Clutch comparison

[Shhmaudi]

Given the mods in my sig..

Stage 3 ko4 aggressive e85 tune

should I go with the fx400 or Project B5 stage X clutch with a RS4 PP?

Which one will last the longer? And take more abuse ie launches/ spirited driving ?

[itguy]

Stick with an rs4 pressure plate and any 6 puck clutch disk. No need to spend more than 200$ on the disk as well.

[zillarob]

Non sac fx400 pp will prob take more abuse than rs4, dont have to worry about it over adjusting.

[tag5071]

Anyone have experience with the project B5 stage X? Curious to hear how it is for a daily driver.

[julex]

"Project B5 stage X clutch with a RS4 PP" is not Rs4PP. It is a sachs PP, similar or even the same as used in SB extreme clutch.

[Scotty@Advanced]

Non sac fx400 pp will prob take more abuse than rs4, dont have to worry about it over adjusting.

I'm very familiar with the B5 RS4 cover but have not seen a SAC problem not related to improper installation. However by eliminating the SAC mechanism you don't have to worry about problems with it. I know VAST used to bend the adjusting tabs on the SAC mechanism essentially defeating it.

"Project B5 stage X clutch with a RS4 PP" is not Rs4PP. It is a sachs PP, similar or even the same as used in SB extreme clutch.

SouthBend uses the SRE (Sachs Race Engineering) cover. The Stage X clutch uses a modified off the shelf OEM Sachs cover which is not made by SRE.

[liloldbie]

So which clutch is your best bet to handle abuse? I'm wondering this myself.

[zdriver]

I've been using the project B5 clutch for the last couple hundred miles. Pedal feel is light and easily driveable, and it is rated to handle a lot of tq. I had a 6-puck FX400 in the past and engagement was significantly harsher

[Scotty@Advanced]

I've been using the project B5 clutch for the last couple hundred miles. Pedal feel is light and easily driveable, and it is rated to handle a lot of tq. I had a 6-puck FX400 in the past and engagement was significantly harsher

Engagement is almost 100% related to the disc. Puck discs generally engage harsh.

[zdriver]

^^ thats why I am surprised that the FX400 and Project B5 have a different engagement feel. I have the 6-puck disc for both.

I do only have 200miles on the Project B5 so maybe the feel will change more with break in

[slow ride]

A lighter pressure plate will soften the engagement some as it's a little more controlable. If the pressure plate or flywheel have any cup to them, causing them to not contact the disk 100% will really add to rough engagement. Metallic disks can drive nice, but almost always have a little to decent amount of chatter. They will take the heat better from slips for launching, but also break more parts if dumped.

I can't see how this Sachs "racing" plate is so high dollar. It's a fricken stamped steel cover with a heavy spring, etc. Nothing really that special so why can't we just buy them and add our own disk (of proper thickness) and go?

[Scotty@Advanced]

A lighter pressure plate will soften the engagement some as it's a little more controlable. If the pressure plate or flywheel have any cup to them, causing them to not contact the disk 100% will really add to rough engagement. Metallic disks can drive nice, but almost always have a little to decent amount of chatter. They will take the heat better from slips for launching, but also break more parts if dumped.

I can't see how this Sachs "racing" plate is so high dollar. It's a fricken stamped steel cover with a heavy spring, etc. Nothing really that special so why can't we just buy them and add our own disk (of proper thickness) and go?

I'd agree, The SRE is high bucks because Sachs charges high bucks for it.

[Sl0w_S4]

i have a 4 puck unsprung clutch with a rs4 pressure plate. after 1k miles of average driving tried launching the car and the clutch actually slipped. also noticed if i FFS it doesnt grab as hard? do you think its because of the pressure plate? and the car is a strong stage 2+ car

[zillarob]

i have a 4 puck unsprung clutch with a rs4 pressure plate. after 1k miles of average driving tried launching the car and the clutch actually slipped. also noticed if i FFS it doesnt grab as hard? do you think its because of the pressure plate? and the car is a strong stage 2+ car

4puck should grab like a mofo. They can be pretty aggressive on the pp and fw though. I would be curious how much preload it had when installed and how much it has worn since. Does it release up at the very top?


The Sachs pp that comes with the higher end kits is stamped out of a thicker steel than the run of the mill units, even though they look the same otherwise.
They change the lever points internally to gain more clamp and retain the light pedal. Dont think it quite justifies the mega premium though.

[Sl0w_S4]

[QUOTE=zillarob;8514140]4puck should grab like a mofo. They can be pretty aggressive on the pp and fw though. I would be curious how much preload it had when installed and how much it has worn since. Does it release up at the very top?


it grabs half way and has a little chatter.

[zillarob]

Half way should be fine. I wonder if the rs4 pp just doesnt clamp it hard enough to work like it should. The 4puck cars I have driven were straight gnarly, not s4 though.

[Sl0w_S4]

Half way should be fine. I wonder if the rs4 pp just doesnt clamp it hard enough to work like it should. The 4puck cars I have driven were straight gnarly, not s4 though.

thats what im thinking. i had a fx400 in my sti and that car launched like a bat out of hell. now ive got a triple disk in it and its a huge difference, but im curious if this PP can be causing the problem, or possibly heat related?

[4ringjunkie]

go southbend stage 4 dxd i beat the crap out of mine
its just a little annoying during street driving but not terrible

[Griecos4]

I have a spec stg 3+ clutch and its been great. Full face disc will outlast a puck style disk by a lot. Soft clutch pedal too.

[Shhmaudi]

I have a spec stg 3+ clutch and its been great. Full face disc will outlast a puck style disk by a lot. Soft clutch pedal too.

Really? So a 8 puck is the best of both worlds? Does the stage X come 8 puck? How long does a 6 puck usually last on average? I know thats a really generally statement...

[fatezero]

go southbend stage 4 dxd i beat the crap out of mine
its just a little annoying during street driving but not terrible

Hey Alex, I suggest you respond to my emails and PM's. Quit dodging me

http://www.audizine.com/forum/showth...parts-from-him

[S4 00 2.7]

go southbend stage 4 dxd i beat the crap out of mine
its just a little annoying during street driving but not terrible

Alert**

This guy is a scammer!

[Shhmaudi]

Bounce to the top
which 1 will hold, last longest with my mods

full face clutch disc rs4 Kit or project b5 stage x or fx400 8 puck??

[Griecos4]

Don't get a puck clutch disk if your looking for longevity. I just did a six speed swap and a lot of research on clutches. Full face clutch disk is what you want.

Bounce to the top
which 1 will hold, last longest with my mods

full face clutch disc rs4 Kit or project b5 stage x or fx400 8 puck??

[z00lander]

I have an unbranded stage 4 clutch and rs4pp. Can somebody explain to me why i can launch car and go wot thru all gears with 0 problems, but if i do no lift shifting as my ecu is tuned for something is clearly slipping. That is the only time i have any issue at all.

[bigern45]

Rs4 pp does not have the clamping force needed for launching... Highway pulls...probably.

I had rs4 pp and south bend stage 4 and it started slipping, upon removal noticed hot spots all over where there wasn't enough clamping force and it was slipping

[Shhmaudi]

Rs4 pp does not have the clamping force needed for launching... Highway pulls...probably.

I had rs4 pp and south bend stage 4 and it started slipping, upon removal noticed hot spots all over where there wasn't enough clamping force and it was slipping

Great info, does the rs4 clutch disc mated to a south bend pp hold close to 500whp?

[bigern45]

I do not know this, I haven't had the experience with the RS4 clutch/Southbend PP. My setup only slipped during launches, even with WOT highway pulls it held fine. This is even after it was slipping bad at the strip, never once did it slip on the open road.

[TweetsS4Estate]

The new B7 RS4 pps seem to be doing well and drive well. I'm utilizing an AMD pp with twin-disk-like clamp load. 3200ishlbs. I will let you all know how it goes.

[Shhmaudi]

I do not know this, I haven't had the experience with the RS4 clutch/Southbend PP. My setup only slipped during launches, even with WOT highway pulls it held fine. This is even after it was slipping bad at the strip, never once did it slip on the open road.

Mine is the same way. Except sometimes when I am taking a turn and getting all of 2nd the clutch will slip on the exit. But launching it slips, but WOT highway pulls its fine.

The new B7 RS4 pps seem to be doing well and drive well. I'm utilizing an AMD pp with twin-disk-like clamp load. 3200ishlbs. I will let you all know how it goes.

Hmm might go B7 rs4 PP with a b5 rs4 clutch disc? thoughts?

[TweetsS4Estate]

Mine is the same way. Except sometimes when I am taking a turn and getting all of 2nd the clutch will slip on the exit. But launching it slips, but WOT highway pulls its fine.



Hmm might go B7 rs4 PP with a b5 rs4 clutch disc? thoughts?

You have to have a modified B7RS4 PP inorder to run it on a stock flywheel. AMD offers a modified PP, JHM also offers a kit but requires the purchaser to buy a flywheel as well as it is unmodified. Both are great options IMO.

[c0rrup]

fx400