Pull 1 or 2 degrees of timing there and run another data log and see if its still present.

Your power is rather low for 13psi. It makes me wonder if there is indeed something we need to get to the bottom of here. One of the first things id do is pull your plugs and take a look at them, if you dont have a trained eye, your best bet may be to post pics here for us to look at, making sure you keep track of which plug came from which cylinder, just in case we do see an issue.

 

Pull 1 or 2 degrees of timing there and run another data log and see if its still present.

Your power is rather low for 13psi. It makes me wonder if there is indeed something we need to get to the bottom of here. One of the first things id do is pull your plugs and take a look at them, if you dont have a trained eye, your best bet may be to post pics here for us to look at, making sure you keep track of which plug came from which cylinder, just in case we do see an issue.
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I actually just had a retune on Wednesday and it was making 387 with 135 IAT and hit 15psi of boost at 8900rpm.

We saw knocking and he took off some timing and he concluded that the ecu might think the car is knocking but it actually isn't if I was hitting the rev limiter?

I actually have no idea which area to pull timing off of in the map

 

Get an Etune or...

read the AEM manual and know it by heart.

http://www.aemelectronics.com/Images...%2030-6905.pdf

and then follow this thread ..

https://www.s2ki.com/s2000/topic/946...-ems-series-ii

OR Quick and Dirty..
1. Save original map
2. Highlight ignition timing rows 1.0 to 12.9 and subtract by 2
3. Log WOT run; engine speed, Knock volts, ign timing, O2#1, throttle%.
4. Highlight ignition timing rows 1.0 to 12.9 and subtract by 2
5. Log WOT run; engine speed, Knock volts, ign timing, O2#1, throttle%.
6. Highlight ignition timing rows 1.0 to 12.9 and subtract by 2
7. Log WOT run; engine speed, Knock volts, ign timing, O2#1, throttle%.


Read logs and check for knock volt spikes vs. timing


You need to scale your map above 16psiG to tune those areas...
Put on a mechanical boost gauge and monitor for actual boost at WOT and compare to the EMS.

 

Maybe a misfire. What are your plugs gapped at?

 

Thanks for your info

Do I just take timing off from 1-12.9 at 8500-9000 rpm range?

Do you think it's knocking because I'm reaching over 12.9 psiG? Datalogs shows that I'm hitting 16psiG

I've also noticed that the timing drops and stays around 18.2 when in the tune it's suppose to be 15.3 from 8500-9000rpm does it have something to do with the ign timing sync?

How do I scale it to 16psiG to tune it?

Thanks again

 

First of all, is your CTSC (supercharger???) capable of 16psiG boost? An accurate mechanical boost gauge comes in handy.

What MAP sensor are you running??? Possible MAP sensor settings are off....

Quick and Dirty...just highlight all the cells above 1psiG and decrease timing by 2. You just want to see if your knock volts decreases. You can refine to specific RPM's later. It's all about experimentation and see what works for you.


It is important to verify the timing ignition sync with a timing light. Who knows what was changed on your tune base map and/or if your tuner bothered verifying it. [Most of the time the timing sync does not need to be changed. If the timing sync is off, your ignition timing sync may be off by a couple degrees or more.]

One way to test if you can scale to 16psiG is to select the cell 12.9 under [Ignition] and hit the + sign. This is dependent on what map sensor you are running...

 

The supercharger is only capable of handling 15psi of load and on the Dyno I was hitting 15-15.1 psi on the gauge and as well on the dyno.

Im using a SOS 3 bar map sensor and the tuner did sync the timing with a timing light saying my previous tuner tuned it with a off sync timing.

I will attempt what you told me to see if I can eliminate the knock. I will also contact my tuner and see if he would help.

I'll update you. Thanks again

 

I called my tuner and found out that he set a ignition timing trim after vtec and he lowered it and sent me a new MAP

I tried it and it still knocked so I set it to 0 all together and the knock volts instantly dropped to 3.8 as timing actually went to 15.3*

I removed 1* from 8600 and 9000 rpm at 12psiG and at 14.* peak knock volt is at 2.73

At this point should I still lower the timing or is it inn a safe range?

 

Post timing map please.

 

Probably need to get a new tuner....

Engine load is at 15.1 PSiG on your log. Your map goes up to only 12.9. WTF is that? How's your A/F at above 12.9? I assume timing would be 15.7 @ 15.1 PSIG.

*Make sure you sync your ignition timing at the crank and the AEM EMS. LINK HERE https://www.s2ki.com/s2000/topic/945...ow-boost-tune/

If the sync is off, WE don't really know what ignition timing you are running.



For logging, follow these parameters. Add A/F also. Here's an example of the timing changes related to boost.