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Post by chanito on May 20, 2008 7:36:20 GMT -5
Please read this before posting questions about increasing the speed of your Ruckus. The Ruckus is a 49cc; water cooled, 4 cycle scooter and it is not restricted, it has a tuned intake and exhaust, so there is not such a thing as removing a little piece and make it go 50 mph. Most modifications will actually make it go slower or perform worse, so if you plan to add an intake or an exhaust do it for looks, sounds or the promise of further add ons in the future, jetting should only be done AFTER adjusting your idle mixture. Aftermarket parts like Variator or CDI will make your scooter perform better to some extent, so do not expect a rocket after you replace them, be realistic  |
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Post by I Heard A Rukus on May 20, 2008 9:00:25 GMT -5
Do not expect a rocket period. I have one of the fastest Rucks on the planet (stock engine case) and it's still not as fast as a mild tune on a Zuma, but that's a small price to pay for killer looks!
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Post by deryn1161993 on May 22, 2008 20:58:35 GMT -5
i just bought a ruckus and want more performance. What would give me the most bang for the buck?
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Post by Dandy Dan on May 25, 2008 16:43:00 GMT -5
The best mods are the ones that make better use of the power that you already have (because extracting more power is an expensive and difficult route). An aftermarket variator with lighter rollers will give you higher revs during acceleration for somewhat faster acceleration and it should gear you a bit taller on the top end so you'll go a few mph faster if the conditions are nice. Beyond that, mods like slick tires (Michelin Boppers) and a windscreen can reduce your drag and add a bit of speed too. If you're wanting to actually make the engine more powerful, make absolutely sure you'll willing to spend hundred of dollars and hours and hours of your time to wind up with a marginally faster and less reliable machine. If you are, then you need to decide between doing an engine swap or doing a big bore stock engine. The big bore pistons available for the stock engine are $280, 60cc and will get you into the high 40's. With an engine swap you can go as fast as you want although above 130mph you really need a steering damper  On their own, mods like CDI's, intakes, exhausts, cams etc yield little to no benefit. You may gain 1 mph here or there but nothing is going to make you significantly faster. You want to base your performance mods around either a big bore engine or an engine swap. If you're tossing a big bore piston into the stock engine, then I would say at the least you also need to do an aftermarket intake. These seems to get most of the potential power out of the big bore piston. Other mods like the H.O. cam from Battlescooter and a CDI can also squeak a bit more power out. Exhausts are still really just for looks and noise...don't expect much. In terms of 'bang for your buck', I guess a GY6 150cc engine swap would be the best bang for your buck since it'll give you about 55mph for $750 or so. ($50/mph) if you do it the cheapest way possible (buy a used chinese scooter and do all the work yourself). The bolt in big bore kits are around $1500 ($100/mph) and the big bore kit is ($280) or so but you gotta pay for boring and an intake so it's maybe $400 minimum for maybe 5mph ($80/mph). You could easily wind up paying $200/mph if you go all out with the stock engine and spend $1000-$1500 on parts for it. All of these figures are way higher than 2-stroke parts....it's one of the downsides to having a 50cc 4-stroke but there are quite a few upsides like engine sound, fuel economy, environmental impact, reliability etc. |
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Antig
Ruckster
Posts: 107
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Post by Antig on May 26, 2008 0:02:19 GMT -5
A GY6 is good and all but wouldn't it be the same concept as buying a Dolsoe instead of a Ruckus?
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Post by varroa on May 26, 2008 8:13:55 GMT -5
A GY6 is good and all but wouldn't it be the same concept as buying a Dolsoe instead of a Ruckus? ^ THE TRUTH HAS BEEN SPOKEN ^ |
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Post by grimstar8402 on Jun 4, 2008 16:41:40 GMT -5
does anyone have any insight on honda producing a new ruckus that has more power?
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Post by Kami no Chiizu on Jun 4, 2008 22:01:45 GMT -5
does anyone have any insight on honda producing a new ruckus that has more power? Unlikely, as more power would make it faster and possibly in a different license bracket. |
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Post by cooterssrt4 on Jun 26, 2008 10:16:05 GMT -5
is there certain brands to stick with. i will be purchasing everthing from the dealer. the guy told me he could get me an exahust , variater and a control box or something for about $500 and then i would see about 43 to 44 mph top speed
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Post by jedisabre7 on Jun 26, 2008 12:55:00 GMT -5
where are you located? If he's going to do the work, i'd say go for it. What pipe?? They do make a little difference.
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Post by Kami no Chiizu on Jun 26, 2008 17:08:46 GMT -5
is there certain brands to stick with. i will be purchasing everthing from the dealer. the guy told me he could get me an exahust , variater and a control box or something for about $500 and then i would see about 43 to 44 mph top speed Cooter, if you're getting a new Ruckus, it should top out at 43 mph already. See the thread you started. |
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Post by chanito on Jun 26, 2008 19:53:52 GMT -5
is there certain brands to stick with. i will be purchasing everthing from the dealer. the guy told me he could get me an exahust , variater and a control box or something for about $500 and then i would see about 43 to 44 mph top speed  Ask him first what kind of exhaust, variator and CDI box he is going to install, sounds fishy to me |
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Post by cooterssrt4 on Jul 11, 2008 11:34:28 GMT -5
ok he said leo vince exhaust and polini variator and just a cheap cdi box dont know the name
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Post by Firegut on Jul 11, 2008 15:10:20 GMT -5
If your ruckus is '06 or newer you'll likely see a top speed of 45mph with just polini. I did.
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Post by cooterssrt4 on Jul 11, 2008 18:14:34 GMT -5
ya its an 08 would I see the 45 on flats or down hill. cause I hit 44 down hill now and then the rev limiter I am usually right at 41 on flats tucking. siting strait up 38 on flats. got a winshield coming next week
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Post by Firegut on Jul 12, 2008 14:13:02 GMT -5
When I first installed it I thought I was hitting 47mph. With 43-44 on the flats without wind and 40-41 with wind. But now bombing down hill I hit the rev limiter at 45. My belt might be worn. I do a lot of long distance wide open riding and by next week I'll have over 3000 miles on it. Miles go quick. I only had Lucy since February.
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Post by cooterssrt4 on Jul 13, 2008 0:17:45 GMT -5
ya I got 300 on mine already its ony 7 days old . but anyway got my windshield from battlescooter today and installed it . waiting in polini variator and once I find out the best cdi box I will be getting that
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Post by smartbomb on Jul 28, 2008 1:09:49 GMT -5
It is posible to hit 50 mph on the stock motor with only bolt ons. I am not light, I weigh 200 lbs and have wide sholders, not good for aero. I can hit 50 on the flats on a good day without wind and with a high baro pressure.
I have simple mods, PC20 carb, Polini variator, Posh CDI and coil, Big K&N filter, Yoshimura exhaust, thin synthetic oil kept slightly below 1/2 way point to reduce windage with oil cooler and a light flywheel.
Most of the speed is due to careful tuning of the jets and variator weights for my weight.
Contrary to what is said, I think an exhaust makes a difference once you have a carb and the correct jetting for it. I think most exhasts probably need to be re jetted.
My speed is confirmed with a calibrated acewell speedo which reads about 3-4 mph less than stock at speed. I can easily smoke the local Ruckuses around here.
You need to spend time with tuning. My Ruck hits big bore speeds.
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Post by chanito on Jul 28, 2008 6:12:02 GMT -5
You must be a tunning wizzard, or that PC20 carb is super, i have yet to find ANY MUFFLER that out perform the stock on a stock engine, but i have not try a yoshimura with a big carb, i have a big bore and can not get to 50 on the flat streets of Miami, and only did on a downhill in tenneessee.  You should start to make your tunning kits and sale them, you will make millions 
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Post by smartbomb on Jul 28, 2008 10:58:35 GMT -5
From what I understand, 50 mph from a stock long block has been done by a few other local people besides me. I have many years experiance doing ECU tuning on cars and spent a good part of my youth tuning sidedraft carbs on carbs and tuning carbs on single cylinder dirtbikes.
I think the PC20 really helps. One of my theories is that the CV stock carb doesnt open all the way on most people, perhaps even with a cut spring. Cutting the spring reduces preload but increses the spring rate because it is effetivly incresing the load on it so the intial force needed to open the slide is less but the force needed to open it fully is increased.
I think that you might want to try a PC20 or better yet a Mikuni (I think the PC20 pilot circuit leaves something to be desired) and it might wake up your big bore. I think a pipe in in itself probably doesnt help power much but combne it with a properly jetted slide type carb and a low restriction air filter it makes a good difference.
My ruck stock struggled to reach 37 mph and was unrideable on the streets around here. I would get tailgated and have a long line of angery drivers behind me. I didnt feel safe. Now its ok and I can ride without impeding those behind me.
Also note that I cannot hit 50 mph consistantly on any given day, the atmospheric condtions have to be right for the jetting I have in the carb which is low 80's clear high bario pressure. If there is any significant wind, I cannot. I can hit 47-49 mph nearly any day though.
I belive that most people are clueless on tuning and don't carefuly tune their carburators or variator weights and or contra spring.
My sealevel jetting is:
Main jet 80-75 depending on conditions (with large k&n filter, reduces signal)
Needle at highest richest posistion
35 pilot drilled out to 50 in the main well (emulsion section kept the same)
Variator, works for me at 200 lbs in mostly flat terrain, jumps to 8000 rpm then pulls to 9000, right in the powerband:
Polini (bigger diameter than stock, higher ratio), polished ramps with Malossi grease
6 gram daytona weights (I think staggering weights doesnt work well)
stock contra spring
Spent a lot of time screwing with this.
The rest of my setup is: posh cdi and coil, light flywheel, blue clutch springs, yoshimura exhaust
I noticed that this engine is senstive to oil level and viscosity as well, I run a oil cooler so I can use a 0w30 or 5w30 synthetic and only fill the sump no more than halfway.
I think that having a lowered seat frame probably helps aerodynamics as well.
I have your big bore kit and plan to install it soon as well as port my head and perhaps switch to a Mikuni carb. I hope to be consistantly in the low to mid 50s which would make the ruck a really good commuter.
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