what coils?

whats your timing map look like?

 

Stock coils

 

duplicate deleted

 

Im FAR from any kind of expert but your map seems pretty conservative to me.....MT crew pelase correct if im wrong.

Don't 1 and 4 share the same coil? perhaps a coil or ecu ignition failure?

We lost an engine once in simialr style when the battery terminal was loose after electricain didn't toghten it.

+ lead was coming on and off and ended up with detonation damage.

 

 

We figured the bad power supply was upsetting the ecu and its internal timing thus messing with the ignition timing. I felt nothing in that circumstance either (well until the engine failed, i felt that )

Its highly unlikely but worth checking.

Your map seems conservative and your efr's 'seem' quite rich so it has to be something putting the timing off....incorrect dwell, timing trigger setting or something liek that.

Anyway, im stretched already so hopefully someone with more experience can chip in.

 

That's certainly not a conservative spark map on pump gas.

 

Way too much timing on an MSM, I typically can only get 14 degrees in at 12+psi.

You were knocking when you were tuned.

 

Re the map..my mistake. Brain fart, had my numbers reversed.

 

This map is a disaster

 

 

Too much advance in boost. I don't have access to my computer to share mine but 20 degrees plus is too much in your top two rows.

 

 

 

You are a solid 8-10deg beyond what is safe on 93 octane from 150kpa up. It's been knocking, badly, since day 1

 

 

As previously stated, your timing map is way way too advanced. Especially top two rows midrange rpms.

here is my timing map, which I consider pretty aggressive, and your map is way more advanced than mine.


Also check that broken piston chunks didn't damage your turbine wheel.

 

 

Many knock sensors don't work well. Use an actual listening device.