Alpha 3076, E85 tune, Stock Engine
Thread Starter
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Registered User
Joined: Aug 2014
Posts: 919
From: Australia
Rep Power: 106
My 996 held 868 more than fine and probably way higher at points because I ran more boost than what I made 868 with. Plus I rev'ed to 7800 (shifted at 7600-7700) compared the the 7500 (Matt shifts at 7k).
Don't let what some say fool you the 996TT is a beast of a motor. My numbers and times showed that over 5 years ago
Don't let what some say fool you the 996TT is a beast of a motor. My numbers and times showed that over 5 years ago
I am not so concerned if I twist some rods... I just drip feed the mods $$ so the boss lady stays on the QT... and so I get used to higher power
Registered User
Joined: Apr 2012
Posts: 138
From: San Diego, CA
Rep Power: 23
I chatted with Mitch about the logs and it didn't look like it was aggressive timing or leaned out. It was misfiring under heavy load and then bam.
As promised - Here is the log 5 minutes prior to the knock starting / I unfortunately don't have the run logged where the rod bent.
http://s000.tinyupload.com/?file_id=...45486471433154
...Anyone got a hookup on forged internals?
As promised - Here is the log 5 minutes prior to the knock starting / I unfortunately don't have the run logged where the rod bent.
http://s000.tinyupload.com/?file_id=...45486471433154
...Anyone got a hookup on forged internals?
Registered User
Joined: Apr 2009
Posts: 1,236
From: NY
Rep Power: 110
I chatted with Mitch about the logs and it didn't look like it was aggressive timing or leaned out. It was misfiring under heavy load and then bam.
As promised - Here is the log 5 minutes prior to the knock starting / I unfortunately don't have the run logged where the rod bent.
http://s000.tinyupload.com/?file_id=...45486471433154
...Anyone got a hookup on forged internals?
As promised - Here is the log 5 minutes prior to the knock starting / I unfortunately don't have the run logged where the rod bent.
http://s000.tinyupload.com/?file_id=...45486471433154
...Anyone got a hookup on forged internals?
Was it lean popping?
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Joined: Apr 2013
Posts: 465
From: north est
Rep Power: 61
i am far from expert tuner but i see boost 1.2-1.3bar and timing around 22deg from 3500-4500rpm with slight knock in the most critical point
my gt700 software at 1.4 bar 94oct pump never goes above 13 deg in that region
i hope you had good fuel buddy...
thx for sharing
my gt700 software at 1.4 bar 94oct pump never goes above 13 deg in that region
i hope you had good fuel buddy...
thx for sharing
Registered User
Joined: Apr 2012
Posts: 138
From: San Diego, CA
Rep Power: 23
csv linked below.
http://s000.tinyupload.com/?file_id=...56334118873524
I'd be curious to see the pivot tables you create - could you post them here?
http://s000.tinyupload.com/?file_id=...56334118873524
I'd be curious to see the pivot tables you create - could you post them here?
Thread Starter
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Registered User
Joined: Aug 2014
Posts: 919
From: Australia
Rep Power: 106
I am running 14-15* degrees there on E85
Registered User
Joined: Apr 2012
Posts: 138
From: San Diego, CA
Rep Power: 23
The weird thing is as I drove the car back to its resting place it even though it had the knock, it still was producing ample power. When I got back home I pulled the codes from the ECU which only showed misfiring on two cylinders, nothing more.
Also, several people have said after hearing the sound, it doesn't sound like rod knock to them... Odd...
Here is another video of start up and small rev. You can feel the "knocking" through the clutch pedal when you depress it as well. -
Also, several people have said after hearing the sound, it doesn't sound like rod knock to them... Odd...
Here is another video of start up and small rev. You can feel the "knocking" through the clutch pedal when you depress it as well. -
Last edited by steeze; Apr 29, 2015 at 04:18 PM.
