R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Nitro On-Road

Reply
 
Thread Tools Search this Thread
Old 09-22-2003, 06:34 PM   #1
Tech Addict
 
thefuzzclub's Avatar
 
Join Date: Nov 2002
Posts: 704
Default .12 Sirio AAC 5 port

I chose this engine for my ntc3. I want to know more on the cons please tell me about it.
thefuzzclub is offline   Reply With Quote
Old 09-22-2003, 06:37 PM   #2
Tech Elite
 
EdwardN's Avatar
 
Join Date: May 2003
Location: SoCal
Posts: 2,144
Trader Rating: 1 (100%+)
Default Re: .12 Sirio AAC 5 port

Quote:
Originally posted by thefuzzclub
I chose this engine for my ntc3. I want to know more on the cons please tell me about it.
Very fast and good engine. has some issues, but overall realy not bad. Can be modded to very high level.
__________________
DISCLAIMER: Since 90% of my posts may be BS, and since my posts may be either insanely idiotic, incoherent, and/or not even close to a rational thought, please accord my posts no more than 10% of credibility.
EdwardN is offline   Reply With Quote
Old 09-22-2003, 07:23 PM   #3
B
Tech Master
 
Join Date: May 2003
Location: NorCal
Posts: 1,159
Trader Rating: 7 (100%+)
Default Re: Re: .12 Sirio AAC 5 port

Quote:
Originally posted by Top Gun 777
Very fast and good engine. has some issues, but overall realy not bad. Can be modded to very high level.
so are you saying that Sirio engines have better potential compared to...lets say...Novarossis.

like Honda engines compared to uhhh......Nissan
?
B is offline   Reply With Quote
Old 09-22-2003, 07:30 PM   #4
Tech Master
 
modellor's Avatar
 
Join Date: Aug 2002
Location: Northern Ireland
Posts: 1,447
Default Re: Re: Re: .12 Sirio AAC 5 port

Quote:
Originally posted by B
so are you saying that Sirio engines have better potential compared to...lets say...Novarossis.

like Honda engines compared to uhhh......Nissan
?
modellor is offline   Reply With Quote
Old 09-22-2003, 08:06 PM   #5
Tech Champion
 
nitrodude's Avatar
 
Join Date: Aug 2002
Location: Oxnard, CA
Posts: 5,845
Trader Rating: 5 (100%+)
Default

I got one of the 3 port sirios and it runs great. Only thing I did to it was to put a Novarossi based carburator in it. the stock carbs stinks of shi... well you know

Thans,

Steven Muller
MPP
__________________
Steven Muller
AKA El Pibe RUFAST? HAHA!!!
Ronin Speed Parts
nitrodude is offline   Reply With Quote
Old 09-22-2003, 08:33 PM   #6
Tech Master
 
tl2111's Avatar
 
Join Date: Mar 2002
Location: Love 1/8th
Posts: 1,561
Trader Rating: 21 (100%+)
Send a message via MSN to tl2111
Default

Quote:
Originally posted by nitrodude
I got one of the 3 port sirios and it runs great. Only thing I did to it was to put a Novarossi based carburator in it. the stock carbs stinks of shi... well you know

Thans,

Steven Muller
MPP
you must be having the old crank case which don't have an extra O-ring in it, the one I have with the O-ring in it working fine.
__________________
*Tourer**Futaba***SpeedPassion
*F1**4PX***TORO
*12th**4PX***TORO
*8th**4PX***OS Speed XZ-R
*10th**4PX***OS Speed XZ
tl2111 is offline   Reply With Quote
Old 09-23-2003, 01:53 AM   #7
Tech Adept
 
Join Date: Aug 2003
Location: Silverdale, WA
Posts: 186
Default

my Sirio 5 port with stock carb runs amazing, holds a tune FOREVER and is fast as hell, break in was a little tough, its a tight one
Josh K. is offline   Reply With Quote
Old 09-23-2003, 08:20 AM   #8
Tech Elite
 
EdwardN's Avatar
 
Join Date: May 2003
Location: SoCal
Posts: 2,144
Trader Rating: 1 (100%+)
Default Re: Re: Re: .12 Sirio AAC 5 port

Quote:
Originally posted by B
so are you saying that Sirio engines have better potential compared to...lets say...Novarossis.

like Honda engines compared to uhhh......Nissan
?
Yep. From my point of view it is much more advanced. They have some issue with cranck shaft, but i am sure they will resolve it soon.
__________________
DISCLAIMER: Since 90% of my posts may be BS, and since my posts may be either insanely idiotic, incoherent, and/or not even close to a rational thought, please accord my posts no more than 10% of credibility.
EdwardN is offline   Reply With Quote
Old 09-23-2003, 06:28 PM   #9
Tech Addict
 
thefuzzclub's Avatar
 
Join Date: Nov 2002
Posts: 704
Default Re: Re: Re: Re: .12 Sirio AAC 5 port

Quote:
Originally posted by Top Gun 777
Yep. From my point of view it is much more advanced. They have some issue with cranck shaft, but i am sure they will resolve it soon.
Top Gun,
Can you tell more about the crank shaft issue? My last engine was a Novarossi s5 and the crank shaft got broken for some reason I don't know since I don't abuse the engine and run it a little rich, I guess its just unfortunate. Its my 3rd engine though so I hope it will last in acceptable time frame.
thefuzzclub is offline   Reply With Quote
Old 09-23-2003, 07:10 PM   #10
Tech Elite
 
EdwardN's Avatar
 
Join Date: May 2003
Location: SoCal
Posts: 2,144
Trader Rating: 1 (100%+)
Default Re: Re: Re: Re: Re: .12 Sirio AAC 5 port

Quote:
Originally posted by thefuzzclub
Top Gun,
Can you tell more about the crank shaft issue? My last engine was a Novarossi s5 and the crank shaft got broken for some reason I don't know since I don't abuse the engine and run it a little rich, I guess its just unfortunate. Its my 3rd engine though so I hope it will last in acceptable time frame.
It seems for me the pin hardness is too low and it worning out too fast. I sent one cranck to my friends and hope will have result soon. Anyway, I would sugest to chrome plating on the pin-if you will be able to do it-that cranck will see at list 10 P/S sets before it will give up. From the rest, engine is realy good and very dependeble, specialy if you go to AAC version-this is the close future in RC engines. About broken shaft-it is very difficult to predict-everybdy climing-they have ultrasound quality control and so and so. I saw one cranck broken too-there was old crack (easy to recognize). Some times during the heat treating metall give micro crack and even under ultrasound control difficult to see. In this case it will work for while and eventualy will brake. It is just luck. Some times modifiers are overdoing cranck and can go bad too. Nobody can be insure from the bad luck. Sorry about your old cranck.
__________________
DISCLAIMER: Since 90% of my posts may be BS, and since my posts may be either insanely idiotic, incoherent, and/or not even close to a rational thought, please accord my posts no more than 10% of credibility.
EdwardN is offline   Reply With Quote
Old 09-24-2003, 01:36 AM   #11
Tech Addict
 
thefuzzclub's Avatar
 
Join Date: Nov 2002
Posts: 704
Default Re: Re: Re: Re: Re: Re: .12 Sirio AAC 5 port

Quote:
Originally posted by Top Gun 777
It seems for me the pin hardness is too low and it worning out too fast. I sent one cranck to my friends and hope will have result soon. Anyway, I would sugest to chrome plating on the pin-if you will be able to do it-that cranck will see at list 10 P/S sets before it will give up. From the rest, engine is realy good and very dependeble, specialy if you go to AAC version-this is the close future in RC engines. About broken shaft-it is very difficult to predict-everybdy climing-they have ultrasound quality control and so and so. I saw one cranck broken too-there was old crack (easy to recognize). Some times during the heat treating metall give micro crack and even under ultrasound control difficult to see. In this case it will work for while and eventualy will brake. It is just luck. Some times modifiers are overdoing cranck and can go bad too. Nobody can be insure from the bad luck. Sorry about your old cranck.
Top Gun,
Thanks for taking time to respond, the AAC I ordered will come next week. Will post the outcome on its performance.
thefuzzclub is offline   Reply With Quote
Old 09-24-2003, 09:28 AM   #12
Tech Addict
 
Join Date: Dec 2002
Location: Temple Hills, MD
Posts: 511
Default

What about low end? I've tried all kinds of things to get faster down low with my Sirio .12. A friend of mine commented casually last race "Oh, Sirios don't have low-end, they've got all kinds of top end though".

Do you folks find the un-modded Sirio's to be quick as well as fast?
__________________
green, Green, GREEN!

301 Raceway - We crowned champions!
TedX is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
NIB SIRIO .27 PRO 11 PORT SHAGGS R/C Items: For Sale/Trade 3 12-18-2006 11:51 PM
Sirio EVO STI 3 port rcfoolz R/C Items: For Sale/Trade 0 11-30-2006 02:34 AM
sirio 9 port .23 slowpokeRRR Electric Off-Road 0 11-21-2006 09:55 PM
Sirio .27 RE 9 port HOW SHOULD IT GO? blown sv Australian Racing 0 08-12-2006 04:36 AM
sirio evo 3 5 port DaNNy250RRR Onroad Nitro Engine Zone 5 07-09-2006 09:13 PM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 09:25 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net