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Nitro Engine Factory Needle Settings List


a-x-l-e

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hi guys not bin on this forum for long. i just got a hong nor x1x CRT from ebay in nearly new condition its awsome but im having real trouble with tuning it.

this is the first nitro car i have had and never done any thing on an engin b4.

i got it working ok but as soon as i give it full throttle it bogs really bad ive tried ajusting it but cant seem to get it ryt.

and i understand if u hold the fuel line it should only take about 3/4 seconds to cut out, mine took about 10 earlier does that mean its using to much fuel

any help would be greatly appreciated

thanks leon

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Can anyone please help with the factory needle settings for a STS D21B

found this for the STS D21B engine

D21B (#2101)

Buggy Competition Engine

Cylinder Contents : 3.48cc

Bore: 16.20mm / Stroke:16.80mm

Crankshaft : 14mm SG type

Carburetor : 2 Needles Slide 8 mm

Piston / Sleeve : ABC 5P

Glow-plug : Standard / Turbo

Use : 1/8 buggy

STS Racing Taiwan 21B

*** .28 & .21 use the same Carburator!

Factory needle setting

HSN 2T out

LSN 3T out

Edited by shent
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  • 2 weeks later...

Hi,

I've found some info.

I read factory is HSN 3.5 turns out from fully closed. LSN flush with collar.

I think this is way to rich for normal use. I also read 2.5 out on HSN and 3 out on LSN.

I'm looking at mine this weekend so let you know how it goes.

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  • 2 weeks later...

Anyone ?? It's needed badly !

work with g3.0 settings (rich)

HSN - Flush/ sticking out roughly around 1mm from its casing

LSN - Flush with the casing

know what plug in engine an fuel using? Also dry the airfilter could be damp with fuel also..

Edited by R46
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  • 5 weeks later...

Can anyone help me with my request.

Recently bought a 1/10 Carson Nitro Truck off ebay. I am looking for the engine settings however I do not have any information as to the model type. The engine says 3.5 on it and as shown in the picture is the one on the left.

I know it is a long short but I am hoping someone can help as I want to retune the engine from stock to get it running right.

photo10_zps1bce7882.jpg

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  • 2 weeks later...

Hpi G3.0 H.O engine HPI-107824 that comes in the WR8

HSN Flush

LSN Flush

I also counted the turns to make it more accurate for anyone

HSN Roughly TWO turns out

LSN FOUR turns out

Taken from winding them all the way in.

On my kit this is mega rich, so you should be a good starting point.

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  • 3 weeks later...

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