I'm hoping you guys can help me accurately identify this motor that I just got in a trade. The motor is apparently a rear-exhaust, 3-port, standard plug, standard crank, black head with a 3-needle slide carb.

http://www.apexspeed.com/doug/random.../sirio_001.jpg

It will be going into a dirt oval sprint car where torque and top end can be used everywhere. Is there anything you can tell me about this motor and what I should look for? It has been broken in already, but not any car time.

I tried the rest of this thread, but I only had the patience to get to page 6 of 21. Thanks for your help.



doug

Re: Sirio SE12
 

Try Tower Hobbies

afm

It ¡s an old 3 port Sirio S12 TRP AF, prior to the new Evo2 engines. It should be ok for dirt racing. It's not as fast as the new ones, but i guess that for dirt racing to much power would be difficult to put on the ground.

AFM

Actually, getting as much power as possible isn't a bad thing. On clay, our cars will literally wheelstand off the corners. Power isn't a bad thing. Maybe I'll use this motor to get the car rolling and then look to a new Sirio or RB 5-port.


Thanks for the info.


doug

12 conrod
 

Hi,

I believe all .12 conrods are interchangeable between the first .12 black head and the new evo2 engines. Can someone confirm?

How may types of .12 conrods and wrist pins are there?

I just want to get ready so I know what part numbers to ask for when I change the conrod in my newer engine (AAC blue head one before the new evo2).

Re: 12 conrod
 

It's correct, same part number for all .12 engines

S12 051020 wrist pin .12
S12 070020 conrod .12
S12 060010 cir-clips .12 (10)

AFM

Re: Re: 12 conrod
 

AFM to the rescue!
Thanks again mate, I hope Sirio are paying you or give you free engines or something for your knowledge about their engines and helping out everyone here on the forum.

Re: Re: Re: 12 conrod
 

...I wished.....send them an e-mail, maybe they will...jajajajaja

I just like to help my hobby friends...makes me feel good.

BTW as of this year i have STS Racing engines distribution for South America through my company, GPP Model Racing www.gppmodelracing.com

I will be racing with STS and Sirio / Collari depending on race.

AFM

Re: Re: Re: Re: 12 conrod
 

:nod: Respect !! :nod:

We wish too !

Cheers
ZiiZo

hmm

here´s a pic from my then brand new sirio evo 2, 3 port threaded shaft, got it from tower as soon as they were available last year at 160 minus 25 with at that time discount, as you can see, it came with the small head and the sleeve seems aac, weird since the box said abc and it came with both standard and turbo button heads. and the broken conrod.

and two moths later i purchased from tower also, the sirio 5 port evo 2 sg shaft, just came with one button head but with the big cylinder head, broken shaft without explanation, the funny thing is that this engine is as fast as the other 3 port threaded shaft which I used it on my xxx nt, and later I lend it to a friend so he could give it a try on his ntc3(even faster but not as my mtx3 with the 5 port).
costs of reparations, 55 for the shaft and 34 for the conrod, both purchased at trinity shopatron. and now I just checked sirio´s web page it has different number of parts for both my engines, I suppose that corrections have been made but unfortunately trinity (great service,,, not) does not have in stock, damn not even posted. so I suppose that i purchased the same things that I just broke and they call it great service.....!

So you are one more on the list of people who have been "unserviced" by Trinity...unfortunately that is why Sirio doesnt have a good reputation on USA.

AFM

AFM, these are the pipes you recommended for the Werks LC12
Is this based on your peronal experience with the engine? Werks doesn't list the Mielke pipe you mention on their site.

How about the Sirio 2611 pipe used at the Worlds?

Also, I've been searching everywhere for an online source for the Sirio pipes but no such luck. Any good reliable places to get them?

Thanks.

Yes, these are based on my 3 years experience with Sirio and 1 year experience with Collari engines.

The best allround pipe is the Sirio, and what I listed is the part number. The 2611 is the homologation number engraved on the pìpe. You can find them here:

http://www.hobbyredaelli.com/ under Listino (price list) they have all the pipes under Raccordi e marmitte

The Werks pipe is same design as M.Mielke, and it gives you more top end, but sacrificing some low end. Look here:

http://werksracing.com/product.do?sku=WRX6600C

The Novarossi pipe was the one used in the Dyno test done to the Werks LC 12 by RC Nitro Magazine in January issue.

AFM

Engine break In
 

Helloo.....

I just broke in the first few tanks on my 12 tup today. it was just a great feeling.... The flywheel was impossible to to turn had to prime it really good to do so...I used a OS P6 plug which was just great. did the break in as per the site's videos. I ran the car on the ground after the 3rd tank i am not running more than half throttle most of the time except for the usual full speed bursts at times. The power looks good and all. But i feel that the clutch is not engaging properly or might be slow.

Do we need to change the cluctch shoe on the v one rrr for the sirio. ?

any other pointers till i restart the break in again, as i just did one tank on road, coz my main shaft ering came off and i had to come back to get another one.

Hi,

Does sirio make any exhaust systems that will fit a TG10mk.2 or FW-05R chassis? If not, what would be the next best thing?
I know Mielke make one that will suit.

Cheers

guys, is the 12wrc sirio worlds replica engine modified or stock? i saw one at rc-mushroom for $330 w/ a legal pipe. is this a good deal or what? thanks for any info:

I am yet to start re-breaking the engine probably this weekend. when i am running it rich does it matter if i give full throttle or not coz the engine does not reach full RPM anyways.

As mentioned in the catalog where they say do not run at full speed > which i presume means at full rpm not full throttle ?

Whereas once you are at Half turn more than than the optimum you are in any case not going to reach the so called full speed ? isntit ?

or if no we need to just keep it a bit rich than usual and not go full throttle ?

keeping in mind this would be my 4th total tank and 2nd tank on ground first 2 tanks were run in off the ground as per sirio site.

Please enlighten me someone ? :D

I dont think they do

This pipe is great and so is the Kyosho 2piece one

http://www.skylinercracing.com/store/P_35.htm

Re: Engine break In
 

The clutch might be engaging cause the engine is still rich at run in.

Anyone know if the 3 or 5 port Evo 2 can hang with an RB V12 3 port turbo. For the price the RB is quite expensive and if it's not that much faster than the X12 as they say, then I'd want something with more power for my huge track and for bashin in the parking lot. MY LHS has one for $170, but not sure if its the earlier Evo 2 or the latest Evo2. I read somewhere that they also work better with shorter gear ratios? My current gearing on the HPI is about 6.5:1 first and 4.4:1 on second (I'll get the actual numbers later). Think that will work fine? I'm just trying to find an engine good in price, but with a lot of power. Not able to get the RD logics or Palmaris engines.:)

hello from France,

The new Sirio Evo 3 set TQ in top class at the first round of the french championship.
New case, new piston/sleeve
Nice engine, lot of torque.

EVO 3 what the :weird: they only just came out with the WCR

http://www.rcmodel.com.hk/lb5000/usr/13/13_2524.jpg

:D :D

I would definitely get one of those engines! I gone through 2 gallons of hard racing with my Evo 2 and it has been strong all the way through. I think the pipe I am using fits the engine very well. There are no flat spots in the power band. I think the best part is fuel economy. I seem to be getting better run time than the Novarossi motors.

When can I get the EVO 3?

Which Evo 2 have you been running and how much run time?

I don't remember the part number but it's a 3 port SG shaft and turbo button. I think S12 TRP 1?

Kewl. I'm debating on that 5 port or waiting for the LHS to get the 3 port legal one.

Hi,

I've only every used novarossi C7TGF turbo gold plugs on my .12 engines.
Is the Sirio S001720127 turbo plug S7 cold exactly the same as the novarossi C7TGF turbo gold plug or the non gold plug?

Cheers

i am thinking of getting the new mega or the sirio evo 2. has anyone tried both? is either better than the other? also, i heard the carb is no good in the evo and to use a novarossi carb, is this true? thanks in advance.

they are both good engines, I have them both and honestly the mega race legal goes fine against the 5 port evo 2, both carbs are good but with time the o rings get tired, they´re both composite, while the novas are aluminum, some people prefer them, some not. they work fine anyway

Anyone have an idea?

All I know is that it is the plug Sirio suggests for their engines, but i'm not sure if it is the same as the Nova C7TGF or C7TGC.
I think it should be between both, since they don't offer two types of S7. It must be an allround 7 plug.

AFM

Yeah thank AFM, I just want to know if the novarossi gold C7TGF plug is better than the sirio S001720127 S7 plug.
I can readily get the nova C7TGF plugs compared to the sirio plug.

You can't go wrong with the Nova plug....I personally used the C7TGC in all my Sirio and Collari engines (high humidity here), and now keep on using it on my STS D3R with exelent results and reliabilty.

AFM

Anyone think the Sirio Evo 2 5 port will run with an RB Rody 3 port Turbo? I kinda doubt it. I wan't something fast and inexpensive with part support. The LHS does have it I believe for the Sirio, but eh I dunno yet.

sirio evo 2 runs hott
 

i am running a sirio evo 2

my engine runs too hot and i cant figure it out, it is broken in and has good top end, a little slugish in the md range but i cant tell is it because of the temp or not. its running 235-250 degrees in 50 degree weather. when the tepm hits the 90's my motor will be toast if i cant get the carb right, its idles fine and runs good. just too hot. can i get some starting points on all the needles, (my mid range needle is kinda hard to turn).

Guess I won't get the Sirio. My MT12 is doing great now. :)

hey the sirio is a monster motor for the money, it just comes with little directions as far as tuning, there isnt a better motor for the money, just look at the last couple of big races, the motor is a beast im just a novice tuner. OS motors come with step by step info, the sirio's dont. dont take my info as the info to go by just ask around