Measuring injector duration.

[Chris Wilson]

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.