Thanks got it going...

i got mine in the mail today!!:D

[QUOTE]Originally posted by Marcos.J
i got mine in the mail today!!:D [/QUOTE

about time you bought a new ENGINE :lol:

[QUOTE]Originally posted by 20 SMOKE

Quote:

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Originally posted by Marcos.J
i got mine in the mail today!!:D [/QUOTE

about time you bought a new ENGINE :lol:

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tell me about it!!!

So far this engine has been awesome, I ran about a tank of gas through it so far.

It did something really weird around 1/2 tank though. The engine's RPM became unstable and increased from a quiet idle to about 1/4 throttle (estimate) by itself (without carb input).

I shut it off and let the engine cool, it was fine for the remainder of the tank.

Engine temp was 180°

What method did some of you use to break the engine in? The "Goose" makes its maiden voyage this sunday so I wanted to start off right.:nod:

Everyone will tell you something different...

But personally I do this:

Tank 1,2 - Leave the engine at factory settings and start it up. Let it sit there and idle. Once finished, let the engine cool with the piston at BDC (bottom).

Tank 3-10 - Drive the car around going about 1/4 - 1/2 throttle only. You want the engine to run at different rpms.

Tank 11 - start leaning slowly.

The breakin process will last about 1 - 1.5L of fuel.

Is O'donell's 30% ok to use or am I better off with 20%? I'm located in the NYC area if that makes a difference.;)

Weather B,

You do that with your servos reversed? ;) Josh Cyrul's tips are the best I have found. Try his method...it works.

http://www.cefx.net/tips/nitro/break-in/index.php

Good luck!!

john

Nope, throttle servo is not reversed. Only steering. :)

Personally I wouldn't want to start a brand new engine and give it full throttle. That's just me though. But he makes a good point about more fuel = more lubrication and properly seating the parts.

I break in my engines with 20% & then for racing I use 30% & got a lot out of them.

now there's R3 SiR Edition! should have pretty good performance!

SiR R3

I have seen this motor run at a recent test. Great performance.


John

shim
 

I'm run 30% fuel with rb 6 plug is it safe to remove silver or copper. And what was happen if i do remove one of the shim. And what is a good clearance for 30% fuel

Shims
 

Most engines come from the factory shimmed to run at a MAXIMUM nitro content of 30%. If your running I believe an RB6 plug which i believe is a hot plug you run the risk of detonation in warmer weather. If you remove any one of these shims you will probably risk detonation at sea level, especially in warm summer temps. Motorman knows more about this, but I personally would leave it alone.