Sorry did not mean to sound rude. I too am curious about how good the AEM knock control is especially for strokers and highly modified cars. I know of someone down here with AMS stroker and 35r with AEM. He is seeing knock at like zero timing and modest boost I heard through the grapevine. I think they think it is false knock, but again, headphones would solve issues like this. I tried to tell them!

[edited for grammar]

 

I did not take it as an attack. No need to apologize.

That is true the head phones would solve the problem (i mean let you know if its truly knocking or not).

Just like you i heard of many other cars through the grapevine as well with the same issue. I guess not to many on this forum.

But if someone has a fix for it, im sure it would help everyone who may come across this same prob.

Just for me i would prefer to have the logs read acurately.

 

post logs.

like others have said.. you have to run WAY less timing on a stroker.

 

I am having the same problem as him. Its not about running aggressive timing its just no matter what it is there is knock.

Im not really trying to tune my car as aggressive as possible, but more of a peice of mind to know where i am standing with accurate readings.

I made 520 of the wastegate spring ( boost controller turned off, now using a smaller sping) @ 24 psi with no timing at all.

 

The manufactors knock sensors are in the terms of detecting knock within the noise/frequency that they have set it to, Once you change the spec/cams and effectivly noise you might as well throw the sensor out the window or be able to put the testing in to recalibrate in the software which is unlikely, As you would need either very expensive test equipment or the normal head phones but you would need to be experianced in what you are hearing,
Even down to the size of the pipe bolted to the engine will change the noise level and pick up more sound experiance plays a big part here also,
Most aftermarket knock sensors are working as noise sensors nothing more and they need to be calibrated to each engine spec, So IMO unless you are using the headphones while mapping you dont know whether the engine is knocking also diff types of fuel will change the knock noise and effect the knock sensor,
So if you were to ask me no headphones no mapping,
This thread could become a can of worms with everyones opinions they will be diff even the top manufactors/race teams/sensor manufactors have diff thoughts on what is right or wrong good or bad and you will find most revert back to the good old headphones if all else fails.

Mark

 

you do know that you can adjust the knock curve with the AEM right?

what volt levels are you seeing that you consider 'knock'?

 

That makes sense. I agree. But i am looking for a fix for it ( with having the knock count and sensor read acurately), if its possible.

 

I am aware of those options but that isnt the case. Its just off no mater what we do.

I do not have the logs with me at the moment to check and give an exact number.

 

For me the fix would be get it mapped by someone that knows about knock and listens with head phones, Then work out if the knock sensor could be made to work.

Mark

 

Headphones are not a solution. Even if you could listen to knock and detect it 100% accurately with headphones, what good will it do you if you can't make your ECU stop retarding the timing from phantom knock that isn't even there? Has anyone here had ANY luck with a 2.3L stroker on the stock ECU without tons of phantom knock?

 

I occasionally get 2-3 counts around 3500 rpm but nothing other than that. One thing I did add was a Fluidampr harmonic dampener, which seemed to help smooth the engine out a lot.

-Paul