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Newbie | ![]() Quote:
Speed and Power are two very very different things. Speed is the Result of Power multiplied by Time. More Power does not equal more Speed, relatively, it merely means you can change the multiplier (gearing) to keep wheel torque, but reduce engine rpm per wheel rpm. And yes, WOT is going to be your top speed, as less than WOT would not be permitting the airflow past the venturi in the required volume to reach the potential of all the work done to the ports. Maximum power is achieved at WIDE OPEN THROTTLE. With the larger gearing at 20t pinion and 54t spur with a 20t drive gear, and on 190mm tires, pushes the ability of engine to reach top rpm within 500ft.....0mph-61mph-0mph in under 1000ft isn't an easy task with a 30cc or less engine, and no pipe......... Last edited by bobdudeguyman; 06-16-2017 at 07:19 PM. | |
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Addict | ![]() WOW !!!! Did you miss the boat. Speed is time over a distance and the faster you achieve speed over a distance the faster you go. Why do you think the 1/4 mile was invented for?????? Top speed can be calculated from the 1/4 mile drag. HP is what is needed to push the car faster to go faster. HP and weight are proportional to go faster. Less weight and more HP will result in a faster speed over distance. SO if you think holding the throttle wide open during the entire run will achieve full speed you are loosing top speed. You can easily go faster with tuning to 65-70 mph. Just not the way your doing it now. You can also use a 2 speed for more speed but until you understand HP it would be useless. Real racers never talk about speed. All hey talk about is HP. You can only get so much speed from gearing hp. So if your theory is true then why can't you get the same speed from the stock motor????????????????? Why did you buy a bigger motor with more HP! TIP: Never hold the throttle wide open. Hold the throttle and allow the engine to push and then back of slightly and then apply full throttle again. It called blipping the throttle and by doing it right you can go faster. Holding the throttle wide open bogs the engine down slowing it down until the engine can catch up. ![]() Last edited by king quarterscale; 06-17-2017 at 05:41 AM. |
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Addict Join Date: Feb 2012 Location: Huntington
Posts: 330
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Wrong as usual King do you sit back and try to be always wrong Or do you take the other side of the debate just for arguing Because what ever anyone says you say the opposite even though there right There's doctors out there that can help you But you would say that there wrong to I'd bet Last edited by Nitrocat; 06-17-2017 at 06:01 AM. | |
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Addict | ![]() SO speed is not time over distance???? https://www.reference.com/science/sp...bda874cce72019 ( How the HELL does GPS work then??? ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() There's doctors out there that can help you AS you have been Wrong every time! Last edited by king quarterscale; 06-18-2017 at 06:34 AM. |
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Addict Join Date: Feb 2012 Location: Huntington
Posts: 330
| ![]() Nice to here from you King as always 5 hp can only push a vehicle so fast And your answer is a two speed to help top speed If a car is 100lbs and has a 5 hp motor and just for fun say it can run 100 mph in top gear and not pick up anymore speed How would you make it go faster without changing anything Remember it's maxed out |
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![]() | #8 | |
Addict | ![]() Quote:
Were talking about a HPI 5b. A stock 5b with a 29cc motor can do 30-40 mph. with increase gearing it can do a little more but you will lose some low end. With a 8 hp motor the speed should be in the 60mph range and with higher gears a little more. A stock muffler doesn't add anything. A tune pipe will. As with a 2 speed kit too properly tuned. A 100 pound car isn't going to do 100 mph with a 5 hp motor in any way possible. ![]() If you want the fastest possible speed in the shortest distance then HP and gearing are all you need. ![]() ![]() ![]() ![]() ![]() ![]() ![]() You want to brake the 100MPH with a 5b then you need a twin cylinder head. More HP! http://www.oneillbrothers.com/rc-car...x-package.html Last edited by king quarterscale; 06-18-2017 at 06:35 AM. | |
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Newbie | ![]() In comparison... The 41cc Zenoah G43L engine on my GoPed, is stock rated at 1.2hp and 12,000rpm With a carb & manifold swap, some timing adjsutments, etc.. it is over 2hp ...only TWO horsepower! Yet, when running fully loaded with full tanks (50lbs), carrying me in full riding gear with pack (200lbs), and another 40-50lbs on a fully-loaded trailer, she can still reach over 40mph on flat ground, keep up with street traffic, and pull up any hill in town, with ease. ...so tell me again how much power you need for speed?? ![]() ![]() ![]() Last edited by bobdudeguyman; 06-17-2017 at 11:06 AM. |
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Addict | ![]() Quote: ![]() ![]() I found the spec for that engine. http://scooter.wikia.com/wiki/Zenoah_G43L-D it is already 2 hp So I what you did was no real improvement.. Get a gp460 http://www.davesmotors.com/chung-yan...-4-2hp-cy.html Last edited by king quarterscale; 06-17-2017 at 12:08 PM. |
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![]() | #11 | |
Newbie | ![]() Quote:
Boy, you are definitely proving yourself to be a real true idiot! ![]() Nobody (at least not me) is trying to do wheelies or burnouts on a stand-up scooter, with a nearly-stock engine, while pulling a trailer in 35mph traffic ![]() The scooter is NOT a race car. I did not build it to "go fast" LOL! It is designed to navigate the surface streets of the city I live in, LEGALLY, with no registration, no insurance, no license required, and also legally pass on the right and get front row seat at every intersection. All while getting over 100mpg fuel efficiency and ALSO being quiet enough to drive in residential areas late at night without anyone noticing. The highest speed limit in town is 40mph, and 90% of town is residential zone at 20mph speed limit. The average speed you see, is because I don't feel the need to drive EXCESSIVELY FAST & RECKLESSLY through traffic in town. Which actually, believe it or not, can get you what is called a "driving infraction" issued to you by a law enforcement officer, and even cost money and court time! Regardless of how fast you can go, the speed limit and traffic laws are all still the same! ![]() Also, the GEARING is VERY different than the Baja. The scoot is running an 8t drive sprocket and a 76t wheel sprocket for a 9.5:1 gear ratio, where the Baja is running a 20t pinion and 54t spur with a 20t drive gear, putting the gear ratio around 2.3:1 which is VERY VERY different, and quite necessary with the weight of the moving scoot over 300lbs and the Baja is less than 30lbs... Apparently you're not too familiar with how torque is applied. Horsepower and Torque are two VERY different things. Mathematically, horsepower equals torque multiplied by rpm. So, to make more horsepower an engine needs to generate more torque, operate at higher rpm, or both. The G43L (G430RC) is stock $200 engine from ddm, where the engine in my Baja is a $1,000 custom, built by me, to my personally-preferred specifications. It is HEAVILY modified and running a 17:1 compression dome, where the STOCK G430RC is only 8:1 compression in it's STOCK FORM. And when comparing stock to stock, there is VERY little difference between the G290RC and the G430RC, one is simply larger displacement, and different design platform. ANY PISTON-POWERED GASOLINE INTERNAL COMBUSTION ENGINE is going to be in a similar compression range, regardless of two or four stroke, chamber displacement, or whether its full-race or totally stock. Even a typical automotive four-stroke engine is around 8-9:1 compression factory minimal to achieve proper combustion, and a high-end of 15-17:1 compression, which is where extremely high-octane fuel, or methanol, is required to prevent detonation.Which is where timing comes in. Advancing ignition timing can make great improvements in throttle response, low-rpm torque, and overall increased combustion efficiency. However, the more powerful and efficient an engine becomes, the less maximum advance is needed to achieve the same results. Also retarding ignition timing is DIRELY NECESSARY in high-compression and forced-induction engines, as to prevent pre-ignition and detonation, as the compression increases dramatically, which is actually where engines make the MOST power...right at the fine edge of detonation. I've been building and modifying, both engines and machines of many types, for over 20 years. But, honestly, I don't really want to start off a junior-high physics lesson thread because other people were too busy F'n off in school to learn this stuff.... Last edited by bobdudeguyman; 06-17-2017 at 01:18 PM. | |
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Newbie | ![]() Here's a cool pic from back in the day (before i went all legal-eagle) ![]() That is a built-to-the-hilt naturally-aspirated Mitsubishi 2.0L inline 4-cylinder sitting in a beautiful blue Neon Highline 5-speed that I had the wonderful pleasure of building in the late 90's. forged pistons, forged rods, forged crank, double-coil valve springs, radical roller cam, 60,000v MSD distributorless ignition, stainless 4-2-1 header w/ 1-1/4 primaries & 3" collector, stainless straight pipe, all stainless braided hoses, 35% underdrive pulleys, four-core radiator, all tube swingarms & poly bushings, front & rear strut bars, floor bar, roof bar, adjustable coilovers all around, massive sway bars, B&M shifter, stage 2 clutch, limited slip diff, stripped to nothing but two seats & belts, and only god knows what all im forgetting, it's been a few days... ![]() ...she'd come out of 4th and into 5th at around 120mph @ 8,700rpm..... So much fun....it was DEFINITELY illegal! HA! I kept it in a storage unit just outside of town..... ![]() ![]() Last edited by bobdudeguyman; 06-17-2017 at 02:46 PM. |
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![]() | #13 |
Addict Join Date: Feb 2012 Location: Huntington
Posts: 330
| ![]() King you are a silver tongued Devil You old smooth talker |
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Addict | ![]() Quote:
![]() ![]() got it all wrong with HP. HP is the push to the finish line first! RPM isn't going to push a 2 ton car or a 18 wheeler. You seem to think you know more than everyone who is joining the 100 mpH club that HP doesn't make speed. Well enjoy the video. You sir won't be joining this club any time soon or ever. https://youtu.be/vOa1S4pGw6I?t=30 Try liop that's better suited for you. OBR 30.5 cc 8.2 hp motor $475+ http://www.oneillbrothers.com/rc-car...er-engine.html OBR 27.2 engines are running 78 mph.https://youtu.be/LJOw0Db1H0g?t=3 Something is funky here???????? I know!!!! You built it but didn't custom build it you customized built it. Custom built means you actually built it from scratch ( make the parts yourself ) and it is only one of a kind. Buying parts from a retailer and putting it together yourself isn't custom built. Anyone can do that! ![]() Last edited by king quarterscale; 06-19-2017 at 07:01 AM. | |
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Newbie | ![]() Quote:
now THAT'S ****in funny! ![]() Way to talk yourself into a dunce corner, dude! ![]() ![]() Who said anything about 100mph?? I don't care about your "100mph Club" And personally, if I had wanted your opinion, I would have put a quarter in your slot :P Last edited by bobdudeguyman; 06-18-2017 at 12:47 PM. | |
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Newbie | ![]() okay smart guy, since I didn't build my Baja motor, show me where i bought this motor four years ago, the list of other people who also have this exact engine, and explain the specifications to me... ![]() ![]() Last edited by bobdudeguyman; 06-18-2017 at 01:10 PM. |
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Addict Join Date: Feb 2012 Location: Huntington
Posts: 330
| ![]() Quote: What did you do king will post links for days and then some Why he's right even though the links were made by him or someone that may be right or not more likely not King never met a link he wouldn't repost Last edited by Nitrocat; 06-19-2017 at 03:09 AM. | |
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![]() | #20 | |
Newbie | ![]() Quote:
![]() ![]() ![]() ![]() ![]() ![]() OMG...my sides hurt... ![]() I honestly never thought I'd get this much comedic entertainment from a forum post with only 6 words and a single youtube link! ![]() ![]() ![]() | |
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