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Old 02-14-2005, 10:03 PM   #1
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Rotary vs. slide carbs

now I know that slide carbs are better but what I would like to know is WHY they are better

this has been driving me up the wall for quite some time and I keep getting the response "they are just better" from a setup standpoint they are more fussy and as a result you would think they would be bad but people use them

what is the advantage to them please can somebody clarify this for me thanks
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Old 02-14-2005, 10:24 PM   #2
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The slide carb has faster response because the air has a smaller distance to travel. On a barrel carb, when you open the throtle, the air has to go around the hole, on the slide carb, the air just goes straight tru.

Barrel Carb.
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Old 02-14-2005, 10:25 PM   #3
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You might want to read the article on this link
http://www.rcnitro.com/rn/articles/carburetor.asp

Slide carb
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Old 02-16-2005, 03:02 PM   #4
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Couldn't have said it better myself. Great articles there. For no matter what nitro I have, I'd get slide carb. In general though 8th scales ( on and off) don't come with rotary carb. 10ths they do, but I'd run slide.
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Old 02-16-2005, 03:54 PM   #5
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thank you nitrodude for your detailed answer to the question now I know why slide carbs are better than rotaries

thank you for taking the time to help me out with that

and I will be fitting a slide carb to my ntc3 rtr + as soon as I work out which one to fit
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Old 02-16-2005, 04:36 PM   #6
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Yep. Just switch around the steering horn and linkage to look like this.

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Old 02-16-2005, 04:46 PM   #7
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looks like you got a hardcore ti upper deck and you have modified your chassis yes?

I am considering the hardcore pro ti chassis and ti upper deck but its gonna cost me
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Old 02-16-2005, 08:28 PM   #8
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Thats not mine actually. I drive an R40.
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Old 02-16-2005, 08:54 PM   #9
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Glad to be of help, we were all noobs at one point. I woulnt get a TI chassis, TI doenst disipate heat very well and it will cause your engine to run hotter than with aluminum chassis, just get an aftermarket chassis.

Heres something to try on the NTC3, its a little trick from a friend of mine.
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Old 02-16-2005, 09:25 PM   #10
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What engine is that?
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Old 02-16-2005, 10:15 PM   #11
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I was considering the ti chassis to reduce weight and chassis flex but if it will give me a heat problem I will consider it more before I purchase i really did think that reducing weight is the go as the class I am in I pretty much have to run the ae .15 pull start that came with it, (I am in Australia) and its VORTEC's rule just trust me I have to use this engine and was going to take steps to reduce weight by doing the following
  • carbon fibre/graphite hopups
  • lightweight screw kit
  • chassis change/modification to reduce its overall weight

I mean the chassis on this thing is a boat its a slab of aluminium almost covering the entire surface area of the bottom of the car and I would imagine it would weigh a tonne I was going to do some custom mods to it to reduce weight but I dont want to weaken it to the point that it has more chassis flex so I havnt done it. Just thought buying a hardcore ti PRO one would give me a weight gain.
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Old 02-16-2005, 10:28 PM   #12
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You could try a K-Factory aluminium chassis, had a look at one the other day they are thicker than a standard chassis but are milled out quite alot to lighten them, plus they have fins milled on the bottom of the chassis under the motor and a nice slot infront of the motor for more cooling air.

They also make a nice carbon radio tray and motor side chassis brace which stiffened up the car nicely when I put them on.
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Old 02-16-2005, 11:01 PM   #13
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Default Carbs

Rotary carbs are made for airplanes or a constant speed, slide carbs are designed for a changing speed.The first car engines were orginally pulled out of airplanes and the rotary carb was the only option. HAYWYRE
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Old 02-16-2005, 11:52 PM   #14
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Quote:
Originally posted by HarKonnenD
What engine is that?
RB concept
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Old 02-17-2005, 04:27 AM   #15
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Quote:
Originally posted by nitrodude
Glad to be of help, we were all noobs at one point. I woulnt get a TI chassis, TI doenst disipate heat very well and it will cause your engine to run hotter than with aluminum chassis, just get an aftermarket chassis.

Heres something to try on the NTC3, its a little trick from a friend of mine.



what is the trick???
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