Leccy techie help needed for a little project....

[Xenocide]

Lol. It'll be mounted outside the airbox anyway ;)

[tony.mon]

Never mind too big; how heavy is it?

Realistically, I think it might be over engineering, really, unless we use just one with a linked mechanism to lift both with just one motor.

Which might be the way to go.....
Hmmm.

[Xenocide]

I wish i'd thought of that ;)....

[tony.mon]

I was still working on having a dedicated motor for each stack because of the strength of the motors you had used. Now we have something stronger, the linked idea seems possible.

I'll maybe have a play with an airbox or two tomorrow; I have a day off.

[VTRDark]

I'll maybe have a play with an airbox or two tomorrow; I have a day off.

Don't forget to take pics.

(:-})

[Xenocide]

I've got a video of the new stepper uploading.. slow youtube. It's very strong.

'ere she is:

[youtube][/youtube]

[Xenocide]

Motor specs (with dimensions): http://www.interinar.com/public_docs/PK266-02A.pdf

[VTRDark]

Wow!!!! I'm impressed with the power in that. That's incredible. This little project is coming along nicely. Well done chaps.

(:-})

[Xenocide]

Wow!!!! I'm impressed with the power in that. That's incredible. This little project is coming along nicely. Well done chaps.

(:-})

Yeah they're very torquey for their size + power input (this one runs off 3.6V too (i'm running it at 5 though - don't tell anyone)).

Trying to find something I can chop up so I can get some wires onto the sensor without solder.. hmm. I've already chopped up a cisco console cable this evening

[VTRDark]

some small spade terminals will do the job. But if you want to solder wires on then do so, It's not as if solder cannot be removed!

(:-})

[Xenocide]

some small spade terminals will do the job. But if you want to solder wires on then do so, It's not as if solder cannot be removed!

(:-})

I thought that, then i checked my collection of random spade terminals and found....



...wombles all

Trip to halfrauds tomorrow then

[VTRDark]

Just solder them on. Bit fiddly getting the iron in there though. and the anoying thing is I could have chucked some in the envelope. I got hundreds here.

(:-})

[bazza696]

I had an idea about the mechanisum for the trumpet moving up and down and thought I would pass it over you guys.

I presume you are going to have a tube on the carb inlet and then the trumpet on the top sitting either over the top sliding over the outside of the tube in the carbs.

Fit two rivets for this crude example in the tube at 0° and 180° then dremel two spiral slots in the trumpet, this is where the rivets go, then rather than a fiddle assembly to lift the trumpets, you are twisting the trumpet which will then allow it to lift. So you could fix the motor to one of the tabs on the trumept to pull and push it, of fit a mechanisum similar to what I have in my RC powerboat to turn the rudder.

As the stepper motor is strong then you don't have to worry about having springs the return it to normal.

I hope I explained this well enough for you to get the idea.

Give us a call Tony if you want to discuss further.

[Xenocide]

then rather than a fiddle assembly to lift the trumpets, you are twisting the trumpet which will then allow it to lift. So you could fix the motor to one of the tabs on the trumept to pull and push it, of fit a mechanisum similar to what I have in my RC powerboat to turn the rudder.

I think I get you - like a flexible link that will allow up + down travel to go with it's side to side.

Reading this: http://www.sportrider.com/bikes/146_090 ... to_07.html

They just take the top off the trumpets at high rpm... Two things from that...

1) Can we just take the top off?
2) We do it via TPS... How does the VTR sense RPM for the speedo? Crank sensor? I should be able to figure out the speed of that and use that data too.... hmm.

I've played with an old abs sensor before and managed to get it to count the pulses and figure out a speed (wasn't calibrated) but it worked...

Also I was thinking, the TPS uses the bikes's power + ground then the computer figures out the throttle position by the difference between what's coming back off the wiper arm of the TPS and it's 12v+ line. Normally that wouldn't be a problem because you know what your input voltage is but with a bike it varies with the rpm of the motor (due to the stator - 12v-15v pretty much) so I'll need to find a way of passing the controller a reference voltage as we'll just be tapping into the TPS value rather than supplying our own known voltage.

Bloody complicated sometimes!

[oldbikeman]

You are right the Storm is very poor in the low torque department.The problem is caused by the over large inlet ports . The ports in Mitsubishi V6 6G7 car engines were nearly identical and so were the problems.Making the ports narrower cured this and also it raised top end power.I thought of adding reduction sleeves and using the smaller carbs from the XL model to raise gas speeds in the ports at lower revs.This would also lower fuel drop out and help combustion and mpg.The cams from a XL would also help but you would have reduced about 10 mph from the maximum speed .Power else where would be much improved.Bell-mouth lengths as you know will improve air flow and reduce spit back and some engines are useless without them but generally only help as a smoothing out effort.