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Old 09-09-2016, 07:06 PM   #1
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Default Novarossi Pipe help

Hey guys , just bought my first Novarossi Roma .25 motor and pipe / manifold. I have a buddy who just saw what i bought and he told me the Manifold 41033 is too short. Is this true , i cant use this anyway?

What do these manifold do and should i return this one and buy a different one. This is going to go on a losi 3.0 Truggy.

This is my first NITRO.

Any input would be great!!

Thank you

Last edited by FASTLANE81; 09-09-2016 at 07:34 PM.
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Old 09-09-2016, 07:16 PM   #2
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The best Novarossi header/pipe combo for use in truggy was recommended to me by Monty Houston. He suggested the 41005 header with 9853 pipe. I use this combo in my Tekno truggy and it rips with lots of low end grunt and still good top end.
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Old 09-09-2016, 07:45 PM   #3
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The Roma is a bit different.

It has plenty of torque so you can dial it back a bit.

41033 manifold with 9901 or 2096 pipe works well.
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Old 09-09-2016, 09:14 PM   #4
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Nothing wrong with 41033. Use what you have, from my experience Roma runs well on any Novarossi pipes. The only problem i had was too much power lol. I think balance was the best with 41021 /9856 pipe with 7mm. Got about 6-7 minutes on that setup. It was damn crazy on 41001/9886 with 9mm insert. Run time was about 5 minutes. Lastly i tried 41021/9901 with 6.5 insert. Got little over 7 minutes. With this setup power was down and got about 7-8 minutes but i was restricting too much there was really no point of running the roma. But you gotta try the 41001/9886 pipe on the roma just for kicks and giggles.
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Old 09-09-2016, 09:24 PM   #5
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Oh the dynamite 086 worked pretty good too. It ran slightly hotter for some reason but it was pretty good extracting power from the roma. If i didnt have 41001/9886 i would run 086 all day.
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Old 09-10-2016, 04:13 PM   #6
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I'm on the track racing this. Would my setup still be OK. Also I'm curious about 41001/9886 setup for track racing.
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Old 09-10-2016, 11:48 PM   #7
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Well for club racing its fine as long as frequent pit stops dont bother you. For big major races you need race legal pipes.
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Old 09-11-2016, 06:17 PM   #8
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What am i looking for RACE legal pipe?
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Old 09-13-2016, 12:23 PM   #9
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Just use 9901/41021 . Usually works for all nova engines.
Otherwise find a 3 chamber efra legal pipes.
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Old 09-14-2016, 06:39 AM   #10
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For a Roma 9853/41001 , use a 8mm insert... remove 0.1-0.2 mm worth of head shim, convert carb to short needle...

if you want more runtime send the engine to me to be modified as I get excellent runtime with my version...

Interesting for me to read so many people had runtime issues with the Roma 25, as over the years I have modified quite a few of these and always found them to be exceptionally good on fuel, many times nearly matching most of the .21's.. When I see guys saying they can't get past 6 minutes I have to think there is something wrong with the tune or the setup of the engine..
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Old 07-05-2017, 01:51 PM   #11
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Maximo,can you elaborate on how to convert the nova csrb to a short needle please sir.what parts needed etc. Thanks
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