ok.....i have a question. I have a piggy back .....is tuning hard>???


i never have tuned a car in my life.....and i wanna tweak up my PB and see what i can get but i dont wanna risk ruining my motor. How hard is it for a newbie to tune????

and if i mess up..........can i take off all my aftermarket parts and contact mitsu and be lke........i dont know what happened....my engine just blew up


that'll be awesome if they warranty me a new one

i'm at 44 k......16 more thou to go on warranty

 

I think there are some good threads on here regarding tuning. Personally I wouldn't risk it until you have at least a general idea of how to do it. You could try contacting a race shop to get it tuned and just ask them if you could watch and learn how they do it. As for trying to cheat mitsubishi, don't do it, not only is it horribly dishonest, it makes a bad name for people like us.

 

Given the limited number of things you can modify with the piggyback, tuning is fairly easy. It's mostly a matter of setting a Air/Fuel ratio goal and trying to get as close to it as possible.

The piggyback only kicks in under heavy load making tuning even easier, since you don't have to deal with cold map and stuff. You tune mostly WOT. The downside of tuing with the piggy is you can't tune on the fly. Meaning you have to change the map when the car isn't running. That inplies you need some sort of datalogging software or a buddy in the passenger seat who can write values really fast.

Values you'd like him to write down are A/F values against RPM/Volts or Vaccum. Volts are with piggy version 2, vaccum is with piggy version1. Been a while since I looked at it but I think it goes by steps of 500 rpms. So your buddy would have to write down all those values(short of a datalogging system.)

Or you can like me and tune very conservatively and modify the map where your "butt-dyno" feels a need for improvement(I was using Auterra, a vaccum gauge, and a narrow band). 98% of people will tell you to use a WideBand, I felt confortable with my stock setup since I was going conservative. It's all a matter of how far you want to take it, and how confortable you are with the system you'll be using.

 

Plain and simple, use a wideband.

 

when i bought my car they said if i did any piggyback at all it automatically voided all my warranty and they said they can tell immediately if its been changed. so i wouldnt risk it unless u know what you are doing.

 

As soon as you cut any part of your harness you void the whole powertrain warranty.

 

Yeah, I mean, if your motor blows, they will definately look for things that caused it first. And with the piggyback, they would obviously see some tampered-with wires since you have to cut one. So if you go this route, might as well not even think about warranty anymore. I had a PB on my car for only a month or two and then sold it, but my warranty is definately gone. I consider us lucky, I believe Dodge voids warranties after the battery has been unplugged more than 3 times.

 

You could always buy an extension harness and hack into that.

 

Has anyone gotten an extension harness and done the piggy that way? I checked around and "boomslang" seemed to be the way most evo guys went. I checked the boomslang site but they only have em available for the 02-03 lancer. No love for the later years. Is there any other way around cutting the wire?