CISON V8 VS CONLEY CLONE V8 MY THOUGHTS 

The Australian made V8 is the same design as a 1st generation Conley. Note the gap between the intake and the block. They were great back in the day but their time has come and gone. I have owned , rebuilt and sold a lot of the Conley nitro V8 engines over the years so I know them inside and out. They were always said to be 1/4 scale but I would call them 1/5 scale. In a true scale 1/4 scale RC car, like your 57 sitting there, the Conley engines simply look small. Conley had 1/4 scale cars designed around this engine so everything looked in scale. The biggest problem with the nitro V8 is the oil from the nitro fuel is all over the inside of the engine so if it's going to sit after it's been run you need to flush all of that oil out of the inside of the engine. Let it sit for a few months not flushed out and that oil dries out and will lock up the engine with sticky castor oil. Yuch ! The title to one of old videos of a Conley Funny Car is on my channel titled Conley V8. Somewhere down the road I will get one of the China V8's. Love this channel 👍👍

There are so many unskilled people nagging about these engines while they don't even know what they are dealing with. Good point you raised 👍

The Cison OHV V8 is my favorite. I have ordered the flat-head version as well. When you run your Cison V8, keep an eye on the oil flow. If it stops flowing and there's plenty of oil, check the oil pump. In mine, the drive gear in the oil pump came loose from the shaft. The shaft has a "D" end on it but, the gear has a round bore not a "D" bore. High temp Loc-Tite has worked well for mine.

This is such a cool channel! I've never messed with that big of an RC engine always wanted to

Dennis, both engines deserve an ovation! The aussie engine was the second to connelly and the bison is a refined sibling of both predecessors. Just having both on the table makes a guy salavate! Fantastic information Dennis. Hope mine gets here soon. Time to fire up the cnc. Want to make an all aluminum chassis with some speed parts.

There was a thin black O ring that came with my engine that fits over the distributer housing that seals between the block and the distributer.

Dennis build some unique models with this engines👍🏻! We can all run them on the bench but we want them in cars and models

someone needs to mount one of these engines to a paper shredder just the concept of someone in a busy office firing up their v8 powered shredder makes me laugh

To bad the China engine looks like a SB Chevy but with a front Dist like a ford nice job china also seem to run on the bench but just dont make good power when put in a car not good for the $$ IMO I NEVER SAW ONE REALLY RUNNING JUST PUTTING AROUND have you had any luck getting them to make power to move a rc you can use ? i gave up after the 4cly

Great description Dennis! is iT a 4 stroke? What type of petrol is used? (Should it contain oil as tank mix?)

Completely irrelevant to the video, on my fs-l200, on both cylinders the exhaust valve is crack open, when I take off the rocker arms and push the valve down they go back closed. I also noticed with the rocker arms off, the valve bucket on one of the cylinders for the exhaust sits higher then the rest but when I put the rocker arm back on and spin the cam over, so the valve opens then closes, the valve stays cracked open on both cylinders and the bucket sits flush with the intakes. And what I mean by cracked is it’s slightly open and I can blow through the exhaust when the valve is supposed to be closed. Does yours or anyone else’s do this or did something go wrong with the manufacturing and the valve stems are too long? And what can I do to fix it if it’s not supposed to be like this?

its crazy how these v8 models have advanced so much over the last few years it was not long ago your only options were to make it yourself

here's a thought - with all those top end leaks sounds like too much crankcase pressure , try building a vac-u-pan system weld a 1/4" tube throw the side of the collector at a 45 degree angle to the center - with the hole open behind the exhaust flow (this will cause vacuum , run a hose to the valve cover Note: you will have to have , some sort of check valve "on full size we use a back fire valve, used on all early smog systems (this will stop your oil leaks) . . . . . have fun

Where can I find spark plug wires and spare parts for the CISON V8?

I thought that rc car was a real one sitting in the background initially!

You pronounced ozzie wrong, its like a combined oz and zee, oz zee. 😃

Yessir the cison engine is the best ones out and the inline 6 is fire too

Like the details and the sound look like 1,5 scale ish

I was thinking about putting the Cison on a bicycle. Yeah, a V8 motorized bicycle! Do you think the motor is build sturdy enough to turn the rear wheel with a 150lb person on it?

Nice engines! So which one makes more power out of the 2? Those Australia engines are super expensive around 5-7K correct? Did you ever have a Conley engine from back in the day when he made them here in USA? I’ve always wanted one , but lots of coin !

Good vidio original v8 an new

Dennis you got any builds with these motors in like you used to ? I got semto engine in in Tamiya Hilux now,not that fast but reliable and gear change works well 👍🏻

So did you buy these?.

I'm currently waiting on my cison to come in. Been doing alot of homework on the cison and still haven't found any info on the forced lubrication for the rockers

Price on the v 8

They have many differences but they are very similar, very cool👌🏻

Anyone have an idea what the compression ratio is in the Cison? Manufacturer couldn't tell me.

Did it sleep on pillow, Jezz I really want one. And I must say your looking well. Good to see

Thanks for the review. Acording to my calculations the engine is almost 1/5th scale (1/5.2) and not 1/6th as Cison/engineDIY claim.