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Kinesthesia
2001.12.02, 05:38 PM
Last night I had a dream that Kyosho came out with a Nitro powered Mini-z with a tiny little engine about the size of my thumb. How small do nitro engines get ?

I think some bada$$ tinkerer like Drac should do it if Kyosho doesn't... or maybe it was just a dream...

Draconious
2001.12.02, 05:48 PM
There ARE very small engines... commonly used in airplanes... but not sure if small enough to fit the engine under the mini-Z body... suspension, fuel tank, removal of the esc.. Could probly conver it to a 3 cell car, for the rx and servo, and use one cell space for a mini fuel tank ;).

They do have a CO2 cartrige that could power one though ;). Bout the size of a AAA battery cell.

You could always put one of these in it!!!! Holey CRAP its small ;)

http://www.berkeley.edu/news/media/releases/2001/04/02_engin.html

Russ
2001.12.02, 07:06 PM
I think the smallest engine with a throttle is a .061, which is a little too big to fit under the body, but if it sticks out a little, who cares, it would haul A$$ :) They make a .01 size engine, but it's just at a constant rpm, so you couldn't speed it up or idle it.

Russ

Hardtrukr
2001.12.02, 07:15 PM
hey, what about a CO2 pressurized engine? just another idea

mini-z
2001.12.02, 09:05 PM
Wow, get that Berkeley rotary engine and an RX-7 body...!

F=ma
2001.12.02, 09:34 PM
Originally posted by mini-z
Wow, get that Berkeley rotary engine and an RX-7 body...!

That would be all too beautiful...

wrcracer
2001.12.02, 09:51 PM
speakin of which, drac, how would you change the number of cells the car ran off?

Draconious
2001.12.03, 12:46 AM
Just rewire it so it only uses 3 of the battery slots... would require shuffleing of the metal/spring tabs. Basicly you would remove one of the spring and plate tabs, and replace it with the tab in the slot above/below it, then relocate the black cross wire... basicly any way you can get 3 to work in series ;).

wrcracer
2001.12.04, 12:19 PM
the only .061 engine i could find was an airplane engine, which poses 2 problems. first, (i dont know much about nitro engines) how would you start it? airplane engines are started by spinning the prop. 2nd, wouldnt the engine need a clutch? does someone make a clutch small enuff for that engine?

Russ
2001.12.04, 01:07 PM
I have no clue, I just remember the smallest throttle'd engine being a .061 engine. Problem #3 would be keeping it cool because airplane engines stay cool by the flowing air from the prop.

Russ

wrcracer
2001.12.04, 04:16 PM
that might be solved by a small computer fan, like the ones in laptops. i had a big one that ran pretty well off a 9V batt. if only...:rolleyes:

Ken Mifune
2001.12.06, 01:05 PM
Heh heh, Nitro-Z...

wrcracer
2001.12.06, 01:33 PM
that is a photoshop jobbie, rite? good job;)

Ken Mifune
2001.12.06, 02:14 PM
Just Havin' Fun

There's a "Double-Z" & "Dragster-Z" around here somewhere.

ScottMcLeod
2002.11.15, 10:23 AM
Originally posted by Russ
I have no clue, I just remember the smallest throttle'd engine being a .061 engine. Problem #3 would be keeping it cool because airplane engines stay cool by the flowing air from the prop.

Russ

The smallest engine is the .061 Norvel(sp?) engine. It's almost too big to fit in a Micro RS4, so it's not even close to small enough to fit in the Mini-Z

... Realistically, a Z isn't a very good platform anyways to use a nitro engine on. Too much plastic, not enough room, etc...

... about the CO2, it's again a size problem. A 12g CO2 cartridge will fit in a holder that's about 4-5 inches long... almost the length of a Mini-Z. and then you have to deal with the fittings that add length, and etc etc etc...

ScottMcLeod
2002.11.15, 10:24 AM
Note, this forum should also be moved to the Mini-Z Science.

It's not a new product, it's a new idea.

mini-z
2002.11.15, 10:15 PM
Scott, the thread is over a year old, it's not going anywhere!

Originally posted by mini-z
Wow, get that Berkeley rotary engine and an RX-7 body...!

What's weird, is that someone posted that micro rotary link on TinyRC.com the other day, and I said almost the exact same thing, word for word, a year later, with no recollection of this thread! :eek:

ScottMcLeod
2002.11.15, 10:23 PM
Is it???

Which buffooon decided to dig up a year-old thread?!

Nerobro
2002.11.18, 01:51 AM
Actually the smallest comercially available engine is a .010 .020's are available more commonly. either would be small enough to put in a miniz... the .049 would be far to large.

GiantScale
2002.11.20, 05:11 PM
http://www.micro-flite.com/

here ya go

Russ
2002.11.20, 05:25 PM
OMG!!! The last I had heard the .010 engines were not throttle controlled, only on & off!! Check that crapm out, there's a .010 throttle'd engine out!!!

Kinesthesia
2002.11.20, 05:59 PM
um... that's exactly the engine I dreamt of... spooky.

Nerobro
2002.11.20, 06:05 PM
I will also mention that there are throttle sleves for the .020's as well. In fact the .020 in my collection HAS one on it ;-)

baseline
2002.11.20, 07:36 PM
okay so who has enough knowledge to go and try to hook one of this babies up??

GiantScale
2002.11.20, 07:59 PM
"If" I could make a clutch on my lathe, I might be able to get a pinion on it.

I wrote this company a year ago for a airplane project I had in mind & was told the engine was not ready for shipment yet:rolleyes:

The clutch would be the hard part, and keeping nitro out of the radio & off the wheels might be tricky with no directed exhaust. Messy!

I have one on order, but who knows when I will get it!:(

A mini-x or ABC DTM may put the power down better with 4 w/d

Mike

mini-z
2002.11.20, 08:58 PM
Originally posted by GiantScale
A mini-x or ABC DTM may put the power down better with 4 w/d

:eek: Cool!

Nerobro
2002.11.20, 09:11 PM
the mini-z or a DTM would be the better choices. Easy motor mounts really... the clutch ins't so big of a deal. cox made a .049 size clutch......

baseline
2002.11.20, 10:18 PM
oh, would the exhaust from this change the mini-z into an outdoors only toy?

Nerobro
2002.11.20, 10:19 PM
Very much so. though if you go with a .061 from norvel.... you'll have a working exhaust as well. but a .061 is on the order of what you'd put in a 1/12 scale car.... not a 1/24