knock voltages - 29 volts - PLEASE HELP!!

[str8ballin]

Hi all, please help me!
I am lost and close to stripping my car and selling it for parts as I cant get this thing to run right!!

I have done logs of my knock voltages, they go soo high and the ecu is pulling timing allready so seems I have no room for more timing but my engine spec should be capable of more...

SPEC:
JE pistons 81.5mm - 9:25:1 cr
AEB head stage 3 port polish
Bosch platinum F5PDOR plugs
siemens 630cc injectors - 4bar fpr
Tesco super unleaded 99octance fuel
GT3076R - 1.8bar boost
r32 TB - RMR manifold
Forge FMIC

I tried to loosen the knock sensors incase they were too tight but no joy there if anything I'm seeing more higher voltages now!

I got the car mapped and the fuelling and boost was set, rev limit, tb scalling etc etc but they couldnt play with the timing because my knock voltages were soo high, so i took the car back changed to sputter bearings and replaced the flywheel/clutch setup.. still no joy!

Is it the case of adding a iron washer inbetween the knock sensors as the ECU is only pulling 6 degrees back even with 29.8volts.

Please help, could me plugs be bad or just the engine is too high compression and i need to lower the boost?

The car needs to go back for tweaking as when at 3/4 throttle @4k building boost gradually, then all of a sudden the TB cuts out and I get a 'maximum torque limit exceeded fault code'..

seems the maf maxing out at 317.08 also..

here are some logs...

ait's never go above 35 degrees

[GTIguy20v]

Check the torque on your know sensors.  Not sure what they should be, it should be in the standard repair manual.  They are very sensitive and MUST be properly torqued.  I would try the knock sensor washers next.  Also you should know that the JE pistons can more "noisy" then stock and your knock sensors may be picking up on it.  Also, who did your tuning?  If the tuning sucks then you could be experiencing real knock.  26.5 psi is pretty high so you also may want to consider water/meth injection.

[Jeronkie]

I am sure you know this but

The knock sensor responds to spark knock caused by Pre-detonation of the Air/Fuel mixture. As the flame front moves out from the spark plug ignition point, pressure waves in the chamber crash into the piston or cylinder walls resulting in a sound known as a knock or ping. This is caused by using a fuel with a low octane rating, overheating, or over advanced timing. Sometimes it can be caused by hot carbon deposits on the piston or cylinder head that raise compression. A knock sensor is comprised of Piezoelectric materials; Crystals that when impacted, generate a voltage

Basically I recomend the same as GTIguy20v
lower boost , Water injection , higher octane fuel  , replace sensor and make sure it is correct torque , make sure you car is not running lean (test pressure and injectors) , lower compression , plugs too warm ,

don't strip your car , at the end it will be something small , the hart of the build is the tuning , make sure that is 100%   

keep us updated (interesting Maf log)