Knock Levels

[R34NRG]

was driving last nite and noticed the engine light flash for a second. and noticed the knock reading on the power FC read 60.

1st time its happened but was wondering wats a safe level of knock, and wat isnt

[Yawn]

Preferably below 50 at the highest point of knock

[abu]

60 and above is too high

[GeeTR]

The age and of condition of the sensor plays a role i think, though i try and keep it all relative. If your used to seeing 15/20 and recently it through a 60, then id 100% look into it. (assuming this figure wasn't at gear change or something)

I reckon you shud set the warning to go off at 40 too; in a mates car, I could hear knock before the check light came up (was set at 60)

You haven't mentioned what the motor was doing when it flashed 60.

Edited May 31, 2008 by GeeTR

[paulr33]

read the PFC FAQ, its in there

[and3_3]

Ive got a question for the difference with knock levels. Some times when im driving casually using 12 psi not flooring at all ive had knock levels up 125 and no noise or difference what so ever in the engine.

Other times ive had back fire and knock levels up to 100 or so.

[R34NRG]

car was sorta cold, and just got onto the freeway wen a ambo came up....i sorta had to get out the way so i semi fanged it. and it came up.

usually see 20s not even. and wen i was flooring it it came up. i let off straight away and checked the knock just incase.

but it was fine all nite tonite =D

[sidewayssam]

mine never really reads above 12, however on rare occasions if i am bouncing off the limiter it reads up to 80

[shnaped_second]

Normal driving i get around 10-20, but when i hit the bee r limiter i usually see around 100-120

[craig R33]

same here, mine rarely sees >20. but when its on the limiter in 2nd gear, it can sometimes hit 120.

i have mine set at 60 aswell, sometimes i dont even hear the knock if it goes over.

might set it to 50

[stolen_s15]

I'm in the same boat as you guys, never really goes above 25 except for when i tag/bounce off the limiter. Does anyone know if this is an accurate reading that I should be worried about? Or is the sensor picking up other sounds?

[R34NRG]

i guess its all normal then. =D

i didnt hear anything either wen knock kicked in....ill proberly set it to 50 just incase

[joeyjoejoejuniorshabadoo]

i need a hand controller.... *goes to nengun*

[R34NRG]

i need a hand controller.... *goes to nengun*

f*k joey u are the biggest post bumper i know LOUL

but thanks to u my threads stay fresh

Edited June 1, 2008 by R34NRG

[Sinful]

Mine can sit anywhere from 12 up to 22..it only hits high readings when I might of gone over a bump or a rock has hit the sump while driving or when something is wrong like one of my boost vaccum lines coming off and was running unlimited Gee it felt awesome but need to be sensable

Not good when you guys are hitting high reading when on the limiter...and shouldn't be hit limiter too much either it causes damage

[R31Nismoid]

Read the FAQ next time