Twin Plate Or Single Plate Clutch

[camo86T]

Care to elaborate? Always keen to learn.

Edited 10/06/15 10:14 PM by camo86T

[gaz097]

I think that's where xtreme are so cheap as the plates are not sprung Centre. That would be one complaint I have is it sounds horrible at low rpm in 4th gear and above at high load.

[MA91CK]

It's simple maths mate. Say approx 20% loss. The higher the starting number, obviously the higher the number will be as a percentage.

20% of 100=20

20% of 200=40

You have 270 you might lose 50kw, but if you had double you're going to lose approximately double, so 100kw.

That's how he got that figure. Also as Aaron said, other factors such as torque and stuff also come into play, which may increase loss

[MA91CK]

It's just the inherent nature of combustion engines and drive lines, and decreasing reward via diminishing returns

[camo86T]

It's simple maths mate. Say approx 20% loss. The higher the starting number, obviously the higher the number will be as a percentage.

20% of 100=20

20% of 200=40

You have 270 you might lose 50kw, but if you had double you're going to lose approximately double, so 100kw.

That's how he got that figure. Also as Aaron said, other factors such as torque and stuff also come into play, which may increase loss

Not the maths I'm querying which is year 6 stuff

Just find it a little intriguing. I have 382rwkw on 98 tune and using 22% factor = say 466fwkw, therefore 84kw loss

But then I fill up on e85 and 438rwkw is apparently 534fwkw meaning I'm now losing 96kw...through the exact same driveline, so no more effort required to turn the wheels

If you put it down to all the inefficiencies in the driveline adding up then 22% factor makes a little more sense...can't help feel it would decrease with higher power though

Yes you would continue to lose more the more you made

But not at a flat rate

Which is sort of what arronm said

Edited 11/06/15 12:46 AM by camo86T

[MA91CK]

I understand what you're saying, as in why do you lose more power when you haven't changed anything in your driveline so it SHOULD only lose the same amount regardless.

But that's as far as my knowledge goes. Is that for some reason, the more power, the more losses you get via other factors. ( not your driveline )

[Ralph Wiggum]

Trq gives you the ability to do work.in this case work equals acceleration.

Increases the trq allows you to increase the work ie accelerate faster.

Increasing the rate at which the driveline rotation accelerates increases drag and frictional losses. Hence the more power you put through the driveline the more it consumes.

[camo86T]

Isn't it Nm that does the work and hp/kw how fast that work is carried out...

[Ralph Wiggum]

Correct,posted edited.

[camo86T]

So back on topic

Xtreme twin plate organic rated to 520fwkw won't give me the headroom I thought it would

But with the xtreme engineer's comments I'm confident it will do the job considering that most of the time I'll be on 98, plus I'm mechanically sympathetic so no clutch kicking in 4th etc

It will make noise under load at low rpm as per gaz097's comment

I think that's where xtreme are so cheap as the plates are not sprung Centre. That would be one complaint I have is it sounds horrible at low rpm in 4th gear and above at high load.

Would assume this wouldn't be so bad with an organic though

Just need to find somebody who's running one for their input and I'm about sold