Low spark advance?
#1
Thread Starter
TECH Apprentice
Joined: Jun 2012
Posts: 372
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From: Mississauga Ontario Canada
Low spark advance?
Ok so at first I thought I was getting spark knock but after doin some more tuning I think it's real and it used to happen consistently at 4400rpm but now that I dropped the timing there to 28* it's much happy there but at 5300rpm it would knock when PCM called for 33* and knocked 4* so I dropped it down to 31 and now it's happy there. Is this normal or do they normally want more timing, this is all for WOT tuning.
#2
Thread Starter
TECH Apprentice
Joined: Jun 2012
Posts: 372
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From: Mississauga Ontario Canada
its an LT1 m6 car. I've seen alot of posts where people are running 34+ degree's from torque peak to redline why would my engine knock so much earlier? unless its in just that good of shape it dosent need the advance.
#3
I've seen alot of posts where people are running 34+ degree's from torque peak to redline why would my engine knock so much earlier?
So you can't really compare what your engine likes to others just for this very reason.
#4
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Joined: Jun 2012
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From: Mississauga Ontario Canada
well I guess I cant complain about spark to much, cause with nearly bald all season tires (that I dident buy but am replacing in a week) shes pulled calculated 5.5s 0-60 on the street. in not ideal conditions i think thats pretty good.
#5
Thread Starter
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Joined: Jun 2012
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From: Mississauga Ontario Canada
i agree with you, I always run 94 octane available here in southern ontario. shes never seen less since I bought it 3 years ago this year. but as I said, cant argu with results unless datamaster calcutions are way off. anything mid 5s 0-60 is quick for a close to stock nearly 20 year old car.