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 07-14-2012, 09:48 AM   #1
Tech Adept
 
Jason Smith's Avatar
 
Join Date: Apr 2006
Posts: 183
Trader Rating: 1 (100%+)
Default Keep on .12 operating temps?

I just got a keep on..the engines runs fine, but the temps ive been getting seem a bit high. The engine is still a bit fat, blowing tons of smoke, but temping at 260. I'm running .4 head shimming, #6 plug, and 20% nitro.

I am wondering what kind of regular temps you guys are getting 280-290? I am wondering if the design of the head is what's giving me higher readings?

Any info would be great.
Jason Smith is offline   Reply With Quote
Old 07-15-2012, 09:40 AM   #2
Tech Elite
 
ToysRUsKid's Avatar
 
Join Date: Jul 2008
Location: Cinncinati, OH
Posts: 2,619
Trader Rating: 16 (100%+)
Send a message via AIM to ToysRUsKid
Default

Quote:
Originally Posted by Jason Smith View Post
I just got a keep on..the engines runs fine, but the temps ive been getting seem a bit high. The engine is still a bit fat, blowing tons of smoke, but temping at 260. I'm running .4 head shimming, #6 plug, and 20% nitro.

I am wondering what kind of regular temps you guys are getting 280-290? I am wondering if the design of the head is what's giving me higher readings?

Any info would be great.
I have the same issue. It doesn't run right unless it's 280+ and it's still blowing a lot of smoke. I stopped trying to get it below 280 and have been running it where it feels good.
__________________
Dorian Tisdale - Professional RC Driver Wannabe
ToysRUsKid is offline   Reply With Quote
Old 07-15-2012, 11:12 AM   #3
Tech Master
 
TAMAK's Avatar
 
Join Date: Nov 2008
Posts: 1,952
Trader Rating: 28 (100%+)
Default

Quote:
Originally Posted by ToysRUsKid View Post
I have the same issue. It doesn't run right unless it's 280+ and it's still blowing a lot of smoke. I stopped trying to get it below 280 and have been running it where it feels good.
The first time out with my .12 capricorn engine I was running in the 280-290's with blue smoke and a little over 5min run time. I talked to some guys, and they say the same thing, run it as long as you have blue smoke throughout the powerband. Just make sure you check your bearings often.

I did add an extra head shim, temps went down and run time went up slightly.
__________________
TrakPower Speed Equipment / Speed Passion
Serpent Natrix 748 TQ - Nova REX
D413 Reventon 1.1ex 13.5t; AE B6d Laydown Reventon Pro 1.1
DNX408V2-NovaP5, DETC410-Reventon 1.1ex-5.5t MMM
RC10 , RC10GT2- CV-R- SAVOX,
TAMAK is offline   Reply With Quote
Old 07-15-2012, 11:17 AM   #4
Tech Master
 
TeamCarnage's Avatar
 
Join Date: Aug 2004
Location: Highland In. USA
Posts: 1,625
Trader Rating: 23 (100%+)
Default

To both you guys, are your engines completely broke in? I've had several Novas run pretty hot, but blowing a good smoke trail. Then, all of a sudden they fell flat and had to be retuned and ran around 220-230. That includes my current mill that has over 4 gallons on it. Just a thought....
__________________
Nick Altieri
TeamNitro RC Club, New Home track- Ho Chunk Southland Expo, Lynwood IL
Serpent 748 Natrix WC, PICCO EMX "R", Spektrum DX4RPro, Futaba servos
977 EVO2, Matrix tires, Picco power.
Please drive responsibly
TeamCarnage is offline   Reply With Quote
Old 07-15-2012, 12:02 PM   #5
Tech Elite
 
ToysRUsKid's Avatar
 
Join Date: Jul 2008
Location: Cinncinati, OH
Posts: 2,619
Trader Rating: 16 (100%+)
Send a message via AIM to ToysRUsKid
Default

Quote:
Originally Posted by TeamCarnage View Post
To both you guys, are your engines completely broke in? I've had several Novas run pretty hot, but blowing a good smoke trail. Then, all of a sudden they fell flat and had to be retuned and ran around 220-230. That includes my current mill that has over 4 gallons on it. Just a thought....
Define broken in? I don't even know what that means anymore. It had a gallon on the bench and a gallon run through it on the track. If it's not broken it, I'm going to run it hot until it is.
__________________
Dorian Tisdale - Professional RC Driver Wannabe
ToysRUsKid is offline   Reply With Quote
Old 07-15-2012, 08:48 PM   #6
Tech Regular
 
Join Date: Sep 2004
Location: san jose, ca.
Posts: 396
Trader Rating: 2 (100%+)
Default

on the new low profile heads, being used on the novas a temps in the 290 range is not bad , the design allows the temp to be taken lower and closer to the glow plug so it will read higher , as long as there is smoke off the corners when you get back on the gas it should be good
__________________
SERPENT AMERICA / Desoto Racing / kosmic fuel
michael 1 is offline   Reply With Quote
Old 07-20-2012, 02:20 PM   #7
Tech Elite
 
ToysRUsKid's Avatar
 
Join Date: Jul 2008
Location: Cinncinati, OH
Posts: 2,619
Trader Rating: 16 (100%+)
Send a message via AIM to ToysRUsKid
Default

Quote:
Originally Posted by michael 1 View Post
on the new low profile heads, being used on the novas a temps in the 290 range is not bad , the design allows the temp to be taken lower and closer to the glow plug so it will read higher , as long as there is smoke off the corners when you get back on the gas it should be good
I was waiting for others to chime in but thanks for the info and making me comfortable with that temp range.
__________________
Dorian Tisdale - Professional RC Driver Wannabe
ToysRUsKid is offline   Reply With Quote
Old 07-20-2012, 02:33 PM   #8
Tech Fanatic
 
esckalayd's Avatar
 
Join Date: Mar 2011
Location: Orlando, FL
Posts: 920
Trader Rating: 11 (100%+)
Default

Mine runs around 280-290 in the FL summer and doesn't have any problem. If i richen it up and hr it loses its punch and never gets into 2nd (even though the 2 speed is correct). Also, i was able to make 6min30sec run time on a single tank of fuel, no chatter and was not lean at all. Has anyone else seen good run time with a single tank?
__________________
---------------------------------------------------------------------------------
Anthony Schimizzi AKA ~The Rookie~
| Serpent America - DeSoto Racing |
esckalayd is offline   Reply With Quote
Old 07-20-2012, 02:36 PM   #9
Tech Elite
 
ToysRUsKid's Avatar
 
Join Date: Jul 2008
Location: Cinncinati, OH
Posts: 2,619
Trader Rating: 16 (100%+)
Send a message via AIM to ToysRUsKid
Default

Quote:
Originally Posted by esckalayd View Post
Mine runs around 280-290 in the FL summer and doesn't have any problem. If i richen it up and hr it loses its punch and never gets into 2nd (even though the 2 speed is correct). Also, i was able to make 6min30sec run time on a single tank of fuel, no chatter and was not lean at all. Has anyone else seen good run time with a single tank?
Just over six from full to smoke but that was during a time trial run, not during a race.
__________________
Dorian Tisdale - Professional RC Driver Wannabe
ToysRUsKid is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Jammin CRT .5 = 1/12 Truggy Team Kamikaze Nitro Off-Road 2269 07-02-2017 05:32 PM
JL Racing .12 nitrodude Onroad Nitro Engine Zone 2083 05-16-2012 02:21 PM
breakin method. Free idle or not??? dreaux Nitro Off-Road 34 05-04-2009 05:22 PM
Flame outs,,, My MT-12 is driving me nuts!11 compuatic Nitro On-Road 13 05-12-2003 02:24 AM



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 06:04 PM.


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