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intended application. Since it would determine your turbo choice. That being said, for turbo applications CFM raw flow seems to be more important, so you're going to focus on wherever the restriction is. Most builds involving aftermarket cams, built heads, larger valves, etc net only a small amount of additional power unless everything is done together. For example if you do port work on the heads, then maybe the area of greatest restriction changes to the throttle bodies, intake plenum or valves in the intake side. Furthermore, it could create an issue of restriction on the exhaust side and the ability to release those exhaust gases quickly enough, so exhaust valves, porting, exhaust manifolds, turbo specs (housing, A/R, etc), and so on. If you think of it like blowing through a drinking straw, you can continue to blow harder but have diminishing returns over a certain amount of "pressure". You need to make the straw larger to free up that restriction and make power easier (on less boost). Head porting, valves, less restriction throughout the intake & exhaust tract allow you to make the same/more power on less boost. So if I'm right, it sounds like you are looking for the best way to add power for less money, but it really depends on your turbo choice and intended power goal. There isn't simple answer since they all build off of one another. Finally, if you've gone through the trouble of building your engine, then I'm assuming you have some higher power goals? You need to match the turbos to the power goal for best efficiency, followed by the mod support needed to achieve that easily on those turbos. The support mods needed should also reflect the desired method of power delivery, less lag/more lag, less torque/more torque, drive-ability, etc. TL:DR version: What is your intended application and power goal? That will determine how much you should focus on mods outside of bolt-ons and where.
1993 Nissan 300ZX Slicktop (Oxford Gray Metallic)
1991 Nissan 300ZX Slicktop Track-Star
1992 Nissan Skyline GT-R (Gunmetal Gray)
- Long Live the Z and Godzirra! -
"Love cars. Love people. Love life." - Mr. K. |
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12:47:14 06/08/22
