Piston diameter?

[Parthe]

Thanks for the reply R-III-R, this just goes to show that everyday is a schoolday.

While I was willing to be fast-and-loose with the capacities (a "2300 is close enough" approach), using the correct names is fairly crucial, especially if I've mixed up the diameter and the height (bore and stroke?).

> Bores & strokes (diameters or radii, & heights)

So the bore is the diameter of a cylinder and the stroke is the height? I know "Height" does not equal "Stroke" but for the sake of this equation it amounts to the same, right?

 

[Mongler07]

So the bore is the diameter of a cylinder and the stroke is the height? I know "Height" does not equal "Stroke" but for the sake of this equation it amounts to the same, right?

Yes but Stroke is the same as height, Well there is a little gap for compression. Stroke is the distance the piston travels, the same as the hight of the volume equation.

 

[R-III-R Turbo]

Thanks for the reply R-III-R, this just goes to show that everyday is a schoolday.

While I was willing to be fast-and-loose with the capacities (a "2300 is close enough" approach), using the correct names is fairly crucial, especially if I've mixed up the diameter and the height (bore and stroke?).

> Bores & strokes (diameters or radii, & heights)

So the bore is the diameter of a cylinder and the stroke is the height? I know "Height" does not equal "Stroke" but for the sake of this equation it amounts to the same, right?

No you're right, height of a cylinder is effectively the same as the stroke (swept volume of a cylinder) for volume or displacement calculations.
FYI combustion chamber volume does not count as engine size/displacement.

Google has a handy calculator. Here I used the bore & stroke dimensions from Triumph for the 2.3L bike to calculate overall engine displacement (2294cc)
(note the bore & stroke are in mm so you have to convert that volume to cubic centimetres by dividing by 1000)

 

[warp9.9]

101.6mm (Rocket III)
110.2mm (Rocket 3)

It should be a filter question when signing up to the site!

I would fail
Except I do have pistons laying around and measuring tools.
Although I probably forget what I was doing and end up raiding the refrigerator

 

[R-III-R Turbo]

Hey warp how you doing
Long time no chat. Good to have you active on the site

 

[warp9.9]

Hey warp how you doing
Long time no chat. Good to have you active on the site

I guess it more like semi active.
I'm still alive . Thinking about changing my phone number so my cardiologist quits calling me.
I shouldn't have ignored all them messages about my extended warranty expiration
Its hard getting old, especially when one had such a good time getting there

 

[R-III-R Turbo]

I guess it more like semi active.
I'm still alive . Thinking about changing my phone number so my cardiologist quits calling me.
I shouldn't have ignored all them messages about my extended warranty expiration
Its hard getting old, especially when one had such a good time getting there

Sucks to be you
Are you still wrenching on Rockets or what do you spend the time on these days

 

[warp9.9]

Sucks to be you
Are you still wrenching on Rockets or what do you spend the time on these days

No I really don't have energy to do that.
Getting old blows add heart disease and well I'm thinking it blows faster

 

[1olbull]

No you're right, height of a cylinder is effectively the same as the stroke (swept volume of a cylinder) for volume or displacement calculations.
FYI combustion chamber volume does not count as engine size/displacement.

Google has a handy calculator. Here I used the bore & stroke dimensions from Triumph for the 2.3L bike to calculate overall engine displacement (2294cc)
(note the bore & stroke are in mm so you have to convert that volume to cubic centimetres by dividing by 1000)

But, 795cc x 3 = 2295cc?
Heheheh just yanking . .
Good info!

 

[R-III-R Turbo]

But, 795cc x 3 = 2295cc?
Heheheh just yanking . .
Good info!

Actually 795cc x 3 =2385cc

Think you mean 765. But rounding factors before entering in a calculation is poor practice, that means double rounding and the end result is inaccurate. The Google calculator just rounded to present the answer but if you look further down and also over at my calculator it says 764.52 which is more accurate, and gives 2293.56cc for the 3 cylinders' total.