We need a new invention

It took many years to get a lift to put a motorcycle on to work at a comfortable height.
It would be great to have a carburator DYNO.

It would be great to have a machine you could put a carb on and get all of the adjustments and jets dialed in and then put the carbs on the motorcycle.

I do not know if a flow bench would have what it takes to do that.

 

you would have to be able to simulate the draw of a running engine so theoretically you would need an engine that couldn't fire off but functioned like it was running... sounds easy enough..........

 

An engine is just a giant air pump, so all you should need is a flow meter and a sensor to detect the fuel concentration in the air flow. However, I think inefficiencies in your unique engine make a carb. dyno needless and/or pointless. All the jetting charts of all the manufacturers take into account boatloads of factors and help you dial in your carbs. Then you put them on and realize that your particular engine needs one or two sizes down.

Jose

 

:heh: :heh:

 

A friend of mine engineered and makes this. Yes that's his daughter in the 1st site. No you can't have her. This is his site. Top link shows starter and daughter.

http://www.solodynasystems.biz/solo_dyna_systems_starter_.html

http://www.doczintl.biz/docz_international_solo_pro.html

That's his Arimachi (sp) that he just quit racing. He's like 63yrs old.

Here's a photo of the dual starter. He also has a single starter.


He was working on a modular plug in dyno addition a few years back with some grant money. Long story short it got shelved for awhile. I just talked to him last week and he may start back on it by himself. He lives around the corner from me.

He had plans to build a model that goes on to a motorcycle bench/table for just what your looking for. See below With your knowledge you could a least rig one on you mc bench and run the bike to do carb adjustments, There would be no drag like a dyno provides. Though that wouldn't be to hard to make I would think. Just a larger water impeller with a tank to cool for a load. If you want to talk more about it, contact me off line.

Other wise you'd have to build a flow bench for the carbs. They are nice BUT you'd still have to tune them to the engine. That's where this would come in. Or just do the whole thing with something like this. Can't get any better tuning than with a running motor dyno style.

Look at the bottom of the2nd site it shows his proto type for the mc bench. Here's one photo of it.

 

you mean this girl on this page:
DocZ International Solo Starter

that pic is lousy and you can't even really see her.........

interesting product though, could be of good value to a lot of people.

 

BTW, the .com address fails to load, .biz works fine:

DocZ International Manufacturer Solo Starter Systems

 

Thanks fixed it. Don't know what happen. They are basicly use in AHRMA vintage bike racing to start their bikes instead of trying to bump start all the time.

 

That starter looks like a great invention for someone fielding and teching. their own bike.

You know, they have a dyno. program that works with your smartphone. One good one is called Dynolicious. I recall a magazine review where the phone calculated HP within 3 and torque to within 3 of a traditional dyno. I have also seen some reviews and their numbers are good, showing curves for both. Should be possible to use that to tune. I honestly question if us grease monkeys even need traditional dynos. anymore if this technology works as expected. Only hardcore racers would really need the minutiae of the whole hp/torque curve and sensor feedback.

Jose

 

As good of an idea it may be, I don't think it would work. I was allways taught that every engine, no matter how similar or exactly the same by tolerances it may be, is different as a snowflake. This would therefore make it mandatory to tune and balance the carbs while installed on a running engine to get it right. Granted I'm sure you could get it close with some sort of vacuum rig but not every cylinder in any given engine is going to suck just as much air or run just as efficinetly as it's neighbor or it's sister. I allways figured that's why you started with the proper jets and did the fine tuning from there once installed and running.

 

Simple carb adjustments ?? Just use standard jetting setup, best place to start.

 

I'll toss this in, since I didn't see it mentioned... One of the significant contributors to the intake system is the airbox (assuming you're not running individual filters/stacks), and everything in that path will have an effect on carburetion. So this 'carb dyno' would have to allow for a complete intake system to work - if the other considerations were acceptably resolved.