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MAZDA RX-7 13B Rotary Engine Porting

http://store.drifting.com MAZDA RX-7 13B Rotary Engine Porting


 


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Part 7: My 76 Mazda RX-5 Cosmo Restoration - Intake and Exhaust Porting
Has it been nearly a month since my last episode? Wow, time does indeed fly. I've been quite busy preparing to build the engine. So in part 7, I cover the intake and Exhaust porting. The engine is being built with GSL-SE 6 port plates and the Cosmo rotor housings as the basis for a 6 port turbo setup. This port job is fairly conservative, only opening up the primary ports a little and bringing the Exhaust ports close to 2nd gen RX-7 specs. The goal is to maintain fuel economy, low and midrange torque, and idle quality. This episode covers everything involved in porting including: marking out the new ports, grinding the port shape, smoothing the bowls, smoothing port to runner transitions, smoothing the runners, grinding and blending the Exhaust ports.





How to build a P-port RX8 rotary engine
www.rotaryeng.net





Mazda rx-7, engine 13B, Big Street Port. Compression test, part 2.
Raw video. Please bare with us for now





Streetporting a Rotary Engine
I was just sitting at home so I made a video just describing what is done when streetporting a rotary engine.





Rx7 13B Turbo
A look at the work that goes into building a modified rx7 road car.





mini Rotary Engine going 10,000rpm
1/5 scale replica of Mazda 13B-MSP RENESIS rotary engine for RX-8. size: 64 x 64 x 43mm price: 1,050yen (=12US dollars)





Part 12: 13B Rotary Engine Rebuild - My 76 Mazda RX-5 Cosmo Restoration
Just as I promised last episode, it is finally time to build the engine! Part 12 of my RX-5 Cosmo restoration covers the entire process of building the 6 port 13B Mazda rotary engine. While this engine is a hybrid of GSL-SE RX-7 and Cosmo parts, the process is the same for any rotary from a 12A to a 13B NA, 13B turbo, 13B-REW or any other variant of the 13B. This video shows the whole process of the engine build, starting from measuring the rotors and covering everything else including clearancing the side seals, assembling the rotors, complete assembly the short block, setting the eccentric shaft end play and installing the front cover and everything underneath it. It's probably the most complete engine build video outside of what you can buy from the vendors, and as such, is an hour long. After this one, I'm going back to videos under 20 minutes. But for now, grab a beverage of your choice, sit back, and enjoy.





Mazda Rotary Dyno Massive 1664HP
http://www.braptv.com This engine has massive HP, WOW Awsome also on braptv.com Mazda Rotary Queen Street Racing 4rotor GT60 1664HP





Part 3: My 76 RX-5 Cosmo Restoration - Rotary Engine Disassembly And Cleaning
Part 3 of my Cosmo restoration shows disassembly of the 4 port 13B rotary engine and the beginning of the long process of cleaning the internal engine parts. At first I was quite worried about the condition of the engine after looking through the Exhaust ports, but as soon as I opened it up I was pleasantly surprised.





Rotary Engine Breakthrough?
The Wankel engine always held out a lot of promise, but never was able to fully deliver on those promises. It was never very fuel efficient, and the Exhaust temperatures were very high. But now an independent car tech thinks he has stumbled onto what held that engine back. Get more video everyday at http://autoline.tv





MAZDA RX7 Rotary Engine Failures
MAZDA RX7 Rotary Engine Failures MAZDA RX7 rotary engines are strong and displace a lot of power for their size. Traditionally, carbon deposits and heat are their biggest enemies. Rotary engines run with a huge temperature differential, meaning that one side of the engine runs cooler that the combustion side (side with the park plugs). As a rule, cooling system damage should be avoided at all costs. Learn how these issues affect rotary engines and what kind of damage is done to them when they really fail. Presented using advanced software CG animation technology to help you understand. Part of our Automotive Technology Rotary Wankel engines and MAZDA RX7-RX8 series shown here on this channel. Enjoy... *************************************************************************** *********** Amazon Printed-Books & Kindle: http://www.amazon.com/s/ref=nb_sb_noss_1?url=search-alias%3Dstripbooks&fiel d-keywords=mandy+concepcion Google Play Android APPs: https://play.google.com/store/search?q=mandy+concepcion&c=apps Amazon Video DVDs: http://www.amazon.com/s/ref=nb_sb_noss_1?url=search-alias%3Dmovies-tv&field -keywords=mandy+concepcion Barnes & Noble Nook: http://www.barnesandnoble.com/s/mandy-concepcion?keyword=mandy+concepcion&s tore=allproducts Apple iTunes iPad: http://itunes.apple.com/us/artist/mandy-concepcion/id449573393?mt=11





13B Peripheral Port LOUD!!!
Some guys 13B Carbbed Peri-port rotary starting and revving at our mazda car show. Car is a 83 Mazda GLC. It was VERY VERY LOUD in person. I couldn't even hear him hitting the rev limiter





BDC Porting - Front Secondary w/ Bridgeport
BDC Motorsports http://www.bdcmotorsports.com Quick video showing a half-bridgeport plus street port I performed on a Series 5 front iron housing. Video taken in summer '04.





Mazda rx7
1982 mazda rx7. series 5 13b street port, full RB street race Exhaust, weber 48 ida, rats nest removed





R12 12 Rotor Engine on the Dyno short version
12 Rotor engine doing some low power test runs on the Dyno. The Carb would not flow enough for more then 2000 rpm. Working on the fuel injection and turbo setup now.




Which car is faster? Which Car is Faster?





Similar 1/4 mile timeslips to browse:

1987 Subaru RX Turbo Leone (Aust): 12.520 @ 105.000
Peter Healy, Engine: Subaru EJ20T Libetry Spec, Turbos: IHI VF22 Tires: Mickey Thompson ET (rear)


1985 Subaru RX Leone 4WD Turbo RX: 16.138 @ 85.210
EA,


 


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