R/C Tech Forums - NOVAROSSI Engine thread....

I have been running Novarossi motors since the early 2000's in onroad. Sedan and 8th scale. I have always liked them. A couple of guys in my area have been trying to talk me into switching to OS.

bash bros

10-26-2015 03:12 PM

Quote:

Originally Posted by GrandeGixxer (Post 14237155)

I was able to accomplish the 8 minute qualifiers with the Keep-Off 21-4. My runs were around 8:00-8:30 plus the half lap to get to the loop to start and I made it back to the pits each time. So I was getting around 9:00 of runtime. The motor ran good, I was able to get a pretty decent tune on it. Made it through the full 30 minute main, pitting every 7:30 and no flameouts.

What is the procedure for checking bearings, and how long do they usually last? This engine now has probably close to 3 gallons through it. I was sorely disappointed in this engine the first couple of gallons and for 6 or so races, but it impressed me yesterday. Maybe I won't make the switch to OS after all.

The Nova bearings are pretty good. They should last a while if you keep the air filters clean and run quality fuel. Once they start feeling gritty when you turn the crank or they develop a lot of play it's probably time to change them. Of course you could always tear the engine apart and inspect them that way too. The only thing that sucks is the Keep Off uses that special offset bearing and Nova is the only company that makes them. The ceramic is $85 and the steel version is still $45.

danyvw

10-26-2015 03:55 PM

TKO sells the Keep Off special ceramic bearing for just $34.95.

Roelof

10-26-2015 11:59 PM

Quote:

Originally Posted by bash bros (Post 14239122)

The only thing that sucks is the Keep Off uses that special offset bearing and Nova is the only company that makes them. The ceramic is $85 and the steel version is still $45.

You are sure about the prices? I have seen ceramics for 115 dollar.
I have modded a crank case so a non offset bearing will fit. It is very easy to do and will save a lot of money.

bash bros

10-27-2015 02:24 PM

Quote:

Originally Posted by Roelof (Post 14239707)

You are sure about the prices? I have seen ceramics for 115 dollar.
I have modded a crank case so a non offset bearing will fit. It is very easy to do and will save a lot of money.

Yes, novarossidirect.com has the ceramic 16803 for $82 and serpentamerica.com has them for $79 plus whatever shipping is. The steel ball 16802 is about half the price of the ceramic.

I think I've seen a thread on your mod. Definitely looks like a good idea if you have the tools. Probably a lot cheaper in the long run especially if you just use the $20 Avids or TKO's

Maximo

10-27-2015 04:44 PM

Quote:

Originally Posted by Roelof (Post 14239707)

You are sure about the prices? I have seen ceramics for 115 dollar.
I have modded a crank case so a non offset bearing will fit. It is very easy to do and will save a lot of money.

I like your bearing conversion except your going to lose the magical performance gains that bearing provides :nod:

jgonz

10-27-2015 05:38 PM

Im a little confused...so is it the Keep Off or the Mito engines that have the special bearings..?

danyvw

10-27-2015 05:56 PM

Quote:

Originally Posted by jgonz (Post 14240861)

Im a little confused...so is it the Keep Off or the Mito engines that have the special bearings..?

Both have special bearings and both bearings are different. 16006 and 16802

Roelof

10-27-2015 11:44 PM

Quote:

Originally Posted by Maximo (Post 14240793)

I like your bearing conversion except your going to lose the magical performance gains that bearing provides :nod:

Magical it is.....

danyvw

10-28-2015 07:55 AM

Quote:

Originally Posted by Roelof (Post 14241243)

Magical it is.....

Maybe you can get a patent for it. Could call it:

"Patent for bearing elimination of the patented bearing from Novarossi" ;-)

Rampokker

10-29-2015 12:51 AM

Can someone please help me select a new engine for my truggy?
From what I've been able to find out so far, I'm looking at a 7 port.
Either a Vir-tus .21, keep off 21/7, Mito-7Off or Bonito 21/7.
Wow, there's just way too many options! :eek: I would appreciate any recomendations.

bash bros

10-29-2015 02:18 AM

Quote:

Originally Posted by Rampokker (Post 14242878)

Don't forget the Elite 8, well technically that's an 8 port :D

Chad Phillips

10-29-2015 04:15 AM

Quote:

Originally Posted by Rampokker (Post 14242878)

from the list you have. go with the Mito-7Off 41031 manifold and 9901. use 7mm restrictor and C5tgn plug. super easy to tune. runs great. i use Powermaster 30% nitro.

Maximo

10-29-2015 05:49 AM

Quote:

Originally Posted by bash bros (Post 14242906)

Don't forget the Elite 8, well technically that's an 8 port :D

That is the strongest of the bunch power wise..

Jeff Werner

10-29-2015 07:30 AM

How does the Elite 8OFF do in a truggy? Good bottom end?

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