Why are some clutches much heavier than others?
Why are some clutches much heavier than others?
Author
Discussion

Leicesterdave

Original Poster:

2,288 posts

210 months

Tuesday 18th May 2010
quotequote all
Had a 2006 A3 before the MINI and the clutch was as light as a feather. You'd expect a MINI to have a light clutch but it ain't!
Any particular reason?

TheEnd

15,370 posts

218 months

Tuesday 18th May 2010
quotequote all
sometimes it's down the the leverage and mechanics, but it also can be high clamping forces on a smaller clutch to allow more torque before slipping, with going to a bigger diameter

Ry_B

2,256 posts

231 months

Tuesday 18th May 2010
quotequote all
Why do some cars handle better than others?

Ozzie Osmond

21,189 posts

276 months

Tuesday 18th May 2010
quotequote all
1. Clamp load - how tight the clutch has to spring shut in order to handle the engine's torque.

2. Leverage - how much pedal travel is acceptable to actuate the clutch pressure plate through the required distance.

3. Cable or hydraulic - not a big deal in itself but depends on total system design.

Leicesterdave

Original Poster:

2,288 posts

210 months

Tuesday 18th May 2010
quotequote all
I think I roughly got that, thanks!

Big_Dog

995 posts

215 months

Tuesday 18th May 2010
quotequote all
An omega spring makes a huge difference. I had one break on an old 911 and needed both feet for the clutch.

Boosted LS1

21,200 posts

290 months

Tuesday 18th May 2010
quotequote all
Ry_B said:
Why do some cars handle better than others?
Don't know, can you enlighten us?

cottonfoo

6,053 posts

240 months

Tuesday 18th May 2010
quotequote all
Big_Dog said:
An omega spring makes a huge difference. I had one break on an old 911 and needed both feet for the clutch.
Old 911s feel like they need both feet as it is smile

hairykrishna

14,528 posts

233 months

Wednesday 19th May 2010
quotequote all
The one on the 928 is very light, whereas on my Aero it's incredibly heavy and they handle similar power. I think the fact that it's basically two in line on the 928 reduces the clamping force required.