For the rotary-heads...R26B

NarendZORCE · Posted: Mon May 16, 2005 4:39 pm Post subject: For the rotary-heads...R26B

Special thanks to Razkal for the find...

The R26B four rotor engine
The R26B four rotor engine was developed for Mazda's racing program in 1990. It was an all new design derived from the 13J engine (specifically the 13J-MM). The LeMans specification engine produces 700bhp@9000rpm, 607Nm/448ftlb@6500rpm, and engine capacity is 654cc x 4 rotors=2616cc

The Mazda LeMans 787B racer powered by this engine won LeMans in 1991, the making both the first Japanese manufacturer and the first non-piston engine to win. Acceleration of the 787B is impressive, as it weighs 800kg, giving it a power to weight ratio of 1.2kg/bhp (2.6lb/bhp).

As a comparison consider the following: Ferrari F40 2.6kg/bhp (5.7lb/bhp), Porsche 911 turbo 4.5kg/bhp (9.9lb/bhp)
This will allow a 0-100m (328ft) sprint in ~2.5 seconds, and a 1/4 mile with a terminal speed of 250km/h (155mph) - somewhere around 9 seconds! (actually maybe about 10 or 11, as the car is not set up for drag racing)

Unfortunately the rotary was banned from European racing by FISA in 1992.

To a certain extent the USA's IMSA GTP series is very similar to LeMans style racing and the RX-792P carried the rotary flag for a while.

The R26B used in this car was down a little in power and torque, 650bhp@8500rpm, 570Nm/420ftlb@6500rpm

Mazda R26B Specifications
Layout: 4-rotor, in-line
Displacement: 654 cc x 4-rotor
Compression ratio: 10:1
Induction system: Telescopic intake manifold system
Horsepower: 690 bhp @ 9000 rpm
Torque: 448 lb-ft @ 6500 rpm
Weight: 180 kgs.

check this page for more info on 4 rotor engines and information on the 13J real cool stuff! http://cp_www.tripod.com/rotary/pg03.htm

Cool

zoom-zoom bitches!

Razkal · Posted: Wed Jun 01, 2005 10:17 pm Post subject:

woi!...i say was sum new stuff on the engine... Laughing

well dat real cool to see mih post fling up sumwhere else
btw..nice forums here narend Cool

....i go populate de mazda room wid rotary articles Laughing

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Computerman · Posted: Fri Jun 10, 2005 6:26 pm Post subject:

That is soooo beautiful....I just wanna cry. Shocked

I would love to see one in action! Cool

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Turbodrive · Posted: Tue Jul 12, 2005 6:07 am Post subject:

Ah wonder if one go fit in meh 323 ?
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Razkal · Posted: Sat Jul 23, 2005 6:47 pm Post subject:

^clear silicone does wukk wonders...dat an four roll ah duct date and ah arc welder an yuh BRAAPIN an spittin fire goin home in de 323 Very Happy

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Turbodrive · Posted: Mon Jul 25, 2005 6:11 am Post subject:

Well is pressure for them men later on de highway Laughing

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Razkal · Posted: Mon Dec 05, 2005 5:40 pm Post subject:

^lol! yeah fuh sure! i haev a MP4 file of the 787B revving at a auto expo...not too large..but i dont knwo where to host or upload..any ideas narend? it sounds sickk!!!!
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NarendZORCE · Posted: Mon Dec 05, 2005 5:42 pm Post subject:

Google hosting seems to be pretty quick these days for hosting vids

https://upload.video.google.com/

NarendZORCE · Posted: Tue Dec 19, 2006 1:01 am Post subject:

http://www.zorce.com/zforums/viewtopic.php?t=2627
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