so im sure theres alot of you out there that are pretty good at tuning. just wondering what you have for you IACV target values for the idle control. im attempting to tune my car for the first time on neptune RTP and we have a bank of 7 user specified ECT's where you also specify the target RPM for that ECT. so what temp corresponds to what RPM? any help would be greatly appreciated.

 

Jacob, that could be something that you use to simulate a fast idle valve since you don't have one anymore (I think?).

I've never worked directly with the numbers, so I'll assume about 50 deg for coldest and running temp to be about 180. It is probably more like 200, but anything over 180 should be plenty hot.

If you've got 7 slots, that leaves about 20 deg between each slot.

I'd set it something like this

<50* - 2000rpm
50<t<70 - 1800
70<t<90 - 1600
90<t<110 - 1400
110<t<130 - 1100
130<t<150 - 950
>150 - 750

I went back over that a few times, you'll probably also have to after figuring out some real numbers. I just left it so that you'd be sure to not be idling high when at "running temp"

If you have a pyrometer (or just datalog thru neptune) you could get an idea of the temperatures for an average cold start and then figure out the highest you want the idle to be when cold, and take it down linearly from there.

Good luck with the tune bud

 

im really hoping someone has a good idea of the stock values. but right now im using the default ECT values and set my own RPM values. these dont seem too bad but i just want to know if anyone has a better idea .


0 ------1600
67-----1300
85-----1200
103----1100
140----1000
177----900
250----800

 

250 is WAY hot for running temp

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mgags7 &raquo;</TD></TR><TR><TD CLASS="quote">250 is WAY hot for running temp</TD></TR></TABLE>

The ECU interpolates everything so having a "higher than you'll ever see" value specified is a decent idea. But set up like that it will be shooting for higher than 800 for sure.

Mine are the defaults I think:


I wouldn't worry about it too much, as long as it mostly seems to behave like stock.

 

I hate to butt into this thread but its got my intrest.

Question

When you are tuning your own car do you have to manually set every single thing for every tempeture, from sensors to air/fuel?

Im intrested to know what the screen looks like for something like a hondata set-up, or mabey crome.

 

you can go to hondata's website and get a demo of the rom editor.

 

good stuff^^^thanks

 

Nevermind I think I found it. The hondalogger stuff.