Gearbox Drop Part 9 - In You GO!

Beefed up stock clutch. Uses a new chro molloy pressure plate, same diaphram and outer cover.

i am using a kevlar clutch material,  more expensive than ceramic. but it came recommend for spirited track and a daily driver

below is photos of a clutch alignment tool that trys to centre it withint the clutch cover.
takes a bit of practice to get use to the config of it





i haven't driven yet but i have tested the clutch pedal. feels the same as stock.
can't check engagement though, no starter motor or exhaust yet.
clutch cover bolts i believe were 23NM, I also used high temp loctite. and do them up in an opposing pattern. slowly bringing up to torque spec

Clutch Mechanics








































Additional Info:
i sent my oem to get modified.
oem was from Kenobi - around $450-500AUD
then another ~$400 or so to get it modified, this was all done via Extreme. I posted it over to SA - Gavin
all up it took a couple weeks.
I went a Kevlar disc over ceramic. I believe i am the only with this? hence it costed a bit more for RnD
Read about Kevlar here: Kevlar Disc
He was still in development of the lightened flywheel... As of mid 2012 he now has a lightweight flywheel.
Bonalume does a lightweight kit but you must use there clutch as well.

No idea what a Kevlar kit off the shelf costs. I do still have my OEM clutch disc, if anyone wants to reuse it with a rebuilt cover...
OR i can probably get my old cover rebuilt and add the new clutch disc to it...but you will have to reuse your old throw out bearing/clutch fork...mine was in pretty good nick...it did get cleaned and re-greased when i did the DiY LSD install.

Additional Weight Info:
Stock Clutch Assy = 12kg
Stock Flywheel  = 6.7kg

Lightened Clutch Assy by ColtSpeed = 9kg

Lightened Flywheel by ColtSpeed = 4.6kg

By ColtSpeed Clutch

Crimping pressure -> 143%
Torque clutch design  -> 150%
Corresponding torque (catalog value) 21.4Kgfm  -> 32.0Kgfm -> 150%
Clutch pedal depressing force -> 123%


Some info i got from the Colt Speed Clutch

※ Notice of Work Please read the instructions that come with working before. And contains an important announcement. The excerpt shown attached below the important part is at the same time please do the following genuine replacement.

Starting from Genuine Parts required (Please do not think durability reuse) flywheel bolts ·

Genuine part Md008839 [Flywheel Bolts (M12 x 26mm)] @ ¥ 230 (tax) number five must release bearing
· ASSY (including Hawk) 2960A042 [clutch release module] Genuine Part @ ¥ 6, 850 (excluding tax) quantity 1
• Drive shaft oil seal genuine Part Number 2960A032 [oil seal diff case] @ ¥ 2,400 (tax) number 2 must
· Farukuramu (plastic pivots) 2960A031 [FULCRUM,CLUTCH RELEASE FORK] Genuine part @ ¥ 1,050 (tax) number one need

5 Part Numbers Include:
MD008839 Flywheel bolt - Five - ¥ 230
2960A042 Release bearing ASSY - One - ¥ 6,850
2960A032 Drive shaft oil seal - Two - ¥ 2,400
2960A031 Fulcrum (pivot) - One - ¥ 1,050


However i didn't replace my flywheel bolts @_@