thefuzzclub

I WILL BUY TOMORROW FOR MY NTC3, STILL CONFUSED BETWEEN THE TWO NEED YOUR INPUTS PLEASE.

jason102276

it depends i think on what you want

i think the sirio is probably a little faster

but the nova may last longer

i like sirio cause they are cheaper

thefuzzclub

With the price I will spend I think I will go for the Novarossi. though you mention that Sirio is faster, thanks for the advice bro.

kitracer

don't dont', don't buy the sirio...
always have carb problem one or another so you need to seal it and hassle

Novarossi have a new engine out next month. may be even better.

always buy the nova ( or nove based) if price is affordable.

thefuzzclub

I JUST BOUGHT THE NOVAROSSI, JUST CAME BACK FROM MY LHS. THANKS FOR MAKING FEEL RIGHT IN MY DECISION.

Ron C.

iTrader: (2)

kitracer,

Just curious...

What Carb Problems have you encountered
in yours? I would like to compare it to my
Sirio Carb Problems..

Thanks..

Corse-R

If you're talking about the 'Hexagon'. Their launch on Europe is Expected at Ends of May or June... This answer comes from my local Novarossi importer.

Firstly the new engine needs to prove its performance differences between the S3 and the new, so probably many people would be a little hesitant to switch to a new engine more (me are one of them) until we see some noticeable differences between the 'old' and new model.

See the MT12 example. Is a venerable engine that today still rocks.

jason102276

corse-r have you tried a sirio engine yet?

i feel it would be worth your money to try it out if you havent

i have come to know you really like RB engines

your mods look good how long has it taken you to learn about them?

kitracer

The first batch I got in Nov last year, in hong kong, most had the leak problem on the mid range adjustment, SIRIO willing to replace them but HEY< SIRIO, ITS BEEN 4 months and I am still waiting waiting......

THe second batch , the AAC version ( all the turbo version that I am talking about) , they put a permanent screw on it so not adjustable, but then these time the idle screws AND at the area b/w the card and the engine leaks......

Most people can seal it with some silicon but I am using a Novarossi carb with the engine for Practice only.

good luck

kitracer

I spoke to the distrubute in HK and he said the same thing, May June release.....

I would switch right away , but only on Novarossi engine. here, we run outlaw so no problem changing from MT12 3 ports to S5.
if it is no good, I'll keep it as practice like the SIRIO

Corse-R

Yep, got one of the first Sirios that arrive to my country and were 'too new'. Engine in general was OK, but had some little flaws that seemed to correct the factory (leaky carb by the venturi adjustment - seems corrected).

For the rest is a cheap engine that costs very little to be awaken-up and turns on a real good killer. On their stock incarnation is a little 'weak' on acceleration and low-end, but can be easily corrected.

Got RB engines since many time and some time last year used other engines (Rex, JP mainly), but returned ro RB ones b/c seems me more reliable and cheaper compared side by side with similar engines.

Started to slightly tuning my own engines some time ago, but got into seriously modding them some months ago. By the moment, only made engines for me and for some buddies that requested me and did only charging the money that costed me swapping some parts (are buddies and don't want to take as business ).

Ron C.

iTrader: (2)

Corse-R

I have the .21 Sirio and it is pretty good as it is (from
the box). But I was wondering if you have seen some
of these modified and was there a noticeable difference
in power.?

Corse-R

Have here a Sirio .21 AAC for my MRX3 didn't modded it. After some time getting, got a quite good offer for a pair of Nova R1's and use it from time to time. Didn't modified because at that time wasn't so confident wrenching on them and love for using on low traction tracks.

Ron C.

iTrader: (2)

How do you think this motor (.21) would
be, if modded?

And how do you think the power band is compared
to the R1?

Corse-R

Probably I'll try to gain some low and mid rpms to improve their launch.

Engines are quite different comparing Sirio .21 vs. Nova R1. Love the launch of Nova and their power. Sirio IMHO is less shining, but equally effective.

Never tried to compare side to side. Next weekend I have a club race with 1/8 cars, so I'll try to compare them if you're interested.