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Old 04-24-2011, 07:11 AM   #1
87hilux7mge
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Default High or Low impedance injectors?

aight so i need a lil advice. i have been doing TONS of research on injectors recently, cuz i have a few options for my application.

it will begin as an N/A 7mge, bored .50mm over, balance rotating assembly using N/A pistons, HKS 1.2mm MHG, street ported/polished cylinder head with polished valves, stock cams, adjustable cam gears, 9.48:1 compression, full header and 2.5 inch exhaust with some sort of muffler, all running off Megasquirt 2 v3.0, map based.

then after the motor is broken in properly, i will be aquiring parts for a supercharger addition, particularly an eaton m90, ported, polished and rebuilt. i will run through a FMIC, and also be running water/methanol injection (found a company that makes an adapter if anyones wondering how), probably around 5-7psi max.

i have 3 sets of injectors right now: stock GE injectors (too small for the boost probably), LS1 style 36#lb hr injectors from the S/C motor, or a set of flow-matched 440cc GTE injectors. the GE and GTE injectors are LOW impedance, and the LS1 style injectors are HIGH impedance.

so, for my application, what would you all do? use stock GE injectors, then swap in the higher flowing ones when i S/C, or just throw in the higher flowing ones? at that point, would you go high, or low impedance?

after reading, id say high impedance are the "less efficient" in terms of power consumption and possibility of slower pintle opening and response time, but they also create less heat and dont require a resistor pack. low impedance would be great, but they need a resistor pack. i should be able to over come this since ill be running MS, but i have yet to call the MS guys and confirm, so im looking for a lil bit of feedback.

LEMME KNOW!
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Last edited by 87hilux7mge; 04-24-2011 at 07:16 AM.
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