Knocksense
#22
Elite Member
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Join Date: Jun 2006
Location: Athens, Greece
Posts: 5,979
Total Cats: 356
Hi mate,
how about a visit to the club today (its Wednesday, remember?). It mostly pings when the engine is very hot (ie 40 minutes in traffic do wonders), I use 95 octane gas and I try to park with quick throttle stubs in the 1000-2500rpm zone (I can hear it ping). It doesn't ping with 100 octane at all. This is what my spark map looks like right now. I scored +5hp peak hp with this table over the stocker, no pinging on the dyno.
Jim
how about a visit to the club today (its Wednesday, remember?). It mostly pings when the engine is very hot (ie 40 minutes in traffic do wonders), I use 95 octane gas and I try to park with quick throttle stubs in the 1000-2500rpm zone (I can hear it ping). It doesn't ping with 100 octane at all. This is what my spark map looks like right now. I scored +5hp peak hp with this table over the stocker, no pinging on the dyno.
Jim
#24
I'll try me best mate
It mostly pings when the engine is very hot (ie 40 minutes in traffic do wonders), I use 95 octane gas and I try to park with quick throttle stubs in the 1000-2500rpm zone (I can hear it ping). It doesn't ping with 100 octane at all. This is what my spark map looks like right now. I scored +5hp peak hp with this table over the stocker, no pinging on the dyno.
Your timing seem to be roughly what i'm running at 11psi with stock petrol.
So sth seems a bit off somewhere mate.
I have no idea how the Knocksense works, but i have found with the Knock Link it's impossible to get a consistent result.
Either it works great before 5000rpm but then activates from shear noise after that.
Or it doesn't activate at all below 5000rpm but only above.
When i first fitted my EMU i was messing about with the settings and i accidentally added a **** load of timing, i still didn't get any knock without load.
I'll try and get over tonight and we can have a chat about it mate.
Cheers
Mark
#26
To be honest mate, i've tried the BP and Shell high octane fuels, but found they are extremly inconsistent.
I'll get a good tank full and will be able to run a couple of degrees more timing, i then fill up from exactly the same petrol station 3 days later and i start getting knock.
So it's retard 2 degrees again.
I've tried several petrol stations around my home and the airport, but they're all the same.
I usually try and chuck in a BP ultimate or Shell optimax every 3rd tank full or so now, just to see if it's improved.
From what i can gather petrol losses octane while its sat in the storage tank, i can't remember what the figures were but it was sth like it dropped 1 octane per week or sth like that.
Only thing i can think of is either ALL the petrol stations are diluting the high octane fuels.
They aren't cleaning the tanks out correctly.
Or the high octane is used that rarely it sitys in the tank for ages and effectively goes off.
Oddly it's only in Greece as well, Italy, France, Spain, Germany, UK etc, the car feels great on the high octane stuff.
Cheers
Mark
I'll get a good tank full and will be able to run a couple of degrees more timing, i then fill up from exactly the same petrol station 3 days later and i start getting knock.
So it's retard 2 degrees again.
I've tried several petrol stations around my home and the airport, but they're all the same.
I usually try and chuck in a BP ultimate or Shell optimax every 3rd tank full or so now, just to see if it's improved.
From what i can gather petrol losses octane while its sat in the storage tank, i can't remember what the figures were but it was sth like it dropped 1 octane per week or sth like that.
Only thing i can think of is either ALL the petrol stations are diluting the high octane fuels.
They aren't cleaning the tanks out correctly.
Or the high octane is used that rarely it sitys in the tank for ages and effectively goes off.
Oddly it's only in Greece as well, Italy, France, Spain, Germany, UK etc, the car feels great on the high octane stuff.
Cheers
Mark
#35
scott sold his like a week after installing it. id buy one, but i just dislike that it isnt specifically made for the miata. Would be cool to have some sort of unit that could record the "sound" of a na motor on a good tune from 0-redline that way it would actually have something to compare against on the entire rev range.
Wonder if I could turn something like that into a senior design project... It would be so cool to be able to record the sound of any motor like that. The reponses of the sensor would be much more reliable even at high rpm.
Wonder if I could turn something like that into a senior design project... It would be so cool to be able to record the sound of any motor like that. The reponses of the sensor would be much more reliable even at high rpm.
#36
Elite Member
Thread Starter
iTrader: (13)
Join Date: Oct 2006
Location: Atlanta, GA
Posts: 8,091
Total Cats: 7
Think i'm gonna get it.
I'm redoing my MS setup. Adding a GM IAT versus the stock sensor, EBC, KS now with the stock sensor. Still waiting on ECU pins so I can do up my patch harness to replace the current switch box setup. Gonna run some dedicated grounds for the MS and WB. I'd really like to get some kind of gauge panel like a megaview but I think i'm just gonna mount the palm for the time being. I need to get a oil temp gauge and setup an oil cooler while i'm in the groove.
I'm redoing my MS setup. Adding a GM IAT versus the stock sensor, EBC, KS now with the stock sensor. Still waiting on ECU pins so I can do up my patch harness to replace the current switch box setup. Gonna run some dedicated grounds for the MS and WB. I'd really like to get some kind of gauge panel like a megaview but I think i'm just gonna mount the palm for the time being. I need to get a oil temp gauge and setup an oil cooler while i'm in the groove.
#39
Would be cool to have some sort of unit that could record the "sound" of a na motor on a good tune from 0-redline that way it would actually have something to compare against on the entire rev range.
Wonder if I could turn something like that into a senior design project... It would be so cool to be able to record the sound of any motor like that. The reponses of the sensor would be much more reliable even at high rpm.
Wonder if I could turn something like that into a senior design project... It would be so cool to be able to record the sound of any motor like that. The reponses of the sensor would be much more reliable even at high rpm.
You then put it into learn mode and select all 3 of these job done
Maybe someone could use the LED output as a signal for MS?
http://www.turboxs.com/more_info.php?ID=212
Cheers
Mark