Quote:
Originally Posted by tomm.brz
i know what you sre talking about, and it is fixed by the Transient retard map, they brought tip in retard ignition to - 40 in high range rpm. it was fixed in early 14, 4 years ago..Why my joining 1year ago count? i m lurking since years. what s the problems then about it now in 2018? why should 95ron then be a problem? the transiet problem was there even with 100ron fuel.. even with Ethanol.
medium rpm knock is there because of aggressivw timing in stock rom, most tuner fix it regulating the timing,
it seems you are talking just by something you read here randomly, not by actually knowing the maps on the roms
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The transient problem was much less with better quality fuel, because you had better knock resistance. It also depends the usage of the car and how hard it was driven. Please study first the basics and then come back to criticize the others. This issue is now solved, but it is still a weak point in our engines. If you are constantly using bad quality fuel, with a lower than factory octane specification and an aggressive v4 tune that tries to do everything in a single map, then the specific issue might come back. It might not appear when shifting, but in more general high rpm and load engine scenarios. You'll have again total seal/injector failures and then go back to find Shiv who has almost a year to post here and ask back your money.
Here is his reputation in Nasioc and people you know don't change ...
The medium rpm knock is not needed to be analyzed in more detail. It is not known to cause issues, so it is out of topic.