seakayracing

Please school me. Reliability would be key to this hypothetical build. Plans for this motor would be a prepared FD race car.

I don't know much about rotaries and am hearing about aluminum this and balanced that. I assume the type of port I am looking for is a peripheral port.

So, what procedures/aftermarket parts are necessary to build a reliable NA 20B? If possible please state the costs of each part/service for the 20B.

I basically need to know what after market parts are needed/not needed as it seems many of these parts cater to forced induction 20B builds.

Thanks in advance

FDTC

You need to look around the forum... there are a couple build threads that are 20b n/a! Gtorx7 has a good thread, gmonsen has a great n/a with rx8 rotors, Matt724 has a race built 20b n/a pp build! In short... look around!

t-von

iTrader: (8)

No need to really learn anything if you got the funds to buy this.

https://www.rx7club.com/race-parts-only-228/20b-peripheral-port-race-engine-13g-replica-california-872276/


For what he's selling it for is a steal based on that engines history. It's already built and comes with a already tuned ecu. All you would have to do is buy a subframe to install and finish out the exhaust. It don't get any easier than that. Hell if I had any money, I would have bought this long ago.


Edit: I decided to research the original owner of that engine and found this.

http://www.youtube.com/watch?v=jtOLwF2J9b8

FDTC

nice find T-von... I'm guessing its still for sale.

Evil Aviator

A high-rpm peripheral port engine is not something that a novice can simply piece together, as it requires a great deal of skill to modify and balance properly. You will need to contact one of the high-end rotary engine race shops to have them build and tune such an engine. The cost will be about $20,000 to $50,000 USD, depending on what you get. Good candidates for this would include the following:
Downing Atlanta
http://downingatlanta.com/downingatlanta/
Mandeville Auto Tech
http://local.yahoo.com/info-13427633...ch-spartanburg
ISC Racing
http://iscracing.net/
Pineapple Racing
http://www.pineappleracing.com/
Racing Beat
http://www.racingbeat.com/
Mazdatrix
http://www.mazdatrix.com/

Building a 20B with forced induction requires less skill and less money than a race-level NA 20B, plus those who want a street-legal engine with a lot of horsepower can nearly cut the noise in half with a turbocharger. This is why you will see most shops catering to turbocharged engines.

ghiaracer

Buy my engine.... it will save you a load. I want to get away from cars and get a nicer airplane.

j9fd3s

iTrader: (3)

i built a 20B-TT FC, and the next project has been a 12A PP first gen.

in a way the 3 rotor was easier, i bought a jdm engine and dropped it in the car, the challenge was wiring and tuning the ecu, in 2001 not many people had done it.

Peepers (the PP) was really simple to put together, mazda has a competition prep book for it. its literally a bolt on. however, the devil is in the details, getting all the bolt on parts to work well together has been a challenge!

Peepers also runs way different than a stock port, so your experience with stock port engines almost doesn't count. noise is a problem, however the rest of the stuff you hear about PP's isnt true. Peepers will happily idle @750...

so i agree with evil, NA PP is harder than turbo.

diabolical1

iTrader: (3)

well, i won't jack this thread, so if you get a minute (and you're so inclined), could you PM with the title of the Mazda PP book and also offer maybe an example or two of your trials? thanks.

Slevin_FD

iTrader: (26)

Could I also get the title of this book