I know this isnt a "forced induction" question but Ive asked over there with little response. So fellow boosted brothers help me out. I need a clutch that will hold about 900-1000 rwhp. It will be in my 370 twin turbo vette and everyone I talked to said that nothing but a tilton triple disk would work. I need you guys with real world experience to point me in the right direction with what you have used with success. Ive talked to ram and they said they could do a duel disk setup but Ive never had one of thier clutches,spec is going to have a lawsute for exploding clutches,I cant get anyone on the phone from Mcleod. Any help would be appreciated.

 

I would say either Mcleod or you could try textrailia...Good luck man...

 

I have no experience with McLeod, but I have heard nothing but good things about them..

 

I'm running a McLeod twin disk. Driveability is great. I've had some minor hydraulic issues (bad McLeod master), but other than that no issues. When I was doing research last fall before my purchase, numbers I was quoted 1000 rwhp & 900 rwtq. The key with the McLeod is to not slip it at the track or it will overheat and glaze over.

 

Ive got a spec 5 here....love the drivability of it....acts like stock....i have stock master and slave and an aluminum flywheel.It squealed when first installed and ive but about 250 miles on the setup so far and the squeal is almost gone,its very pleasant to drive and is not the "on/off" that people say it is.

 

im trying the newest twin disk deal from ram. seems so good so far, but i havent turned it up yet, so we shall see

 

I dont know if I trust spec from what was said on the corvette section. They have blown through the car and out the top. I had a spec stg 3 in one of my old cars and it blew through the bottom of the bellhousing. I would like to go with Mcleod but they wont answer phones over there. I talked to Linginfelter and they tested a new material on the Mcleod twin disk and was doing good on 1000 rwhp.

 

the specs taht blow up are the sprung hubs, the solid hubs have not blown yet...



my stg 5 has been great.

 

The McLeod twin is on my car and working nicely... but I'm not sure if it would be appropriate for that much power, though. I would say consensus on McLeod is:

Clutch = good
Adjustable master = good luck
Customer service = who?

 

Spec 5 here as well. Going for 900rwhp next.

 

Just talked to Mcleod and they have a new clutch coming out that is a twin disk with a bronze carbon material. It is still new and they have only tested it on some cars. They say it is holding 1250 rwhp vipers now. Lingenfelter is also running one on their 1000 horse C-6. The only problem is they have a very hard time getting the new material from the manufacturer. I will call spec tomarrow to see what they have to say.

 

A Tilton or other small diameter clutches like the ones made by Quarter Master are not well suited for drag or street applications. Yes, they will handle the torque, but they are not designed to be slipped. If your goal is to drive your car on the street as well as at the drag strip, then you best bet is one of the large diameter dual disk clutches. Either the McLeod or the Ram I am sure will handle the job.

The only possible alternative in a small dianeter clutch is a 3 disk Carbon/Carbon clutch. These are used extensively in high HP import drag racing applications like on Supras. The carbon is able to tolerate a pretty high degree of heat so it can be slipped. The diskc and the floaters are made of carbon, so there are no issues with warping the think floater plates. Big bucks! We are talking over 3K. The upside is that these clutches can be shimmed to bring the spring pressure back into spec. So they last a long time.





Andrew

 

andrew come back home to chicago...thats one of the most useful posts ive ever read on tech. that looks like one well made piece...you runnin it on any car i might know about?

 

Over 3k... DAMN.

 

i run a spec 5

 

3k for a clutch, holy ****! Thing better get me 70 thousand miles, lol.

Nice looking piece of equipment though. Anything for the less "serious" guys? (800-900rwhp street driving with occasional strip appearances...)

 

I think the McLeod is the best bet. Spec if you can stand to put up with the noise they make.

 

RAM LS1 dual disc

ram claims 900 lbs holding power

 

Ive talked to RAM and they said they arnt sure it would hold my combo. They could play with friction materails on the disks but didnt ever do it. So if RAM had real world experience I might good with them but they dont unfortunatly.

Mighty Mouse how much power do you make? Does it hold good at that power or is it on the edge? Any noise out of it? How many passes and miles?

 

I have had 4 RAM single disk clutches in my car and all performed well. I went with McLeod on my car. I wanted the clutch to hold more at topend than drags. If I do drags more, I will swap to a TH400.