Should I be porting the primary intake on my motor build? The motor is ported with Rb street port template. From what I've read, porting the primary would result in a weaker low end but a stronger top end. I'm looking to get between 250 and 300 hp, should I port the primary? This car has to be versatile because I drive it a few times a week. Any opinions?

 

i actualy wouldnt mind finding out to im about to buy a rx7 and i want to know wut kinda port i can do out of my own home i want to get the most power i can i dont care to much about the idle change or anything just as long as it is somewat drivable on the street and how hard it is to do the port?

 

Port the primary inlets.

 

if anything, it should be the primary that must get ported.

 

From my experience I would have to say port the primaries. After all thats where the primary injectors are. Those are the ports that do most of the work down low´(street). Just don´t go too wild on them because then it will lose port velocity and your bottom end will suffer. On my bridgeport porting the primaries smaller gave me a much nicer transition.

 

See, glad I asked. First off, the RB template comes with no primary port? I asked this question on rx7club and A good source said no to port the primary.