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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Mike/Terry, can you please join this discussion?



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      02-22-2011, 09:30 PM   #925
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Quote:
Originally Posted by Clap135 View Post
I don't know if all of that is knocking but it sure make me laugh!
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      02-22-2011, 09:32 PM   #926
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Quote:
Originally Posted by Fernflex View Post
I don't know if all of that is knocking but it sure make me laugh!
1 is close
2 are fuck your life

So its not all knock lol
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      02-22-2011, 09:37 PM   #927
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Quote:
Originally Posted by Clap135 View Post
people should notice what happened on the 2 logs that show the 3-4 shift on that log. Notice what happens as boost goes down, the initial timing the car wants to run goes up, and what does that cause? KNOCK again. Greaty system they got going on there.
Wait a second...what does your Cobb map show then? It must be the legendary antiknock...
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      02-22-2011, 09:39 PM   #928
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Quote:
Originally Posted by ExpensiveTaste View Post
Wait a second...what does your Cobb map show then? It must be the legendary antiknock...
Nice try nub, log your car and see happens when the throttle is closed....It have a MT car not an automatic. A mt car hits low loads which request high timing when you get off the throttle. You do reliazed you circled boost being blow off right?

Otherwise according to your IDIOTIC logic, my car knocked as no throttle was applied, and the rpm were FALLING DOWN. REALLY BRO?!

Stupidity gets me angry.
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      02-22-2011, 09:42 PM   #929
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Quote:
Originally Posted by Clap135 View Post
sorry, busy day at work.

AS for the guy who posted the 2-3 log, logs that short mean nothing. Also realize then your timing in 2nd vs 3rd is vastly different. Only way to lower timing if you have no control of it is to knock. Your car knocked down to that level, and soon will attempt to raise timing again. Have fun with that.


AS for MIKEY
Attachment 489284
Looks liek autotuning isnt doing jack shit.
Your analysis is way off. Knock has a very distinct signature. Remember timing is also mapped on load and a variety of other things. The dips that correspond to knock were picked up by "avgign" (which is mislabeled) dropping. There are no drop outs from 300 forward. Also timing drops at the shift are mapped and not indicative of knock. It is routine for this platform to happily run negative advance when needed. As evidenced by this flash map log.

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      02-22-2011, 09:43 PM   #930
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Quote:
Originally Posted by Clap135 View Post
Nice try nub, log your car and see happens when the throttle is closed....It have a MT car not an automatic. A mt car hits low loads which request high timing when you get off the throttle. You do reliazed you circled boost being blow off right?

Otherwise according to your IDIOTIC logic, my car knocked as no throttle was applied, and the rpm were FALLING DOWN. REALLY BRO?!

Stupidity gets me angry.
And as you can see in post 943, an automatic car has no pedal change between shifts where the RPM drops. NO timing increase between shifts. The two logs you spoke of are of MT cars...I'm not sure what you're trying to prove anymore.
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      02-22-2011, 09:44 PM   #931
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Quote:
Originally Posted by Clap135 View Post
Attachment 489284
Looks liek autotuning isnt doing jack shit.
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      02-22-2011, 09:46 PM   #932
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Quote:
Originally Posted by Mike@N54Tuning.com View Post
Your analysis is way off. Knock has a very distinct signature. Remember timing is also mapped on load and a variety of other things. The dips that correspond to knock were picked up by "avgign" (which is mislabeled) dropping. There are no drop outs from 300 forward. Also timing drops at the shift are mapped and not indicative of knock. It is routine for this platform to happily run negative advance when needed. As evidenced by this flash map log.

Wrong, knock at 46, knock at roughly 165. IT would be easier to determine if you can tell what timing that tune requested.
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      02-22-2011, 09:47 PM   #933
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Quote:
Originally Posted by Clap135 View Post
Nice try nub, log your car and see happens when the throttle is closed....It have a MT car not an automatic. A mt car hits low loads which request high timing when you get off the throttle. You do reliazed you circled boost being blow off right?

Otherwise according to your IDIOTIC logic, my car knocked as no throttle was applied, and the rpm were FALLING DOWN. REALLY BRO?!

Stupidity gets me angry.
so not only do N54's knock like crazy in stock form, they also knock wen the r is not even under throttle !?!?

jeeeeeeez !!!!!!!

jk
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      02-22-2011, 09:48 PM   #934
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Quote:
Originally Posted by ExpensiveTaste View Post
And as you can see in post 943, an automatic car has no pedal change between shifts where the RPM drops. NO timing increase between shifts. The two logs you spoke of are of MT cars...I'm not sure what you're trying to prove anymore.
Post 943 has 2 shifts, the rest is just pieced together data.

AT doesnt drop boost, doesnt drop load as much as a MT. Educature yourself on load vs timing maps.
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      02-22-2011, 09:49 PM   #935
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Quote:
Originally Posted by Litos View Post
so not only do N54's knock like crazy in stock form, they also knock wen the r is not even under throttle !?!?

jeeeeeeez !!!!!!!

jk
That is not knock, look up load vs timing tables for the cobb tune. If you like I will post that log again and simply add load to it.
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      02-22-2011, 09:51 PM   #936
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I love this thread
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      02-22-2011, 09:51 PM   #937
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You should really think what you are writing before you write it. You said the 2 logs show a timing spike between shifts. Those logs were MT logs. Post 943 is an AT log which shows no timing spikes between shifts. What are you getting at?
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      02-22-2011, 09:54 PM   #938
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Quote:
Originally Posted by Sniz View Post
I love this thread
i'm glad i followed it, even with all the back and forths, this has to be one of the best threads to read before making a decision on a tune.

i say it gets locked by Friday and it becomes a sticky HAHAHA !!!!
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      02-22-2011, 09:54 PM   #939
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Quote:
Originally Posted by ExpensiveTaste View Post
You should really think what you are writing before you write it. You said the 2 logs show a timing spike between shifts. Those logs were MT logs. Post 943 is an AT log which shows no timing spikes between shifts. What are you getting at?
You took my log and circled my bov blowing off boost as knock. You should update your sig, cause the idiot you ask all the questions, makes you look dumber with each post.

The AT has no timing spikes like the MT because the AT holds more load during a shift. More load, means less timing, thats how the ecu works.
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      02-22-2011, 10:00 PM   #940
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Quote:
Originally Posted by Clap135 View Post
You took my log and circled my bov blowing off boost as knock. You should update your sig, cause the idiot you ask all the questions, makes you look dumber with each post.
I was being sarcastic saying that if you think the two logs you supposedly made a point on, "knocked" between shifts, then your Cobb does as well.

Quote:
people should notice what happened on the 2 logs that show the 3-4 shift on that log. Notice what happens as boost goes down, the initial timing the car wants to run goes up, and what does that cause? KNOCK again.
Again, this thread is about trying to get factual data on what these timing drops actually mean. Your tune never knocks so any kind of drop must be "antiknock"...
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      02-22-2011, 10:03 PM   #941
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Quote:
Originally Posted by ExpensiveTaste View Post
I was being sarcastic saying that if you think the two logs you supposedly made a point on, "knocked" between shifts, then your Cobb does as well.



Again, this thread is about trying to get factual data on what these timing drops actually mean. Your tune never knocks so any kind of drop must be "antiknock"...
My tune doesnt knock because there are no timing drop outs. It runs more boost than the terry log posted, on a fully bolted car. Why does his timing curve look like dog shit, and mine looks fine? Heres a clue, one car is over aggressive cause its trying to run the stock timing curve and the other has a preset timing curve that is below the knock threshold.
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      02-22-2011, 10:07 PM   #942
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Quote:
Originally Posted by Clap135 View Post
My tune doesnt knock because there are no timing drop outs. It runs more boost than the terry log posted, on a fully bolted car. Why does his timing curve look like dog shit, and mine looks fine? Heres a clue, one car is over aggressive cause its trying to run the stock timing curve and the other has a preset timing curve that is below the knock threshold.
It's different conditions, different octane, developmental autotuning. Post your IAT's in your log so we can actually start to compare the "perfect" tune, to the tune you're exploiting...
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      02-22-2011, 10:09 PM   #943
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Quote:
Originally Posted by Clap135 View Post
one car is over aggressive cause its trying to run the stock timing curve and the other has a preset timing curve that is below the knock threshold.
this is fact.

BUT, there's still no factual evidence that the dip/drop is knock.

AND, if it IS knock, how can it be measured to determine if it's ok knock or fuck my life knock !?!?
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      02-22-2011, 10:09 PM   #944
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Quote:
Originally Posted by ExpensiveTaste View Post
It's different conditions, different octane, developmental autotuning. Post your IAT's in your log so we can actually start to compare the "perfect" tune, to the tune you're exploiting...
I think Cobb is far from the prefect tune.
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      02-22-2011, 10:10 PM   #945
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Quote:
Originally Posted by Litos View Post
this is fact.

BUT, there's still no factual evidence that the dip/drop is knock.

AND, if it IS knock, how can it be measured to determine if it's ok knock or fuck my life knock !?!?
No evidence. One last time for the poeple who can't read. Throw race gas into that car and every single one of those dips, WILL GO AWAY. What more evidence do you need?

Knock is a drop in timing

Fuck my life, is when ignition is alot lower then the usual for a sustained period of time

close is just that, a timing curve that pauses in its ramp up and continues to ramp up
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      02-22-2011, 10:11 PM   #946
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Quote:
Originally Posted by Litos View Post
this is fact.

BUT, there's still no factual evidence that the dip/drop is knock.

AND, if it IS knock, how can it be measured to determine if it's ok knock or fuck my life knock !?!?
Those slight dips are not knock!!!
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