READ MY LAST POST

AFM

But I see there's also hot and cold plug.:confused: Which to use? Sorry, I'm new to nitro.

IF YOUR ENGINE CAME WITH A TURBO HEAD
SIRIO S001720127 OR NOVAROSSI C7TGF

IF YOUR ENGINE CAME WITH STANDARD HEAD
NOVAROSSI C7S OR O'DONNELL O77

AFM

I see the Japanese manual (not really understand it). This engine can use part# s1720025~s1720128 glow plug.
s1720025~s1720028 are s5~8 Hot
s1720125~s1720128 are s5~8 Cold

I fould out they are turbo plug? Isn't this engine use standard plug?

How can I know my head is turbo or non-turbo?

WELL, SEEMS YOU GOT AN ENGINE WITH TURBO HEAD
AND WHAT THEY ARE TELLING YOU IS THE PART NUMBERS FOR ALLTHE RANGE OF PLUGS YOU CAN USE DEPENDING ON WEATHER CONDITIONS, PERCENTAGE OF NITRO, AND HEAD SHIM.

HOT FILAMENT PLUGS ARE FROM HOTTEST TO COLDEST
S1720025
S1720026
S1720027
S1720028
COLD FILAMENT PLUGS ARE FROM HOTTEST TO COLDEST
S1720125
S1720126
S1720127
S1720128

SO, WHAT ANDREA ROSSI RECCOMMENDS FOR THIS ENGINE WITH 20% NITRO FUEL AND 0.20MM HEAD SHIM, IS THE S1720127 COLD FILAMENT TURBO PLUG, OR IT'S NOVAROSSI EQUIVALENT C7TGF.
YOU MIGHT WAN'T TO CHECK WITH YOUR NEAREST LOCAL HOBBY SHOP, OR AT THE TRACK WHERE YOU INTEND TO RUN WITH YOUR FELLOW DRIVERS TO SEE WHERE THEY GET THEIR PLUGS.
I BUY MY STUFF FROM WWW.ATOMICHOBBIES.COM YOU CAN TRY THEM, THEY ARE IN FLORIDA.

AFM

Thanks afm.

NOVAROSSI EQUIVALENT C7TGF is Discontinued.

Trinity S1720127 not yet release.

That is what I found at Tower Hobbies.

Well, I'll check with my lhs.

well i just found out why my motor just stopped aside from running crappy being tough to tune...i had a circlip come out...luckily i didnt glue in my sleeve yet...whew but once again my sirio is sitting on the pit bench useless:confused: oh well ill know better next time thanks for the info guys....

Re: BREAK IN PROCESS
 

With the first tank, is there a temperature we should try to keep the engine running at stay at? 80, 90, 100 degrees celcius?

Also to, I just picked up a sirio 12 trp pro 3 port AAC turbo, the one with the blue head before the EVO 2 came out. I need an SG crankshaft for it and want to know if any crank from the sirio 12 range from the first engine to the new EVO 2 will fit?

Re: Re: BREAK IN PROCESS
 

FOR ALL YOUR BREAK-IN TANKS TRY TO KEEP YOUR TEMP AT 90°C

ALL .12 SG CRANKS FIT, BUT TRY AND GET NEW EVO 2 CRANK IT'S MUCH BETTER THAN OLD STYLE, BIGGER CRANK HOLE AND BETTER TIMING.

AFM

Thanks AFM.

Now where I can get one of these EVO2 SG cranks?

YOU CAN GET IT AT WWW.TEAMTRINITY.COM
PART NUMBER S12081200 S.12 RACING CRANK U$D 55.99

AFM

Re: BREAK IN PROCESS
 

What size prop do you use? I got a wooden 8x6 but from te looks of things the car and air filter will be in the way of the props spinning path.

Re: Re: BREAK IN PROCESS
 

THE SERPENT RUN-IN BENCH (PN: 3400) THAT I USE, COMES WITH A 240/170 PROPELLER.
YES, AIR FILTER DOES GET IN THE WAY, SO I RUN-IN MY ENGINES WITHOUT AIR FILTER IN A CLEAN ENVIROMENT.

AFM

I have sirrios modded by Dennis Richey Mathew ( Smeltz racing), and just purchased a Murnan EVO 2 engine. I have'nt ran the Murnan engine yet,, but... I'm not empressed with his work at all. The smelz and the Richey have unreal bottom, and mid range end. Which is what we're looking for. The polishinging and so called porting work in the Murnan murnan is'nt much. I hope the engines performance is better that the workmanship looks like.
And Baker says he's never ran a faster engine?? Hmm! I guess Barry,never ran a Richey before!! LOL. Anybody running a Murnan Ufmar moddied EVO2?? Just curiuos!!

If you have the three engines why don't you test them at the track and give us your impressions on a hand to hand comparison.
Sometimes looks can be deceiving , but it's performance that counts.
I have two Evo2 engines, one AAC and the other ABC, both modified by me, and both are unbelievable fast, with the AAC being more stable at high temps.
A friend of mine just got a Murnan modified Evo2, will see it at the track soon and let you know....but the only one that can tell which is better of the three you mentioned, is yourself, because you have them all.

AFM

Just curious... Did Dennis mod a Sirio before?:confused: I thought he stopped modding for the general public even before Sirio came out with their engines.

Bob knows what is he talking about, if he sad something, it is better belive in it.:nod:
Edward

:) :)
The sirrio Dennis done for me was modded after he quit doing general public work. He doe'snt like the sirrio engines I don't think. He done 2 for me I think just for a anti Trinity thingy! I think I have the only Sirrio/ Richey mods. And after alittle testing with it against the Murnan power, Dennis still rules for the power range we need. Not cutting on Murnan, he does good work, but just not the power range we need. I'm also using a MT that has some Top Gun 777 work for short tracks that is very impressive to. Hell , the MT will eat the Rody RB 5 port turbos up!!!
Sometimes it pays to be more than the general public.
:nod: :nod:

Just purchased a Sirio S12-TRP PRO...may get to break it in later this weekend, any tips, hints for this engine? May have it modded down the road. Thanks!

Since testing has been done and working with the NTC3 and you know how limited the pipe combo is with the car. All 3 engines has there advantages and disadvantages. All 3 were tested with both Ae pipes, the rd lodics pipe (turbo), and the dynamite long header 1 piece.
The RD pipe seems the best with all applications. We also tried 3 different sets of gearing combos with the engines.
The Murnan is very strong on top end, and not suited for short track use to me, it just goes from alittle bottom and mid to ballistic! I can't tune it out! So I can see what Baker is talking about . I don't see how a short rod engine that fast can survive. I guess you would or should change the rod alot! Looks can be deceiving! The others have better bottom and mid, and are better for short tracks. But... The Smeltz and Richey were modded for short track use, the Murnan was not. So theres the real difference. (induction timing???) But when all is said and done the Mugen Mt's Richey/TopGun777 modds is our choice.
Next season we're going to go to the Nova Rossi engines. Never owed one, we've always used Mugens, RB's and Sirrios. BB

wait till you see the real Richey RD Motor. you won't believe your eyes.:weird:

Cool Dennis I can't wait!! I have tried to email RD to maybe get on a list for one of your signature series engines, but no response yet, I'm sure they are probably all gone, but Dennis maybe you can work one my way bro!!!!!!
So what have you guys come up with a engine suited for both short and long tracks?? If not, any future plans on short versions??? Also bro done any work on a new NTC3 pipe yet, the RD pipe is good but I think you could work some magic in this area too! Thank Bob

evo 2 and NTC3
 

my buddy has a ntc3 and just got a evo2 and the shaft on the evo is to short for the ntc3 stock clutch? it doesnt stick out of the clutch bell enought to secure the screw? what is going on does he need a new clutch bell or bearings? any body help!!!

I have 2 evo 1's and 2 evo 2's both with sg shafts, I had to add the thicher washer to the back of the flywheel to get it all to work. But I use Kfactroy hardened flywheels and 3 shoe clutch setups, they are alottle thicker than
the Ae flywheels and cltch setps. Maybe this will helP???

thanks i will let him know

Sirio 0.15
 

who has tried the sirio 0.15 for 200mm ? the price are very impressive and i am thinking to get one........

I had a Smeltz mod. Rody RB 5 Port and the crankshaft broke after about 4 tanks....Didn't even get a chance to lean her out.lol
But my bud bought a Murnan mod Rossi Pixi Black 5 port and it was very strong bottom and top.I think Murnan does an excellent job.

Mark

My murnan ran great with little bottom and ballistic top for about 6 tanks of fuel, after leaning after breakin, Now it won't run over 2 mins on the track acts as if its leaning out or something. Tried 3 different carbs and 4 different plug ranges, changed fuel line and tanks, even removed high and low speed jets cleaned carb and reinstalled o'rings even changed carb mounting o'ring and backing plate oring, there seems to be no air leaks.. My smeltz richeys and topguns fires right up and will run till the till batts go dead if you keep filling the tank. What's all your buds setting even the mid jet???. If you don't care, I've tried everything I know and I think I can tune pretty good, and have never seen temps over 240 on 30%. The Murnan maybe an Ebay item to me!!!!! I'm sure I guess theres bad engines in everybodys work,, I must have been
lucky before, maybe??
I never seen any 15 engines faster than the 12's for 200 mm. I thought most 15's make alittle less HP than the 12's Most companys spend more money and time on 12's than the 15's. Never pay attention to those HP ratings.

How's the performance of Sirio 21 PR PRO? Anybody who's got experience with it pls make an input.

Thanks!.

Hope these help. I've been following them with success for two years on my Sirio's , and had no problems so far.

AFM

SIRIO ENGINE BULLETINS

Bulletin #1
When tuning your Sirio carb DO NOT adjust the mid-range needle. This is set from the factory on a flow meter to help calibrate the other two needles and should not be touched unless you really have a grasp on carburetor tuning. The mid-range needle can be found underneath the high-speed needle on the end of the carb opposite the low-speed needle.

Bulletin #3
Sirio .12 (General Base Carburetor Settings)
High Speed - 5.5 turns out
Low Speed - 3-1/2 turns out (Generally this should be flush with the end of the slide)
Mid Range - Flush then one turn out. (if you have moved it)

Bulletin #5
When using a Plastic tie wrap to lock the piston to install a flywheel, make sure the tie wrap is thick so it will not be cut. Make sure there is no plastic remaining in the engine as it will cause damage. We do not recommend the use of a piston locking tool as it can damage the piston.

Bulletin #6
We recommend the use of the following plugs
- Sirio .12: (standard plug) Novarossi C7S or C8S
- Sirio .12 (turbo plug) Sirio S001720127 or Nova C7TGF

Bulletin #7
Crank pin on a new stock .12 engine has 4.428mm.
The right play between crank pin and conrod bushing is 0,04 - 0,05 mm. if you're not able to check it, I suggest you change the conrod every 2-3 hours running.
The life of the conrod depends mainly on the fuel you use, as the lubrication and the right carburation keeps your engine running well for long time.

Bulletin #8
This is the correct Break-In procedure for the Sirio S12 Evo2

1.- One (1) 125cc tank in the bench at WOT with very rich setting of HSN, avoiding it to go on 4 stroke.
COOL DOWN
2.- Three (3) tanks on the track at WOT on the main straight with very rich setting of HSN, as if the engine wants to die, and tuning the HSN at the end of third tank to get almost full power.
COOL DOWN AFTER EVERY TANK
3.- For 20% Nitro, use .20 head shim and N° 7 Glow plug.

After that, the engine will give more power every new tank.

Which means that Breaking-In Sirios, should be done with more or less 300 to 500cc of fuel

ANDREA ROSSI
Lavorazioni Meccaniche srl
Via Meucci, 3 Seggiano di Pioltello Mi Italy
Tel +39 0292160235 Fax +39 0292160581
WWW.STAR-MOTOR.COM

sirio .21 settings!
 

Hello, Can anyone tell me what the base needle settings are for the sirio prpro onroad engine? How many turns out from closed on the high and low end? Thanks:confused:

Re: sirio .21 settings!
 

When tuning your Sirio carb DO NOT adjust the mid-range needle. This is set from the factory on a flow meter to help calibrate the other two needles and should not be touched unless you really have a grasp on carburetor tuning. The mid-range needle can be found underneath the high-speed needle on the end of the carb opposite the low-speed needle.

Sirio .21 (General Base Carb Settings)
Low End: 2-1/2
High End: 5-1/2
Midrange: Flush then ½ turn out (if you have moved it)

We recommend the use of the following plugs
- Sirio .21: Sirio S001720127 Turbo plug or Novarossi C7TGF


AFM

thanks!
 

Thank you AFM. I will try that. 5-1/2 turns on the high end seems very different from novarossi carb. Am I correct?

Re: thanks!
 

geebeeez, have you tested or use the engine yet? How's the performance? I m temted to get this engine for my Evolva. And what pipe are you using?

Thanks.

What length of screw should I use? See pic
3x12mm or 3x15mm?

Aku, they are actually 3x16mm, at least that is how long it is in my mugen centax. But you should be okay using the 15mm.

It worked
 

I tried the engine with the carb settings that AFM suggested and they seem to work perfectly. I got the engine used but it seems it was only started once. I did not have a manual so I set the needles to what would be normal for an RB carb or nova. Which is 3.5 turns out on the high end and 5 turns out for the low end. Well it ran like crap with those settings! The sirio carb seems to like settings that are almost the reverse of a nova carb. I have leaned the engine out from the 5 turns on the high end to about 4 turns out to about 200 deg. F. I think it will end up at about 3.75 turns out when done. Iam using an RB 9886 one piece pipe but I think a sirio one would be best. This is also the hand modified version by M. Collari with the orange head. Very fast engine! I was suprised to see that the sleeve in this engine did not look hand modded at all. Only the crank on the turbo slot(not much,just polished) and alot on the inside of the case itself. Everything is engraved with his initials. Thanks alot for the help AFM, it would be even more helpful if sirio would put that kind of information on their website:lol:

Re: It worked
 

GLAD YOU HAVE IT WORKING CORRECTLY, NOW ENJOY THE POWER.
YES IT IS A COMMON MISTAKE WITH NEW SIRIO OWNERS TO SET CARB AS IT WAS A NOVA BASED ENGINE. ALSO BREAK-IN TIME IS SHORTER THAN NOVA ENGINES. YOU WATCH THESE TWO THINGS AND YOU'LL ENJOY YOUR SIRIO.

AFM