which is better for me to get and why?

we need more info!

the 6 ports are growing on me, but we need more info (how are you gonna use it, how much power, money, all the good stuff)



mike

I was just asking because im going to get an RX-3 and put a 13b engine turbo but i don't know which i should get. I hear the 6 ports dont run as well and that there are not much gains from porting. I just want to know more about whats the difference between them.

I have no experiance with a N/A 6 port, but I would assume that the 4 port would run much better with the turbo... Sombody get Ito-san over here... https://www.nopistons.com/forums/pub...#>/biggrin.png

i heard from few people that put turbos on 6 ports engine that they gain 20 hp over the turbo II hp but i heard too that 6 ports engine create alot of turbulance but i only hear that only in N/A form, i dont know in turbo.

Are na engines better than turbo ones?

N/A has a smaller ex port and high comprssion rotors, both bad for a turbo engine... I've never heard anything about the side ports... I would only assume that if it was a good swap everyone would be doing it with their turbo engines, but I've never seen it done... I have see people use the 4 port on N/A engine however...

How many ports do both 13bt's have and the 13b-re

13B-RE has the best 4 ports of any rotary engine.. The primary ports and runners are huge compared to any of the other engines and are about the same size at the FD secondary ports, the secondary ports on the RE are the same as the FD secondary ports.. If you want to build a full brige ported engine the 13B-RE is the engine you want to use....