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Old 01-01-2003, 05:44 PM   #1
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Default dremel time

i have a 15fe engine. is it ok to port the carb out a bit for better flow? i know they sell a 5.5 mm carb, but in the meantime... why not? the only thing i could think of is that i dont have a low end needle on it. what do you guys think?
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Old 01-01-2003, 05:55 PM   #2
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wahturi;


Don't do it! You will surely cause more damage than good. A bigger Carb will make more power, but a Dremel tool is not the answer. I've used the Traxxas TRX.15 Carb (6.0 mm) and it really makes alot more power.
Removing the pullstarter will provide a BIG boost in power. The Backplate from an O.S. will fit. Also the lightweight flywheel will increase accelleration.
Unless you have a very BIG wallet or can get the parts for free. You are better off buying a better/faster engine. Also because of the porting in the .15FE, the Engine will ALWAYS run hot not matter what you do to it. This seems to be common on many Sport engines with huge ports. (the Traxxas even bigger!)

Last edited by popsracer; 01-01-2003 at 05:58 PM.
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Old 01-01-2003, 05:57 PM   #3
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dremels and carbs dont mix well the carb is a delicate thing just get a suitable bigger one.
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Old 01-01-2003, 05:59 PM   #4
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why not? i am careful. i would just take a little offat a time. and then widen out the rotor hole. lighter flywheel eh? hint hint.. how about dremel on that? that isnt nearly as close tolorances.
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Old 01-01-2003, 06:05 PM   #5
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its your decision, but personally after building some thousand race motors over 20 years it is an extreme rarity I will start whittling on a carb unless I am searching for a solution to a performance issue that cannot be solved any other way. I just won't do it unless I have to. If you feel comfortable feel free to have at it its your stuff. you asked for opinions and we gave them.
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Old 01-01-2003, 06:13 PM   #6
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as guys who have knowlege gained from years of experience, i fully respect your opinions.. i am just glad to be able to ask you guys questions. what could go wrong? burs? i wouldnt do it unless i felt comfortable with how safe you guys say it is. so i wont. maybe ill just buy a truck carb, cause this stock one SUCKS.
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Old 01-01-2003, 07:04 PM   #7
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Default buy a truck carb

wahturi;

The Traxxas TRX.15 carb is about $35-$40 usd. I have a couple of used ones I might part with. Where are you located?

Send me PM if your interested.
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Old 01-01-2003, 11:07 PM   #8
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Don't do that, you will ruin the carb. The barrel of the carb will get hot and warp. It won't go back together. I promise. Just run that fe until it wears out then buy a stronger engine. It's not worth spending $30 on
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Old 01-07-2003, 03:55 PM   #9
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Sounds to me that wahturi wants to experiment and learn. If the .15fe is a spare no-use motor, I'd say use it to learn from it.
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Old 01-07-2003, 04:55 PM   #10
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is a 20,00 rpm dremel fast enuf?

im not doing anything im just interested
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Old 01-07-2003, 05:42 PM   #11
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of course its fast enough. i think it is more important to use the right bit than what speed it runs at. i actually have an extra carb, so ithink i iwll mess with it someday. it would be really fun to port and engine out a little, but im still using mine for now.
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Old 01-08-2003, 03:49 PM   #12
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i have done what your talking about to a carb on mt-12 engine it took me quite a long time to get the barrell to slide freely and when i was done it worked but the engine wouldnt run for more than 4.5 minutes on a tank but it was fast

but hold everything isnt that a rotary carb i dont think its going to work dude i was able to disassemble my carb and dremel only the body whereas you have to do body and barrell dont think thats going to work
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Old 01-09-2003, 03:25 PM   #13
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i thought i would widen out the inside diameter and then match the hole in the rotor to that diameter. what's the problem with that?
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Old 01-09-2003, 03:58 PM   #14
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Just do it and then post some pictures OK?

You have been warned that it is tough to do, but go ahead it is your engine.
You will quickly find out that the 15FE is not worth messing with, even for fun.
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