I'm sure this a no brainer to some, but i wanted to make sure.

If I wanted to self-tune my EVO using ECUflash, do I need a initial reflash from a tuner like Dynoflash or Jestr and then am i able ot adjust parameters? OR can I just download the ecuflash software and start making changes via laptop and tactrix cable?

Thanks.

 

it would be easier to adjust a baseflash, but you could do it from the stock map

 

If you dont mind me asking, how so would it be easier?

Thanks.

 

It would be easier to modify a basemap because someone who has more knowledge than the general lay person will send you a map that has been tried and true.

It will be a conservative map that will allow you to tweak the pertinent tables to suit your needs.

Analogy:

You could add some salt or pepper etc to someone's world class chili to suit your tastes, right? But, you wouldn't know how to make the chili in the first place now would you?

 

? when you say they will send you a map..., where can you get maps that have beeen modified? ive been lookin around and cant find any??

 

he means the tuner, ie jestr and etc for a small fee...

 

o gottcha, so one of those tuners send him a map of a tune that has been tried and will work good with your car, and then you tweak it yourself here and there..

 

with jestr,
You send him $52 via paypal, a copy of rom ( i think thats what its called ) and he sends you an updated rom image that has a updated flash on it. Then with that base you can make adjustments yourself.

 

ok so either that or if u know what your doin, you can just start with the stock maps and begin tweakin those correct?

 

Yeah thats seems to be what I got from the other responses.

 

It's not easier to modify a map based on someone's supposed "professional" tune.

1. They didn't tune it for your car
2. Unless you understand the thinking behind their tuning, you can't follow through and continue with their tuning
3. It is just as easy to change a factory map than it is to change a purchased map. I think if you take look at some purchased maps, you will find very little difference sometimes.

 

Its actually interesting, many people ask me for base maps, generally I won't provide base maps for cars I don't know.. There isn't much value in doing that. I suppose I could create a map, add a few "educated guesses" at where the timing and fueling needs to be, and give that to the person. But I think the stock map is a much safer starting point. Its inevitable you'll make an error here and there, so its important you don't give yourself enough rope to hang yourself.. Flash Tuning is already enough of a hangmans noose, the last thing you want is to have the executioner standing there next to you..

 

I have a custom flash, when I started tunning myself I flashed in a stock ROM. My custom map was great for power, my driveability wasnt what I wanted. The way I have been modifying my map I figured it was safer to start at stock. I have been toying around with injector scale and some of the suposed "closed loop AFR" maps. Didnt want 8 degree's of peak timming (custom map ) while I was toying with new ideas. Its not a hard thing to do, you just need to go VERY slow. Change someting and go for a ride, change something else and go out again. I keep a note book in the car at all times. Helps me keep careful track of what the car is doing and where it is going. For me its just easier to flip through a few pages rather then open 17 files.

 

EVOVETTE, i want to do exactly what you are doin. That seems like a very safe way to go about making you adj. I cant wait to get a grip on tuning.