Retarding Timing on 1G

[want_a_gsx]

So I decided to go with 2g Pistons, and figured timing must be changed. Here I have a pic of what the timing will look like, using ds-map. The timing changes were done from 9.50 - 14.80 psi

For you 2g owners, how does the timing look? How about off-boost timing? I want to make sure that when the car is running, there isn't any detonation caused by aggresive 1g timing on higher compression pistons.

Thanks in advance .

 

[1992awdlaser]

This is the stock 2g timing curve. Just make it look like this.

 

[JayRolla]

Dont worry about off boost timing you will be fine unless you add timing. Since you can make a custom timing map do what is good for your motor. On pump gas I would run 14-16* at most to get as much boost as possible and a rich afr around 10.9.

 

[99gst_racer]

Detard?

 

[want_a_gsx]

Lol, my fault 99gst racer, I noticed the misspelled word and couldn't make the correction. I went ahead and sent Ludachris a message last night and figured it would be fixed by today...

Yeah, I'm planning on running 10.82 afr for the most part.
That's a pretty handy chart you have there. I really don't want to risk detonation, so I will start out with a max of 15-16*.

 

[want_a_gsx]

Referring to the chart, why do I need to start retarding timing at 1500 rpm and progressively increase it after that? Doesn't the ECU do that on it's own once it realizes the engine is at WOT and there is more air coming in?

I just thought the ECU did most of that work even if I didn't tell it to (set the timing charts to do so)...

 

[1992awdlaser]

The timing chart I posted is what the ecu will target from the factory for a 2g. It's the stock timing curve.

I don't know how dsmap works, but it looks like you input the value you want the ecu to target. If this is the case you would just make your table look like the chart I posted.