Lighten Flywheel for KF... how much ? - Page 2

skippy · 01-03-2006, 04:45 PM

Oooohhhh, I see know,
I thought the clutch did all that by its self, ie clutch in one part of clutch spins, clutch out both parts of clutch spin.

wouldn't that mean if you shave some of the fly off the clutch would now have to go in further to grab the fly, so you would need to reset the clutch cable thingamabob, yeah?

Rupewrecht · 01-03-2006, 05:13 PM

Well yeah it does. I stuffed up a bit

The 'clutch' bolts to the flywheel, but it's actually the pressure plate which bolts to the flywheel. Inside the pressure plate and inbetween the fly and pressure plate it the clutch, which does the gripping.

Go read this

http://www.novak-adapt.com/knowledge/clutches_etc.htm
Google is a wonderful thing.

CRA23 · 01-03-2006, 07:34 PM

that sounds way to light for a k8 fly i thought they were only like .5-1kg lighter??

boostedbatman · 02-03-2006, 04:49 AM

Quote:

Originally Posted by kfze

A K8ZE flywheel weighs around 11lbs. This would be the obvious choice to use since all Mazda K-series V6 engine parts are interchangeable.

I wouldn't sell my house over a bet on that quote
I have seen a lightened K8-ZE fly for sale before and it came to around 6.6kg (thats 14.5lbs) I believe they are somewhere around 18lb as standard, KF fly around 20-21lb and the KL flywheel tips the scales at 23 pounds
Yes the v6 flywheels are interchangeable which is why many KL powered vehicle owners do go for the lightened K8 unit.
Fidanza also do a lightweight 4.5kg aluminium flywheel to suit these applications

Ripper323 · 02-03-2006, 11:48 AM

Quote:

Originally Posted by skippy

Does a properly balanced flywheel do anything besides being heavy or light???

It would be advisable to get it balanced as if it is unbalanced it will create un-necessary wear on engine parts. A good way to see this is to get a bike wheel off the bike and attach a weight to one side and spin it. You can feel it wobbling towards where the weight is.
When balancing a rotating component there is two types of balancing, static and dynamic. Static is when it is still and is relatively easy, and dynamic is when it is spinning, and is done with a specialised machine. The higher the tolerances that are used in balancing, the smoother the part will spin, but it will be more expensive.

kfze · 08-04-2006, 04:42 PM

Some Updates :

I have just sent the stock flywheel to the machine shop to do lightening job.

We weigh the stock KF flywheel ; its 8kg.

So, i am going to shave around 1kg - 2kg off it. And also around 1mm of the stock flywheel will be shave off.

Gonna get it next Sat.

boostedbatman · 09-04-2006, 05:17 AM

You need to find a way to pop up some pics whwn its done

01-03-2006, 05:13 PM	#22
Rupewrecht Administrator Join Date: Mar 2002 Location: melb.vic.au Car: AZ-1, Astina Hardtop Turbo, BJ Protege, Beetle Posts: 16,525 View Photos By: Rupewrecht	Well yeah it does. I stuffed up a bit The 'clutch' bolts to the flywheel, but it's actually the pressure plate which bolts to the flywheel. Inside the pressure plate and inbetween the fly and pressure plate it the clutch, which does the gripping. Go read this http://www.novak-adapt.com/knowledge/clutches_etc.htm Google is a wonderful thing. __________________ jdmparts.rupewrecht.com Sourcing your not-quite-overnight parts from Japan WRECHT--\|--SLOWTEGE--\|--BEETLE--\|--SUBSTITUTE--\|--AZ-1

01-03-2006, 07:34 PM	#23
CRA23 Senior Member Join Date: Jan 2003 Location: Gold Coast, QLD Car: a helichopter Posts: 801 View Photos By: CRA23	that sounds way to light for a k8 fly i thought they were only like .5-1kg lighter?? __________________ Corners are just that much more fun with coilovers......

09-04-2006, 05:17 AM	#27
boostedbatman Manpink Crusader Join Date: Jun 2004 Location: Stafford, Brisbane Car: 1990 GD mx6 F2T, and soon I might drive the batmoobile once again Posts: 2,280 View Photos By: boostedbatman	You need to find a way to pop up some pics whwn its done __________________ The Batmobile as she used to be and now she hangs from a chain in the garage

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01-03-2006, 04:45 PM	#21
skippy Resident Dissident Join Date: Sep 2004 Location: Ole Sydney Town Car: Alfa 156 TS Posts: 1,197 View Photos By: skippy	Oooohhhh, I see know, I thought the clutch did all that by its self, ie clutch in one part of clutch spins, clutch out both parts of clutch spin. wouldn't that mean if you shave some of the fly off the clutch would now have to go in further to grab the fly, so you would need to reset the clutch cable thingamabob, yeah?

08-04-2006, 04:42 PM	#26
kfze Junior Member Join Date: Oct 2005 Location: Kuala Lumpur Car: CBAEP with KFZE Posts: 72	Some Updates : I have just sent the stock flywheel to the machine shop to do lightening job. We weigh the stock KF flywheel ; its 8kg. So, i am going to shave around 1kg - 2kg off it. And also around 1mm of the stock flywheel will be shave off. Gonna get it next Sat.