For Evo 5 and 6 xmls, have a look at geekmapped. You may need to register.

http://www.geekmapped.com/forums/forumdisplay.php?f=9

 

How should I increase the multiplier to not set too high ? I think will fill up the car with 100oct fuel and runing on 19psi flat boost 11,3 afr tapper to 11 to redline and timing like would be right for 91 oct ( 3 @ peak and 10 @ redline ) and increase the knockbase by the multipliers until see any knock ?
I have lot of knocking just rev up at idle.. 36 counts.
Now much better if I increase the multiplier to 17,25, 24 :O But I wouldnt like to set it too high.

After a reflash an Evo 8 will learn again the knockbase and need some pull to set in ?

 

I am trying to figure out if my knock is real or just phantom knock. I logged knockbase and knock adc and made a chart in excel, but it does not show the knock events on the chart? Anyone care to take a look at my chart and log and give me some advice?
Thanks
Mike


as far as i know knock control settings are stock, I do have twin disc clutch, ams balance shaft delete, HKS 280 cams and polyurethane front motor mount. My motor has roughly 40k miles on it.

Heres my knock control settings. knock multiplier low mid high left to right and knock load.

 

Looks like it might be false knock, however to be sure do a pull on 100+ octane gas and see if the knocking goes away. If it does, chances are pretty good it was actually real knock.

 

Standard MUT logging isn't fast enough to capture all of the threshold breaks.

 

How do I log correctly- or faster?

 

With DMA.

But, if you're simply trying to find out if your knock is phantom knock or not, either use higher octane gas and see if the knock goes away or reduce timing in the affected area and see if knock reduces or goes away.

Generally, phantom knock will appear at the same RPM range and same intensity over and over with no response to any tuning or octane.

 

Nice! Thank you very much for you help, I will try reducing timing as soon as I get home.

 

I don't know if I should ask here, since this is an "evo" forum, but would someone be willing to look at my base lancer rom, and see if the "knock multiplier" I have defined (courtesy of RoadSpike) is the only multiplier, or if there is a second one. I have all 3 in the 9653 set to 18, since I only think I have one in the base lancer rom...but it would make sense to reduce the low rpm one to 13, I just wish I knew if that's what it is in the base lancer rom as well.

The custom 16g turbo crowd is trying to sort out the knock sensor, and determine what we should safely be using. In our ROM, we have 3 and 5 single and triple gain respectively. If someone wants to check the mutliplier to see if there is a second one, you might also confirm that the adders are correct. The second part about that question is, would it be best to use the same adders from the base lancer rom, in the tephra 9653 rom I am using now? Or, do I just have to use det cans to confirm they are properly set, no way to copy them over with reliability?

Also, just for fun, if you want to look, here is a post where I've got some graphs of my adc vs knockbase. I set my knock loads down to 10, just to see what all gets picked up. https://www.evolutionm.net/forums/8861131-post247.html

 

Does this look legit for trying to filter out some bull**** knock?

I've been running it like this for a few weeks but I'm starting to wonder if I'm going overboard.

I don't want to miss any real knock that may be missed with these settings.

What do you think. 90 load doesn't seem to high to me but I'm wondering more about the multipliers.

thanks

Really just hoping some other guys will post the settings that they been using.

 

Is that a stock motor motocooney? i ussually dont go over 18 on the middle unless the cars really knock prone with false knock, but yes those numbers are within reason. set the slow knock back to 3 tho and the other keep at 6

 

this is not true. if you throw in higher octane fuel and it goes away then that indicates its real knock. Im sure its what you meant to say though.

 

It's stock bottom end with Crower 280 cams and supertech springs and retainers.

I don't know if you remember but I PMd you with some questions about this.
I was seeing counts of 24 and 30 out of nowhere. Totally inconsistant. I tried lowering the timing in these areas a lot, like cut in half and was still seeing counts of 10-12.

I'll set the middle back to 18 and the slow knock to 3

I had it set to three but got sick of seeing it flash. Knock sum of 3 doesn't seem that bad. Especially cause i was only seeing it at part throttle low load situations.

thanks
Chris

 

Woopsie, yes that's what I meant to say, thanks for pointing it out. I'll edit my post.

 

if you do a lot of testing and cant get rid of it then you have no choice but to tame the sensor to work with your engine noises. just be careful not to remove real knock. maybe log voltage also and compare the phantom knock voltage with regular knock and get a feel for the phantom knock voltage level vs real knock voltage if possible.