good clutch for 500HP?

[popdemonic]

nahh i didn't Nick.I'm looking to get the lightweight flywheel with the clutch kits for AAN now.
i have searched the LWFW and found 034's offered a Flywheel with 12lbs weight whilst Fidanza
has the one with part# 112221 for AAN but no weight identification on his Flywheel.Dunno which
one is the best bet.

http://www.ebay.com/itm/Fidanza-1122...d79494&vxp=mtr

[popdemonic]

well,i decided to post the review updated as for someone might be interested those clutch in the future.
i got the Sachs SRE sintered disc and installed them a couple days ago.
















Previously, i had Southbend Stage 3+ with Kevlar based compound.if you noticed on the pressure plate the southbend setup
uses the Sachs cover(Pressure plate) probably the same as SRE!!?? with modified fulcrum rings and fingers!!?? as you see
the fingers between the Southbend VS SRE,the SRE is much thicker fingers than the southbend's.the number of the fingers
is 18 teeth on both Pressure Plate.

on the first drive on SRE Sintered;though this's during the break-in process.i felt the clutch grab like on and off.
you need to rev up a bit more than organic clutch.the car is juddering if you did't rev matching from standstill.
it shifts on the fly from 2-6 smoothly like southbend's.No problems at all.
my car has GT2871 on E85 with 1,7-1,8bar.i could spin all 4wheels though during the break-in process.no bit of slips.
the major problems to me is the clutch pedal effort is PITA.i didn't know how much the pedal effort on stock clutch since
i have had the air lock on the clutch hydraulic line for 5years(yes i was not mistyping).it was one of my clutch won't be
fully disengaged.i didn't know how long i could use this clutch since mostly i drive the car in traffic.i could live with
the on off clutch response but the pedal effort is big pain to me lol.

[mushasho!]

So it's super stiff huh.... not cool... but at least you don't need to worry about slipping... Personally I think this setup is way too much clutch for a GT28 build.

[quattro-nick]

you can always try to place a little vacuumbooster on your clucht pedal like me
i believe i'm the first who made this

http://www.s2forum.com/forum/showthread.php?t=73795

[diesel des]

I think you will get used to the weight after a while. I don't find mine too heavy but lighter would be nice I suppose. It's the aggressive nature of the clutch I hate. Anyhow I'm going to put a twin plate Kevlar one in mine this weekend to replace the sintered sre. Will keep you updated.

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[popdemonic]

@El, i'm planning to go something bigger than 2871 but that being said,it's just a plan.the road and traffic in my country is not good for big turbo with later spool up,just one or 2 step bigger than 2871 is compromised.

@Nick,i have read your vacuum booster on that thread,dunno it needs a lot of job on C4.

@Des,i get used to with the light pedal feel.previously my pedal is way really light.i remember my pedal is way much lighter than stock LUK pressure plate but some reason of the pedal is being softer than stock pedal since i have a lot of air lock in the clutch hose and it was there for 5 years until i get everything sorted with pressure bleeder.the dead pedal is zero at the moment.from my flashback memory,i think the SRE pressure plate is
approximately 20% heavier than Southbend.The good thing on the pressure plate is i don't need to depress the pedal all the way down when shifting the gear.I depressed only half way of the pedal travel and the gear is good to get in any gears.I have a bit tiny left leg ;0 that's why the pedal effort is
prone to be more sensitive.

[popdemonic]

oh Des,also don't forget to keep us updated on the new clutch.i will try to live with it or a while.

[JOSH,S ABY S2]

Post: Bremsen Technik (UK) Ltd, are the main sre distributers in the uk. I bought direct at a good price.

[diesel des]

Ok pop an update. I have just swapped out the sre sintered paddle clutch. It has done just under 5 k miles and the friction materials look to have good wear left but the pressure plate and flywheel have signs of material transfer.

Any how I also swapped the rs2 gearbox for one I had built with different ratios at the same time as fitting the Kevlar twin. Obviously the flywheel was swapped too.

Anyhow things seem good! Really good! Clutch is very light witch good bite but no jerking. Much smoother. And even though it isn't ran in I tried a few hard starts and full power runs and it holds fine.

Only down side is that when stationary if you press the clutch in you can hear the floater plate rattling slightly. Not loud.

Also the car is going really well, so when I switched from lpg to petrol I could hear some longing. Do the reference pin on this flywheel must be afew degrees out so I will need to adjust vems.

Could do with bleading clutch again as the bite is close to the floor with the top part of travel feeling like its doing nothing. Think its some air.

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[diesel des]

Some pics.



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[popdemonic]

Thanks Des,that's still looking good after 5k miles of using.You can measure the SRE disc though.the new disc has 8,3mm on the thickness.
what's that Kevlar twin disc?very interested.Des can you roughly estimate in % how does the pedal effort decrease on the new Kevlar disc VS
4 pucks Sintered?

@Josh thanks for the dealer in UK.Do you have his website?

[diesel des]

Pop my Speedo isn't working since the gearbox change so I will fix that and measure the material thickness too. The Kevlar material is quite thick but I didn't measure it. Everything I read and was told about Kevlar clutches is that the material lasts a very long time and doesn't mark or damage the flywheel surfaces. This also means it takes a long time to properly wear in. It can take more heat than a stock organic material but if you really heat it bad its toast and won't recover.

The peddle is lots lighter than the Sachs. It feels like a stock modern car. The clutch in my works 2 year old Toyota hylux jeep is heavier than this twin plate. The first time o pressed it I thought I had massive amounts if air in the system or that this was too light and would no way hold 700 nm but it does.

Cheers

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[JOSH,S ABY S2]

racepads.co.uk

[popdemonic]

Pop my Speedo isn't working since the gearbox change so I will fix that and measure the material thickness too. The Kevlar material is quite thick but I didn't measure it. Everything I read and was told about Kevlar clutches is that the material lasts a very long time and doesn't mark or damage the flywheel surfaces. This also means it takes a long time to properly wear in. It can take more heat than a stock organic material but if you really heat it bad its toast and won't recover.

The peddle is lots lighter than the Sachs. It feels like a stock modern car. The clutch in my works 2 year old Toyota hylux jeep is heavier than this twin plate. The first time o pressed it I thought I had massive amounts if air in the system or that this was too light and would no way hold 700 nm but it does.

Cheers

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Thanks Des,very interested!where did you get the twin plate from?Does it need any mods on the flywheel?i believe you have the 7a flywheel from what i noticed on the photos.


@Josh Thx mate!

[diesel des]

I measured the Sachs sintered disk at 8.5 mm thick with 1.4 mm approx from friction surface to top of rivit. I replaced the speed sensor and now my Speedo is working fine. I then did a 50 mile drive and I really like how smooth and light this clutch is. It didn't slip at all and drives really nice. The biting point has moved since yesterday and is now up from the floor an inch or more so the clutch feels right now. Maybe just running in.

The company that made the clutch are in Leeds England and I sent them a 7a flywheel and an old spec clutch I had so they could measure up. They modified the flywheel and did all the required machine work. The guys name is Mick who did mine. It took about 3 months but I was in no rush. He should have my clutch details on file now.

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