i'm currently running 253 Wheel HP on my 05 g35 coupe 6mt. i don't want to do a turbo or anything for now. I just want naturally aspirated. What can i do to the internals of my engine to get me some hp already getting it started to handle a turbo. so far on the inside of my engine i have done nothing. I want to get on the 300hp or so for now. What upgrade can i do that will give me plenty or power and wont cost that much. pls any sugestions. If so what and what brand. i want to built my engine first before putting a turbo.

 

well its counterproductive if you wanna up N/A power but at the same time prepare it for boost since an NA motor thrives on high compression and a boosted car typically needs to have way lower compression to avoid detonation. You need to make up your mind. You should be looking at a fuel return system with an upgraded fuel pump, exhaust, forget an intake system since a turbo kit will change all that and just focus on buying pistons, rods, bearings, studs, etc... and eventually get it all put it.

 

Stroke it!!

 

big bore + short stroke = HP

These engines can handle turbo pretty good. Do as tecni says, just buy light.