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F1 Racing Stage 4 Clutch & Flywheel Kit

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4.4K views 12 replies 6 participants last post by  dmg210  
#1 · (Edited)
Hi guys,

Any thoughts on my $400 purchase? Would anyone recommend additional parts for the install?

The F1 Racing Xtreme® pressure plate is made from the forged ductile iron (3X stronger than the conventional cast iron pressure plate) to ensure consistent clamping force and the extra long life. The 5 puck disc features high capacity sprung center hub for a precise and non-abrupt clutch engagement. The 5-puck copper ceramic (also known as 'MIBA') disc features high-coefficient friction pads that are resistant to slippage and burst. The F1 Racing Xtreme® pressure plate features special single diaphragm design to increase clamp load. It features induction hardened diaphragm, CNC machined castings, stronger drive straps and rivets. F1 Racing Xtreme® pressure plate provides smooth and precise feel with easy modulation. All F1 Racing pressure plate is load tested on a special testing tool for quality assurance.

F1 Racing Xtreme® FRX300 Clutch kit and Flywheel package includes:
F1 Racing Lightweight Chromoly Flywheel
•F1 Racing Xtreme® Heavy-Duty Pull-Type Ductile Iron Dual Diaphragm Pressure Plate
•F1 Racing 5-puck sprung copper ceramic disc (8-1/2", 20 spline)
•Release Bearing
•Alignment Tool
•Installation Guide

Horsepower Rating: 370 HP / Torque Capacity: 349 ft/lbs

F1 Racing Lightweight Chromoly Flywheels are made from 4140 one-piece forged chromoly steel. They are specifically designed to reduce weight and inertia for better engine response. Most incorporate special design features to enhance the air flow to improve the cooling of the clutch. The ring gear teeth are milled onto the flywheel unlike an aluminum flywheel where the ring gear is pressed onto the flywheel which has the possibility of separating from the flywheel. All F1 Racing Chromoly flywheels have passed engineering tests to 12,000 rpm.

•Ultra heavy-duty and weighs only 9.6 lbs
•Meets or exceeds SFI 1.1 specification
•Made from 4140 chromoly steel (2X stronger than billet steel)
•F1 Racing Lightweight Chromoly flywheels incorporate special design features to enhance the airflow for improved clutch cooling
•F1 Racing Lightweight Chromoly flywheels work with every clutch including Exedy, ACT, Fidanza, Clutchmasters, and other OEM clutch kits
•CAD designed, CNC machined and computer balanced

** I'm going to repost the original photos because of those PhotoBucket w*kers. *

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#2 ·
That clutch disk is boss. I have an SMT twin disk clutch kit that I'm dying to try out. SMT is a great company.
 
#4 ·
looks great, but only one way to really find out if it will hold it.. with something as vital and cheap as a TOB i would recommend getting an oem one, but thats up to you. Let us know how it works, i love my XTD clutch and that was cheap as well.
 
#5 ·
$400? Flywheel, disc, pressure plate? Hope it works for ya, I have to wonder though, $400 is about what companies like South Bend and Clutchmasters charge for just the clutch assy, good luck
 
#6 ·
Yep $400 all in plus shipping to the UK for me, crazy prices :) I have also ordered the phantom grip lsd which I'm going to get installed with it. Not 100% sure about fitting it to the 5 speed box as I've heard others have had issues but hopefully its possible.
 
#7 ·
I would get just the flywheel and get an ACT 6 puck kit for about the same price.
 
#8 ·
Yea that TOB isn't OEM, it doesn't say Valeo on the back of it. Definitely get an OEM one.

For the PG, I think they did actually make a 5 speed one, but it's possible to make the 6 speed fit by grinding it down a bit I think. There was a thread on here about it.
 
#9 ·
The clutch will probably hold up, but I bet the snap ring wont. They really need to address the issue of the snap ring busting. IMO the tob should be fine.
 
#10 ·
Well it is an OEM pressure plate.
 
#12 ·
Turns out this kit is pretty f**king good!

I just thought i'd post back after running this combo between 2013 and 2018...
(If you haven't seen my other threads, i installed this on a 2.0L Beta-II Turbo making around 350whp at the time.)

I had the clutch, flywheel and pressure plate cryogenically treated before install.

I did around 26,400 miles on this setup and it still had some life left in it. I did numerous track days including the Nürburgring and went to the drag strip once or twice a year. Generally speaking i beat on it a fair bit and it held the torque just fine.

I must have been though at least 8 gearboxes in that time where i'd upped the boost and was frequency stripping teeth. Usually 2nd or 3rd would let go, sometimes the crown wheel would explode. The clutch though, what a beast!!

When changing the gearbox I always installed new throwout bearings. The one that came with the clutch didn't seem the best quality although i used it anyway without issues for the first year or so.

In terms of feel, the pressure plate is quite tough. I'd say the pedal is maybe 3 times heavier the oem.

In terms of driveability, the engagement is really harsh. You could daily it but paddle clutches aren't really designed for stop and go traffic. If you have poly engine mounts, the clutch rattles the entire car when pulling away and my passenged hated it. Once your moving though it's fantastic.

I wish i had the time to document these things properly. I still have the old clutch in the shed i think.