I am almost done with a rew swap into my rx8. As of now I wont be pushing it so much. I want 350 whp out of it. So how much can the stock fuel system hold safely and provide fuel at peak demand from the engine.

 

breaking out my spoon .... for general info only, it's not all entirely accurate ...i

https://www.rx8club.com/series-i-maj...-modes-176491/

 

Like we discussed...depends what you are doing with the car...... up to 325 with a returnless system driving around town....

not enough for a 200hp NA car at the track under a 1/4 tank.....

A return system will make the starvation worse.......so really all bets are off with the stock system at the track

Personally...if you like your motor...anything over 300hp is asking for it as far as I am concerned...even pissing around towm