Stock 2K C5 knock?

[Motohead1]

Hey all just got HPT and basicly just playing around with it at the moment until I get some real mods and a wide band. I have been reading alot and its my understanding that NA LSx motors are best tuned with a wide band and for 0 knock. My C5 FRC is bone stock save for 03 Zo6 Ti's and a Vararam CAI. I havent messed with and fuel or timing just the closed loop O2 stuff to squeeze 1 more MPG out of it.

Here is a pull in 2nd and it shows some knock starting I backed off as soon as I saw it. Is this normal?

Most of my tuning knowledge comes from the DSM world as I have been playing with the little 4 bangers for years. This is my first LS1 car though.

Any insite is appreciated. Thanks.

[Russ K]

Yes, the 2000 & down LS1 cars have too much spark timing. I set up your main spark tables the same as a 2000 C5 6 speed that I tuned for a customer. His car had Dynotech headers, 160*F stat & a Blackwing airfilter.

Russ Kemp

[Motohead1]

Thanks! Ill give it a try. Is this a custom timing map you did or is it just a 01 map?

[Russ K]

No, the timing map is my work.

Russ Kemp

[Motohead1]

No knock now! Thanks for the timing map. Any other 2K and older ls1 tricks I need to know?