Injectors and resistors

[Richard Wakeling]

Hi Steve,
	Use 10 ohm 10 watt with each 2.5 ohm injector. It will work but wont be
as good peek n hold. The other possiblity is to fit an extra driver to
the 808 and and get them to drive three injectors each peek n hold.
Cheers Richard.

PS My Toyota has been running 2.2 ohm 750cc/min with 10 ohms for over
three years with delco 808. Idle was a bit tricky to tune.

Steve Lamb wrote:
> 
> I need the assistance of and EE......
> 
> My next major project is to get an 808 ecm to drive a Nissan VG30DET
> engine.  This a 3L Quad Cam 24V single turbo engine.  We believe we can
> solve the main hardware issues to overcome (TB's and ignition system), but
> one issue remains a thorny one...low impedance injectors (6, to be exact).
> 
> I'm reliably informed that the 808 will not drive 6 low impedance
> injectors.  One alternative would be to change the injectors, but this
> would add quite a bit to the cost.  Another possible alternative is to try
> what Nissan did with its early L-Jet based systems......use a resistor in
> series with each injector and thereby increase the total load (?) seen by
> the injector driver.
> 
> Can anyone see why an 808 ecm would or wouldn't work when used in this way
> ??   I was thinking of using 6 Ohm resistors, which is what Nissan use in
> conjunction with their 2.5 Ohm injectors.
> 
> Thanks
> 
> Steve Lamb
> Department of Defence, DSTO
> Aeronautical and Maritime Research Laboratory
> 506 Lorimer Street
> Fishermans Bend  VIC 3207 Australia
> 
> Tel: +61 3 9626 7525
> Fax: +61 3 9626 7089
> 
> IZCC #180