spark!

[Turbo2gnx]

why would factory spark settings be so high when the motor shouldnt go past 15? having a haed time with spark tables! and getting striaght answers is like pulling teeth!

[SultanHassanMasTuning]

need to be more specific, what motor/ecm you are talking about and year.

[Turbo2gnx]

hemi motor 5.7,6.1, 6.2, 6.4. ive read that 15 is safe and 19 is pushing it so why from factory the spark tables are higher than 19? i try to compare and what little i find able to be read are high. mine is a 08 body and system but motor is a 06 with mods. trying to tune to get as much torque as possible but kr! so i lower the spark to 19 max and torque went down as well! ive asked how to lower my spark and raise my torque but....

[mbray01]

08 will want more than 15, low 20's. I see some guys put 25, but 22-24 is usualy pretty close

some newer stuff, scat packs etc only want 18-19

its all about the cylinder head

[Turbo2gnx]

the body is a 2008 but the heads are 2013 eagle heads. could i just use a 09<pt table and adjust? i see the stock tunes are rough compared to these tunes from youtube, they are smooth compared to stock..

[white1]

Why shouldn't you go past 15?

I'm not saying you should, or shouldn't, but what makes 15 the magic number? I've been able to push a 5.7 close to 20, a 6.4 wont take that much, my 6.2 I believe is at 10 or 12. I'm just saying there isn't a blanket number for every vehicle

[Turbo2gnx]

well ive read that i should go past 15 but max 19.

[Turbo2gnx]

could i copy a stock 09<pt table a scale it down to 25 max ?

[mbray01]

Honeslty the only way to know is with real world testing, go to a track and see where it stops getting faster, or pay for dyno time. Whats safe is a subjective thing. Guessing isnt going to get it right.

[white1]

Honeslty the only way to know is with real world testing, go to a track and see where it stops getting faster, or pay for dyno time. Whats safe is a subjective thing. Guessing isnt going to get it right.

^^^^^^^^ This

[Turbo2gnx]

thanks for the info. i was asking if copying a stock table and adjusting was a good place to start. yes i know guessing wont work! just looking for help! ill use youtube more, never can get a straight answer here. thanks.

[white1]

thanks for the info. i was asking if copying a stock table and adjusting was a good place to start. yes i know guessing wont work! just looking for help! ill use youtube more, never can get a straight answer here. thanks.

Starting from the stock table and going from there is a great place to start. Your final numbers will be what the car/truck wants. It will not always be the same number. Ive tuned similar vehicles with similar modifications and had different results. There is no generic answer

[Turbo2gnx]

thank you. thats all i was looking for at this moment, could i use a 09< tune and adjust to get a better tune seeing how i have a 08 block and 2013 heads and cam and couldnt make sense of 15-19 high spark or 20-35 high spark.