Description
Honda RC 116R 50cc 
Reproduction of The Works Machine of 1966
Engineer: Ian Plumridge - England
Here we have my Honda RC116R 50cc Reproduction of the Works Machine of 1966 , which won The 50cc World Championship and the Isle of Man 50cc Tourist Trophy Race.
Description
It has the Honda Dream 50 Twin Port Engine with all the HRC and Takegawa Parts including: Lightened Crankshaft, Special Cams, Gas Flowed Cylinder Head, Six Speed CR Gearbox, Oil Cooler, Nippon Denso Digital Ignition and Rev Counter, Alloy Fairing And Fuel Tank.
Description
Description
It has only been demonstrated in various Special Meetings ie. Isle of Man TT TTRA Lap Of Honour 2000, Sachsenring Eighty Years Classic Meeting, Mini Centennial - Assen 2010, Plus some demos in Holland.
The difference between the RC115 and the RC116 is a new bore and stroke, now being 35.5 x 25.14 mm. Power output is 16 bhp at 21,500 rpm.
 
This means 320 bhp per litre and a Pme of nearly 16 kg/cm2 ! As regards bhp per litre, this is a figure that has never been surpassed by any naturally aspirated four stroke engine, and even today's formula 1 cars with their special fuel brews cannot hold a candle to it.
 
I know this is not a totally fair comparison, but it gives an idea of the level of four stroke technology nearly 40 years ago.
 
This engine is the most advanced of all the Honda engines. Red line at 22,500 rpm. Carburettors have flat slides. The gearbox contains a nine speed cluster.
 
Dry weight of the bike is 58 kg. The piston pin has a diameter of 9 mm and weighs 6 gm. The inlet valve head is 13 mm, the exhaust valve head is 11.5 mm, and the stems are 3.5 mm diameter. Weight of the exhaust valve: 6 gm.
Honda's Race History 1966
Content Joep Kortekaas 2002
http://www.vf750fd.com/Joep_Kortekaas/1966.html
The information below concerns the Factory RC116 and is used for interest only
Description
Video Player
The Factory Honda RC116
A video of Ian's Honda RC116R
Return to Ian Plumridge Page
Description
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