playing around with my sct when it came to spark adjustments what would be a good adjustment for this. leave stock 0 - 4000 spark or go up or down seams to want to go by
200 - 4000 being the first step up and goes on to around 2000 - . or goes down to -200 - 4000 starting off. also the wot setting is there a general rule fore this its set to normal but i changed it to 2% leaner but it can go more or even go richer. or should i leave it stock.

 

alright....here is the deal. you can bump the timing up as high as you want. the higher you put it, the more horsepower you will get out of your tuner. what you want to make sure of tho, is that you dont hear your engine knocking/pinging/or making any other strange noises that it DID NOT make before the adjustments. so if you hear it ping...then back off the timing by one degree and try it again. if it still pings, then keep backing off 1 degree untill it doesnt, then you will be at your peak point.

now something else you HAVE TO take into considertaion when doing this. the higher you put your timing, the higher your octane of gas needs to be.

your a/f ratio, i wouldnt mess with it too much, b/c you dont have any way of knowing what it is at right now. thats more to be messed with when you get a dyno tune.

here is how i run mine....brenspeed 93 octane tune....i fill up on 93 and add 2 gallons of 101 ocatane (the sell both at the shell i go to), then on the tuner i have mine turned as high as it will go on global spark, and as high as it will go all thru out the rpm range, and my car does not knock or ping what-so-ever, and runs like a bat out of hell.

 

How much of a power increase can one expect with just a tuner and changing the fuel used? I have a K&N filter, but don't want to spend money on bolt-ons that I keep hearing are not worth the money on a 2v.

 

the gains are noticable.

i've actually been pretty impressed with each mod i have added, over the past couple of years.

i like reading on here how hardly any of the mods are worth it, and the gains from the bolt ons are barely noticable, ect....b/c it has my expectations set VERY low with each mod. i go into thinking: ok...i know i prob wont notice a difference, but oh well. then im always suprised, because each mod i have done, i have noticed nice/noticable gains...and each mod stacked onto each other does add up.

dont start with the tuner since its like almost 400$. if you are still stock, spend $160 on an o/r midpipe. it will make your stang sound MUCH better/meaner/louder, PLUS you will get to see for yourself what kind of gains you get/feel. go into it thinking just what everyone on here says...the hp gain prob wont even be noticable...it will just sound better.

 

there was actually an article with a dyno sheet. and i believe the average increase through out all rpm range was about 11.5 horsepower peak being 16 horsepower, And torque was about the same amout of increase.

 

sorry that was with the spark timing all the way advanced.

 

anyone done this with a diablo tuner? just dont want to fugg things up

 

SCT....Diablo....Sniper....steeda timing adjuster, etc....

it doesnt matter what the brand is, its all done the same way....spark advance, is spark advance.

the whole key is just making sure you dont hear any NEW noises AFTER you have made the adjustments.... ie: knocking, pinging, any other ab-normal noises. like stated earlier, if you hear it ping, back off one degree, and then try again. if it still pings, keep backing off 1 degree untill there is no knock/ping.

like i said with mine its advanced all the way up, on both global settings and thru out the rpm band....now i HAVE NOT tried the timing all the way up on just strait 93. it might ping, who knows. like i said i usually add 2-3gallons of 101 octane to my 93, which allows me to buimp my timing even higher (than brents performance tune already has), which makes more horsepower...and i have never heard her ping once.

 

can you hear this knocking and pinging with the car sitting at idle? what is it set at stock? and what would you say try moving it up to for the first time? sorry for all the question just dont want to make a expensive oops

 

just load up your 93 octane tune....or your performace tune.

when you go to modify the performance tune, just add one degree of timing everywhere. add one degree in the global. add one degree in the 0 - 2krpm range, one degree in the 2-4krpm and one degree in the 4-6k rpm. load the tune. take it out for a test drive. listen for any new noises that were not previously there. if you dont hear ANY NEW noises, then go and add another degree of timing everywhere. test it out.

keep repeating the process untill you hear it knock/ping....once you hear it knock, then back off the timing by one degree (where you just had it prior and it ran fine with no knocks), and you'll be at your peak/max spark advance for 93octane. find a way to get your octane a little higher and then repeat the above process to find its peak.

make sense??