need4speed4

Novarossi long-stroke RR12L engine




News of a new Novarossi RR12L long-stroke competition .12 engine is beginning to surface. The new RR12L will be available in legal 3-port trim for sanctioned racing in the US and abroad, and it will also be available in a 5-port turbo configuration for outlaw classes and non-sanctioned racing.

The new RR12L features a bore of 13.7mm and a longer stroke of 14.25mm. The current NS12 engines have a 13.8mm bore and a 14.0mm stroke. Difference may not appear to be much, but relative to the engine size, it's a significant change.

The longer stroke will give the RR12 more bottom end punch, which will be ideal for 200mm touring cars.


Specs

legal 3-port
Bore: 13.7mm
Stroke: 14.25mm
Ports: 3 or 5
Glowplug: Standard plug for 3-port
Crank diameter: 11.5mm
Claimed bhp: 1.52 (3-port)

illegal 5-port
CAPACITY 2.1 c.c.
POWER 1.6 H.P.
RPM 43.500
STROKE 14.25m/m
BORE 13.70m/m
PORTS 5
SHAFT 11.5 mm
HEAD Turbo

(Runs around $160)

need4speed4

By the way, this info is via Steve Pond, Administrator of radiocontrolzone forums...

stefan

Hey Buddy, this is oooold news.

These engines have been available for a couple of month now


http://rc-mushroom.com/product_info....roducts_id=994

Francis M.

iTrader: (2)

so is the bore smaller than an mt12 or ns12 because i wanted
to put that sleeve as a replacement for my mt if possible.

EdwardN

iTrader: (1)

Hey Francis, do you realy have to buy from ....? I get you one from out of the list!

Francis M.

iTrader: (2)

thanks i would appreciate it alot

EdwardN

iTrader: (1)

Give me call please, you know the #.
I will be tomorow at CP after 3 PM ( most likely).

kitracer

hey edward, what am I missing here????

need4speed4 - $160 , so cheap where?

Manticore

i need one of those $160 RR12 motor too !

stefan

I take 4 at that price....

lawndoggie

I think JP is releasing Mod version on this engine...

Grinder

iTrader: (2)

I have a modified RR12L3. It's a good engine. Has anyone noticed that the piston sleeve fit is not as tight as the NS12, once the engine is broken in.

EdwardN

iTrader: (1)

Hey Grinder.
P/S set isn't tight from the beggining or after brack in? I haven't seen one yet.
Do you know what is the tapering there ( on sleeve and piston)?
Thanks.

afm

Hey Grinder

How do you compare it performance wise against a NSR12S3, or to a Sirio Evo2?????

Happy New Year

AFM

Grinder

iTrader: (2)

I used the engine at Full Throttle speedway which has a huge straight. The engine is very strong, but I think I need more time with it before I make a decision which I like better. I ended up using the NS12 because it revs higher than the RR. The engine has a similar powerband to the Sirio EVOII. I will try the engine on a medium size track and give a report soon.