NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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-   Performance Mods (https://www.nopistons.com/performance-mods-20/)
-   -   1987 13b porting (https://www.nopistons.com/performance-mods-20/1987-13b-porting-1631/)

tda79 02-21-2002 07:30 AM

I was just curious but I've been hearing that I shouldn't waste my time porting(any kind of port) a 13b because of the 6th port or something like that ....can anyone elaborate on this.

:(

treceb 02-21-2002 07:49 AM

Exactly, what are your plans for this engine??

vosko 02-21-2002 10:58 AM

this a BIG 6port street port

http://www.vosko.net/photos/sixports...reetport-1.JPG



you should get a nice power gain with porting like this https://www.nopistons.com/forums/pub...IR

tda79 02-21-2002 01:16 PM

well I was planning to do a bridgeport but I'm also looking at SWAPPING to a tubo engine so right now I'm looking at all the pros and cons and while I love turbos I am also intruiged by raw NA power........and rough Idles mean nothing to me.

so let me know what you suggest on the NA side of the house.

GRASSY ASS.(gracias)

vosko 02-21-2002 11:24 PM

pros of N/A reliability, lower maintenance, lots of high rpm power, no turbo lag



cons: very little torque, have to rev car high to go fast, very loud exhaust note

bigtime 02-22-2002 07:15 AM

what exactly is porting and what does it do

13BAce 02-22-2002 07:17 AM


Originally Posted by bigtime1148' date='Feb. 22 2002,08:15
what exactly is porting and what does it do

http://www.mazdatrix.com/faq/porting.htm


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