Apex ITC

[aves911]

Hey,

I recently purchased and installed an ITC, but the manual that came with it is in Japanese. So I was wondering if anyone on here has used one and how you tune with it. I have a AFC, EGT gauge, A/F gauge, and pocketlogger. I have heard that timing adjustments made with the ITC do not show up on the logger, if so, then how do you use it to tune accurately

 

[kpt4321]

Basicially, you set the boost where you want it, and then play with the ITC and the AFC to get a good level of timing and fuel.

Richening up the AFC will allow you to add more timing advance, but you don't want to go too rich.

I would suggest you start by adding 2-3 degrees of advance at every rpm point, and go from there.

 

[Phoenyx]

Actually, I would NOT start with the ITC yet. It is too delicate an instrument to mess up your engine.

Start with the pocketlogger and set your boost where you want it. Tune to get rid of knock with AFC only(you'll notice this with timing being pulled at the upper rpms instead of being relatively steady). Once you get rid of knock, start at the highest setting on the ITC and advance 2 degrees from that knob down to the second to the lowest rpm setting (you don't need advance at idle). I have mine set like so:

Button 1: 0
Button 2: +1
Button 3: +1
Button 4: +2
Button 5: +2

Try to make the buttons smoothly transition into the next (meaning don't have +1 then +4).

If you have any other questions, just PM me. When tuned right, it offers more power than you'll recieve with turning up boost.

-M

 

[kpt4321]

2g's are a good bit different to tune than 1g's, since the factry timing maps are so flat. You can afford to add a few degrees of timing.

WHy buy an ITC for a 1g, when you can just rotate the CAS a little bit to advance the timing by one or two degrees all the way across the board?


Or, you could just lean out on the SAFC a tad, and get the extra timing that way.

 

[crashed97tsi]

Sorry to stray off topic, but what is an ITC? I never heard of one

 

[gtrvspec01]

Iginition Timing Controller by APEX'I. I have one too, but when I take to DYNO tuned with my HKS GT25 turbo, there are no obvious gain. The S-AFC already did some timing work, so my ITC setting is 0, 0, 0 ,0 ,0