Bansh88

iTrader: (12)

I am new to RC but am already up to 4 cars. One of the cars I have is a Kyosho MP777 with a Novarossi .21. The orginal Rex engine it came with blew up the conrod. I have since replaced it with another Novarossi .21, used.
I am just looking to bash and play. We have a small track on a friends property but by no means am I "racing" right now. Should I be running 30% in this engine? I only ask because it is a higher end engine. I just want reliability and longevity but dont know if a Rossi engine needs the extra octane.
Not trying to stir up the 20 vs 30 debate that I have seen online.

PAGIE #536

iTrader: (3)

25 % will be fine in a nova it's all up to what u want to run 25 or 30%.

Bansh88

iTrader: (12)

So 20% would be a little low for it?

Land-Chaser

iTrader: (3)

25% is good for engine in cold weather.
30% is very nice for hot weather use.

stallen50

iTrader: (30)

you can run 20% just run a hot plug. and you should be fine

Brian Alderman

iTrader: (43)

^+1^

mjd

iTrader: (24)

I run 20% with a v-spec and it rips I really do not see the need to run 30% club racing...

token

High end Nova ------ I would ONLY run 30% no matter what race it is....

Lille-bror

Here in Denmark, we couldn't get our Plus 4 engines to run on 20% nitro. 25% is the ticket. 30% gives you more power but will reduce the longevity.

xxx123

iTrader: (22)

i use 30%, easier to tune and runs cooler on my engines.

kman16jr

iTrader: (56)

I always run Byron's 25 in my werks b6 pro,I never liked 20 and thought 30 was too much so I always stick with 25,great power and longevity of the motor

Bansh88

iTrader: (12)

Looks like I'll cut the rest of my 30% with some 20%, then start buying the 25%.
On another note, would 25% be ok in a Traxxas 3.3 or an old O.S. .12?

xxx123

iTrader: (22)

Traxxas engine runs hot. OS not matter what you use, they will not last the same with Italian engines. Dont forget glow plugs selections has major impact to the engines too.

Mark _australia

iTrader: (2)

Whoa.... O.S engines do not last as long as Italian engines huh

xxx123

iTrader: (22)

yes OS does not last longer than any Italian engines. How many gallons can a P5X go through VS OS .21 V-Spec, any experienced 1/8 nitro person will tell you the truth instantly...