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Old 04-05-2009, 10:25 AM   #1
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Default fuel mileage help

I'm running a NR Toro Nero with 30% nitro, medium plug(McCoy), and a JP-3 in a D8. It runs beautiful and handles great. Trouble is I'm having trouble making a 7 min run. Will switching to 20% make a big difference. Any other suggestions?
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Old 04-05-2009, 10:28 AM   #2
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JP-3 is a fuel hog. Good pipe to get a tune with it, but it has poor economy. I suggest running a different pipe and you'll be surprised. In my Go 3-port I was having trouble with 6-7 minutes as well; when I put a Dynamite 007HT on and re-tuned I gained 2-3 minutes.
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Old 04-05-2009, 11:00 AM   #3
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the pipe is probably your problem.for a cheap pipe try the ae 2035.i got 10 minutes and about a 1/4 tank of fuel left in my truggy.i am not a fuel mileage minded driver either.temps were around 230.
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Old 04-05-2009, 12:38 PM   #4
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pipe, JP's on a nova based motor is caca.

PM Houston on here, or email him [his email if in my sig] he'll get you fixed up
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Old 04-05-2009, 12:39 PM   #5
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Quote:
Originally Posted by Miniracer23 View Post
I'm running a NR Toro Nero with 30% nitro, medium plug(McCoy), and a JP-3 in a D8. It runs beautiful and handles great. Trouble is I'm having trouble making a 7 min run. Will switching to 20% make a big difference. Any other suggestions?
no jp pipes on novarossi!!!!
use a 9853 w/ 41001 or 41005 , for budget use ofna 053
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Old 04-05-2009, 03:11 PM   #6
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Yup try different pipe, go smaller on the carb insert and try to be smooth on the throttle.
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Old 04-06-2009, 03:57 AM   #7
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Thanks a lot. Ordered the 053. I'll see how it does next race.
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Old 04-06-2009, 04:20 AM   #8
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I'm having the same problem as well although it could just be because the engine is pretty new. I ran my first races on Saturday and was barely able to make it through the 6 min. As a matter of fact, it ran out just as I finished my last lap on my second race. I am running a tuned GRP .21 and a Dynamite 053 pipe.
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Old 04-06-2009, 08:13 AM   #9
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just an fyi, I ran a plus 4 with a losi re11 pipe and it ran great.
10 minutes in buggy and smooth. have yet to try any nova pipes but for some this may be an alternative.
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Old 04-06-2009, 09:08 AM   #10
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Originally Posted by 1fastguy1 View Post
just an fyi, I ran a plus 4 with a losi re11 pipe and it ran great.
10 minutes in buggy and smooth. have yet to try any nova pipes but for some this may be an alternative.
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did you pit at 10 minutes also? Did it have enough bottom or just controllable. Give me some info as I am trying to find an alternative to the Nova pipes.
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Old 04-06-2009, 12:53 PM   #11
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no jp pipes on novarossi!!!!
use a 9853 w/ 41001 or 41005 , for budget use ofna 053
Whats the reason behind not using JP pipes ?
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Old 04-06-2009, 01:00 PM   #12
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Quote:
Originally Posted by Chris-s View Post
Whats the reason behind not using JP pipes ?
thirsty, jp-4 is not that bad. but the RE11 gets my vote. I get close to 11 min on a v-spec.
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Old 04-06-2009, 01:41 PM   #13
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Go to a 6.5mm restrictor and try the Trinity Big Boy pipe. That really helps with fuel mileage. I am getting 12+ with my Murnan Modified +4.
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Old 04-06-2009, 02:15 PM   #14
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Originally Posted by jrwoodchuck View Post
thirsty, jp-4 is not that bad. but the RE11 gets my vote. I get close to 11 min on a v-spec.
Same here...RE-11 is the same specs as the OS 2050 pipe which is no longer made. I can get 10 mins as well depending on the track with the v-spec. Another option is to limit WOT to 50-75% so long as top end is not sacrificed.

I have heard 20% will help, but have not tried it.
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Old 04-06-2009, 03:01 PM   #15
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Quote:
Originally Posted by rfleck View Post
Same here...RE-11 is the same specs as the OS 2050 pipe which is no longer made. I can get 10 mins as well depending on the track with the v-spec. Another option is to limit WOT to 50-75% so long as top end is not sacrificed.

I have heard 20% will help, but have not tried it.
rfleck and i race together and he was the first to make the 10min heat with no pit stops. i did give him a hard time about the 4 feet of fuel line in his car, but had to shut up when it teched dead on at 125cc. but both of us can make the 10 minute heats. i use the stock 8mm restrictor and can get full throttel if i need it, i'm not sure what restrictor ron is using
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