Cylinder 3 Knock

FlashPro questions & answers specific to the FN2 European Civic Type R
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Oscar_R
Posts: 1
Joined: Wed Jun 13, 2018 4:16 am

Cylinder 3 Knock

Post by Oscar_R » Wed Jun 13, 2018 4:35 am

Hello,

I am currently running the Group N re flash and am getting knocks in cylinder #3.
I notice it only occurs at low rpms, between 2000-3000 rpm.
Current mods are tegiwa manifold and HKS RSK Intake.
Should i revert back to stock tune until i get a custom tune? Also i have tried retarding the ignition in cylinder 3 , with no difference in knocks.
Any help would be appreciated.
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Cylinder 3 Knock.fpdl
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Group_N.fpcal
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Spunkster
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Posts: 17998
Joined: Fri Sep 20, 2002 5:06 pm
Location: Hondata
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Re: Cylinder 3 Knock

Post by Spunkster » Wed Jun 13, 2018 9:09 am

I would recommend not using this calibration until you can get it tuned properly on the dyno.

typer86
Posts: 312
Joined: Sun Oct 28, 2012 3:17 pm

Re: Cylinder 3 Knock

Post by typer86 » Wed Jun 13, 2018 1:14 pm

I have reviewed the datalog. I recommend to tune the engine.

I have noticed from your datalog:
- Low rpm runing to lean in different cases
- WOT running super rich (lambda 0.81)
- Timing
- determine correct VTC profile (smooth out the bumpy profile which come from hondata GroupN base map)
- determine correct injector timings
- ... and a lot of more is to do...

I can e-tune it for you if you want. /PM me

Note:
The HKS RSK system... I do not recommend to drive without heat shield. In city traffic super hot IAT values will be determined.
Few FN2 which I have tuned similar affects I have noticed.

BR
Jerome

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