JL Racing .12

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Old 02-07-2008, 01:03 PM
  #1171  
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Originally Posted by jelayne View Post
How would I know if my after run oil will damage the putty, what should I look for ? I currently have Hobbico After Run Engine Oil but I would not like to use it on the JL if there may be a problem.

What are my options?
You shouldn't use mineral based oils, they'll soften the silicone putty.

Either use caster oil or Marvel Mysterie oil for air tools, which has rust inhibitors and works great.
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Old 02-07-2008, 01:07 PM
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Originally Posted by jscamry View Post
Hello all, I just wanted to say that I am stoked I just got my engine in today!! It only took 2 days, that is some fast shipping. I have read through this whole thread and I ready to break-in my engine!!

p.s. you asked me if I was going to be at the WinterNats, I am not able to make it due to my work schedule and school;maybe next year!!!!!

Oh and do you recommend using a after-run oil in the engine after each run? I have some marvel mystery oil....
Thanks, Team Kamikaze (Sam)

Jason.

Yes, definitely use after run oil after each day of run, I personally like using the Tornado after run oil, it is expensive but well worth it, don't like using castor oil specially if you are going to put the engine away for a while, because it gums up after a long period of time.


Originally Posted by jelayne View Post
How would I know if my after run oil will damage the putty, what should I look for ? I currently have Hobbico After Run Engine Oil but I would not like to use it on the JL if there may be a problem.

What are my options?
Hobbico after run oil will do just fine. (Marvel mystery oil and the Hobbico after run oil are similar)
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Old 02-07-2008, 03:00 PM
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how about this stuff, http://www3.towerhobbies.com/cgi-bin...&I=LXZH53&P=SM
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Old 02-07-2008, 03:09 PM
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Go to Murnanmodifed.com he has a after run oil
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Old 02-07-2008, 03:26 PM
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Originally Posted by LOW ET View Post
Don't know, never tried it, just make sure it does not harm the red silicone.
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Old 02-07-2008, 03:38 PM
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it says it's petroleum based.
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Old 02-07-2008, 03:39 PM
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Originally Posted by badKarma View Post
Team Kamikaze, in another post i think you wrote that the JL manuel says to run the engine with 30% nitro? is that correct or is it 25%? what are the benifits of running at a higher or lower nitro content? is it solely dependant on air temperature and humidity?
Team Kamikaze, in another post i think you wrote that the JL manuel says to run the engine with 30% nitro? is that correct or is it 25%? what are the benifits of running at a higher or lower nitro content? is it solely dependant on air temperature and humidity?
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Old 02-07-2008, 03:46 PM
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Originally Posted by badKarma View Post
Team Kamikaze, in another post i think you wrote that the JL manuel says to run the engine with 30% nitro? is that correct or is it 25%? what are the benifits of running at a higher or lower nitro content? is it solely dependant on air temperature and humidity?
yes, the engines are ready for 30% out of the box. 25-30% it's all about the same, it wont make any difference. in very hot weather the higher the nitro % the harder it is to ignite it.
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Old 02-07-2008, 04:02 PM
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so honestly guys....i need to make a choice before next friday...for a beginning racer, this is my first pure race car...i have no real engine tuning experience...some people are telling me that the JL .12 Evo is no beginning engine, and that its tempermental in tuning and will frustrate beginners...is this true? people are reccomending the O.S .12 TZ because its more reliable in holding a tune, and easier to tune...what do yall think? what do you really reccomend, remember, this is my FIRST attempt at really tuning a race engine...thank you
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Old 02-07-2008, 04:44 PM
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Originally Posted by badKarma View Post
Team Kamikaze, in another post i think you wrote that the JL manuel says to run the engine with 30% nitro? is that correct or is it 25%? what are the benifits of running at a higher or lower nitro content? is it solely dependant on air temperature and humidity?
Running it with 25% will have more runtime than running it with 30%, and of course 30% will put out more power than the 25%.
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Old 02-07-2008, 06:42 PM
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I switched back to 20% instead of 30% as I saw no huge difference in power. The JLR isn't a difficult engine - it's probably guys who just don't know how to tune properly.

TK- Think I have to remove a shim? It says on the manual it is set for 20%-25%.
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Old 02-07-2008, 07:10 PM
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Originally Posted by HarKonnenD View Post
I switched back to 20% instead of 30% as I saw no huge difference in power. The JLR isn't a difficult engine - it's probably guys who just don't know how to tune properly.

TK- Think I have to remove a shim? It says on the manual it is set for 20%-25%.
If you are satisfied with the bottom end power then leave it the way it is, but I suggest you remove one 0.2mm shim if running 20%.
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Old 02-08-2008, 12:44 AM
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Sounds good. I'm going to test it with the #6 plug otherwise maybe try a #5.
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Old 02-09-2008, 01:37 AM
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hey thinking of getting an JL evo3 and wondering if you guys are modding these engines or running them out of the box
cheers steve
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Old 02-09-2008, 03:22 AM
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Originally Posted by corney_01 View Post
hey thinking of getting an JL evo3 and wondering if you guys are modding these engines or running them out of the box
cheers steve
Running them out of the box they are fast enough!!!
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