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Old 10-31-2009, 05:18 AM   #1
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Default BEST RUNTIME?

What engines are getting the best runtime? Ihave heard the Extechs and Novarissi 21-4 are good.
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Old 10-31-2009, 05:20 AM   #2
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I have a Losi 454 and I'm getting 8 minute tanks with it in my 8ight-t 2.0
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Old 10-31-2009, 05:27 AM   #3
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The extech gets good milage with that odd looking pipe. The novarassi is very good as well. If your running a truggy the c6 is great in power and run times. Also you get great run time out of a v-spec or a speed if you run the right pipe. Also the new werks b5 looks promising for time times as well.
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Old 10-31-2009, 05:40 AM   #4
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I had a speed with a 2060 pipe and 7m restrictor and could never get close to 10min in my mbx6. Lookin to hit that 11min mark on a regular basis. I know some of manufacturers are really looking to get the most mileage instead of all out power. 2 pits in a 30min main would be awesome!
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Old 10-31-2009, 05:45 AM   #5
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I have been working with a Jammin .21 ( Not Picco ) just to see how it would workout and to my surprise i get 9.0 to 9.5 per tank and tons of bottom
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Old 10-31-2009, 05:51 AM   #6
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Quote:
Originally Posted by JonnyW View Post
I had a speed with a 2060 pipe and 7m restrictor and could never get close to 10min in my mbx6. Lookin to hit that 11min mark on a regular basis. I know some of manufacturers are really looking to get the most mileage instead of all out power. 2 pits in a 30min main would be awesome!
The mbx6 has a small tank. Take out the fuel tank spacer and use the large filter. I needed to do that to get the car to hold 125cc of gas. I thought at first my new engine had bad mileage but it wasn't the engine it was the quantity of fuel in the car. Also once you get the speed to around 1.5-2 gallons is where it really opens up and gets awesome power and efficiency.

PS If you use a 6mm restrictor in that car you will still see all the top end in the world but your mileage will go up greatly as well.
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Old 10-31-2009, 05:56 AM   #7
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The mbx6 has a small tank. Take out the fuel tank spacer and use the large filter. I needed to do that to get the car to hold 125cc of gas. I thought at first my new engine had bad mileage but it wasn't the engine it was the quantity of fuel in the car. Also once you get the speed to around 1.5-2 gallons is where it really opens up and gets awesome power and efficiency.
Fuel grades is one of the most over looked items when it come to fuel mileage. In some causes almost 1/2 min.
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Old 10-31-2009, 06:01 AM   #8
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Quote:
Originally Posted by 323 R/C Racing View Post
I have been working with a Jammin .21 ( Not Picco ) just to see how it would workout and to my surprise i get 9.0 to 9.5 per tank and tons of bottom

Jammin 21 is a Picco !
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Old 10-31-2009, 06:13 AM   #9
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i have a RB C6 the last time i timed it it ran out at 11:17 ran out of fuel engine running 240 degrees.

fuel runtime also depend on the fuel,pipe,engine,clutch setup,and gearing it all works together
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Old 10-31-2009, 06:20 AM   #10
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Jammin 21 is a Picco !
Man I need to wake up the engine i have been testing is a Hyper .21 T.
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Old 10-31-2009, 06:37 AM   #11
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my ceo c6,6.5 venturi,odo fuel,ae 2035 pipe,2 .95 springs, 2 1.0 springs, in my 8ight t with the block still in the tank and no extra tubing can go over 13 mins. temping in the 240-250 range
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Old 10-31-2009, 06:44 AM   #12
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my ceo c6,6.5 venturi,odo fuel,ae 2035 pipe,2 .95 springs, 2 1.0 springs, in my 8ight t with the block still in the tank and no extra tubing can go over 13 mins. temping in the 240-250 range
what fuel do you run ? the 6.5 must make a diff im running a 8 venturi
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Old 10-31-2009, 06:47 AM   #13
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i'm getting 9 min out of a picco evo2 that has like 8 gals thru it. i love that motor.
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Old 10-31-2009, 07:28 AM   #14
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Novarossi +4 and 9901


RB C6 and 2045$$$$$$$$$$
OS Speed $$$$$$$$$$$$$$$



Budget: RB Hobby 9 with 2045
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Old 10-31-2009, 07:31 AM   #15
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I run os speed engines. In the buggy I can get 9:30-9:45 with a 6 mm running at 230. In the truggy the same speed engine will go 10-10:30 usually with a 7mm running at 240-250. I run coldfusion fuel 30% magic blend and use a p3 plug. Ohh yea both engines have the eb mods head buttons and I run the os 2060 pipes and headers. And I am a little throttle happy. I also have a powerhouse modded grp .21 engine that had gotten 11 min in the truggy with a 7mm. Running at 240nwith a dyn 053 pipe and long header. The grp does not have the crazy fast top end like the speeds and it's a little short on the bottom too but the mid range is off the chart and that's where most of the driving is done anyway.
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