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 09-19-2011, 04:31 AM   #16
Tech Elite
 
blis's Avatar
R/C Tech Elite Subscriber
 
Join Date: May 2008
Location: Brisbane
Posts: 3,434
Default

Quote:
Originally Posted by blis View Post
Dang, I bought my younger son a 353 today. So will see how it goes!
I began the run in process of my 353 today... 3 good tanks on the bench.

I opened the top 1 turn, richened the bottom a 1/2 turn and to get it up to a fast idle it took most of the idle screw to keep the revs and temp up.

From this short experience I can assume that the bottom is rich by default, I had good temps at around 5000 rpm and a steady rich fuel mixture flowing out of the pipe... yes my eyes were burning.

I expect my next step on track will require a considerable leaning of the bottom in order to get my idle gap to where it should be. Will keep you informed.

Fuel was Platinum AT Racing.
__________________
RC Cars: E4/G4/TCX/LAB-C02/T4'15/MM Engines
WEB: Beachmums Racing - MYRCM Race Registration
Media: Amain - RCRacingTV - RedRC - LiveRC - blisx264
blis is offline   Reply With Quote
Old 09-19-2011, 01:57 PM   #17
Tech Regular
 
Join Date: Aug 2007
Location: Albuquerque, NM
Posts: 392
Trader Rating: 28 (100%+)
Default

Quote:
Originally Posted by FASRICK View Post
Have you changed the number 5# plug out after break-in ? This will also cause throttle hanging
I did, went to a P3 plug.
__________________
Kyosho STRR
RB6
MP9
SCR-SP
www.SolidTechPerformance.com
lbz34 is offline   Reply With Quote
Old 09-19-2011, 02:11 PM   #18
Tech Lord
 
wingracer's Avatar
 
Join Date: Nov 2007
Posts: 12,861
Trader Rating: 24 (100%+)
Default

Quote:
Originally Posted by lbz34 View Post
I did, went to a P3 plug.
NO NO NO NO NO. Ditch that plug. Nova 6 or 7 or Sirio 6 or 7. NEVER EVER EVER run OS plugs (especially a P3, WAY too hot) in a Nova motor.
__________________
Sean. Certified speed crazed mowron.
Team Shepherd USA
www.ashfordhobby.com
wingracer is offline   Reply With Quote
Old 09-19-2011, 02:53 PM   #19
Tech Adept
 
Join Date: Mar 2007
Posts: 184
Default

Quote:
Originally Posted by wingracer View Post
NO NO NO NO NO. Ditch that plug. Nova 6 or 7 or Sirio 6 or 7. NEVER EVER EVER run OS plugs (especially a P3, WAY too hot) in a Nova motor.
i ran os plugs in my nova before engine still good, years later with os plugs
Ghett0 is offline   Reply With Quote
Old 09-19-2011, 09:30 PM   #20
Tech Lord
 
wingracer's Avatar
 
Join Date: Nov 2007
Posts: 12,861
Trader Rating: 24 (100%+)
Default

Quote:
Originally Posted by Ghett0 View Post
i ran os plugs in my nova before engine still good, years later with os plugs
So have I. Yes it works, but it's far from ideal. Also leak problem are common (though not universal) with OS plugs in Novas.
__________________
Sean. Certified speed crazed mowron.
Team Shepherd USA
www.ashfordhobby.com
wingracer is offline   Reply With Quote
Old 09-19-2011, 11:23 PM   #21
Tech Champion
 
asw7576's Avatar
 
Join Date: Sep 2004
Posts: 5,792
Default

Quote:
Originally Posted by lbz34 View Post
I did, went to a P3 plug.
Don't do it. Novarossi engine should use novarossi plugs. Vice versa with OS engines. The button head and plugs made from novarossi and OS, they have different tapered ( different angle ).

P3 plugs are meant for off road. Thin wire element( hot ) ideal for short burst of high rpm. ex. Jumping.

P7, P8 plugs are meant for on road. Thicker wire ( cold ) ideal for long period of high rm. ex. long straight
__________________
On Road : Xray NT1 , RX8 , T4 || Mugen Seiki MRX4-R , MTX4 , MTX3 prospec || Tamiya M03 , M04 || Top Racing Sabre FD2
Off Road : Xray XT8 || Hobao Hyper 8
Radio : Futaba 3PKS || KO propo EX-10 eurus
asw7576 is offline   Reply With Quote
Old 09-20-2011, 02:35 AM   #22
Tech Regular
 
Join Date: Aug 2007
Location: Albuquerque, NM
Posts: 392
Trader Rating: 28 (100%+)
Default

How about thin air? We typically see 7000+ DA, thinner air=less power. I run Byrons 30%.
__________________
Kyosho STRR
RB6
MP9
SCR-SP
www.SolidTechPerformance.com
lbz34 is offline   Reply With Quote
Old 09-20-2011, 09:16 AM   #23
Tech Adept
 
Join Date: Jul 2011
Location: USA
Posts: 158
Trader Rating: 1 (100%+)
Default

I run the Nova C5TGF plug exclusively in all my nova based .12 engines.

The C5TGF it the plug that comes in the 353 race engine

Last edited by Highside20; 09-20-2011 at 09:20 AM. Reason: Added more info
Highside20 is offline   Reply With Quote
Old 09-20-2011, 10:53 AM   #24
Tech Master
 
Join Date: Apr 2010
Posts: 1,098
Default

Quote:
Originally Posted by lbz34 View Post
How about thin air? We typically see 7000+ DA, thinner air=less power. I run Byrons 30%.
thin air you just need leaner hsn,it's not related to the plug.especially you'r using 30%,should go for cooler plug and add 0.2mm of shim
kyosho malaysia is offline   Reply With Quote
Old 09-20-2011, 11:57 AM   #25
Tech Adept
 
Join Date: Jul 2011
Location: USA
Posts: 158
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by kyosho malaysia View Post
thin air you just need leaner hsn,it's not related to the plug.especially you'r using 30%,should go for cooler plug and add 0.2mm of shim

He is at 5280 feet elevation. I don't see how adding .2 of shim would help. I understand that 30% nitro needs more room, but at that elevation you could add .1 or leave it alone.

After reading more about this it seems like this is a case where the low end is supper rich and the idle is set too high and that is why the idle hangs so badly. The supper rich low end setting gives you a false idle. So when you clear it out the idle hangs because of how high the idle is set then drops down at some point because of the rich low end.

http://www.teampicco.com/index.php?o...=66&Itemid=513

Last edited by Highside20; 09-20-2011 at 11:58 AM. Reason: can't spell
Highside20 is offline   Reply With Quote
Old 09-20-2011, 02:57 PM   #26
Tech Regular
 
Join Date: Aug 2007
Location: Albuquerque, NM
Posts: 392
Trader Rating: 28 (100%+)
Default

I think that might have been the deal, I will get some plugs and see how it goes next track outing, thanks for the help everyone and Mike. Much appreciated.
__________________
Kyosho STRR
RB6
MP9
SCR-SP
www.SolidTechPerformance.com
lbz34 is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Novarossi engines thread EVOLUTION Onroad Nitro Engine Zone 5440 Today 02:12 AM
New Novarossi .21 offroad Plus 4 dsl Offroad Nitro Engine Forum 3759 09-01-2014 06:30 PM
Tuning Problem or Airleak? LiL_JaSoN Onroad Nitro Engine Zone 25 02-12-2010 01:59 AM
Vspec Tuning Problem Krawl Nitro Off-Road 42 05-01-2009 01:54 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 06:20 PM.


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