Measuring injector duration.

[Bruce Plecan]

----- Original Message -----
From: Chris Wilson <chris at maximum-bhp.u-net.com>
To: DIY_EFI Mailing List <diy_efi at efi332.eng.ohio-state.edu>
Sent: Tuesday, April 20, 1999 4:30 PM
Subject: Measuring injector duration.

Quick/easy way is just hooking a Dwell meter, across the injector, reads 90d
dwell, and just convert to % duty cycle.
Bruce


> I want to mod a Supra twin turbo.It's a Jap import,to the UK here,and as
> such,has some subtle differences from the US/UK model,so I have to move
> carefully.I don't want it to run weak...
>
> How can I best measure how close the injectors are getting to their
> maximum duty cycle,please?
>
> How can I best keep a watchful eye,in real usage,of the mixture strength?
>
> Please bear with newbie questions,I am not at all familiar with modifying
> road car engines with OE injection systems on them.Using a dedicated
> aftermarket mappable ECU on race engines suddenly seems a lot easier than
> playing with existing "unadjustable" systems.
>
> BTW the Jap import Supra twin turbos use MAP sensor,not an airflow
> metering unit.
>
> Thanks.
>
>
> --
>                Best Regards,
>                         Chris Wilson.
>
>
>