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Old 08-20-2013 | 02:35 AM
  #3391  
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Uriah, have you seen these .12 TOP nova engines? Not sure if new or old. What is your take on them?

Sam
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Old 08-23-2013 | 05:01 PM
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Originally Posted by HHH
Uriah, have you seen these .12 TOP nova engines? Not sure if new or old. What is your take on them?

Sam
So far I've only seen them run. They seem good. These are a new line of top engines. The .12 looks a lot like a plus 12-3SCT. The .21's look like a 35+21, and the other .21 looks like a kangaroo.
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Old 08-23-2013 | 08:33 PM
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Hi Uriah, in the Picco thread you mentioned:

"Usually it's best to set the EPA to the same size as the ventury."

Why is this? Just checking because I have always set up the carb to fully open.
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Old 08-24-2013 | 05:54 PM
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Originally Posted by mrlahey
Hi Uriah, in the Picco thread you mentioned:

"Usually it's best to set the EPA to the same size as the ventury."

Why is this? Just checking because I have always set up the carb to fully open.
Opening the slide past the size of the ventury usually does nothing to increase power when the engine is close to optimal tune. You want the ventury shape to be smooth through the carb body to maximize airflow. Opening past the ventury can causes an air flow disturbance, reducing the air speed.

In some rare cases I have seen opening the slide past the ventury will increase power. Most of the time opening past does nothing though.

Give both ways a try next time at the track. Just make sure you don't pull too far, and stress your carb, and servo.
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Old 08-24-2013 | 08:57 PM
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Got my shirt today, thanks Uriah.
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Old 08-25-2013 | 05:50 PM
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Congrats Uriah on your podium finish @ the glc
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Old 09-03-2013 | 09:53 AM
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Do you guys know of any murnan mod .21 engine to be use in GT racing that would reach 9 min. and 30 sec.? we race 45 min. here and would like to pit 5 times instead of 6.
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Old 09-03-2013 | 02:19 PM
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Will the piston/sleeve rod and crankshaft from a RBM3 fit into a RBT10RC?
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Old 09-03-2013 | 02:23 PM
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This motor
Attached Thumbnails Murnan Modified Motors-image.jpg  
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Old 09-11-2013 | 06:10 AM
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Originally Posted by JOE SI
Will the piston/sleeve rod and crankshaft from a RBM3 fit into a RBT10RC?
Yes, it will fit.
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Old 09-11-2013 | 06:22 AM
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Originally Posted by DDG
Do you guys know of any murnan mod .21 engine to be use in GT racing that would reach 9 min. and 30 sec.? we race 45 min. here and would like to pit 5 times instead of 6.
Depends on driver, and the track. The nova flash rally, or Reds M7GT will be good on mileage, and power. I've never tried pushing them that far on mileage.

We can get there with the bonito, but its not as fast as the other two above mentioned.
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Old 09-11-2013 | 08:44 AM
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Thanks for the reply grinder. What is the best clutch setting for mileage? softt side or on the hard side?
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Old 09-11-2013 | 03:51 PM
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Originally Posted by DDG
Thanks for the reply grinder. What is the best clutch setting for mileage? softt side or on the hard side?
A soft clutch is better for mileage. Although it can make the engine run hotter, and its slower out of the corners.

I prefer a harder clutch. Then you can roll into the throttle to save fuel if needed.
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Old 09-18-2013 | 05:01 PM
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Default 2013 On Road Paved Fuel Nationals

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Thanks again Murnan Modifieds for giving me the reliable, powerful, and fuel efficient M3 allowing me to place 7th overall in the A main at the On Road Fuel Nationals! I am always pleased with the results of your efforts i am looking forward to using these products On and Off road next year!!!! Thanks Again
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Old 10-04-2013 | 06:51 AM
  #3405  
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I was lucky enough to try a Murnan mod Virtus on my Team C GT8. "Insanely fast". It would hop from corner to corner, and on our 130 feet straightaway, The tires seem to look for more traction. until around 3/4 of our straightaway. It would bounce a little and I was using Sweep 40's slicks. Just Amamzing !!!
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