o I have a stock clutch assembly, mcleod and spec in my garage. Decided to weigh them.*
Stock
Clutch - 24.6lbs*
Flywheel - 21.6lbs
Total - 46.2lbs
Spec 2+ with Billet Steel flywheel
Clutch - 23.6lbs
Flywheel - 20.8lbs
Total - 44.4lbs
McLeod RXT with Lightened steel flywheel
Clutch - 23.8lbs
Flywheel - 20.4lbs
Total - 44.2lbs
So to my surprise, these setups aren't much lighter than factory. I heard, mcleod with lightened steel was 9lbs lighter and aluminum it was 17 lbs lighter. Clearly, not true. Not even close.*
McLeod is light because the size of the pressure plate and discs. Being a twin disc, you can cover more surface area (more holding power) with 2 smaller discs versus 1 big disc.*
Also, I thought specs billet steel flywheel would be a few lbs heavier than mcleods lightened steel. But only 0.4lbs so that was a nice surprise.*
For the ultimate NA power guy, not looking to spend a ridiculous amount of money, imo go with a spec 2+ with their billet aluminum pressure plate option. Adds $289 to the price, but spec claims 7lbs less. Which is a HUGE amount on a pressure plate. $289 for ~10rwhp is a big gain in the na world. And also, an aluminum flywheel. Not ideal for drag racing but it'll work. Not sure how much lighter aluminum is versus steel, can't take everyrhing you read serious. There is also very serious lightweight clutch setups out there. But, they aren't cheap. But if I had to guess, I'd say 3-5lbs.*
Hope some of this info helps.*
Stock
Clutch - 24.6lbs*
Flywheel - 21.6lbs
Total - 46.2lbs
Spec 2+ with Billet Steel flywheel
Clutch - 23.6lbs
Flywheel - 20.8lbs
Total - 44.4lbs
McLeod RXT with Lightened steel flywheel
Clutch - 23.8lbs
Flywheel - 20.4lbs
Total - 44.2lbs
So to my surprise, these setups aren't much lighter than factory. I heard, mcleod with lightened steel was 9lbs lighter and aluminum it was 17 lbs lighter. Clearly, not true. Not even close.*
McLeod is light because the size of the pressure plate and discs. Being a twin disc, you can cover more surface area (more holding power) with 2 smaller discs versus 1 big disc.*
Also, I thought specs billet steel flywheel would be a few lbs heavier than mcleods lightened steel. But only 0.4lbs so that was a nice surprise.*
For the ultimate NA power guy, not looking to spend a ridiculous amount of money, imo go with a spec 2+ with their billet aluminum pressure plate option. Adds $289 to the price, but spec claims 7lbs less. Which is a HUGE amount on a pressure plate. $289 for ~10rwhp is a big gain in the na world. And also, an aluminum flywheel. Not ideal for drag racing but it'll work. Not sure how much lighter aluminum is versus steel, can't take everyrhing you read serious. There is also very serious lightweight clutch setups out there. But, they aren't cheap. But if I had to guess, I'd say 3-5lbs.*
Hope some of this info helps.*