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2G Slipping clutch after only 3000 miles :(

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darknezz7

Proven Member
571
80
Mar 30, 2014
Eugene, Oregon
Hey all, been awhile since I posted. Cars been running ok although still have not worked out the WOT cut off issue but now there is a new issue preventing further progress.

About 2 months ago the owner said the clutch was feeling really soft and was not returning well, bled it out and it seemed to be normal again, which on this car normal has always seemed to have a lot of play, be soft and engage almost right off the floor...

About 1 month ago he said that in 4th or 5th when boost hits the rpms revved up but the car did not accelerate, just great. Hes been babying but now it will barley accelerate and won't go above 40mph without slipping in 3rd...


Its a XTD 6 puck ceramic with a HD exedy pressure plate.

What do you think happened? Just garbage clutch disk? Pressure plate too soft?

The master and slave are new, but aftermarket, possibly junk? It has a one piece SS line from the master to the slave. Clutch pedal rod not adjusted right?


I don't want this happening again so I need to nail down what caused it.

Whats a good combo for around 350hp? Engines built for more but thats the starting goal if it will ever stay together long enough to ever dyno it...

ACT? Competition? South Bend?

Thanks

Also I think his budget is $300 at the most right now so if we cant get a decent clutch for that it will have to wait.
 
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How about the competition stg 3 ?

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its $326

Should I be using a sprung or unsprung disk?


Check the clutch pedal bushings for excessive play and see if you are able to adjust the rod. Not real familiar with 2g's sorry

The bushings are new and I had the rod adjusted to where it seemed right but not 100% sure, but at this point its already slipping so that may have caused this but I dont think it can fix it.
 
ok, I've found the act 2100 kit for $340, but its only a 320lbs, or %50, torque.

I've read good things about the competition clutches and the stg 3 is a 2600 pp and rated at 150% at $326. I think thats claiming like 500lbs torque

The act 2600 kit is about $100 more and rated at 400lbs, or 80%, torque, is the act really that much better?
 
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hmm SBC stg 2 endurance at 415lbs rating for $400, not bad. Probably get that over that act 2600

It's up to you. It's your choice it's your ride.


Its not mine actually its a friends



Whats the opinion on sprung vs un and puck style vs disk?


Really I guess he just needs something that is still DDable and reliable but can handle the ultimate goal of 400hp
 
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If it's a street car use a sprung clutch only. Competition Clutch is a decent brand. I have a stage 2 disc on my car and it feels like stock, even a stage 2 should hold up to around 400 (less torque ofc). For the cost I can't complain, after the break in period it disengages and engages very smoothly and has held up during 2 step launches.

I've heard only good things about south bend but I haven't tried it (yet) so I can't vouch for that.
 
I just had similar issues with my setup. I was able to just change the clutch disc and keep all the rest the same. I've been using southbend for awhile now and had the b-series disc. It was definetly time for a reline. I do a lot of racing and launching :). Anyways swapped in another southbend disc (tz/fe) I had, freshened up the flywheel and pp surfaces. And put back together and havnt had a issue since. If his stuff is that new I would just source another disc and swap it in. ;)
 
But the PP is just a standard HD exedy, it has around 6000 miles on it. Will it hold up?

What happens if your PP is not strong enough?

when you say "B" series from SBC are you referring to the stage 2 drag? Now you are using the stage 3 endurance? "tz"

SB Available Clutches
Stage 1
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Use Part # (click each for details) Ft-lbs Price
HD K05048- HD 300 $196.35
Stage 2
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Use Part # (click each for details) Ft-lbs Price
DAILY K05048-HD- O 320 $218.79
ENDURANCE K05048-HD- OFE 415 $409.53
DRAG K05048-HD-DXD- B 465 $443.19
Stage 3
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Use Part # (click each for details) Ft-lbs
DAILY K05048-SS- O 400 $476.85
ENDURANCE K05048-SS- TZ 450 $521.73
DRAG K05048-SS-DXD- B 525 $589.05
Stage 4
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Use Part # (click each for details) Ft-lbs Price
EXTREME K05048-SS- X 525+ $617.10


Can I get just the clutch disks from them? I read somewhere SBC uses exedy PP's anyway


The owner really doesnt want to spend $400 on a clutch but will if thats whats needed.
 
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The b-Series is this K536SSXB – SSX Full Face Ceramic – Rated for 650+TQ – Ideal for drag racing and high temperatures, smooth engagement. It's the top full faced disc they carry. And yes you can just buy a disc from them. And now I'm using this one K536SSTZ/FE – Dual Friction Kevlar/Feramic – Rated for 550TQ – Ideal for street/strip, some drag racing and medium temperatures, stock feel.
Got mine thru tmz. I am sending my b-series disc in to sbc to get relined. https://www.tmzperformance.com/prod...ufacturer/southbend/mitsubishisbc/eclipsesbc/
 
If the car isn't making more than 500whp it's not the clutches fault. Make sure it's adjusted correctly.

The clutch in a dsm isn't rocket science, a puck clutch is a lot of clutch, and it will take a lot of torque to slip a 6 puck and stock pressure plate.

I put my car in the 10's on xtd clutch parts. The stuff works damn good for the money.
 
Ive read hit and miss on XTD clutches.

If its not the clutch though why would it just start? I've read it could just be glazzed and can be cleaned up.

Guess I won't find out til its apart

Say the xtd 6 puck is toast though, you guys are saying I can reuse the stock exedy PP and it will be ok? I was thinking it was too weak or something. At this point I think it was just a regular exedy clutch kit. The comp stg 3 that I was looking at comes with a 2700 PP for $326

Hmm I used to have a good bookmark on adjusting the clutch for these but cant find it now
 
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Ya you might be able to clean it up and reuse. And I don't see why you couldn't just get a new disc and use the rest. Unless he's making tons of power and the pp is under his to torque rating. But you really won't know till its out ;)
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Still wondering the stock exedy PP's rating? Cant seem to find the info anywhere.

I'm gonna take it apart and hope the 6 puck just needs cleaned up.
 
Maybe thats a dumb question, since its for stock application I'm guessing pushing past 250lbs tq qould be no good.

Let me ask this, again, what happens if you have too much power on a stock pressure plate but with a ceramic disk? The pressure plate wont hold it together causing slippage right?

Cars at my house now, I'll pull the inspection cover off in morning and take a look.
 
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