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Old 03-07-2010, 12:11 PM   #1
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Default Just to make sure I got this right

Ok. So my OFNA 9.5 has a force 25 engine. If I am getting residue/excess fuel coming out of the exhaust then I am running to rich. However, the temp of the engine feels pretty hot. (water test only) So am I running to rich or to lean? I have read 15 different tuning articles and just want to get this right. Please give suggestions.

PS. Thanks for the help on getting the buggy to stop stalling out. It was the glow plug.
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Old 03-07-2010, 12:21 PM   #2
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it feels hot... like edd bridges(ebmods) tells me would you stick you hand in boiling water??? water boils at 212 deg f. so is it that hot cause thats starting to get at tuning range. so most likely your rich not lean
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Old 03-07-2010, 12:36 PM   #3
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http://www.amainhobbies.com/product_...perature-Gauge

This helps!
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Old 03-07-2010, 12:55 PM   #4
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getting a temp gun would be a good option since your using the spit method really isn't accurate but look and listen for all the tall tale points as you mentioned fuel spitting out of exhaust signs of running rich but running rich will actually bring your temps down
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Old 03-07-2010, 03:22 PM   #5
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Default Temp gun

Thanks for all of the help again. What is a good temp gun?

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Originally Posted by bigjayjay1 View Post
getting a temp gun would be a good option since your using the spit method really isn't accurate but look and listen for all the tall tale points as you mentioned fuel spitting out of exhaust signs of running rich but running rich will actually bring your temps down
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Old 03-07-2010, 04:21 PM   #6
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I've always used a Raytech temp gun, little laser dot, aim shoot an it tells you the objects temperature
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Old 03-07-2010, 11:35 PM   #7
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It is also depending the fuel. A fuel with castor oil or more than 10% oil will give more residu from the exhaust
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Old 03-08-2010, 04:29 AM   #8
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Quote:
Originally Posted by Cisco904 View Post
I've always used a Raytech temp gun, little laser dot, aim shoot an it tells you the objects temperature
For a cheap temp gun I recommend the following:

Duratrax FlashPoint
http://www.amainhobbies.com/product_...perature-Gauge

OR

Pro Exotics PE-1
http://www.amainhobbies.com/product_...Gun-Tempguncom



Use the temp gun as a reference and don't just tune for temperature. Tune your motor for performance and smoke. Then use your temp gun to see what temp the motor likes to run at.
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Old 03-08-2010, 06:27 AM   #9
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Quote:
Originally Posted by shanty140 View Post
For a cheap temp gun I recommend the following:

Duratrax FlashPoint
http://www.amainhobbies.com/product_...perature-Gauge

OR

Pro Exotics PE-1
http://www.amainhobbies.com/product_...Gun-Tempguncom



Use the temp gun as a reference and don't just tune for temperature. Tune your motor for performance and smoke. Then use your temp gun to see what temp the motor likes to run at.
+1 on the duratrax or pe1. I have been using a pe1 for awhile and it works very well just keep the sensor clean and it will be accurate.
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