R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 10-30-2008, 05:30 AM   #2866
Tech Elite
 
stefan's Avatar
 
Join Date: Aug 2001
Location: Bavaria, Germany
Posts: 3,273
Send a message via AIM to stefan
Default

Quote:
Originally Posted by Francis M. View Post
Has anyone compared the +12ct to the 353 performance wise?
IMHO, they are VERY close. The 353 revs a tad higher than the 12-3, which has a bit more torque.

I run a 12-3 ST with a Max 2602 pipe and I have no problems keeping up with 353's.

I also have another ST which I modified a bit and it screams.
stefan is offline   Reply With Quote
Old 10-30-2008, 08:13 AM   #2867
Tech Elite
 
Francis M.'s Avatar
 
Join Date: Apr 2002
Location: Yorba Linda, CA
Posts: 4,716
Trader Rating: 2 (100%+)
Default

Quote:
Originally Posted by stefan View Post
IMHO, they are VERY close. The 353 revs a tad higher than the 12-3, which has a bit more torque.

I run a 12-3 ST with a Max 2602 pipe and I have no problems keeping up with 353's.

I also have another ST which I modified a bit and it screams.

Thank You Stefan, That info just saved me some $$$$
__________________
TQ-racing Yokomo BD7 Airtronics
Francis M. is offline   Reply With Quote
Old 10-30-2008, 09:37 AM   #2868
Tech Elite
 
stefan's Avatar
 
Join Date: Aug 2001
Location: Bavaria, Germany
Posts: 3,273
Send a message via AIM to stefan
Default

Quote:
Originally Posted by Francis M. View Post
Thank You Stefan, That info just saved me some $$$$
Especially since the conrod of the 353 (#7602) is almost twice the price than the regular rod (#7601) that goes into the 12-3 ST or SCT
stefan is offline   Reply With Quote
Old 10-30-2008, 09:52 AM   #2869
Tech Elite
 
Francis M.'s Avatar
 
Join Date: Apr 2002
Location: Yorba Linda, CA
Posts: 4,716
Trader Rating: 2 (100%+)
Default

Quote:
Originally Posted by stefan View Post
Especially since the conrod of the 353 (#7602) is almost twice the price than the regular rod (#7601) that goes into the 12-3 ST or SCT

The 353 had me curious because of the big price difference vs the 12-3ct...
__________________
TQ-racing Yokomo BD7 Airtronics
Francis M. is offline   Reply With Quote
Old 11-12-2008, 05:54 AM   #2870
Tech Regular
 
Join Date: Nov 2008
Location: spring hill tn
Posts: 323
Trader Rating: 3 (100%+)
Default help

i have a nova .12 motor in my rc10gt that i got off ebay and i'm trying to find out exactly what motor i have. on one side of the crankcase it clearly says "nova" on it and on the other side it says "m12" the m is above the 12. does anyone have an idea on what motor this might be.
mel_russ615 is offline   Reply With Quote
Old 11-12-2008, 01:00 PM   #2871
Tech Elite
 
stefan's Avatar
 
Join Date: Aug 2001
Location: Bavaria, Germany
Posts: 3,273
Send a message via AIM to stefan
Default

Quote:
Originally Posted by mel_russ615 View Post
i have a nova .12 motor in my rc10gt that i got off ebay and i'm trying to find out exactly what motor i have. on one side of the crankcase it clearly says "nova" on it and on the other side it says "m12" the m is above the 12. does anyone have an idea on what motor this might be.
It's a Mugen M12, made by Novarossi. It's actually a re-branded RS12S1
stefan is offline   Reply With Quote
Old 11-12-2008, 05:54 PM   #2872
Tech Lord
 
wingracer's Avatar
 
Join Date: Nov 2007
Posts: 12,653
Trader Rating: 22 (100%+)
Default

There were two Mugen M 12's I believe. The original MT-12 and the later MR-12. I believe both had the M on the crankcase. The main difference was the piston and the length of the rod. The MR-12 will have a cutout on the bottom of the piston skirt for clearance with the crank. The MT had a longer rod and so it did not require the cutout on the piston.
__________________
Sean. Certified speed crazed mowron.
Team Shepherd USA
www.ashfordhobby.com
wingracer is offline   Reply With Quote
Old 11-13-2008, 12:58 AM   #2873
Tech Elite
 
stefan's Avatar
 
Join Date: Aug 2001
Location: Bavaria, Germany
Posts: 3,273
Send a message via AIM to stefan
Default

Quote:
Originally Posted by wingracer View Post
There were two Mugen M 12's I believe. The original MT-12 and the later MR-12. I believe both had the M on the crankcase. The main difference was the piston and the length of the rod. The MR-12 will have a cutout on the bottom of the piston skirt for clearance with the crank. The MT had a longer rod and so it did not require the cutout on the piston.
Yep, you are right. it's been a while with these two engines

The quickest way to keep them apart without opening them is to look between the crankcase and the cooling head.

On the MT 12 the sleeve sits completely on top of the case and on the MR12 it sits in a reset like on all the later engines.
stefan is offline   Reply With Quote
Old 11-15-2008, 02:19 PM   #2874
Tech Rookie
 
wingfloat's Avatar
 
Join Date: Nov 2008
Location: santa clara CA>
Posts: 19
Default 12-3ct

Help!

How much shim do I need for 30% fuel


Thanks in advance
wingfloat is offline   Reply With Quote
Old 11-16-2008, 02:50 AM   #2875
Tech Regular
 
Join Date: Nov 2008
Location: spring hill tn
Posts: 323
Trader Rating: 3 (100%+)
Default

thanks for the info. the guy i bought the truck from on ebay was a bit misinformed. he thought it was a picco motor. i guess he wasn't too far off
mel_russ615 is offline   Reply With Quote
Old 11-25-2008, 04:14 AM   #2876
Tech Regular
 
FF25510's Avatar
 
Join Date: Aug 2005
Location: Hong Kong
Posts: 489
Default

how many shim do i needed with a 353 and 20% fuel. tks
FF25510 is offline   Reply With Quote
Old 11-25-2008, 08:54 AM   #2877
Tech Regular
 
musti72's Avatar
 
Join Date: Sep 2007
Location: Turkey
Posts: 442
Default

hi everyone,

i have just bought a second hand Novarossi Plus 12-3C. how can i know if its good or bad? i mean the life of the engine. i opened it and on the piston there is a shiny golden-brown coating. the underhead is also shiny golden.

thanks in advance
musti72 is offline   Reply With Quote
Old 11-25-2008, 09:41 AM   #2878
Tech Elite
 
dj apolaro's Avatar
 
Join Date: May 2005
Location: Miami, Fl.
Posts: 2,371
Default

Sounds to me like you got a motor that is just broken in. Hopefully that is the case. How does the pinch feel without the plug. Does it seed at TDC nicely. Also with the plug how is the compression. If these 2 things are good than I would run the motor rich for about the first 7 tanks just to make sure of the break in and then go for the race tune. Make sure it is shimmed for the fuel %you are going to use.

hope this helps,

DJ Apolaro
__________________
Capricorn RC, Capricorn Tires, Novarossi World, Spektrum, Horizon Hobby, PROTOform, RCTarget, IGT8.
dj apolaro is offline   Reply With Quote
Old 11-26-2008, 04:43 AM   #2879
Tech Elite
 
Join Date: Aug 2004
Location: Pole Position
Posts: 3,150
Trader Rating: 12 (93%+)
Default

Hi guys i just bought myself a murnan full ceramic 353 08 !!
what sort of powerband does this engine have? i mean is it a more torque motor or a top end motor

i would like to know what sort of gearing with the nt1 would work best with the engine, the track in question has 2 long straights and a few short/medium straighs with a few hairpins

We are on 3/4 to full throttle most of the time. i hope this info can help ?

ive currently been using the nova plus 12 3ct modified with 17/23 59/54 gearing and although it was fast the engine rpm werent too high
__________________
Serpent 748 TQ | GIMAR Engines
Walter RC HObby | www.walterrchobby.com.au
BlueRC | www.bluerc.net
mrgsr is offline   Reply With Quote
Old 11-26-2008, 10:23 AM   #2880
Tech Elite
 
JayL's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2006
Location: Ca
Posts: 2,779
Default

353 has higher rpm power than 12-3
JayL is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Sirio engines thread EVOLUTION Offroad Nitro Engine Forum 2824 04-29-2014 11:58 AM
Axial Engines thread Axial Racing Onroad Nitro Engine Zone 164 10-06-2008 06:48 PM
RB engines thread CraigM Nitro Off-Road 7 01-05-2008 11:57 AM
JP Engines Thread DOMOisCOOL Onroad Nitro Engine Zone 2 02-16-2004 06:00 AM
OS engines thread EVOLUTION Onroad Nitro Engine Zone 44 02-11-2004 07:28 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 11:29 PM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net

SEO by vBSEO 3.5.0