Hey guys, I ordered all my turbo kit parts this week and the fuel pump came in way faster then the rest of the parts are expected, so to save time on my install I was thinking about installing the pump tomorrow, the motor is currently stock... nothing done to it whatsoever, would putting in this walbro 255lhp fuel pump cause any problems with the stock setup that I will be running for maybe another week or week and a half? I am currently running 87 octane and am going to start running 91 octane with the new turbo setup, how should I go about changing over? Should I just gradually put like 1/4th of 91 octane mixed with a current amount of 1/4th of 87, and then another 1/4th of 91 after I drive about 100 miles? And then continue with 91 from there? Would that be safe?

 

I just installed my walbro 255lph. car is na right now. it runs fine. fuel pressure stayed the same. As long as you switch over completely to premium fuel before you are turbod, you should be fine. Changing over gradually isnt necessary.