stock tune sucks

[SSDEUCE]

i just got back from a test drive with my scanner did a snap shot of a holeshot to 90 mph and 5500 to 6k the timing was only 18-21 so is the curve that bad or is it that lean i'd like to see how she'd run with at least 34-36 oh yeah my cars a m6 w/ cai and cb basicly stock

[pajeff02]

Was the PCM pulling timing due to knock?

[SSDEUCE]

not sure have to look again see if it show the knock retard kinda agravating knowin that much is left on the table

[0rion]

I would have to look at see what the stock table looks like for an 01 because I don't know off the top of my head but probably maxes at 24ish. Keep in mind these motors don't need a whole lot of timing. 28-30 degrees is usually plenty even for a cammed car.

[Frost]

.... i'd like to see how she'd run with at least 34-36 ..k

??It's not small block chevy! It will knock until it falls apart if you run that kind of timing.

[SSDEUCE]

ah good to know i run 38-40 in my 355 and 406 sbc's so its more lika a ford my buddys ford likes that kind of timing

[tep98ws6]

a lot of the time once you start to add timing and you keep on adding it, you will start to lose HP rather than gain it. and get a pretty impressive knocking/cackling noise then probably set off the knock sensors/MIL like crazy.

[SSMuscle]

a lot of the time once you start to add timing and you keep on adding it, you will start to lose HP rather than gain it. and get a pretty impressive knocking/cackling noise then probably set off the knock sensors/MIL like crazy.

Hey I get this cackling noise, and it happened after a guy did my tune. I asked him if it was the tune that gave me this tapping noise, and he insisted it was a mechanical prob.

[tep98ws6]

Hey I get this cackling noise, and it happened after a guy did my tune. I asked him if it was the tune that gave me this tapping noise, and he insisted it was a mechanical prob.

Pushrod engines/LS engines are notorious for that noise. Chances are it may be a pushrod which may be bent on account of too advanced timing. If it is that, it's a pretty easy fix, but I would ask your tuner about where he has the tune adding/removing timing first before doing anything. Do you have a check engine light on?

Anyone with more tuning experience feel free to correct me as I am a tuning n00b!

[0rion]

Hey I get this cackling noise, and it happened after a guy did my tune. I asked him if it was the tune that gave me this tapping noise, and he insisted it was a mechanical prob.

I don't want to hi-jack the original posters thread so start a new thread with this question and tell me when it does it. Idle, part throttle load, or wot? and can you get any more descriptive than cackling?

[tep98ws6]

I don't want to hi-jack the original posters thread so start a new thread with this question and tell me when it does it. Idle, part throttle load, or wot? and can you get any more descriptive than cackling?

Oh man! I thought I was talking to the OP the entire time! My bad! Both their names start in SS

[SSDEUCE]

go with it yall i was just throughin what i saw out there for all open thoughts and experiences

[SSMuscle]

question has been continued here...............thanks.

http://www.ls1.com/forums/showthread...69#post2127269

[mrr23]

FYI here's your high octane timing table. you were most likely in the .80 - .84 cylinder airmass row

[SSDEUCE]

thats some cool info now what is the .80-.84 airmass exactly is it kinda the efficency of the engine

[mrr23]

that's how many grams of air that's going in per cylinder

[SSDEUCE]

so the bigger the number more air basicly leanin it out backin the timing down

[mrr23]

pretty basic.