power fc users - knock
13 July 2006, 02:25 AM
#1
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power fc users - knock
just wondering what peoples experiences are with monitoring know...i.e. max ever seen, average ect any other comments welcome
13 July 2006, 07:47 AM
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mine apparently is a very quiet engine,or not as aggressivly mapped,but the max i ever see as a peak reading is 6...... registeres 4 on startup...... only been fitted two weeks though and i think the cell light is set to flash at 30
my00 jdm wrx..... quite a few mods
my00 jdm wrx..... quite a few mods
13 July 2006, 07:56 AM
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Hmmm sounds interesting so far, as I often hit around 40 - 60 with a hard drive, so I must have something wrong somewhere...Plasatan, do you use octain booster?
13 July 2006, 08:11 AM
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I seem to get around 18 peak during normal driving, but I have monitored mine and it does this on part throttle, full on blasts seem to be okay unless I nudge the rev limit (which then I would imagine is just engine noise and not knock), have seen a few higher figures occasionally but not consistent. Also think 1 of my coil packs is breaking down a bit which could be contributing to it as well.
Playsatan, does adding 7 degrees give you a noticeable power increase? Do you adjust fuelling to match or use booster etc?
Playsatan, does adding 7 degrees give you a noticeable power increase? Do you adjust fuelling to match or use booster etc?
13 July 2006, 08:12 AM
#6
>4 on start-up
>10 when driven half hearted
>15 when driven hard
18-24 when caned to near the rev limit in 1st & 2nd, but this is just noise and can be seen as such when traced against rpm on the graph.
I was getting the odd 21-24 but found a few high spots in the map around 5,000rpm. Took these out and now sorted (I think).
Knock threshold set at 30 and Knocklink only flashes 2 greens at most.
>10 when driven half hearted
>15 when driven hard
18-24 when caned to near the rev limit in 1st & 2nd, but this is just noise and can be seen as such when traced against rpm on the graph.
I was getting the odd 21-24 but found a few high spots in the map around 5,000rpm. Took these out and now sorted (I think).
Knock threshold set at 30 and Knocklink only flashes 2 greens at most.
13 July 2006, 08:13 AM
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meant to add if it is an earlier car, then from what I have read on here, the earlier engines tend to be more noisy.
You can knock 4 degrees of ign from the commander and see if it still does it, if it does its probably a very noisy engine, but you are best speaking with your mapper to see what they say.
You can knock 4 degrees of ign from the commander and see if it still does it, if it does its probably a very noisy engine, but you are best speaking with your mapper to see what they say.
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13 July 2006, 10:29 AM
#8
Most I have seen at full chat is about 25. But then I have an old engine and am pleased to see that these are regarded as being noisier 
No more than 10 in normal driving up to about 80 mph.
Andy F set the CEL at 40 I think, so it would appear that its safe enough.
No more than 10 in normal driving up to about 80 mph.
Andy F set the CEL at 40 I think, so it would appear that its safe enough.
13 July 2006, 10:39 AM
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hmmm ok cheers peps seems like i must have a problem with mine, i got 63 or 64 a few times, but from reading this, i guess some of you use the settings options alot ur ur fc's...ill have to learnmore b4 i do it thoug
13 July 2006, 11:15 AM
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63~64 is too high imho.. has it been mapped or just running the standard map which has too much ignition in it?
Unless it has been checked with detcans and known that the engine is noisy / the knocksensor sensitive I would avoid thrashing it until it is checked.
Simon
Unless it has been checked with detcans and known that the engine is noisy / the knocksensor sensitive I would avoid thrashing it until it is checked.
Simon
13 July 2006, 11:49 AM
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i have the same problem in the hot weather on high boost i have seen 63 and the cel light came on, not sure how to adjust the timing, but its going back to zen on saturday to get sorted hopefully, from what i've heard between 20-40 is ok i think depending on conditions??? correct me if i'm wrong.
13 July 2006, 11:54 AM
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you cannot say for sure any number is fine, it needs setting up with det cans so you know it is not detting and then you will know what is normal knock levels for your engine.. it varies from engine to engine.
20~40 is normal.. but could still be too high on some engines..
MY99~00 is lower..
Simon
20~40 is normal.. but could still be too high on some engines..
MY99~00 is lower..
Simon
) we calibrated that 12 count was a-ok but 15 was just getting sprkly wasnt it?
13 July 2006, 01:18 PM
#17
I was recently getting daft spikes of 50-60 but only on full on acceleration through the gears. I dug around a little and noticed that my MAF voltage read 5.115v so I assumed it had maxed out completely. I dropped the set boost from 1.35 to 1.3bar (peaking at 1.45bar) which stopped the rogue knock spikes (now getting a max of 23). The MAF voltage now reads no more than 5.050v leaving a little headroom. The car also seems to accelerate more smoothly.
Last edited by theotherphil; 13 July 2006 at 01:21 PM.
13 July 2006, 01:19 PM
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Originally Posted by WRXshaneWRX
how do u turn down the ignition?
Simon
13 July 2006, 01:22 PM
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Originally Posted by benji100
ok, cool, is there any reason why det only occurs at high revs i.e high speeds??? as mine only shows det at above 6000rpm and speeds of 120 onwards???
13 July 2006, 01:26 PM
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Originally Posted by WRXshaneWRX
thanks mate...also does anyone know where is close to chester/north wales that would remap my car this weekend?
I am not far away later in the month though.
Simon
13 July 2006, 01:56 PM
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Originally Posted by jaytc2003
Simon, if I did a parrallel fuel mod, would I need a tweak of the map?
it might get slightly richer if the standard set up was hampered at all.
Simon
13 July 2006, 02:01 PM
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wow u mean like down y lodon and all that??? urr wanna pm to discuss prices ect if you were to come up near chester way and remap my fc...shane
13 July 2006, 02:04 PM
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Originally Posted by theotherphil
I was recently getting daft spikes of 50-60 but only on full on acceleration through the gears. I dug around a little and noticed that my MAF voltage read 5.115v so I assumed it had maxed out completely. I dropped the set boost from 1.35 to 1.3bar (peaking at 1.45bar) which stopped the rogue knock spikes (now getting a max of 23). The MAF voltage now reads no more than 5.050v leaving a little headroom. The car also seems to accelerate more smoothly.
omg is 1.45 safe???? bet thats rapid...im on 1.1 and 320lbft torue and thats fast, but do u need stronger internls to get 1.45?
13 July 2006, 02:07 PM
#28
Originally Posted by WRXshaneWRX
omg is 1.45 safe???? bet thats rapid...im on 1.1 and 320lbft torue and thats fast, but do u need stronger internls to get 1.45?
Only running 1.45 peak which settles down to 1.3bar to the limiter. Been like this for last 18 months or so and gets used hard 
Just waiting for the gearbox to let go though 