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Knock after shifting to next gear

Old Dec 7, 2009 | 09:18 AM
  #16  
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From: CAN
Is there a clutch delay valve in MR?

Which Tial BOV did you go with? are you running VTA or recirculated?


Originally Posted by thatsMR2u
mine went away when i switched to a tial and took out the clutch delay valve
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Old Dec 7, 2009 | 10:08 AM
  #17  
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From: SL, UT
Originally Posted by thatsMR2u
when you datalog either match up the numbers to your map or try taking the car up to redline and shifting slowly and compare the timing numbers- see if the car is really pulling timing and where- because its probably just phantom knock
If you're registering knock counts, your ECU is pulling timing. Plain and simple. Knock count = amount of knock after taking into account the knock filters configured in the ECU.
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Old Dec 8, 2009 | 12:07 AM
  #18  
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From: EUROPE
HKS Super SQV (Super Sequential Blow Off Valve) will harm something?
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Old Dec 8, 2009 | 04:56 PM
  #19  
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went from the 50mm blow off valve to the alpha q for better driveability
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Old Dec 8, 2009 | 04:59 PM
  #20  
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dont know if you can apply some of these techniques to your evo x
https://www.evolutionm.net/forums/ec...s-how-fix.html
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Old Jun 24, 2019 | 08:56 AM
  #21  
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From: Oakville ontario
bringing this back, im getting knock counts when i shift almost every gear everytime. my setup and tune is similar to OP. i have stock motor mounts, but possibly could just need a new knock sensor. has anyone played around with the knock sensitivity in ecuflash to reduce or get rid of this? its over 6 counts right after shift before steppingon the throttle again. im on speed density 2.0 with tephra v7
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Old Jun 24, 2019 | 12:12 PM
  #22  
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From: Ontario, Canada
Originally Posted by UrbanSmoker
bringing this back, im getting knock counts when i shift almost every gear everytime. my setup and tune is similar to OP. i have stock motor mounts, but possibly could just need a new knock sensor. has anyone played around with the knock sensitivity in ecuflash to reduce or get rid of this? its over 6 counts right after shift before steppingon the throttle again. im on speed density 2.0 with tephra v7
Hey, fellow Ontarian here! Do you have a log to show where it's happening? Do you lift hard off the throttle between shifts? Do you feel it happening or just see it on your display/logs?

I got a sequence of knock sums from 11-1 yesterday in my MR in the span of 1 second real time, lifting off of a 3rd gear pull, decreasing load. I worried a bit until I saw the log. It was a violent decel until a selected 4th and let it wind down slowly.
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