how to change afrs and ignition tables,,, and not blow an en

[pumba]

Hi all,

My first attempt at tuning and i'm not 100% on what are good afr rations...
and are these affected by the ignition timing or are they indipendant.

eg can i tune the fuel map first then tune ignition
or should they be done simultaniusly.??

eg2 if i go too lean in a certian area in the fuel map it will ping so i back off the ignition right?, when i correct the fuel map , i will have to redo the ignition.

so in a nut shell what is the process everione follows?
thanks

[Fusion Ed]

Have a safe ignition map to begin with, then get afr slightly richer than needed (say by 0.5 afr) then do ignition, if you hear pining your way past where you should be, retard it, by several deg, ignition comes to experience much more than fuel which is mostly the same across engines to a point. engines usually use from 50 (no load/over run)- 10 degrees or more (max load/low rpm) and anywhere in-between, Min ignition will occur at max torque on any engine.

[Matt]

There are several tuning guides for other systems such as Zemulator and Bikirom which people have put together.

For NIStune Pete is in the middle of our tuning guide, so will have something soon

[s12ka]

any luck on the tuner guide im not sure were to set my tp spots at for fuel and timing. because i am only running in the far right bank its at 10 tp and im at 11 tp at idle running 370cc sr injectors

[crans]

ANy chance we can have a sneek peak at the tunning guide

[Matt]

I'll post the current one but pete has been working on it a bit more since now

[Matt]

I've asked Pete for an update... and here it is

http://www.plmsdevelopments.com/files/n ... basics.pdf

[blu3man]

my ignition timing table was based of petes and a few other peoples.

Fuel map is alot easier. afr gauge