66 lbs/min -44.1%
1600cc 89.43 lbs/min 71.55 lbs/min -58.1%
1850cc 103.41 lbs/min 82.72 lbs/min -63.8%
baseinjectordata.txt · Last modified: 2010/06/14 11:57 by turbosax2