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View Full Version : RADBUL: Four rotors, two turbos, sideways.



Aitch
08-22-2014, 10:02 AM
For anyone that doesn't follow Speedhunters and/or Mad Mike, they just released the engine plans for his new MX5-based pro drift car. They're dropping in a 26B, 4-rotor, twin-turbo engine with plans for at least 1200HP. This car will be insane.

I'm posting details here, but if you want to read the full stories drop by Speedhunters:

RADBUL Part 1 (http://www.speedhunters.com/2014/04/mad-mike-roofls-mazda-mx5-miata/) - intro
RADBUL Part 2 (http://www.speedhunters.com/2014/07/radbul-mad-mikes-new-chassis-takes-shape/) - chassis development
RADBUL Part 3 (http://www.speedhunters.com/2014/08/3-rotors-1-turbo-arent-enough-radbul-gets-26b-tt-power/) - engine development


In the beginning:
http://www.speedhunters.com/wp-content/uploads/2014/03/MADMIKE_ROOFLS_1134.jpg

Body moulds for replacement parts:
http://www.speedhunters.com/wp-content/uploads/2014/03/MADMIKE_ROOFLS_0990-800x533.jpg

Stripped down (acid dipped to remove both paint and OEM seam sealer)
http://www.speedhunters.com/wp-content/uploads/2014/07/MAD_MIKE_RADBUL_0878-800x533.jpg

Seam welding
http://www.speedhunters.com/wp-content/uploads/2014/07/MAD_MIKE_RADBUL_0628-800x533.jpg


Caged up:
http://www.speedhunters.com/wp-content/uploads/2014/07/MAD_MIKE_RADBUL_1049-800x533.jpg

http://www.speedhunters.com/wp-content/uploads/2014/07/MAD_MIKE_RADBUL_2012-800x533.jpg

4 rotors:
http://www.speedhunters.com/wp-content/uploads/2014/08/RADBUL_MX-5_3022.jpg

http://www.speedhunters.com/wp-content/uploads/2014/08/RADBUL_MX-5_3305-800x533.jpg

The interesting part is, regulations restrict them from cutting or moving the firewall. But the NC chassis has a recessed firewall that places the 26B even further back from the front wheels than in their previous RX8.

http://www.speedhunters.com/wp-content/uploads/2014/08/RADBUL_MX-5_2979-800x533.jpg

With a tranny:
http://www.speedhunters.com/wp-content/uploads/2014/08/RADBUL_MX-5_3272-800x533.jpg

Rear-mounted radiator:
http://www.speedhunters.com/wp-content/uploads/2014/08/RADBUL_MX-5_2920-800x533.jpg

Progress so far:
http://www.speedhunters.com/wp-content/uploads/2014/08/RADBUL_MX-5_3017-800x533.jpg

Aitch
08-22-2014, 10:03 AM
There are two "making of" videos so far. Sorry but Red Bull doesn't have a version I can embed here.

Part 1 (http://www.redbull.com/nz/en/motorsports/stories/1331668209193/mad-mike-building-the-ultimate-drift-machine)
Part 2 (http://www.redbull.com/nz/en/motorsports/stories/1331673571355/four-rotors-and-a-twin-turbo-boost-for-radbul)

Mr Wilson
08-22-2014, 10:07 AM
Amazing the technology and build quality of the upper tier drift cars. Speedhunters had a great bit on Daigo's (sp?) Lexus SC.

Aitch
09-13-2014, 03:05 PM
Part 4 (http://www.speedhunters.com/2014/09/radbul-balancing-form-function/#chapter-shock-awe) went up this week.

Aitch
02-19-2015, 12:32 PM
Part 5 (http://www.speedhunters.com/2015/02/project-radbul-mad-mikes-26b-tt-mx-5-comes-alive/).

http://www.speedhunters.com/wp-content/uploads/2015/02/RADBUL_9189N-800x533.jpg