Get a wideband and tune it right.

 

Good point, Jack. So the idea would be to save the XEDE settings then zero it out and tune to see what knock is on the ECU, with unaltered input to it. I would guess it would be easier to spot a problem that way. Once that is done, I take it you re-activate the Xede and start from scratch ? Or have it tuned then.

 

That claim was not my intent...It was just a statement in an atttempt to understand why with a very close AFR with the Maf intercepted and not, the knock would dissappear.

 

no offense, but I just don't understand why you guys insist on him running a piggyback when the stock ECU can be tuned to do the exact same thing but better and easier!!


Just take the thing off and relinquish control back to the ECU. Tune and be done with it. *of course do this after you install a WB o2s.*

Please trust what i am saying....it is much better this way.
CJ

 

Ignition Timing!

CJ

 

There will always be people buying SAFC for its DUAL MAP abilities. The user just needs to understand how the ECU works in relation to MAF signal and calculated load.

 

I agree....but to me it's a bad excuse to use a piggyback(i'm sure you would agree ). I tell my customers this constantly. With the advances we have now using the stock ECU, we can run many different maps. All the end user needs to figure out is how to flash the ECU with his/her laptop. We are even on the cusp of having multiple maps loaded in RAM to choose from.

Nothing works better than the stock ECU.

CJ

 

You are comparing a map switching feature that does not yet exist for the stock ecu.

 

This is correct. Hence why i stated that we were on the cusp of this advance. But what does exist is is the ability to flash the ECU with whatever maps we are tuned for..... If we are running 93, use the 93 octane tuned flash. Running 100octane? flash the ECU with that tuned ROM. C16? flash the ECU with that tuned ROM... granted, it's not as easy as the XEDE switchable maps..... but i would rather do this than reley on a piggyback. The pro's of the piggy back don't outweigh the cons of flashing the stock ECU.



---------off topic!!-------------
I highly respect you on these boards....you are actually one of the very few on here that i feel knows what you are talking about and is on the same level as myself. You aren't a nut swinger of any particular vendor and you don't take what they say as the end-all-be-all. You prolly know exactly the members i'm reffering to. I said that to say this........i'm not trying to argue or get into a pissing contest with you. I didn't want you to think that. I was just sharing my opinions on this serious matter(as far as tuning is concerned).

Sorry for going off topic.

CJ

 

So you are agreeing with what I said about the Xede being knock prone

 

Cute dog

What post did you want me to remove?

 

I'm inclined to believe it is more the method than the hardware.

Riding the knock sensor is a method used by GIAC and APR for the 1.8ts to make power. They chose to rely on the knock sensors to compensate for production variation. Most cars ran well and as with any normal distribution at the ends some were quick others dogs. Right method or Wrong method I'm not qualified to pass judgement...but reducing risk is always good.

 

There's a difference between riding a knock sensor then, in a metaphoric sense, a 400lb woman riding a small dog

 

I'm going out to make some adjustments to my rig and recalabrate my wideband. I'll be back with some logs... Thanks everyone for the input.

 

Played with the fuel and timing a bit and this is what i got. I might try to add some timing...