Dr L-88

IF you have experience (good or bad) with Mcleod's twin disc street clutch, I'd like to hear from you.

Thanks,
Rex

Street Shaker

I ran Borg & Beck Long in my 69 Vette street car with 568ci 820 hp and it worked real good. Good clutch !

zwede

I have the new McCleod RST twin disc and it's GREAT! Pedal effort is extremely light. Couldn't be happier with it. Before that I had a hays conventional clutch that was a leg breaker so the McCleod makes all the difference.

69 Chevy

I installed their twin disk/steel flywheel kit #64003-00-04 this spring. And if you Google that part number, don't believe that Summit says it comes with a 168 tooth flywheel. In reality it's a 153 tooth. I told them months ago to correct their ad copy but they never did.

McLeod says to take it easy for 500 mile break in. With all this crap tropical storm weather I only have ~300 so far. But so far, so good. Much easier on my left leg than the old Borg & Beck unit that it replaced. It was a little 'grabby' for the first 100 miles or so. And every so often gave off a whiff of burnt smell starting out in first. Now that's a thing of the past. It's getting easier and smoother as time goes on.

69ttop502

I have the old street twin with aluminum flywheel in my 502 powered 69 and love it. Not a good strip clutch but great on the street. Must follow the 500 mile break in though. Love the aluminum flywheel.

Bill

Dr L-88

Thanks everyone for your input. Since this assembly is thicker than a single disc setup, does it require a special clutch fork or release bearing? Any other tips you can provide for installation is appreciated.

Thanks,
Rex

zwede

The RST uses stock flywheel, fork and bearing. I believe the older "street twin" requires a special flywheel.

Bud2

I've installed the RST twin disc too. Drove it 6 miles to the drag strip and put it through its initiation. No time for the 500 mile crap. Not a problem with the 350 and street tyres. We'll see what happens with the 383 and MT 275s.

Bud.

Sam and Jess

Sorry about this hijack...

Bill, could you elaborate a little. I need need my resurfaced, but I am considering going with aluminum (if there will be a noticeable difference.)

Thanks, --Sam

jyounane

I have installed McLeod RST about a year ago. Used Lakewood adjustable pivot ball. Otherwise everything is stock including clutch linkages, throwout bearing, fork and bellhousing.

Couldn't be happier...very light pedal effort and progressive feel.


Joe

AzMotorhead

For clarification there are 3 types of clutch pressure plates.
Diaphragm, Borg& Beck, or Long. Clutch types

427Hotrod

Actually McLeod does some hybrid stuff with a Borg and Beck cover and a Long style lever arrangement for faster release.

The only issue you have with any dual disc is to make sure there is a enough release travel to get a clean release and not grind when going in gear. Sometimes the discs will swell a little and drag on center plate.

The dual discs will never slip and will hold insane power. If you run slicks and want to launch hard these versions are probably NOT what you want. In those cases you need a little slippage to get moving on a high RPM launch.

FWIW..the basic Centerforce Dual Friction can handle 700+ HP.


JIM

Gale Banks 80'

I used the What is refered to above as the Original Mcleod Twin wich is called the Street Twin. It uses it own Flywheel and they have since come out with a less exspensive RST Clutch wich uses a Stock style Flywheel. I have read on the forum nothing but good things about the new RST style. I for one have nothing good to say about the Street Twin. Horendous Firewall bending pedal pressure. (You could watch the Master Cly lift when You depressed the Pedal) Was about as progessive as a 200 Amp Breaker. One of the good things about Mcleod is that they are one of the few that have a Help Line. Only problem is that Billy will tell You what ever it takes to get You to hang up and go away. I had that Clutch in and out 20 Times trying diffrent Flywheels, Shims and Hyd Systems, had it balanced, I sent it people who new how to make it work and had it pinned. I might of got 200 miles out of it. Best thing I ever did was put it on e-bay at no reserve. Felt quilty when it sold.
Switched to a Spec SuperTwin it was like switching from a Funny car to a Honda. I'd say it has about the same as a C4 Pedal Pressure. Very Progressive. Easy to drive and thats kinda what a twin disc is suposed to be. CNC Aluminum compared to Stamped Steel. Its like 30 Years newer tech and its been a good one. Help line that's Helpful.

69 Chevy

Billy of McLeod tech line said the street twin was their best selling clutch.

As you can see from my first pic, their steel flywheel is only .425" thick. No special clutch fork or T O bearing needed other than the correct one for a diaphragm pressure plate...I used a Centerforce #N-1716. I did, however, install an adjustable pivot ball since I'm also using a Lakewood steel bellhousing and needed to make up the difference from the OEM flywheel's almost 1" thickness...Lakewood #15501

Only tip I can recommend is to follow McLeod's instructions about getting it balanced and don't screw up the combination of shim stacks...that's why I have tape on the studs to keep them from falling off.

McLeod's instruction sheet is online if you want to preview them.

69ttop502

I am running a Lakewood so I did need to run an adjustable pivot ball. Stock throwout bearing.

As far as the aluminum flywheel goes, it revs much quicker and no problem at uphill stoplights with my 2.20 first gear Muncie and 3.70 rear. Much different feeling driving the car with the light flywheel.

Bill

427Hotrod

One thing to consider is that the old style dual disc uses a very thin flywheel. I don't remember the weights of each, but there isn't as dramatic a difference as there would be with a stock type flywheel like what would be used on a single disc or an RST setup.

The entire assy of a dual disc is pretty hefty overall.


JIM

69 Chevy

My street twin weighs 35 pounds total...flywheel, floater plate and pressure plate.