Injectors and resistors

[Jemison Richard]

Sandy,

I might be interested in 1 or more of those boards.  What kinda money we
talkin' and how many do I need.  I'm trying to efi a 4 cyl inline motorcycle
(4 stroke) with 180 degree crank.  I intend to fire the injectors in
parallel (2 at a time).  

thanks

Rick

> -----Original Message-----
> From:	Sandy [SMTP:sganz at wgn.net]
> Sent:	Tuesday, November 24, 1998 12:12 AM
> To:	diy_efi at efi332.eng.ohio-state.edu
> Subject:	Re: Injectors and resistors
> 
> If you want to drive Peak and hold check out the EFI332 web site for
> SUBDRV.EPS for the schematic. I have a few board I might part with.
> 
> Sandy
> 
> At 11:34 PM 11/23/98 -0500, you wrote:
> >
> >-----Original Message-----
> >From: Richard Wakeling <kojab at ar.com.au>
> >To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
> >Date: Monday, November 23, 1998 11:25 PM
> >Subject: Re: Injectors and resistors
> >
> >How many injectors are you driving this way, with the 10 ohms?
> >Bruce
> >
> >
> >>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
> >>
> >