Re: timing
Sorry, my question came off like the rest of my comments: dickish. From reading Njal's post, it sounded like the big advantage was to be able to add extra timing and to run leaner. Was curious what you were going to do.
WHY GROOVE?!
I want to increase the detonation threshold. I want to be able to run more advanced ignition timing(if necessary to make more power). I want to have better idle quality and reduced emissions at idle while still having a decently large camshaft(see the emissions test results from last year below). I want to be able to drive around the car at obnoxiously low rpm when I don't need more power for better gas mileage. I want better acceleration under 2000rpm without going to a smaller camshaft. I want to be able to run even higher static compression with an even larger camshaft in the future, without giving up all of my low rpm drivability.
The head is now off, I just need to do the grooves after I figure out exactly how I'm going to do them and then put the head back on the car. I am NOT even cleaning the carbon build-up in the chambers or piston tops so it's a back to back comparison. Not changing the spark plugs(or their rotation). Nothing is being changed but the grooves and a fresh oil change. The oil that's in the engine now only has 2,000 miles on it and is clean still, barely darker than fresh.
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