1948 supercharged vincent black lightning at the Bonneville salt flats.

1948 supercharged vincent black lightning at the Bonneville salt flats.
Roland "Rollie" Free at 150mph on his record breaking run.

161.8kmph(100mph)!!

Monster dog parked on the highway on test run no 1

taking a break

removing the cover

Drag bike??

engine complete!

Khardung la one of the world's highest motorable passes.

Khardung la one of the world's highest motorable passes.

Wednesday, July 8, 2009

Death of the cast iron engine!

Well not really,but off late this does seem to divide most bikers in the Indian Royal enfield community and get them all riled up!

I have just replaced my Cast iron block with a aluminium one.

There are a couple of reasons for doing this.

First of all it happens to be much lighter than the stock block ,about 3.5 kg lighter in fact!

Since the supercharger weighs in at 7.7kg it will negate some of the weight added to the bike.

Secondly the heat dissipation will be better than stock.
This is beneficial especially when supercharging, as for every Psi of boost used there is a increase in heat generated within the engine proportional to the efficiency of the supercharging system.

So in my case I haven't killed the old CI block, I have merely retired it for a bit.

1 comment:

Anonymous said...

Nice to see a true Bullet gearhead in Pune. Do you know if the aluminum jug is available for 350cc?

Alluminium block.

Alluminium block.
Block being bored out to size.

Alluminium block.

Alluminium block.
The final honing process.

the finished right shift gearbox

Right shift conversion

Right shift conversion
the standard 5 speed