Single vs Twin disc clutch

[sk8prk]

Ok, I'm converting my A4 to a T56, but I don't know much about the difference in clutches. What's the difference between the single and twin disk clutches besides the number of friction disks? From the little research I've done it looks like the twins have better holding power, but few people run them.

[BLOWNDFIZ]

Holding power and driveabilty are two key features of a twin disc clutch. I think the reason you don't see many or as many running them is because the only LT1 option is the McLeod Street Twin and last time I looked ran about $1300 or so. I do have one and compared to my old RAM single disc it is well worth the money in my opinion.

[sk8prk]

Makes sense, that is pretty pricey for those on a budget. Thanks!

[Fastbird]

The street twin is a great clutch but make sure whatever you have behind it is bullet proof because if there's a weak link it WILL be found. Unless you're running BIG power (like 500-600+ at the wheels) AND trying to make it stick like a funny car on a launch, you'll be fine running a good single disc. My recommendations would be for anything under about 375 at the wheels the Spec 2+ is an outstanding clutch (had one myself, was great, smooth, no chatter, grabbed hard enough to bark a WOT 3-4 shift on the highway), and over that the Spec 3+ is a beautiful option.

[Ryan Stout]

I put together my own clutch I guess you could say. Went to Advance Auto, ordered a clutch kit ($220), threw away the disc, kept the TOB, pilot bearing, and pressure plate (Valeo). Bought a Ram 6 puck disc from summit, pulled the spring pack out, flipped it backwards to fit the LT1 flywheel and pressure plate, tossed it in. Cost me $420 total. I made 426rwhp, 511tq with my old untuned, stock injector 70mm turbo setup (now I have a MP76, its tuned with injectors. about 460/540 if I had to guess) and its holding awesome. I have about 8k miles on it and its almost like an on/off switch, but its never ever slipped. Takes a few days to get used to but I like it now. Before you go spend $500-$600 on a Ram full faced disc setup, do some research on people who put the disc they want on a replacement pressure plate, you'd be somewhat surprised. We'll see how this clutch does on my 383 turbo build, might have to get a Street Twin :-/ .

[sk8prk]

Yeah, I'm building a 396 with AFR 210 heads, and spray, not sure about the cam yet, so I think the spec 3+ or street twin will be the way to go. The only thing about the puck disks is that this is going to be cruising the streets for the most part, so drivability is important. Thanks for the info guys!

[Pro-jection Eng]

I loved my old Ram Powergrip HD. Very very streetable and little to no chatter. I have a Spec 5 now, wanted to try something different before jumping on the street twin bandwagon. Gotta say... solid hub+ iron friction material = shitty streetability. I really enjoy driving car that's hardcore, maybe you won't. I'd recommend the Powergrip HD if you're staying under 500 rwhp.