USNA82

So after my past C6 GS performance upgrades, I'm sitting about ~800 HP (674 RWHP). After a few high speed Mojave runs, my stock clutch is toast. I know I need to upgrade to a twin disc clutch but there are so many brands/options. I've done some basic research on clutches and flywheel combinations but I'd appreciate some sage advice/empirical recommendations.

I will occasionally do some high speed events and some track drag racing but it's mostly a street car so I don't want too aggressive of a clutch.

The available disc/flywheel options I've been recommended are: GM LS9, Katech, Mantic, Lingenfelter and McLeod RTX.

Can anyone share their personal experiences and recommendations in making this decision?

schpenxel

Mantic 9000 or Monster LT1-SC

Surely not the LS9

And everything from McLeod seems hit or miss. People either love them or they take them in and out 3 or 4 times measuring and shimming before they work right.

Mantic or Monster you just bolt it in and go.

Detoxx03

Stay far away from the LS9 clutches. Get a Mantic 9000.

Unreal

What they said.

schpenxel

Oh, and I'd do billet bearing support regardless

Unreal

Meh. Never seen one melt or have issues besides rxts that like to eat slaves and bearings. Any other clutch doesn't seem to have that issue.

schpenxel

Yeah, more of a while you're at it thing

Plenty of people running around fine with stock plastic one

staticki

Stay far far far away from McLeod.

Mantic gets my vote.

USNA82

Pretty unanimous - thanks everyone who replied about the clutch choice. Really appreciate it. I see online the Mantic 9000 is the clutch assembly. I infer everyone is recommending their fly wheel too?

e.g. Mantic Clutch Kit - 9000 Series Flywheel F9001

USNA82

I think I'm going to answer my own question. They sell the entire kit too: Mantic Clutch Kit - 9000 Series Sprung Street Cerametallic Twin Disc M921202.

Awesome.

Detoxx03

Getting it through ECS is best

schpenxel

It comes as an assembly. You have to have their flywheel. Call ECS.

Do we get commission? lol

staticki

Every one less sale for McLeod is commission enough for me.

#imbitter

Mike's LS3

on the flywheel.

Don't forget the remote bleeder.

Just had an new GM clutch master cylinder installed on my 08, now my Mantic 9000 feels like the LS3/7 clutch. The pedal feel is smoother and slightly lighter with the new clutch master cylinder.

Kryckter

ECS has a kit with the remote bleeder, pilot bearing and new slave.

Give them a PM or call.

DOUG @ ECS

Thanks, the bleeder kit and pilot bearing are included free from ECS only.

Thanks for your business guys!

chpmnsws6

I've had good luck with my RAM 10.5 the previous owner installed, but it looks like you're right at the limits of its holding capacity. I've also had a well known trans shop in our community suggest not running a remote bleeder line. That said, I still put one in every car that has a clutch swap/trans pull.

neverstop

I can't think of any good reason not to run a remote bleeder, dirty clutch fluid causes all sorts of issues in these cars.

ECS will hook you up with what you need. Mantic ftw

schpenxel

Other than potential leaking/melting if not routed correctly, I can't really see a reason not to run one either.

GeneSch

I went Mantic 9000. I got it threw a friend. I had to gt my own remote bleeder and pilot bearing. Well I ended up with the wrong bearing(I Ordered from GM) and it caused me to eat 2 slaves.

This was %100 my fault and not an issue with the clutch. Let me tell you, Mantics customer service was better then any company I have dealt with. They were calling me while I was pulling it apart on the weekends (both times until i figured out the issue.)

My point is, If I would have picked it up from ECS, I wouldn't have had to pull it apart 2 times because every thing you need comes in the kit.

Clutch feels awesome... Just get it from ECS and you will be all set.