Ok guys this is my problem i recently got done building a b20vtec setup using a b20b bottom end and a built b16 head some no name headers and no intake with b16 intake manifold it runs okay expect i'm using a h22 ECU chipped for a h22. ( Dont ask why ) i have a buddy of mine that does chipping and tuning and he is telling me that he can sell me a p28 with a map for a b20vtec with a basic tune my question is if i buy this ecu with this basic tune and this tune is fine will i need re-tuning ? or should i just save money and dyno tune my hatch ? please need help i'm tired of my car not being able to run to it's full potential i've never really owned any car as fast as this one i would like to enjoy it.

 

you need tuning regardless. your "buddy" is trying to sell you a basemap.

how have you come this far with this car and not know this?

 

never learned tuning ... maybe it's silly of me but w.e now i know.

 

What he's offering you is a basemap. Basemaps are good for one thing - getting your car to run safely so it can be driven to a tuner. That's it.

 

okay. but isn't a basemap a saved tune?

 

It's a generic tune. No two engines are the same and can safely run off the same tune.

 

save up 300 bucks, find a real tuner. See what he tunes with.
make sure its not an idiot with a laptop.