Well i have to back stevEVO8 with this one. He is right. You should turn down the boost becouse it could be causing detonation and retarding the timing. You should also if you have a AFC and try adding some more fuel becouse it could be leaning out and that is not good at all!!! Just right down you settings and save them and try messing with the AFC adding fuel here and there and see what happens with the knock reading. If the knock reading goes down then slowly lean the car out until you start to see knock agian and then back it down to the previous setting and you will be good to go. This will take along time so i would try turning down the boost first and watch the knock to see what happens. GOOD LUCK!

Chris

 

so who's he? why do you keep saying that?

 

cecilia, what's your problem, everyone is trying to help you and you just think you already know more than everyone else, so why don't you go try to fix it yourself. I agree with stevEVO8's suggestions too, so maybe you should just TRY it.

 

My bad, I didnt realize you were the one that started the thread.

I just assumed that it was a guy that started the thread. didnt mean to say you were a guy if you werent.

 

I agree here also. If you dont have a boost controller then change your settings on the AFC in the RPM range that you are experiencing knock. Do a little at a time as was suggested.

I would assume that you might be running lean or getting det due to the 91 octane that you are getting.

I also see a little knock even at idle sometimes. But I would not worry about 10 - 20 at idle. I would worry about the 80's though especially if you have already zero'd out the AFC and this is in the higher RPM range.

 

I think you're leaning it out too much w/ the SAFC... Correct me if i'm wrong but the buschur settings are for 93 octane... its better to be on the richer side and work your way from there...

 

so buschur racing afc readings aren't good or what?? do we still have to mess with them? because thats how i did it...just set them in there and left the afc how they told me to leave it at....i'm ordering the turboxs manual boost controller it should be here today.....do you think that would help me a little?

 

Either changing your settings or lowering your boost would probably help.

What RPM range are you getting the high knock values? try adding 1% of fuel in that range to see if it lowers your counts.

Did you zero out the knock readings in the AFC Before changing the settings in the AFC?

If I remember right they did change some settings for the low throttle as well. but I dont remember is they added or subtracted fuel in the lower rpm range.

 

well like i said my knock sensor went to 82 at 7643rpms....and i haven't really messed with anything else since.....

 

If you are getting knock at that RPM range try adding 1% of fuel and then test again.

If I remember correctly their settings are -17% in that range.

 

so instead of the 17% put it at 18??

 

No. Right now It reads -17% which means your are leaning out the fuel.

Add 1% and bring it back to -16% and test. Start adding 1% in that range moving towards zero.

Or zero out the AFC settings completely and test to see if you still get the knock in that range.

 

well i spoke to jared at buschur racing and he told me that the knocking sensor for our evos is not accurate at all he told me not to worry about it what do you guys think??

 

Well thats open to interpretation.... It may knock at almost any engine vibration causing excessive knock counts.

Although an increase in the normal amount of knocks that you would see without the settings in the AFC could be bad.

For instance, if you are getting 80 knocks at 7000 rpm with the AFC settings at 0 and you have not zero'd out the knock readings in the AFC; then you put in the changes and you are getting 120 knocks in the same rpm range then you would be seeing an increase in knock.

I would put your AFC settings back to zero and then zero out the knock sensor as indicated in the AFC guide. This will help the AFC know what is noise and what is abnormal knock. Once this has been done run your car and see how high the knock counts get. the add in your buschur settings and see if you get a higher knock count than when you were not running the buschur settings.

i can tell you that I have the bushcur settings in my AFC and I have very little to no knock almost all of the time. These low knock counts can usually be ignored. but I do notice If I get some crappy gas that the knock counts go up and the ECU is pulling the engine timing.

I am not saying that Jared is wrong or saying that I am right. I however would do the testing your self to see how your car reacts to the settings after zeroing out the knock counts in the AFC.