im now ready to install:
Jun type 3 cams
Jun Valvetrain
Jun Valvesprings
Jun Retainers
Toda Timing Belt

now im facing a new concern... would this setup force me to use higher octane gas? true or false or can i continue using the 91 octane gas premium level?

 

are you raising the compression ratio???normally higher octane would be needed in higher boost conditions or higher compression......i think you will be ok on normal 91 but if you hear any knocking then its time to step up....too bad you cant get 93.... octane has to do with how slowly the fuel burns off not power.

 

what is your compression ratio? just make sure you are tuned probably and you should be ok. california has 91 octane and people drive around with 13.1

 

don't rev too high on that setup

 

higher octane fuel is for advanced timing or higher compression...

 

What kind of engine management are you using with that setup? JUN ecu, Hondata...??

 

i havnt bought it yet but will be buying the hondata stage 2 for the gs-r. so i should be okay with this setup as long as i dont over rev, 91 octance should be still okay =D