ideas?
ideas?
99 a4 corvette
3800vig tc ,rpm level 5, 317 heads,a&a blower cam,a&a s trim 10psi,3.42,tsp headers,hi flow cats,borla cat back,550rwhp no meth yet
just some information on plugs might interest someone
where is your wideband located?
"All that is needed for the triumph of evil is that good men do nothing..."
if its me ...mine is on the drivers side about a foot behind the collector before the hiflow catOriginally Posted by Highlander
99 a4 corvette
3800vig tc ,rpm level 5, 317 heads,a&a blower cam,a&a s trim 10psi,3.42,tsp headers,hi flow cats,borla cat back,550rwhp no meth yet
If you really want to get an idea of the WOT run, you need to put in new plugs, run it hard cut the ignition and grab neutral at the same time, then coast to a stop and pull a plug. All you can tell from that is it's not so lean it's melting the plug. Driving 1/4 mile slowly probably makes the reading close to useless.hree back to back WOT runs were made and gently driven 1/4 mile to the garage to remove them.
At least that's what I learned back when people actually read plugs to tune.
Ira
You also need to look at the base of the ceramic, not just the tip of the plug. I know that the base is where the main jet reading of a plug is looked at.
98 silverado 4wd excb 5.7l, zz4 cam,roller rockers, shorty headers, 0411 swap, Flash Scan V1 commercial
You're also looking for white specks, i.e. detonation. I realize this is supposedly irrelevant to the OP, but it's something to look for nonetheless.
1998 GMC Sierra K1500 5.7/4L80E, longtubes, 411 w/COS 5, marine cam/intake, Whipple. 91 octane at 6000'.
1997 GMC Sierra K3500 7.4/4L80E, 411 w/COS 3, Whipple, small cam.
2004 Corvette Z06 with longtubes.
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