Traxxas Carb Settings

Sep 14, 2011 1 Comment by

When we see a racer is getting frustrated chasing a setup by throwing tweak after tweak at a vehicle, we often recommend starting over with the factory baseline setup. The same often holds true for tuning a nitro engine. Instead of tuning and tuning, we recommend starting over with the factory settings.

If you have a Traxxas TRX 3.3 engine, set the high speed needle four turns out. To do this, use a small flat blade screwdriver to turn the high speed need clockwise until it bottoms out (do not over tighten the screw). Then back the screw out by turning it counter-clockwise four full turns. The low speed needle should be set flush with slide valve body which is the piece the low speed needle screw threads into.

These base line settings also work well for the Traxxas TRX 2.5 and TRX 2.5R.

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About the author

About Matt:I think it’s safe to say I’ve done a little bit of everything in RC. That said, I predominately race off-road and my current passion is short course. One of my all-time favorite classes is oval carpet racing. Besides racing, I can often be found working on one of my many never-complete projects, and it seems I have an ever growing collection of rock crawlers—specifically scale crawlers. Matt’s 5 Hot Topics: Short course, Racing, Scale Builds, Crawling and the General RC Hobby

One Response to “Traxxas Carb Settings”

  1. legal eagle says:

    Good article Matt – when I worked at a local shop, I can’t tell you how many “repair jobs” I did on Traxxas engines that involved putting the needles back to factory settings! They were pretty happy when they came in and saw no labor charges as well :)

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