KR Question

kappa67

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Hi all
Have a question about KR.
On a site I read the following:
  • 1-5 you are OK, and fine even with a modified engine. We want ZERO all day long, but that is the perfect world that our engines do not work in.
  • 6-8 you are starting to get in trouble with modified engines, but stock is going to live ok, even GM must think so.
  • 9-10 KR events... Folks, you are going to hear the denotation at this point. IF you know what knock sounds like, and if your exhaust is not too loud.
  • 11-12 KR events. Death is very close, and your engine is going to chip/crack a piston if you are at this level for even 10 seconds...
  • 13 and above, you are most likely at this point ready to sell the project or get a new engine.
Site:
Are these KR right?

Ok I have KR with mine
2000 Pontiac Grand Prix GTP
Mods:
Colder thermostat
Colder sparks
RAM air full functionable
ZZP front power log
ZZP back power log
3" Downpipe
Throttle body spacer
I drive a 3.4 pulley if I drive normal I have 0.0 KR
If I have full WOT then about 4-8 KR
Wanna bring this down.....maybe a water methanol injection
Next thing will be portet manyfold and blower
 

melsg5

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What octane gasoline?
Is it tuned?
 

melsg5

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Where do you find 98 or 100 octane gasoline at a pump?
Again, is it tuned?
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kappa67

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We have here in europe Shell V-power thats 100 octan
95 is normal and 98 is the plus gasoline on every gasoline station
Tuned? All mentioned above under mods
 

melsg5

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Ok, didn't know you were in Europe 98 RON is only 93 PON in the US.
What temperature thermostat, if too cold the computer will remain in open loop. A tune will change the programming in the ECU to cause it to go to closed loop at a lower temperature. It will also change timing and may require different injectors. Have you contacted ZZP?
 

kappa67

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Yep and the next things willl be 42 Lukas injectors and new programmed ZZP PCM.
Its a 180 thermostat
 
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melsg5

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The ECU isnt going to work with the 180 until you change it and could be part of your problem.
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cjster

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Yep and the next things willl be 42 Lukas injectors and new programmed ZZP PCM.
Its a 180 thermostat
May I suggest something? A programmed PCM from ZZP may not be your best bet while living in Europe, especially in the world we live in with COVID shipping delays. ZZP doesn't have the greatest reputation over here in the States for their customer service when it comes to their tuned PCMs. I personally have not dealt with any of their PCMs, however if there is something you don't like about the tune you receive, it may be weeks before they can help you due to international shipping. My suggestion would be to invest in HPTuners and try to learn by trial and error (in very small increments). If you still desire a tune from ZZP, you would at least be able to get some data from HPTuners and email them your tune file and get updates much quicker that way. That's exactly the route I'm going and I only live an hour and a half from the ZZP warehouse.
 
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