my first sti... 2005 wrb
- Thread starter droopys
- Start date
HolyCrapItsFast
Drinks beer!
You don't want to see any negative numbers in the knock parameters ideally but you will likely see some at times and that is usually okay. You need to look at knock and dynamic advance together to determine if a detrimental knock event is happening. I call these "interesting knock events".
The ECU is always striving to apply the most timing it can with out knocking and sometimes right to the threshold of knock. By looking at dynamic advance and knock together you can see this strategy in action. For example you want to see your total timing to be greater than base timing regardless of knock. This, in my opinion, indicates a non-interesting knock event because the ecu is applying base timing plus dynamic advance... It then sees a little knock and removes a little timing, but dynamic advance is still positive and applying a few degrees of timing beyond base timing.
An interesting knock event would be when dynamic advance is negative and total timing is less than base timing. Also knock events where the value being taken away continues to increase are interesting.
The ECU is always striving to apply the most timing it can with out knocking and sometimes right to the threshold of knock. By looking at dynamic advance and knock together you can see this strategy in action. For example you want to see your total timing to be greater than base timing regardless of knock. This, in my opinion, indicates a non-interesting knock event because the ecu is applying base timing plus dynamic advance... It then sees a little knock and removes a little timing, but dynamic advance is still positive and applying a few degrees of timing beyond base timing.
An interesting knock event would be when dynamic advance is negative and total timing is less than base timing. Also knock events where the value being taken away continues to increase are interesting.
WesternSTi
The Music Man
Nice STi man! Im trying to catch up with all these pages....Lol.
Installed forged beatrush pitch stop love it... but I had an issue after install left for work when got on the freeway and started to boost I got a crazy "supercharged whine" so I slowed down made it to work on my lunch when out pulled the bov. Put it back tightened it drove around its not anywhere near as bad. Gonna deal with it when I wake up. Anybody had similar issue?
Sti whine??: http://youtu.be/fUsa3a7nziw
Spamby
Meat Product Toy
[MENTION=3077]droopys[/MENTION] . What Alin said.
A very audible whine from the turbo could mean it's going out, in my experience. I assume your having no driving issues, power issues?
The pitch stop has been reported by others to cause NVH with a slight transmission whine as one of those noises. This may be what your hearing.
A very audible whine from the turbo could mean it's going out, in my experience. I assume your having no driving issues, power issues?
The pitch stop has been reported by others to cause NVH with a slight transmission whine as one of those noises. This may be what your hearing.