Knock retard with megasquirt

[mattm]

Since I have an m62 supercharger using methanol I have been on cobaltss.net a TON. The one thing I have been noticing with their tunes is that there ecu pretty accurately measures detonation and retard accordingly while letting them know its happening!

I have a 2.2 version megasquirt etc etc one of the first bulkbuys through shaodome. I love it it has been very solid for my tuning needs.

However, with my supercharger I cannot hear detonation and pulling the plugs while on the dyno takes too much time and costs me a ton more money. Do you guys offer anything that WORKS, and by that I mean works without hearing something like the valvetrain and triggers eratically. Something that actually hears knock and allows me to tune it out while warning me its there?

[artsvetkov]

There is a web site that sells MS knock detection circuits that are tuned for a specific engines.

[mattm]

There is a web site that sells MS knock detection circuits that are tuned for a specific engines.

HMM! I'll have to look into this!

[artsvetkov]

here you go www . viatrack . ca

[fowljesse]

Thanks, I was wondering too!

[1990pgl]

ok that site is all in japaneese or china man language

[mattm]

here you go www . viatrack . ca

Thanks man thats the same sensor jordan mentioned. I'll have him put it on when he gets here I think it will work.

[1990pgl]

thing is now with having the sensor to pick up knock can you now run ms with target fuels with the base for it to follow and learn its long term fuel tables. cause if so tuning jaspers car would be as easy as hook this up change ms to closed loop add some fuel adn drive away

[mattm]

thing is now with having the sensor to pick up knock can you now run ms with target fuels with the base for it to follow and learn its long term fuel tables. cause if so tuning jaspers car would be as easy as hook this up change ms to closed loop add some fuel adn drive away

I never have and probably never will use target fuels. Too much chance for something to go wrong. The knock retard is something I would use to tune with on the dyno put as much advance up as I can then log how much it had to take out of if notices knock. Its also a failsafe for if the methanol would quick working on me.

Really would be perfect for tuning however. Get it on the dyno add timing until it hears knock or you quit making power. You can push the envelope and get every ounce of power out of your system!