slow tune!

[projectblackbird]

i have a 98 ws6
234/248 cam
595/605 lift 113lsa
longtubes and y-pipe
3600 yank
3.73 gears
ls6 intake
cnc'd heads
slp lid
can some one please tell me where i went wrong in my tune? my best time is only 13.81! the stock car with 171k on it went 13.83.

[waterbug1999]

I see 18* for timing in the WOT area in your spark tables. So, just wondering why it got set like that.

[projectblackbird]

i think it was set back for nitrous! but even i don't pull that much out for my big block

[waterbug1999]

i think it was set back for nitrous! but even i don't pull that much out for my big block

If its running 18* N/A its going to be down on some power.. Most LS1's are about 25*-28*.

You should invest in a timing tuner so you can run full timing N/A, then when you spray it retards timing to what ever you set it to.

[projectblackbird]

do you mean like a msd timing twister? i was spraying the stock setup with no adverse effect! do you think it needs to be retarded? if so how far? i only take out 10-12 for a 300 shot on my big block.

[waterbug1999]

do you mean like a msd timing twister? i was spraying the stock setup with no adverse effect! do you think it needs to be retarded? if so how far? i only take out 10-12 for a 300 shot on my big block.

You were spraying on the stock shortblock it set at 18* of timing.. The tuner prolly set it up that way for the spray, I think its a tad too much. And N/A it will make your car feel like a pooch until you bump the timing back up.

[projectblackbird]

i sat here most of the day copying all of his tune to a stock tune except for the spark tables! i don't know much at all about this type of stuff but i think i should see a pick up in something or blow up trying

[5.7ute]

You are most definately leaving power on the table with only 18 deg advance at wot. Like waterbug has said boost your timing up at wot starting at 25 deg. I wouldnt go much further than 27 without a dyno or knock phones though.

[projectblackbird]

thanks 5.7! do you think that stock spark table will work for some motor passes

[5.7ute]

thanks 5.7! do you think that stock spark table will work for some motor passes

Between 25 & 27 degrees is where you want it for the motor passes. On the spray you will obviously need to pull timing from there.