Choda

iTrader: (1)

Do you guys turn off the knock sensors at a certain rpm and above, leave them alone, or turn down the senseativity. I'll have to plug in my scanner and do a pull to see what my timing is at

MechE

iTrader: (3)

How much boost: 13psi
boost: turbo, A2A
fuel: pump 93, 50% meth 17gph
target AFR: 0.78 lambda
compression: stock 706 heads, ls9 gaskets
timing: 18

oakley6575

iTrader: (5)

I just increase the ramp in rate when it pulls timing. So if it detects knock and pulls a degree, i have it ramp back up to full timing quicker than stock does.

Atomic

iTrader: (42)

Recovery is a bit quicker, but sensitivity is the same or actually more sensitive.

GMCtrk

iTrader: (27)

If youre detonating in boost it doesnt matter what your knock sensor settings are.

foose04

iTrader: (3)

Tune up thats been on the truck about a year now.

How much boost: 20psi
what type of boost: T4 S480/92 1.10
What type of fuel: pump E85
target AFR: 11.0-11.5 on gas scale
compression: 9.5:1 5.7L, stock 317s, LS9 head gaskets
max timing: 15.0 thru peak Tq, 17.0 up top thru 7,000

smokeshow

iTrader: (16)

How much boost: 25psi
what type of boost: T4 S484/96 1.25
What type of fuel: E43
target AFR: 11.2-11.4 on gas scale
compression: 9.0:1 6.3L, stock 317s, LS9 head gaskets
max timing: 18.0 thru peak Tq, 20.0 up top thru 6700

TIM Z

iTrader: (12)

I'm so jelly of you 240kpa + guys

Mines very Similiar to your Vortec, likes the lower timing .

BigKID

iTrader: (5)

How much boost: Avg ~12psi (figuring out some boost spike issues)
what type of boost: Kenne Bell 2.8L
What type of fuel: pump 93oct E10
target AFR: .78Lambda / 11.45 gas scale
compression: 9.5:1 6.1L, TEA/TFS 245 heads, LS9 head gaskets
max timing: 20* across the board

I am still tuning to find what this setup likes. Previous setup with smaller cam and hand ported 241 heads on 15psi liked 20-22* timing dependent on air temp. Lower timing gained ET and lost MPH. With a more efficient combustion chamber, this setup may actually like less timing.

Vortec350ss

iTrader: (20)

It's great to see so many replies to this. I wish there were more supercharger guys who would chime in... seems theyre all in hiding. Turbo's rule the roost now anyway... I know I'll never compete on the big end with you guys.

I may try 16 on one of my next test runs... possibly 17 as revs climb to help with top end even more. I used to be able to pull 6300 RPM with the cam NA but the last new times out it kind of felt as though it was dropping off a little over 6k... maybe more timing will help that.