Great project. Try to develop a v twin engine with 59x54.5mm cylinders. I believe that you can extract at least 60 hp and if you spin at high rpm something even close to 90 hp.
That is idiotic you are going to mess up the windage in the engine if you do that. Put the clutch on the fly wheel and use a jack shaft to whatever speed tranny you want.
Female thread leaves room for consumer to drill/tap new threads when they strip/cross thread the bolt. With a stud and nut, if it gets cross threaded it’s not gonna be an easy fix. Just my opinion
Never got my spacers for pull start an No I dont want to cut or grind that much, But im intrested in straight cut gears for it tho, Send me a Set to Try out on the Streets, Sadly I didn't Purchase a Crank for Big Saw 👽
Any update on when you're shipping out completed cranks??? I ordered a crank in Feb 2024 it is now July 2024. I have emailed you asking for an update, messaged you on various platforms, even texted you. Seems like you are too busy to even respond to clients. Once I receive my crankshaft, I'll never bother you again!
@@jmrides777 (ADD) Jim, Always been this way , but just from video is what I got, funny when they Sponsor someone To Win, Why all of a sudden an intrest in helping someone Win instead of making the product better in first place, All internet look at me Drama lol anyway youll get it but not when you want it 👽👍🏻
If your Lucky you will get one because they are preorder but this new venture out to have new cranks made by a factory Sounds cool as long as they are Quality, Ill get a few 👽👍🏻
Very exciting shift to R and D on the motorized bike side. Good luck with selling your machine tools. Theyre like coffins. You sell someone one. I've got my eye on some but the 3 phase and how clapped out affordable used machine tools are, its way out of reach.
It is an interesting idea but I believe it would simply be better to use a mid drive kit and make it a mid drive hybrid. Because when you get in to striping mid drives down and trying to make them work with an transmission the issue of ware and tear and even extra parts need you in the 2500 to 3000 range for an engine with an off place mid drive then on top of that still nèding two throttles to control both or one or each other you can still use the mid drive battery to add and electric start and even lights. So that my input I would love a vtwin but hybrid vtwin sounds like it could have issue especially seeing how several ebike mid drives and hubs have caught fire recently it something to consider. Because it dose come with an new unknown risk factor
Whats the plan for recharging... probably going to have to pick one or the other an e bike kit sounds cool i got a bmx i want to power but it wont allow an engine
I like it but when strong hub motors are available so easily and cheaply I have a hard time seeing this having a market large enough to justify tooling. These drivetrains are typically called parallel hybrids because the gas and electric motors are providing motive force at the same time. Another guy is curios why it cant be used to charge the batteries. The simple answer is because lithium batteries are fussy and can combust if charged wrong and the one way bearing on the motor shaft prevents it from being back driven. What about a range extender with electric only drivetrain? Inefficiency at higher speeds. Theres about 60-85 percent efficiency in generators, then another 75-95 in the motors. This ia fine at parking lot speeds where fractional hp is used, but above 15mph the wind givea more resiatance than the ground. And again battery problems. These small honda have such nice torque curves that it makes more sense to use it to move the bike It gets very expensive making all the systems play nice. How many millions did toyota and chevy put into the R and D of series parallel drive trains? More than a one man machine shop can afford. Using a gx50 to top off a lead acid battery can work, but it requires relatively complex custom controls to make it all play nice.
thanks alot for all that, tons of great information i didnt know. im going to lean on my gut feelings about what i would want as the ideal powertrain for a bicycle. my specific use case and all. im moving from hilly city that tolerates loud 2 stroke bikes to coastal flatlands that wont be as tolerant of 2 stroke bicycle. I want to be able to pull a trailer long distances on trails that only allow e bike. id also like to take long distance trips. hub motors could grow on me, but for now im pretty bias towards mid drive, if youre already set up to do a gas mid drive, you might aswell go dual drive imo, tooling cost aside.
@@ryandarrah4247Cruising with gas and using electric off the line and up inclines will keep that battery pretty full. It sounds like it should do what you want it to. The cars and cameras guys struggled with getting the gas throttle and the electric to go at the same time but there's a simple solution: two cable throttle, one pulls a cable operated potentiometer and the other goes to the carb. Twist and both go in the same proportion. The ratio of one to the other could be tuned with barrel adjusters. And with the dual throttle you could use a motorcycle/atv ignition switch with the starter button, either the switch being in run or the button being pushed allows the signal to go to the controller. Quick little on/off for electric and a convenient method for short bursts. Electric is still controlled by throttle position but the handle bar switch makes it easy and quick. No messing around with a left electric and a right gas, or trying to use both with one hand.
@@ShinyUmbreon765 another great comment, ill need to watch that episode of cars and cameras. i would use thumb throttle twist throttle combo. manual clutch requires independent throttle for clutch engagement ( quick flick for starting, and engaging the clutch at low speed) a kill switch will come in handy. my concern is this: how much % difference is the free rev electric motor speed vs. max rpm at lets say 30mph running 2k+ watts and a phase runner. if its very high like 50% more then it may restrict gearing combinations between gas and electric to avoid events where ev wheel spin in mud would blow up the gas engine from over rev.
I see what you mean. Off road, independent control is more useful than a fixed proportion of gas to electric from one throttle, even if you could switch between gas only, electric only or gas+electric with a three position switch. A lot of ebike guys running 2wd will use a left throttle and a right throttle and balance the two manually based on riding conditions. Some guys just sync them up with a rear bias. Some have made little arduino setups with tachometers on each wheel and the throttle will dial back on the wheel that's spinning faster. You bring up a good point about getting the electric and the gas to play nice outputting to the same spindle. For paved roads I like the idea of the gas geared for speed with the electric geared for torque, but getting them to play nice with a big difference like that requires more complex controls and more complex mechanicals. On the motorized bike forums a guy did get two pocket bike engines, one geared low and one geared high, to play nice. Each engine powered a different wheel. He says he rolled off one throttle then onto the other. Also read about a series hybrid build where a 25cc two stroke powered a generator that topped off a lead acid battery pack. Not very sporty and range was still based on battery capacity but it did extend it quite a bit. I ought just send you emails at this point. 😂
@@ShinyUmbreon765 i actually believe mechanically and controls wise it will play nice. im really just concerned electric will loaded spin fast enough to blow up the gas engine, doesn't appear t be the case, it looks like their power drops off sharp enough. also appears hub motors are not really suited for hybrid use because they are not efficient at low speeds where its needed most. starting a gas engine from astop would be abusive to the hub motor and battery. as for charging thats could be a 3rd electric motor with a meachincal pto set up, maybe a mechanical switch and dual batteries, charge one bank, use another. also perhaps an ac inverter set up for generator use
why would back driving the motor and being able to charge the battery add utility? as far as i know most users with regen avail disable it because it causes problems and doesn't effectively charge the battery. without gas e bike battery typ can last an entire day of riding, with a gas addition it surely will last all day. why not simply charge the battery when home? back driving would make the bike slower when in gas only mode.
@@ryandarrah4247 regen braking in my opinion is done wrong, shouldnt come on soon as you stop accelerating, should be just part of your braking allowing you to still coast. and it is that ability to recharge on the go which makes having a smaller battery make sense.
@@jamessssssssssssssssssssssssss@jamessssssssssssssssssssssssss Not how lithium batteries or generators work. Lithium batteries have to be charged carefully and require relatively complex charging circuits. Nimh batteries can be charged much easier but also get worn out much sooner unless a proper bms is used. That only really leaves lead acid, and that obviously has weight problems, much lower capacity than rated if actually running any useful amount of amps. If you ran 10 amps out of a 10 amp hour rated lead battery you might get 3-3.5 actual amp hours out of it.
good point, ive had hub builds, i dont like how they feel. im definetly in the mid drive only camp. you can mess with gearing and weight distribution feels right. also weak axles, fragile wires where they feed into the axle, annoying tire changes... but hub builds do fundamentally fit the bill.
@@Op1zilla i hear ya, im not leaving 2t, im just not dumping all my r&d efforts into 2t rn, ill still come up with some stuff, tensioner, super bb pin, true stand have all been recent. i want this motor on an overbuilt tandem 4-5' wide tire bike, with a trailer and full camping set up.
@ryandarrah4247 exactly what I need one for. I have almost everything to build a camper for a bike. However my bikes been reinforced and I probably wouldn't have enough room for the electric motor.
that could have been bad. I never did trust those rigid thin triple trees. It's nice to see that you are alright. Similar happened to me. My rear axle snapped at 45mph just after slowing down from 60mph; half of the axle fell out and the wheel started violently wobbling about a foot side to side so I took it off into the grass. That is when the wheel shot to the right and the front wheel shot to the left. It slingshotted me highside into the ground on my right side. I walked away from it.
I have searched EVERYWHERE..I CAN'T FIND to have high quality breakages..could you put links for that..as much to have it liquid but also original but high quality breakages RANGE..AND I LOVE YOUR VIDEOS 1000 THANK YOU for your experience
Great quality engine, terrible business practice thou. Have two engines, love them very much, still will bitch slap you when we met. You pissed off my mother. And I would stretch that Piaggio intake further.
I have a custom engine that needs built brother. We need to talk. High and low end power through and through. I will give you the plans if you build me one🤙🏻
This is the first time I've viewed any of your videos and am ecstatic to see your ideas and know I and many will be able to purchase a well built engine 2 or 4 stroke that will be far more reliable and durable!
What you need is more employees. I will help you out and work for you . All that I want for a payment is a couple special motors built for me. I need a complete billet titanium 125cc stage 6
