Input on Slide throttle idea please!

[oldcorollas]

that mechanism felt very smooth, albeit with a fairly strong spring to pull it closed..
some types have many ball bearings to allow movement, and then have seals at the openings...

i imagine it is a bitch to have both free movement, reliable throttle closing, and good sealing (ie, better with an alpha-N type arrangement and a 3000rpm idle )

there seem to be a lot of the keihin? flat slide carby setups for spoontahs here.. going for 1-2K or so...

[river]

Hi,

What about using multiple iris's like the ones that open and close on a camera lens?

They open and close via a circular motion, which means you need to hook them on a link so they all open/close together, with a return spring to bring them back to the closed postion.

Mind you, like the slide throttle, I can't see all that effort providing much difference.

seeyuzz
river

[ed]

for all but crazy exotica the following should generally hold

few moving parts
low friction
low contamination
low maintenance
low failure rate
easy of construction
cost

[river]

Hi,

for all but crazy exotica the following should generally hold

few moving parts
low friction
low contamination
low maintenance
low failure rate
easy of construction
cost

And that is why the simple butterfly reigns supreme.

seeyuzz
river

[Billzilla]

for all but crazy exotica the following should generally hold

few moving parts
low friction
low contamination
low maintenance
low failure rate
easy of construction
cost

= Butterfly thottles.

[DigitalPho3nix]

Thanks for all the input everybody. While it makes for an interesting design challenge, the slide throttle has been binned for the moment, as too has the roller-type throttle.

I think I'll concentrate on my low cost 20v ITB adaptor over the summer break.

[brett_celicacoupe]

i think youll never make this system legal on a road car. you would get raped by insurance if you crash

youll have to do all the failure analysis and then find a willing engineer to approve it.


you might have more luck replicating the motorbike type throttle. since you dont need a needle like a motorbike, at WOT, the ovaled tube could be designed nearly flush