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-   -   NOVAROSSI Engine thread.... (https://www.rctech.net/forum/offroad-nitro-engine-forum/353301-novarossi-engine-thread.html)

RCTecher12 03-23-2019 07:47 AM

I misspoke. 0.04mm is perfect.

kgombe 03-23-2019 08:36 AM


Originally Posted by SlowLST2 (Post 15418697)
That’s still a lot/too much IMO. .04mm is almost .016”. .001” endplay is as tight as you want, maybe .003-.004” on the high side.


maybe read first before trying to show off your math skills.. 😅

he said .04mm not .4mm

.04mm is .001in

houston 03-23-2019 09:32 AM


Originally Posted by Cardiak (Post 15418357)
I'm replacing my clutch bell but when I go to tighten the retaining screw and washer, the clutch bell binds. I have 4 washers behind the rear clutch be bearing.

https://cimg8.ibsrv.net/gimg/www.rct...5ef2438b94.jpg

need shaft extender washer .....

Cardiak 03-23-2019 10:28 AM

Yep. I was using one but I figured out the problem. I was thinking that I had put 2.4mm worth of washers on the extension. Everything is good now.

RCTecher12 03-23-2019 12:31 PM


Originally Posted by kgombe (Post 15418721)



maybe read first before trying to show off your math skills.. ��

he said .04mm not .4mm

.04mm is .001in

Initially they said .94, but corrected it in a subsequent post... I don’t study the metric system, so I use those stupid and rarely accurate internet converters. Oddly enough, I suspected another conversion I did didn’t make much sense... So only after using a different formula did I find the mistake and the correct conversion result. I’ll edit my post to read correctly.

RCTecher12 03-23-2019 12:37 PM


Originally Posted by houston (Post 15418749)
need shaft extender washer .....

Yup. Comes in a clutch shim kit usually.

HaulinBass 03-25-2019 05:53 PM

anyone ever measure up the bore and stroke on the mantra? not just what nova states but the actual numbers. Unless he was getting some weird numbers its not a square stroke motor or a .21, its 16.46 bore with a 16.8 stroke closer to a .23 than a .21.

Pedro Jesus 03-26-2019 02:00 AM

[QUOTE = HaulinBass; 15420134] alguém já mediu o furo e o derrame no mantra? não apenas o que a nova diz, mas os números reais. A menos que ele estava recebendo alguns números estranhos não é um motor de acidente vascular cerebral quadrado ou um 0,21, sua 16,46 furo com um golpe 16.8 mais perto de uma .23 que um .21. [/ QUOTE]

Its 16.42mm not 16.46mm

HaulinBass 03-26-2019 06:59 AM

is that measured or what novarossi states? because the guy that measured mine gave me those numbers and its a guy whos opinion is fairly well trusted

91junior 03-26-2019 02:27 PM


Originally Posted by HaulinBass (Post 15420134)
anyone ever measure up the bore and stroke on the mantra? not just what nova states but the actual numbers. Unless he was getting some weird numbers its not a square stroke motor or a .21, its 16.46 bore with a 16.8 stroke closer to a .23 than a .21.

My brother,
I have two Novarossi Mantra’s. Ones a factory Nova engine and ones a Hobby shop “deal” I got before I picked up a novarossi power supply.

The Factory mantra measures a tad different to what your stating above but is still close enough to a .23.
However the one from the hobby shop which is a “buy off the shelf version” measures exactly what your stating.

RCTecher12 03-26-2019 02:32 PM

A 16.46mm bore and 16.8mm stroke gives a swept displacement of .218 cubic inches.

Pedro Jesus 03-27-2019 01:14 PM

MANTRA - NOVAROSSI WORLD

RCTecher12 03-27-2019 04:14 PM


Originally Posted by Pedro Jesus (Post 15421210)

According to Nova, it’s a square stroke engine with a 16.42mm bore and stroke giving a swept volume of .212 cubic inches.

savage24x 04-10-2019 09:56 AM

What .21 engine are people recommending for truggy nowadays that the rex paloma limited isn't being sold?

sebtarta 04-10-2019 12:35 PM


Originally Posted by savage24x (Post 15429424)
What .21 engine are people recommending for truggy nowadays that the rex paloma limited isn't being sold?

A Roma .25 is what I have seen many people run here.

I have also see some run regular .21, Elite 5 and Rolling.


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