Topic: cb750A / now E! drag bike dreaming,

[Sam Green Racing]

The electric conversion kit for a jr dragster runs 7.90's in the eighth mile reportedly at 50% power. Costs $9167.92 I'm not sure if it runs a clutch, there is a jackshaft for sure.
  I can't help wonder if a conventional 1500 amp gel battery pack in a suitable container that may be swapped between runs would save a large chunk of money.

Don, EVs don't need a clutch or gearbox.
When the bike or car is at a standstill, the motor is not running, it only starts running when you open the throttle, so no need for a clutch.
In respect of the gearbox, EVs have that much torque, they will pull from a stand still to whatever speed they are geared for.
The bike I had was geared for 100mph, twist the twist grip to quickly and you end up being spat off the back.
When it reaches the speed that it is geared for, the acceleration stops that quickly, it's like hitting a brick wall.

Sam.

Sound's a bit like my mobility scooter.

Cheers,
Brian

Spot on Brian, hahahaha, but the bike I had, although it looked a bit strange, would rip your arms off. haha.

Who's the old guy?

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Have you forgotten me already Mark ? hahahhahahahaha

[Don R]

 No clutch or trans in the E. jr dragster. There are companies selling e bike kits cheaper and maybe more advanced than the jegs.

[754]

it looks like BST carbonF wheels on that beast.. no wallet shortcuts there.,

[dusterdude]

Hell no sam,you're my main man.

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[dusterdude]

There is an old guy in that photo? I see a strange bike and pair of young ladies...

Yea,sam seems to attract all the hotties

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[POPS 911]

Talked to the shop guy at the big  fork lift sales and service in Columbus, Ohio a used  motor $50- $100 and with a clean up and new brushes $200 and have you a drive gear broached to fit the out put shaft or a short jack shaft you would be ready to win quietly. He suggested to welding a round steel plate on out put shaft and drill holes and tapped to change gear for right balance 1/8 to 1/4 mile races = their machine shop can do that work and I have many front gears for the 750A. So with a 80 lbs. electric motor much lighter than a heavy 750A motor and no need for gas tank as I have a new one piece FRP body from the old days. Good number for this bike would be 110V.
 POPS BK911
PS. Good on YOUTUBE and see the guy who did this elect. motor and put it in a Geo Metro thru the cars transmission.

[Don R]

 I have too many bikes but a friend has a 76 750A for $500 runs and rides, 20K miles been to Alaska and back. Has a windjammer and vetter bags, needs an exhaust but I have a couple 4-1's to choose from. I'm not sure if we decided what other headers fit an A. 
  An easy drag bike starter kit. I have k or f carbs, headers and a shinko rear tire already mounted on an A wheel. 

[Medyo Bastos]

The dohc exhaust works if you need to run your exhaust underneath, otherwise a k exhaust works fine.


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[TurboD]

here is my auto that I worked with for a while a couple summers back, I haven't had it out at all this year.