Looks like x axis is time, and Y axis is each parameter.

From the graph it looks like the idle has a slight lope to it (hard to say because I dont know the scale of the RPM graph).

Also, from what I have heard, the AEM sometimes needs an injector resisitor box to control injectors larger than 1000cc in order to get the car to idle properly. Has anyone had this problem with injectors larger than 1000cc?

 

yeah thats bs, they are just trying to get you to buy something else as far as i can tell ive tuned 3 cars with injectors over 1000cc's including my own with 1600cc's and i had mine idling perfectly within a minute of tuning

 

You are correct Brian! I did not read his post to well. I took a quick glance at it and thought he was talking about the AEM Pro software itself.

thanks






The issues that have not been discussed here are heat and response time. If using a low impedance injector with a saturated driver the driver will eventually over heat. I am not saying you can not do it as I have in a pinch to get a car running. But if the drivers do get hot enough they will shut down. You can see the problems that would cause. Also driving a large low impedance injector with a saturated driver will cause a slow injector response time.


There is a good explination on AEM's own Website...

http://forum.aempower.com/forum/index.php?topic=4291.0



Chris Macellaro

 

getting ANY car to idle with 1000cc inj must be a pia

 

My car idles perfectly fine with 1000cc injectors, 272 cams, and the idle is set to 950rpm @ 13.6 AFR.

I recently changed the AFR to 14.5 and it still idles nicely though a lope is slightly heard.

 

you need to go to the injector wizard, choose your new injector size. Then you have to recale the base fuel table. Then retune the whole fuel table.

 

Are you using an injector driver box????

 

No I do not have the injector driver box. My MicroSec/bit is set at 15 uSec and my fuel table in raw view does not go beyond 183.