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Old 06-16-2017, 03:24 PM   #1
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Default 61.1mph Official

It was a good day today ;)

https://youtu.be/WaVKq0JA3ag
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Old 06-16-2017, 05:01 PM   #2
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Default Re: 61.1mph Official

Holding the throttle wide open isn't going to get top speed. A better exhaust system will increase the HP and result in more speed. If you want real speed then get the 12 hp motor!
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Old 06-16-2017, 05:30 PM   #3
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Default Re: 61.1mph Official

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Originally Posted by king quarterscale View Post
Holding the throttle wide open isn't going to get top speed. A better exhaust system will increase the HP and result in more speed. If you want real speed then get the 12 hp motor!
These runs are with the muffler and silencer SPECIFICALLY. I have a dominator FAST pipe that I also run, as well as different tire/wheel combinations, gear combinations, and setups including the tube steel cage and paddles for the dunes.

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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Old 06-17-2017, 05:34 AM   #4
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Default Re: 61.1mph Official

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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Old 06-17-2017, 05:54 AM   #5
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Default 61.1mph Official

Quote:
Originally Posted by king quarterscale View Post
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.


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
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Last edited by Nitrocat; 06-17-2017 at 06:01 AM.
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Old 06-17-2017, 06:04 AM   #6
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Default Re: 61.1mph Official

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Originally Posted by Nitrocat View Post
Wrong as usual King do you sit back and try to be always wrong
SO speed is not time over distance????

https://www.reference.com/science/sp...bda874cce72019

( How the HELL does GPS work then???: lmao:) and more HP will not make you go faster. I guess you better tell the engine manufactures they got it all wrong. Promoting HP is not going to make more speed. SO all we need is ???? now to go faster BS????????? It a combo of HP and gearing! The OP is using a 8 Hp motor with higher gearing????? I suggested some improvements and You Go on the Wrong attack as usual and fail every time.


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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Old 06-17-2017, 07:39 AM   #7
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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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Old 06-17-2017, 09:41 AM   #8
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Default Re: 61.1mph Official

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Originally Posted by Nitrocat View Post
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
Ludacris to all your inmput!
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. Gearing and tire size will change the factors greatly.
If you want the fastest possible speed in the shortest distance then HP and gearing are all you need. I can do this all day. So keep on WRONGING me. You can't even prove speed is NOT time over distance! Which is variable as The OP is just doing speed laps down the street with no controlled test. GPS is measured by time and distance more accurately. But OP needs a start line and finish line to accurately measure. A controlled test.


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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Old 06-17-2017, 10:40 AM   #9
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Default Re: 61.1mph Official

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??

Click the image to open in full size.

Click the image to open in full size.

Last edited by bobdudeguyman; 06-17-2017 at 11:06 AM.
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Old 06-17-2017, 11:37 AM   #10
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Default Re: 61.1mph Official

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Originally Posted by bobdudeguyman View Post
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??

Click the image to open in full size.

Click the image to open in full size.
Tire size and gear ratio play a part in speed and weight. The goped tire size looks to be around 10" and the gear ratio is about the same. Want more speed then double the HP. Don't expect double the speed. Weight will greatly reduce speed and gearing But again that goped doesn't do burn outs or pull wheelies with you on it.Further more the Zenoah rc engines run different compression ratios than that goped engine. You see 41 cc @1200 rpm doesn't compare to a rc motor you have. The minor mods you made to the motor helped some but if you want more power then you need more HP. Try going up hill next time in the wind and see how fast you really are going. Down hill with the wind makes you go faster. I see the average speed and that is realistic! A different carb can add 3-5 mph , timing is fixed unless you modified it.???? I doubt anything. A tune pipe can add 3-5 mph on a goped engine.

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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Old 06-17-2017, 12:45 PM   #11
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Default Re: 61.1mph Official

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Originally Posted by king quarterscale View Post
Tire size and gear ratio play a part in speed and weight. The goped tire size looks to be around 10" and the gear ratio is about the same. Want more speed then double the HP. Don't expect double the speed. Weight will greatly reduce speed and gearing But again that goped doesn't do burn outs or pull wheelies with you on it.Further more the Zenoah rc engines run different compression ratios than that goped engine. You see 41 cc @1200 rpm doesn't compare to a rc motor you have. The minor mods you made to the motor helped some but if you want more power then you need more HP. Try going up hill next time in the wind and see how fast you really are going. Down hill with the wind makes you go faster. I see the average speed and that is realistic! A different carb can add 3-5 mph , timing is fixed unless you modified it.???? I doubt anything. A tune pipe can add 3-5 mph on a goped engine.

Boy, you are definitely proving yourself to be a real true idiot! haha! There is more to building stuff than throwing tons of money and parts at it, in hopes for a difference...

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! HAHAHA!

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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Old 06-17-2017, 02:36 PM   #12
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Default Re: 61.1mph Official

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.....

Click the image to open in full size.

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Old 06-17-2017, 05:05 PM   #13
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King you are a silver tongued Devil
You old smooth talker
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Old 06-18-2017, 05:23 AM   #14
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Default Re: 61.1mph Official

Quote:
Originally Posted by bobdudeguyman View Post
Boy, you are definitely proving yourself to be a real true idiot! haha! There is more to building stuff than throwing tons of money and parts at it, in hopes for a difference...

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! HAHAHA!

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....
I hit the numbers right on the head 100%. with the go ped 2 stroke engines are completely different beasts from a real car engine but the use the same principals apply. FACT:You would need to do more than just change a carb and some timing to get any more real power from that 2 stroke goped engine. I prove that as you didn't do anything to it with the engine specs. You would need to do a lot more work to get more power from a 2 stroke. Cosmetic improvements don't do anything. That's why you thought you built a bigger motor for your 5b. Fact You forgot the final ratio for the b5 which is 6.48:1. You multiply the motor pinion gear ratio 54/20= 2.7:1 x transmission gear ratio 48/20= 2.4:1 Final gear ratio 6.48:1 DUH. The idler gear is not calculated A stock 5b with a 23cc motor reaches speeds of 30 mph. So a stock engine has 2.5 hp and you more doubled that????; so the speed had to increase. If Hp didn't matter then you should be able to get the same speed with less ?????? Smaller size engines run faster to produce the power. SO stop trying to compare a rc engine to a real car engine. Hp is the only thing relevant when comparing any engines. That all that matters. I would like to see you build a gas motor with only RPM do 100 MPH since you think you can. I offered you simple solutions but it is very clear you think you have all the answers and HP isn't going to make any more power for you. FACT You contradicted yourself with your engine facts. HP dose make the difference! Which you can buy a bigger Hp motor for less than what you say you spent. So you will end up loosing the max speed your trying to chase. SO tell all the engine manufactures they
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! It's just like buying a kit and putting it together with upgraded parts.

Last edited by king quarterscale; 06-19-2017 at 07:01 AM.
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Old 06-18-2017, 05:27 AM   #15
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King you are a silver tongued Devil
You old smooth talker
Nitro you are a bronze tonged devil. You old pooper who gets it WRONG every time. Failed on the FID reverse and can't figure out how a check valve works on a gas tank.
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Old 06-18-2017, 12:17 PM   #16
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Originally Posted by king quarterscale View Post
I hit the numbers right on the head 100%. with the go ped 2 stroke engines are completely different beasts from a real car engine but the use the same principals apply. FACT:You would need to do more than just change a carb and some timing to get any more real power from that 2 stroke goped engine. I prove that as you didn't do anything to it with the engine specs. You would need to do a lot more work to get more power from a 2 stroke. Cosmetic improvements don't do anything. That's why you thought you built a bigger motor for your 5b. Fact You forgot the final ratio for the b5 which is 6.48:1. You multiply the motor pinion gear ratio 54/20= 2.7:1 x transmission gear ratio 48/20= 2.4:1 Final gear ratio 6.48:1 DUH. The idler gear is not calculated A stock 5b with a 23cc motor reaches speeds of 30 mph. So a stock engine has 2.5 hp and you more doubled that????; so the speed had to increase. If Hp didn't matter then you should be able to get the same speed with less ?????? Smaller size engines run faster to produce the power. SO stop trying to compare a rc engine to a real car engine. Hp is the only thing relevant when comparing any engines. That all that matters. I would like to see you build a gas motor with only RPM do 100 MPH since you think you can. I offered you simple solutions but it is very clear you think you have all the answers and HP isn't going to make any more power for you. FACT You contradicted yourself with your engine facts. HP dose make the difference! Which you can buy a bigger Hp motor for less than what you say you spent. So you will end up loosing the max speed your trying to chase. SO tell all the engine manufactures they
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 $505
6316 - 8.2hp CNC Ported Full Mod 30.5cc TR/OBR 4 Bolt Reed Case Engine - Full Mod Engines - Engines - HPI Baja, etc.

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! It's just like buying a kit and putting it together with upgraded parts.
So I'm assuming then, that everything you "built" you have spent years mining raw ore, and purchased a smelter to personally refine the ores into your custom type of alloy, and then bought an industrial machining facility, and you yourself did all the castings, forming, and milling of every single millimeter of every part, to your own licensed and patented design platform?

now THAT'S ****in funny!
Way to talk yourself into a dunce corner, dude! you should be a painter!



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

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Old 06-18-2017, 12:27 PM   #17
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Old 06-18-2017, 01:07 PM   #18
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Default Re: 61.1mph Official

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...

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Click the image to open in full size.

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Old 06-18-2017, 05:08 PM   #19
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Originally Posted by bobdudeguyman View Post
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...

Click the image to open in full size.

Click the image to open in full size.


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
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Old 06-19-2017, 03:17 AM   #20
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Originally Posted by Nitrocat View Post
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
King never met a link he wouldn't repost
Honestly, I really want to see what he comes up with! But, I'm not gonna hold my breath....that is, if I can stop laughing!



OMG...my sides hurt...Click the image to open in full size.

I honestly never thought I'd get this much comedic entertainment from a forum post with only 6 words and a single youtube link! Click the image to open in full size.

Click the image to open in full size. Click the image to open in full size.
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