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-   -   Novarossi engines thread (https://www.rctech.net/forum/onroad-nitro-engine-zone/29453-novarossi-engines-thread.html)

kyosho malaysia 03-04-2016 02:40 AM


Originally Posted by snuvet75 (Post 14417558)
If I were to use Keep on .21 crankcase with Bonito .21 sleeve, would it work? the cases of both must be different but I just wanted to ask. Bonito is 7 ports and keep on 9ports. Everything else is Keep on's.

On road and off road crankshaft timing should be different

snuvet75 03-04-2016 12:53 PM


Originally Posted by kyosho malaysia (Post 14421990)
On road and off road crankshaft timing should be different

So you're saying it wouldn't work? The only difference from Keep on is the sleeve. Could you elaborate how the change of sleeve relates to the crankshaft timing when the shaft and case are from Keep On? Thanks.

Roelof 03-04-2016 01:02 PM

Today's high end offroad engine have a crankshaft timing that does not differ much from onroad.

An offroad P/S set in an onroad will work but due a low port timing you will not have the performance of an onroad.

snuvet75 03-04-2016 01:20 PM


Originally Posted by Roelof (Post 14425395)
Today's high end offroad engine have a crankshaft timing that does not differ much from onroad.

An offroad P/S set in an onroad will work but due a low port timing you will not have the performance of an onroad.

Thanks Roelof. Was it Harry? Anyway, again, can you explain how changing sleeve only will affect the crankshaft timing??

Roelof 03-04-2016 01:54 PM

Changing a sleeve will not change the cranktiming. A large (onroad) cranktiming can deliver high performance but the lower port timings on the offroad sleeve will dim the power and top rpm. Nevertheless with an onroad exhaust trying differen manifolds will give an engine performance in between an onroad and offroad.

nick m 03-05-2016 03:57 AM

Roelof wich fuel are you trusting these days with the novas ? i was having good luck with tornado but now they are closing :confused:

Roelof 03-05-2016 04:52 AM

Castor based fuels. The best is Runnertime (now also sold as Tesla fuel) but stuff like MLC and Xceed are also OK

nick m 03-05-2016 06:38 AM


Originally Posted by Roelof (Post 14431115)
Castor based fuels. The best is Runnertime (now also sold as Tesla fuel) but stuff like MLC and Xceed are also OK

thank you

vivo quevas 03-07-2016 07:48 AM

How much castor per gallon do you add?

dan_vector 03-10-2016 11:06 AM


Originally Posted by vivo quevas (Post 14434187)
How much castor per gallon do you add?

If you run fuel like runner time or tesla then you don't 'add' any caster.

If you are running a fuel like Rapicon for example which is 9% synthetic you can add caster up to 11% total oil content. I've done that before when I couldn't get hold of Runner Time while racing in Asia.

Roelof 03-10-2016 12:34 PM

It is wise to test it first in a drinking glass to see if the castor will mix with the fuel. Most of the time it will but you will never know for sure. It would be a shame if you ruin a fresh can of fuel.

vivo quevas 03-11-2016 07:53 AM


Originally Posted by Roelof (Post 14439842)
It is wise to test it first in a drinking glass to see if the castor will mix with the fuel. Most of the time it will but you will never know for sure. It would be a shame if you ruin a fresh can of fuel.

Thanks for the tip but how much castor do you add to gallon of fuel if it will mix together?

dan_vector 03-12-2016 06:20 AM


Originally Posted by vivo quevas (Post 14442610)
Thanks for the tip but how much castor do you add to gallon of fuel if it will mix together?

You've got to do a bit of maths and work it out depending what the existing blend is and if the can is 1 us gallon or 5 litres etc. In the past I've run Rapicon as I couldn't get anything else which is 9% synthetic oil. I added 80mls of Novarossi castor to it.

mrgsr 03-23-2016 05:31 AM

Has anyone run the novarossi Mito 7 .21 on road?
What are your thoughts?

JamesHealey 04-13-2016 12:50 AM

The 7C or the 7?


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