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Injector Lag Time

GTR180

By GTR180,
in Engines & Forced Induction

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JonnoHR31 Grand Master

JonnoHR31

Posted
Posted

it'll mainly affect idle. if the rest of the map is good then it should idle much better. when i went from stockers to 555s i used the settings i posted on the previous page (albeit with a pfc) and it started straight away and ran perfectly, even drove it that way for a few weeks.

PM-R33 Grand Master

PM-R33

Posted
Posted

I can't see anything on the page?

It says the part about:

"This is by far my most popular addition, a preliminary version has been in circulation to Nistune users for some time. So those who don't use Nistune, here it is"

But then bellow it is a white screen?

Everything else on the site looks to work though. Good website by the way man, you do it yourself?

Don Dada Mentor

Don Dada

Posted
Posted

dunno bout every voltage but it should be close enough. im assuming when you enter +.18 into the power fc it just uses the same correction accross the board

yea in the pfc there are the two columns(injector) that you enter the change in size% and one for the change in ms...this is on the hand controller

Now noticed in datalogit there is the same two columns as the hc and also an Inj lag(ms) vs. batt V table similar to the Vipec table so do you adjust anything in this table when you change the injectors or just the two column (injectors) table and leave it at that??

PM-R33 .... maybe vipec has this same overall setting change in the software so you dont need to change that actual table you mentioned??

DVS JEZ Grand Master

DVS JEZ

Posted
Posted

U don't have to adjust the ms/Volt table unless ur AFR changes when electical loads are applied to the engine.

Then to set it disconnect ur alternator and as the volt slowly decrease set the ms/Volt table at the current Voltage to keep the AFR at idle constant.

Randon_I_Am Veteran

Randon_I_Am

Posted
Posted

what about the minimum injector pulse width?

I've adjusted my lag time to work well, but when I'm say cruising on a slight down hill, and only slightly touch the accelerator, i get spluttering, i watched and noticed my AFR's leaned out in this situation.

Am i correct in thinking it's got more to do with minimum pulse width than injector lag times?

Randon_I_Am Veteran

Randon_I_Am

Posted
Posted

fine with no throttle, fine with normal throttle. It's just that really low almost like resting the foot on the pedal kind of throttle.

When i say lean i mean about 17-18:1

14.7 with low throttle, 20+:1 (no fuel) with no throttle. But just the interchange between throttle and no throttle basically.

using NIStune with seimens deka injectors

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