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Old 06-17-2009, 06:43 AM   #1
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Default Fuel Filters - Are they worth having one?

I was thinking of buying a fuel filter but remembered that I read somewhere where they weren't worth it. Any thoughts? What are they filtering out of our nitro fuel and how long does a filter last?

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Old 06-17-2009, 06:52 AM   #2
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WOW!

Dude, not only are they worth it but they should be on the required parts list for a nitro car. Do you really want to risk a $150+ engine for a $10 or under filter. What if some dirt that's caked on your fuel tank falls in when you're filling? What if you get some dirt in your fuel bottle? Is that a chance you're willing to take?

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Old 06-17-2009, 06:53 AM   #3
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They filter out dirt, etc before entering the motor. IMO..yes...worth having...especially for off road vehicles. Also serve as a means to increase fuel capacity as a race strategy....some guys run 2 filters. Down side is it opens up another area for possible air leak so make sure they are seal tight and replace the O ring when needed.
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Old 06-17-2009, 07:04 AM   #4
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There is a stone clunk in my tank already. Do I really need another filter? Isn't the one in the tank enough? I have had fancy kyosho filters leak and cause a lean hot engine. If there is a stone filter in the tank is the external filter necessary? And then how often do you change the sealed type? If it clogs up it will cause a horrible running engine. I agree a filter is necessary but how much is too much?
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Old 06-17-2009, 07:10 AM   #5
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Quote:
Originally Posted by Frank L View Post
There is a stone clunk in my tank already. Do I really need another filter? Isn't the one in the tank enough? I have had fancy kyosho filters leak and cause a lean hot engine. If there is a stone filter in the tank is the external filter necessary? And then how often do you change the sealed type? If it clogs up it will cause a horrible running engine. I agree a filter is necessary but how much is too much?
Yes the Losi and other cars have a stone filter in the tank but I like the extra protection of another filter...personal preference I guess. As I mentioned in earlier post, the down side is that it can leak and cause issues like you described but I keep a close eye on mine to be sure its tight and the O Ring is good. As far as maint, you simply unscrew them and clean the inside and mesh trap out with motor spray or nitro cleaner, etc.
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Old 06-17-2009, 07:15 AM   #6
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Personally I do not run them. My rides have been fine
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Old 06-17-2009, 07:22 AM   #7
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+1 for EXTRA protection - Mugen Filter is good. Yes some has the stone filter just for that reason.

When we was teching for the RC PRO series, they only allowed 1 external fuel filter. Just an FYI.

But all in all - is one needed - not if you have a prefilter in your tank(stone) but I would suggest one. Like dude said EXTRA PROTECTION.
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Old 06-17-2009, 07:35 AM   #8
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I'll pick one up then. Any recommendations? Any better than another?

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Old 06-17-2009, 07:48 AM   #9
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I'll pick one up then. Any recommendations? Any better than another?

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Old 06-18-2009, 01:18 AM   #10
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exactly lol........................extra protection ,you dont want to risk da motor remember its a offroad thing your surrounded w/ dirt period
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Old 06-18-2009, 02:05 AM   #11
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Quote:
Originally Posted by Frank L View Post
There is a stone clunk in my tank already. Do I really need another filter? Isn't the one in the tank enough? I have had fancy kyosho filters leak and cause a lean hot engine. If there is a stone filter in the tank is the external filter necessary? And then how often do you change the sealed type? If it clogs up it will cause a horrible running engine. I agree a filter is necessary but how much is too much?
frank, the stone filter is fine. i had 2 brand new filters leak out of the box and that was when i first started racing. since then i dont even bother with a separate filter, if you ran something different other then losi that didnt have the in tank filter i would say get one but since ours have on it not needed
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Old 06-18-2009, 04:57 AM   #12
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Just another place for you to lose fuel and pick up air or have restricted fuel flow.The in tank filter works fine for me! Did I mention rc8 fuel tanks suck?
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Old 06-18-2009, 05:17 AM   #13
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I haven't ran one in a couple years. We had a few mystery
tuneing problems and found they went away after we removed
the filters. Some of the guys still run one of more, because there
engines are fuel pigs and some just for the bling factor.
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Old 06-18-2009, 08:02 AM   #14
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I have an RC8 with the replaced fuel tank. Anybody know if this fuel tank has the filter built in? It looks like it on the bottom of the tank.

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Old 06-18-2009, 09:31 AM   #15
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I have a Go 7port and was racing last week when the fuel filter came off afterwhich the car would start but at more than 3/4 throttle it would stall
It is idling well but there is a rhythmic chirping sound in the engine when idling
what can this be, is it the bearing, rear or front? is there a bird inside the engine?
Will open the engine up today and inspect it
What can I do for this engine?


My post in another thread
Now I know a fuel filter is needed, I only had the one in the D8 tank but the fuel tubing melted hence the filter came off
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