NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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-   1st Generation Specific (https://www.nopistons.com/1st-generation-specific-16/)
-   -   porting, cost and type? (https://www.nopistons.com/1st-generation-specific-16/porting-cost-type-5728/)

rukh 09-25-2002 11:36 PM

I am new to this board and 7's, but I bought a 83 GSL about 3 weeks ago and have started modding it. I have so far fabricated a ram air intake and installed a K&N filter, also 8mm accel plug wires. I plan on installing an MSD 6al ignition on the lead coil and porting the engine. My questions are what kind of porting should i get and how much should it cost? Also what else should I be adding to my car, keeping in mind that i don't have alot of money. Also is there anyone on this board who lives in Colorado, and if so in what area? Thanks.



-Rukh

Turbo II 09-25-2002 11:41 PM

all depends on how reliable u want it. i would go w/ a street port. im not sure on the cost of doing it. BTW welcome aboard

















(move this to the first gen forum)

Turbo II 09-26-2002 12:10 AM

hehehehehe

isamu 09-26-2002 12:23 AM

To port the engine you will have to rebuild it because it must be torn donw to get to the housing faces. If you did it yourself and replaced all apex seals, which I would definitely do, you are probably looking at somewhere around 5-600 bucks. Porting usually costs around 300 bucks, so add that to the equation and you are looking at around 900$. You will get the most horsepower gains from a good aftermarket exhaust system. Racing beat makes practically the best stuff out there. Check out there website if you haven't already. Good luck!

rukh 09-26-2002 01:41 PM

should i get the street port first and that buy the Street Port exhaust from racing beat? Or just buy the normal exhaust from racing beat and than decide if I should street port or not? I just feel uncomfortable with the whole "not legal on streets" thing, because this is gonna be my street racing car. heh Thanks



-Rukh

rukh 09-26-2002 01:46 PM

Also how hard is it to tear apart the engine and port it myself if I have some burr grinders and the templates? Keep in mind that I have never torn apart a rotary or any other engine for that matter. Is there anyone in Colorado here who would mind watching me while I do this so I dont completely **** it up?



-rukh

isamu 09-27-2002 01:01 AM

Buy the street port exhaust system, it will work fine with your car. You won't pass emissions if thats what your worried about, but you can always use your old exhaust to smog it. Even if you decide to streatport your engine further down the road, you will need a free flowing exhaust and intake to reap the extra hp from the port. The exhaust will make a big difference just with the stock engine. If you have some mechanical skills you can definitely rebuild the engine yourself. www.Atkinsrotary.com sells video tapes about overhauiling the 13B, which is very similar. Its just that it will cost ya at least 600$ to rebuild the engine yourself. My advice would be to buy the exhaust first, drive it around a bit or until you bore with it and then look into tearing it apart and doing some kind of port job. But we all do things differently so good luck!

rukh 09-28-2002 06:27 AM

alright, cool. Thanks!

-rukh

Racer X 09-30-2002 02:04 AM


Originally Posted by isamu' date='Sep 26 2002, 03:01 PM
Buy the street port exhaust system, it will work fine with your car. You won't pass emissions if thats what your worried about, but you can always use your old exhaust to smog it. Even if you decide to streatport your engine further down the road, you will need a free flowing exhaust and intake to reap the extra hp from the port. The exhaust will make a big difference just with the stock engine. If you have some mechanical skills you can definitely rebuild the engine yourself. www.Atkinsrotary.com sells video tapes about overhauiling the 13B, which is very similar. Its just that it will cost ya at least 600$ to rebuild the engine yourself. My advice would be to buy the exhaust first, drive it around a bit or until you bore with it and then look into tearing it apart and doing some kind of port job. But we all do things differently so good luck!

Can't agree more with that.Wait till you mod the engine before you port it.There a power gains to be made before porting.Header/Exhaust being the best!


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