If the knock sensor isn't working properly or is disconnected, over 3 or 4K (can't remember which) you are losing 4 degrees of spark. I had it happen on my Trans Am until I hooked the sensors back up.

He should be able to tell from the HPT file he has of your truck what your shift parameters are.

 

Yes, if you get a knock sensor code, it will automaticly reduce the timing under wide open by 8º or so.

 

ok so i gotta get them damn sensors figured out then... i changed both sensors and the harness but its still doing it. it must be my actual main harness itself

this is my code
Module: 10
DTC: P0332
Type: DTC
DTC Description: Knock Sensor (KS) 2 Circuit Low Frequency

 

on the topic of the cutouts. I have dual 3" cutouts right at the collectors of my pacesetters, and I can tell a HUGE difference on the track... plus, like they said, it sounds pretty nasty Esp with that cam in an LS1, you need to let it BREATHE, you are choking the hell out of it on the top end I'll be willing to bet.

 

You going to try to make Quaker City tomorrow? I'm thinking about going.

 

i dont think, i wanna wait till the trans build or atleast till i get my knock sensor prob fixed, i dont think ill get anything better than a 14.1 till i get it fixed

 

im getting tuned by Allen Nelson tomorrow @ 3pm, and hitting the track SATURDAY NIGHT for the first time with this motor also. Should i be looking foward to some low 13's in this heat or maybe some 12's

 

beastmode, letting Quik tune your truck is your main problem!

lol j/k

 

good job! i know you've got more in it. i running a 14.4 in my N/A 4.8 with "NELSON" tune, 4.10s, cutout and redneck air box mod. git-r-done biotch

 

honestly though, quaker city is known to be a tenth or two slower than most other tracks.