what does itdo anyway?

 

Its a unit to control your fuel delivery... Help tune your cars air fuel ratios... Some also do ignition timing and vvti timing... It pretty much tricks the stock computer into thinking it needs to add or take away fuel from the mixture.

 

is there a good tutorial and resource link to a good one? i read about the chips and how they are junk, so is the piggyback worth looking into? also if i do what should i do to ensure that it is safe? thx

 

a piggy back isn't really useful unless you are running forced induction, so i don't think it is worth the money for an n/a engine like yours.

anykind of tuning is very risky, but i am told there are a set of cautious procedures to effectely tune the engine without damaging anything.

 

unless your building the motor, i dont think any kind os mamagement is necessary

 

i know this is a dumb question, but what does n/a mean?

 

normally aspirated = n/a

forced induction( turbo/supercharger/nitrous to some) = f/i