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All Forums >> RC Cars, Buggies, Trucks, Tanks and more >> RC Nitro Stadium Trucks >> Breaking in Motor?
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Breaking in Motor? - 12/17/2003 12:31:27 AM   
nsgtr


 

Posts: 12
Joined: 12/15/2003
From: Tryon, NC, USA
Status: offline 		Whats the best way to breakin my buggy motor?

< Message edited by nsgtr -- 12/16/2003 7:31:56 PM >
       Post #: 1

RE: Breaking in Motor? - 12/17/2003 2:23:41 AM   
Baroncowboy



Posts: 271
Joined: 3/31/2003
From: Staunton, VA, USA
Status: offline 		The best way to break in your motor is to make sure that the high speed needle valve "HSN" is set to factory recomendations,and then open it a half turn...Then make sure that your throttle is trimed high because you engine will want to fight running at a low idle..
Run a tank trough it while leaving the buggy still,then run one to two more tanks through it just running it in a small oval reving it no more than about half trottle during this phase... After that you can run the hell outa it and feel good doing it...
By the way be sure to lean it out a bit for max performance but remeber that its still new and needs to be run a little ritch....The best way to tell how well its tuned is to get a temp gun and keep it around no more than 210 deg. f....
Good luck and have fun...

PS. By the way,be sure to bump the fly wheel to stop it so it wont lean it out like pinching the fuel line will...And that can eventually hurt the engine....And you'll have the bonus of not having to prime your engine every time......The only time when you should pinch the line to stop it is if you plan on storing it for a while,and that'll keep the fuel from spoiling in the engine and gumming up your day.....you can also put a few drops of after run oil in it when your not going to run it for a while so it keeps it in tip top shape...

(in reply to nsgtr)
       Post #: 2

RE: Breaking in Motor? - 12/17/2003 4:51:47 AM   
k-carboy


 

Posts: 277
Joined: 7/31/2003
From: New Bloomfield, MO, USA
Status: offline 		or check this out. its how i started breaking my motors in mid summer and others who use this method swear by it. this is the 4rth time ive posted this link on rcu. ive had people argue that this break in proceedure is bad until they tried it. if its good enough for ron paris its good enough for me!

http://www.parisracing.com/engine_tuning_with_coversheet.htm

this isnt just a tuning page, you will also find lots of other good info there.

(in reply to Baroncowboy)
       Post #: 3

RE: Breaking in Motor? - 12/17/2003 5:43:04 AM   
bruzer



Posts: 103
Joined: 12/3/2003
From: Prescott, AZ, USA
Status: offline 		IF I were you I wouldn't bump the flywheel to stop the engine. I know that this causes a lot of discussion but here is my point of viewon the subject. When you bump the flywheel you run the chance of damageing the conn rod. I'm sure that there are thousands of ppl out there who use this bump method religiously and have not had a problem with it (that they know of). I have used the method of pinching the fuel line for years on my planes and have NEVER had to do a rebuild on my engine and they were used before me so I estimate that they have about upwards of 10 gallons through them. I know that car engines and plane engines are different but they do not differ in this caracteristic. Starving the engine of fuel does make it lean but not long enough to do any damage. And this also burns any nitro that is in the crankcase that can eventually eat its way through your crankcase. not many ppl realize that nitro oxidizes with aluminum. I get a lot of my knowledge from my aerospace engineering courses and my personal time flying airplanes. I am just getting into cars/trucks

anyway just my humble opinion and $.02

(in reply to k-carboy)
       Post #: 4

RE: Breaking in Motor? - 12/17/2003 9:18:59 PM   
Baroncowboy



Posts: 271
Joined: 3/31/2003
From: Staunton, VA, USA
Status: offline 		Hey Bruzer,...thanks for the info on the nitro oxidizes with aluminium deal... I did not know that!
Ive been flying planes for about 11 years now,and come to think of it I havent had any problems with the leaning it out to kill the engine either.... So thanks again... Seeya JOSH

(in reply to bruzer)
       Post #: 5

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