I am fairly new to the turbo scene. I own a 94 LS/VTEC turbo del sol. I am going to get it tuned and would like to be able to have multiple tunes(one at say 5psi for daily driving and one at maybe 15psi for the track). With my lack of knowledge i was told i need a piggyback system to do it? Is this true and what does a piggyback do.

I have the hondata s300 ecu already, can i run multiple tunes wiht just that?

 

"Additionally the s300 has on board flash memory which allows a datalog recordings to be made without a laptop, for later access and download to a laptop. Multiple recordings can be made and stored in the s300 for a total of around 40 minutes of total datalogging time. An external switch can be used to start and stop recordings, or engine conditions can trigger recording. For instance in a drag race, the s300 can be set to start recording once the rpm is bought up to near launch rpm and automatically stop once past the traps and the rpm drops below a certain level."

Straight from Hondata's website.

 

you don't need multiple tunes. high and low boost is on the same map.