What's a good clutch for my S1 Series Turbo with 260 rwhp?
 

What's a good clutch for my S1 Series Turbo with 260 rwhp?

ACT stage 2

ACT HD from FM.

What makes you think you're getting 260 rwhp out of an S1?

Ouch.

S1+260whp=ied

Inexistant is spelled with an "ent".

Zoom, an HD isn't going to cut it either. He's gonna need and XT, and only buy it from FM if you want to spend $100 too much.

Actually, an HD will hold up just fine. :)

and shouldn't it be non-existent?

I fail, my ACT HD started slipping at 180rwtq.

I was assuming 1.8 size

That is the more common use but they are both technically correct.

I assumed the standard S1 was only for 1.6 w/AFPR etc... but 260whp is a pipe dream even on a 2860 without ECU.

The 1.8HD ZM2-HDSS is rated for 233tq, or about 210wtq? I know ACT underrates thier products a little, but you'd probably be at around 220-230wtq at 260whp. It would probably hold on the street, but it'd be on the ragged edge on the track and the longevity would suffer.

I'd think at that power to be safe, either an XTorganic or upgrade the HD to the 6puck sprung to hold 300wtq no problem.

I have no experience with ACT, only what I read and what the numbers say, but 260whp on a 1.8HDss is just too close a margin as far as the numbers read not to get a little more clamping for a little more money.

what about the Spec clutches that 949 offers?

Remember that clutch ratings aren't at the wheel, they are at the crank. So add (or remove) about 25hp.

Everyone (but me) knows that Spec clutches are ass and ACT or Clutchnet is the shit.

And clutches aren't rated in hp... they're rated in torque. All the numbers in my above post are labled accurately.

And I've changed my mind about my Spec Clutch. You can do a SamNavy title search for clutch and see the problems I had.

At this point, I'm going to chalk up my clutch problems to improper install, or some other random factor. I was meticulous when I installed it the first time since it was my first one, but somehow the PP was seated unevenly on the disc and causing a hot-spot... placing all the clamping force on one spot on the disc. Since my motor/clutch swap, torquing all bolts in an opposing pattern at 5lb increments, tapping the PP with a rubber malleet as I went to ensure even seating, I've had no problems at all with my Spec. It feels great, clamps hard, slips well, and I'm throwing 15wtq more on it than last time. When I get my timing table sorted out, I'm sure there'll be another 15wtq it will hold.

I run the SpecStgII 1.6 and paid $310 for it. Right now I am pleased. My long-term results will be made known to you in another 10k miles or so.

I have 15,000 miles of transmission-busting shifts, 5000rpm autocross launches, and burnouts on my ACT HD with a sprung 6-puck disc and I wouldn't recommend anything else. Under $400 shipped from Carolina Clutch. It will still bark the 225/45 NT-01s on a hard 1-2.

The ACT XT street disc has an awesome feel and is bulletproof. The 1.8 HD will supposedly hold a ton of torque too, but there was a batch of the street discs that made an awful squawking sound when engaged... forever. Don't fuck the dog like I did by buying a 1.8 HD on eBay.

As Savington said.

HD + 6 puck.

OR XT + street disc.


You have a choice between rough engagement, or hard pedal feel. This is the 1.8L clutches.

ACT or nothing.

Edit: I am personally going with the HD + 6puck, as I don't see myself making 300+ whp in the future, if you do, go with the XT and later go with a 6 puck when the power goals require it.

clutchnet can suck my balls. My spec s3 has been great at 94whp on the track. I've tried a few of the different materials available on turbo vw's, and they all suck ass. I say if you drive a naturally aspirated car, get a organic disc. If you drive a turbo car, get a metal 6-puck disc with a sprung hub. Don't bitch and moan about the chatter and shit, just be a fucking man about it. You can either be a man and have a clutch that you know will grip, or you can be a beta-male powerbottom who bitches and moans that he has to pull the trans again and put a real clutch in the car while admitting you should have listened to your father (hustler) from the beginning because he is your alpha-daddy who's fucking your girlfriend, and makes you sit down when you piss. You better not let me catch you standing up when you piss.

My 1.8HD has been on the car for around 10k miles or so I think.
FM said they had the 1.8HD on a 300whp car that got track time for like 15k to date with no issues. And I've heard of quite a few similar stories.

I think ACT's clutches are waay under rated. I plan to toss a 6 puck on my HD pressure plate when I get the new motor in. I think it will be ok.

this is why i got a RED 2x PP for my 6-puck disc :) should be plenty for my goals.... Clutchnet 2X PP = ACT HD PP

You are right about everything but the sprung hub they are for pussys real miata owners get a XT ppp and a unsprung 4 puck metalic disk.

Because i'm running PNP Megasquirt 96/97 ECU, RX-7 550cc injectors, Garrett GT2860RS, and an upgraded intercooler without A/C.

What's so impossible about attaining 240-260 RWHP at 12 PSI with that setup?