Re: Re: Re: Re: Bearing sizes
 

Are you sure? Thats the photo I took of my EVO1 carb that has terrible air leaks....

Re: Re: Re: Re: Re: Bearing sizes
 

Did the crankcase have an o-ring in it where the carby goes in like the Novarossi NS12 ?
I believe this denotes evo1 to 2.
And yes I pinched your pic.;)

WIll a sirio fit?
 

ok I'm new to the hobby and i dont know squat about what products are compatible with each other. I have a smartech chassis that i bought just to start out with but my engine went due to some bumb advise from my local hobby shop. Now that i know better and i've spent the better part of my life since then researching the hobby on the net, i'm ready to step up. I like the smartech chassis and i feel it will do for now, but i want more speed. I'm not worried about rules. i want to know if a outlaw sirio .15 will fit into this chassis. The engine it came with was a side exhaust. Will it fit, what extra parts do i need and can i use a 2 speed tranny with the set up?

Re: Re: Re: Re: Re: Re: Bearing sizes
 

No the crank does not have any o-rings.. Thats a Evo 1 carb :)

yeah, I guess stuff does happen...but being lied to by a place of business is simply unacceptable in my book. :( Really, I just want to get it over with and get my engine into my car...

...it 'should'(read as: better) be on its way to me tomorrow, then I can get back to preparing for the up coming season.:nod:

I can live with mistakes, with high volume things are bound to happen but being lied to :flaming: :flaming: :flaming:
:)

Re: Re: Re: Re: Re: Re: Bearing sizes
 

No, the Evo2 have bigger cooling head and new design crank, others is the same

For the presentation of the new SIRIO S12TRP EVO2 go to the following web page http://www205.pair.com/kyosho1/kweb/ (it is Kyosho France) under Moteurs, it is a comparison with the old engine, it is in French but following is the translation to English.

"This new engine is in conformity with the 2004 regulations It is an evolution of the Sirio 12 TRP which was the first production Sirio . Having used the old 12TRP, I will benefit from it, to compare the 2 engines and to see thus what evolved. With the first glance, what one notices is the cylinder head which is larger, of blue color and the Sirio initials are engraved above with the name of the engine EVO 2. The carburetor is not any more with 2 adjustment needles as on the last TRP but with 3 adjustment needles. It is new and resembles much the one equipping the .21 Sirio Kanaï. Much more material around recovery screw (mid range needle), it is in this place that Sirio had problems with sealing in the past. Still a common point with the Kanaï, the casing evolves and integrates now an “O” ring to improve the sealing with the carburetor, moreover the mating plane is more significant. That should ensure a perfect sealing. The casing is equipped with new high speed bearings, which is too often neglected in this category of engine. The front bearing is a new more resistant model. As his big brother.21, the casing of the .12 is worked from origin with cuts at the bottom of the boost transfer and at the top of the exhaust transfer. The crankshaft has now more work in observance of the new regulations. The skirt is worked with beveled cuts on the side transfers .The exhaust transfer is modified at the top sides to match the cuts on the casing. The piston is machined and not molded. That ensures much better thermal and mechanical qualities. The rod is of the knife type with a central groove and 2 bronze rings equipped with holes for lubrication. The back plate is equipped with 2 "ears" in order to aid the side transfers. The S12 TRP EVO 2 is delivered from origin with a turbo insert. This insert is very thick and deeply fits in to the cylinder head in order to support heat exchange and to thus ensure an optimum cooling. The engine has 1.5 hp and 41,000 rpm, with a more progressive power band."

Now I guess it all depends on the different markets, I got mine in Spain and the side sticker on the box said S12-TRP “evo 2” Sirio engine 2.1cc 3 ports ABC- SG shaft Slide Carburettor, and It came with the old small black head and turbo button. The rest of the engine is exact to what is said on the French Kyosho article. with the new carb, the new bearings, the case o-ring, etc.etc.

Hope this helps
AFM

WHERE????
 

How and where can I get an Evo 2 ( the same EXACT one here http://www205.pair.com/kyosho1/kweb/) preferrably in the U.S.??
Please help, i've been lookin all around for it in the U.S., but cant find it.... I guess i could order out of the states, but i would much rather order from somewhere in the U.S. Please help!

Thanks,
Tom

Re: WHERE????
 

Tom, I guess you'll just have to be patient. Trinity is just starting distribution of the EVO 2 in the US. If you go to Tower Hobbies web page http://www2.towerhobbies.com/cgi-bin...&I=LXGGL8&P=7, they are announcing it as order pending, and it has a good price to, much cheaper than what I payed for.

AFM

Re: WHERE????
 

Tom, this has just been posted in R/C radio control forum today. Thought it might interest you.

AFM

"Sirio (Trinity) is releasing (in the USA) a new generation of .12 competition engine called the Evo2. The new Evo2 engines have modified porting specs to increase power over the previous generation engines, while remaining easy to tune and longer lasting than many other claiming to be suitable for "racing." These true competition engines are constructed of the finest materials using the latest manufacturing techniques, which isn't something you can easily see by just looking at an engine, but you can definitely see it on the track.
There are three versions of the new Evo2 engines; a ROAR-legal three port, a turbo 5-port with a standard crankshaft, and a turbo 5-port with an SG (pilot) crankshaft.

Sirio .12 Evo2 3-port - ABC construction piston and sleeve, Slide carburetor, Standard plug and threaded crankshaft. Conforms to all the legal limits of ROAR and IFMAR rules. 1.5 bhp; max rpm: 41,000. Item Number: S12TRPAF

Sirio .12 Evo2 5-port, standard crankshaft - ABC construction piston and sleeve, Slide carburetor, Turbo plug and standard threaded crankshaft. 1.6 bhp, max rpm: 43,000. Item Number: S12TUPAF

Sirio .12 Evo2 5-port, SG (pilot) crankshaft - ABC construction piston and sleeve, Slide carburetor, Turbo plug and SG shaft. 1.6 bhp, max rpm: 43,000. Item Number: S12TUP"

P/S
 

I was owndering. I have a 3 port turbo engine. When the sleeve wears out can i buy the 5 port piston and sleeve?

Re: P/S
 

No problem, it's a direct fit, but you might as well consider the conrod too, because it wears out faster than the P/S.
As a matter of fact you can buy it right now from Tower Hobbies, check it out.

AFM

Hey AFM
How long should I wait before replacing conrod, how much wear is still acceptable? (thanks)

good question and also will i see any increase in rpm, Power Band, or just power in general? Is it worth the extra $26 to go with the 5 port?