to see if my intake and tb set-up is not to small for my aplication 402-ported stock tb-ls6 intake, i should not have any vacume in intake at wot, wright? what should i see on scanner for map?

 

You should see 0 or very close to it if there isnt any restriction in your intake setup. Not too sure what you would see on your scanner though as I always hooked up a Vac. gauge.

 

See what the MAP reads, key on engine off KOEO, then do your run. Compare the two numbers. A 2-3 kPa drop is a good flowing system.

 

i have acesse to a scanner, 2-3 drop from my reading of engine off ?, that would be vacum 2-3 below that?

 

What you want to do is see the difference. If you have 98 kPa with the key on engine off and 95-96 at WOT, your in pretty good shape, if you see 92 kPa that would show a restriction. The kPa changes with the the weather or the elevation where you are, you should check it before you start tuning to see where your starting point is at for reference.

 

thank you, i understand.