And you think YOU have a grunty bike! :-p

**Boob Johnson** · 11th March 2007, 09:02

A guest at the lodge I run gave me this picture the other day, thought I would share it with you all.

Im sure you will enjoy, he he

**Smokin** · 11th March 2007, 09:08

Far Canal

**ninjac** · 11th March 2007, 09:33

Ummm an air cooled 8 cylinder radial. Dang those rear cylinders would get hot.
Why? Because he can, nuf said.

**TonyB** · 11th March 2007, 09:34

What an absolute beast! That thing probably churns out well over 1000hp..... bet it doesn't get far on a tank of gas though!

What plane is the engine out of?

**Hans** · 11th March 2007, 09:57

Naaah, more like 300hp absolute max. I'm sure some of the more qualified fly-boys can tell you more. Aero engines usually give an output in the region of 30hp/Liter or so. And yes, the rear cylinders will get a bit hot. Pity that's the region where yer nuts are.

**Drew** · 11th March 2007, 10:14

That's bloody cool! I want one, wonder if it'll pass omissions and noise testing.

**beyond** · 11th March 2007, 10:22

Wouldn't want to get your jeans caught in that belt.

**terbang** · 11th March 2007, 10:42

The engine is a Rotec. Built in Aussie it is about 110 HP. Looks nice though..

**beyond** · 11th March 2007, 10:46

Originally Posted by terbang

The engine is a Rotec. Built in Aussie it is about 110 HP. Looks nice though..

All those bangers for a measly 110hp?

**Hans** · 11th March 2007, 10:48

Originally Posted by beyond

All those bangers for a measly 110hp?

Yup, but it won't break. Unless, of course, you happen to have it installed so only some of the cylinders get proper airflow over them.

**terbang** · 11th March 2007, 10:51

It'll produce it all at about 1800 RPM too.

**beyond** · 11th March 2007, 10:55

Originally Posted by terbang

It'll produce it all at about 1800 RPM too.

That would be cool

Loads of torque then. Love torque.

Mine turns out 90% of it's maximum torque of 126nm at 2500 rpm so I kinda like that. Nice for exiting corners.

**xwhatsit** · 11th March 2007, 11:18

Am I confused or just outdated? I thought radial engines... well... rotated, cylinders and all. So if that's the case with modern radial engines as well, there are no rear cylinders to get hot.

Classic radial engines are a very bizarre type of engine. Elliptical crankshaft/cam thingie in the middle, so each cylinder only fires when it's at the top of the engine's rotation. Fuel mixture injected through the top of the piston. Total loss oil system -- because of the centrifugal force, there was no technology back in the early 20th century to get the oil back to the middle, so they just let it get thrown off. Apparently the scarves the pilots wore were for wiping the sludgy oil shit off their goggles, not for good looks.

So if that's the type of radial engine I'm thinking of, you won't just be worrying about the belt drive, there's also a shit load of metal rotating a few centimetres away.

**Hans** · 11th March 2007, 12:35

You're thinking rotary engines...
The aero kind of course.

**kneescraper** · 11th March 2007, 12:36

I think Xerxesdaphat is correct, I remember being a lil boy and seeing some strange old plane with an engine that spun at a local air show...at the time I thought of it as the coolest thing (this was before I had seen boobies).

How do you mean the oil gets thrown off though? when it leaves the exhaust system ?

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