NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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-   -   rebuild and porting n/a... (https://www.nopistons.com/2nd-generation-specific-17/rebuild-porting-n-3998/)

rotary88 07-23-2002 06:32 PM

i had emailed hayes and they called me back and the guy said that the most i could do to an n/a was a stage 1 street port becuase of the 5th and 6th ports. does any of this kinda of stuff ringa bell to yall or could i expect more from a n/a engine????

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Rotaryman88 07-23-2002 07:15 PM

The hayes guys like to play by the rules. Ignore him, lol. You can just wire the 5th & 6th ports open and go full out bridgeport if you want. What are you looking for? Street performance? Street/Strip performance? Mostly Race? Or ALL race? There's a dif between them....you can easily get over 300HP all motor.

rotary88 07-23-2002 07:27 PM

well i need something drivable but i also want something that i can kick ass with sometimes and have an ok engine life

rotary88 07-23-2002 07:32 PM

also how can i wire open the 5th and 6th ports

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dac 07-23-2002 08:35 PM

Push them open and wrap wire around them and twist.



I bought a couple of Bosch 30 Amp relays and ordered my solenoids yesterday in an attempt to make them electric. I'll let you know how it goes.



With the 6 ports totally closed the motor seems to lose power @ 5,000 RPM. With them wired open it loses some bottem end torque but screams up to it's redline.

Rotaryman88 07-23-2002 08:38 PM

I would go w/ a larger streetport. I wouldnt go nuts w/ a bridge or jbridge or peripheal...those are basically race only. A large streetport will gain you 40HP or so and depending on what else you do to the car, you could easily have a nice quick NA that is still reliable on the street.



As for the 5th & 6th ports, you just wire the actuators to stay open all the time...I don't have a step by step for this, but I'm sure somebody on here does, lol...you'll loose a lil low end torque(like NAs have it to begin w/)...but you'll gain in the top...its a loose/win situation, lol...

rotary88 07-23-2002 08:45 PM

well besides hayes what are some other good places that i can get it ported at and does anybody (pleaing to god lol) have any instructions on how to do the 5th and 6th port thing?? :flush:

Rotaryman88 07-23-2002 08:55 PM

Try www.pineappleracing.com



I've heard good things about them....and i'm sure somebody will come along w/ the 5th & 6th ports answer...I know its not hard, I just dont know the exact method...

rotary88 07-23-2002 09:12 PM

i know this is a real dumbass question but what do the 5th and 6th ports do for ya and how does it help if there always open :bigok:

vosko 07-23-2002 09:15 PM

the only downside to having your 5 & 6 ports wired open is you lose a little but of lowend torque. that is a ok with me https://www.nopistons.com/forums/pub...DIR#>/wink.png


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