It's 100 European. Me thinks something like R+M/2. Basically 96 "US spec".

Jim

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

10:1 refers to the compression ratio, not the AFR. :)
My AFR is basically flat at 12.5 above 5000rpm.

Jim

If your gonna be there and your willing to put up speaking English :o
I'll try me best mate :)

Just looked at my timing curve on a EMU, granted the EMU timing log isn't particularly accurate but it's all i got.

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 shit 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

So you are running 95 octane? Weird.
Anywho, looking forward to talking to you tonight. As usual, English or Greek, it's not a problem to me. :)

Jim

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

Try the EKO 100Speed. I have a friend who has an EKO petrol station in Gerakas. He got tested by the ministry a couple of weeks ago and his 100 gas was analysed as 101.3 octanes.

Jim

hmmm.

:o

Bit far to travel though from Illoupoli though mate.

Well i went along, print outs in hand but no Dimitris.

Still it's always great to talk cars with a great bunch of guys :)

You off to the track day/night coming up?



Cheers
Mark

I came albeit a little late (9ish). Sorry about that. :( It was my birthday yesterday so there were a few things going on in the house. And of course I'll be all over that trackday. ;)

Jim

Happy birthday :)

i tried using my charming influence and take advantage of that great Greek hospitality to wiggle my way into the trackday without being a member, but it was not to be :(


Cheers
Mark

Who all is using knocksense now?
I know scott has it now but are any other MS users using it, PNP or not?

i have one

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.

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.

Reading msefi.com, it seems that many people have problems with false knocks being reported, to the point that the KS is useless. For all I know, those folks were running soild lifters and gear drives. Any MS folks have experience with false reports on our sewing machine smooth motors?

I have solid lifters on my '99, i need to respec the shims on them because they sound like dirty hydraulics sometimes.
'99-00 were stock with solid lifters.

The TurboXS Knocklite does that, to set it you basically have 3 rpm points, tickover, half of redline just before redline.
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

Can you hook up two knock sensors 1 between cylinder 1 and 2 and the other between 3 and 4? Probably extraneous crap, but just curious...