I thought I would share my clutch experiences with everybody. I hate corvettes and picking clutches, with regards to launching, daily driving, chatter, breaking rear end parts, etc.

I have to say, hands down, the RXT is the best clutch I have owned. I melted through my ACT twin disk in about 5,000 miles with only 2-3 passes on it. It wouldn't even hold a highway pull.

I yanked it out, and had England Green put in a Mcleod RXT clutch. WOW! As Bill,(fivelitereater), likes to say, its the "bees knees". This clutch is amazing. For the first 200 miles, it was pure butter. Much lighter than a stock ls7 clutch. I gave it a quick highway pull at about 250 miles(true city miles), and it was great. The next 100+ miles were easy again, and it slightly firmed up, which I wanted it to do(so I can slip it). Now, it is absolutely perfect.

So after the breakin, I made 1 full 1/8 pass. Wow! To my surprise, no melting to the floor like the stock ls7 or ACT twin disks did. I actually bogged the car, so I need a little more rpms, and more tire.

Best of all, there is zero, and I mean, zero noise from this clutch. No chatter, no weird noises, nothing(ACT had a little chatter, Spec 3 had a big chatter over stock on my z06). You can lug the car up a parking garage like the stock clutch, etc.

It is a true street clutch. Other clutches might 60ft better, but I have no doubt that within 10 passes, I can get it in the high 1.5-low 1.6 area, and not have to deal with a puck clutch. If you consider some of the twin disk clutches, I would not overlook this one. Here is me on my pass bogging the car, getting out of the groove. Still went 106.5mph in the 1/8 in the warm Houston air and a 1.7 60ft. Now I have to learn the clutch and get some seat time. Thanks to Dan(4selll) for turning on the cameras when I was strapped in to the 5 point.

 

My good friend Joe (racerx8) has the McLeod also after trying ages others and he loves his as well...best of luck...enjoy!

 

Thanks! It is really a nice clutch.

 

Thanks for the write-up. I know this is old, and will probably get locked, but I wanted to get a follow-up on your impressions now that you've had it for awhile.

Also, you say its not a puck clutch--I thought the RST was the organic-type disc, and the RXT was the puck-type disc, is that not the case?

 

Ibtl!

 

Good to hear! We are finishing up my turbo kit and I just bought one of these. Did you get a flywheel with it?

 

I'm interested as well...someday my 62000 mile 466 pass stock clutch is going to say uncle. And I don't want an on-off switch clutch, which it seems a lot of the dual's are.

Bill how's the clutch been after almost a year? You hear a lot of people bragging about a clutch after a month...very few after a year.

Appreciate your input.

 

Got a pm from justin on this thread.The McLeod is an outstanding clutch. I have never had an issue with it. I'm on my phone and will post more details about my setup, power, etc when I get on a pc. Actually in a cab going to pick up my car now

 

Thanks Mark

Mods, if you could be so kind to leave this thread open for the public. I know it's against forum rules but this has a great deal of information in it and I'd hate for it to be lost. Thank you

 

Nobody ever follows up with a year and some miles on a clutch...that's the information I'm really eager to hear.

If this clutch holds up to street and track driving for a year, that's a real testament.

I have no interest in a clutch that needs to be rebuilt every 3 months or is such an on-off switch that I'm breaking something every time I launch.

 

Joe, and Justin. I know it's a big deal for you guys since you two might be some of the best drivers we have on this board.

Here is a little rundown of my setup. I make around 770-800rwhp through a 402 and a Novi 1500(depending on dyno, had one that read 850 but I think it wasn't corrected). I've had the clutch for a about 6 thousand miles, and almost everyone of those miles is under boost or some type of load on the street, strip, dyno, etc. I might have 60 dyno pulls with this clutch over 650-800rwhp with 2 different motors, and 3 different blower kits. Many at dyno days, etc. I have a ton of Mexico pulls, and maybe 20 passes in it, and maybe 30 total in the car. I also do burnouts before some pulls off the track, so heat is in the clutch and I consider some of those basically track passes.

This clutch is not an on/off clutch. It reacts the same way, every single time I launch the car. I launch at around 3200rpm, with the rpm slowly creeping up right before I slip it hard. The clutch takes it every single time, never sits to the floor, etc. It just plain works. The last time out, my worst 60ft out of 5 passes was a 1.62, but only because I launched at 2800rpm and bogged after the slip( it was my first time running nitrous, and I have to take my hand off the shifter and turn it on manually in 2nd gear, so I was more concerned with nitrous than actually launching the car). Every single other time, and I can cut a 1.5 with ease. I have only actually launched the car 1 time hard. 5litereater and Flash were at the line, and I told Bill(5litereater) that I am going to launch the car hard for the first time. I went 1.46 launching at 3500-3700rpm and a 9.84@143mph.

With that being said, I think that is about the max that my car can do on MT drag radials and a 100% stock driveline and full street weight+rollbar with no skinnies, etc. I don't have a brace either, so I haven't had any desire to push the car harder than a 3700rpm hard slip of the clutch. I think with the power I have, it is going to take out both the rearend and the tranny in one blow if I try to go faster than 1.45-1.50. With a built rearend, etc, I don't see why it wouldn't run mid 1.3's with a 6 speed on drag radials.

Unfortunately, I don't have any outside videos of all the 1.5 60ft runs I did, but I do have the slips if you would like me to post them. They are all in the ET fast lists thread. I believe I have one 1.5, three 1.60-1.62, and my 1.46 run. I'll try to make a video of what I do have with them chopped up.

Another note, my motor has a rear main seal leak that is going in to the clutch as well. I try to keep the fluid clean, but it even has oil in the fluid each time I change it. That also amazes me as to how well this clutch has done at my power level. The amount of abuse that this clutch has seen, especially on the street at high hp levels, and so many back to back dynos, is amazing to me. And knowing that I can take the car out and rip off 1.5's each time is very comforting to me since I don't change anything on the car except drop the rear tires down 6psi.

 

 

Mark, that is great info and it really does say something for a clutch to hold up to that kind of power!

And thanks for the kind words!

How is it on the street? I daily drive mine in stop and go, and I like being able to just slip it with no throttle pedal to creep the car forward.

 

No problem, Joe. I live on the 5th floor of my highrise. With my cam, 232/244-118+2LSA, I can lug the car up with no throttle. It drives amazing in traffic. I live in one of the worst traffic spots in Houston. I live in Galleria area in Houston in the inner loop. The car drives great with a spot on tune. At first, the clutch had some chatter to it. Was gone in about 1,000 miles. With a 232/244 cam and clutch, I can easily walk it around with no throttle in and out of traffic. The drivability part will come down to your cam, not your clutch with the RXT.

 

Wow, great review. I think that pretty much has me sold on this clutch.
I was looking at this one or the Monster Stage 5, but I'm not sure how a big nasty single disc would be for daily use, not to mention the wife approval as she does drive my car sometimes.

It's looking like I'll be doing a clutch in the next 3-4 weeks so I have to nail down my choice here pretty soon.

Thanks for the kind words Mark, I appreciate it

 

I've driven Mark's car and the clutch does drive great on the street with regard to pedal pressure and engagement. My only complaint is that it engages a little high for my taste.

 

Can you dumb that last statement down a little for us slow guys? Are you talking just about the postition of the pedal relative to full engagement?

 

i am starting to really like the Mcleod stuff, recently became a dealer for them, i am going to start using them more and more, because i have been having multiple quality control issues with another popular clutch company as of late..... on another note, what exhaust do you have on your ca??r, i really like the exhaust note...

 

Yea it seemed like it didn't start grabbing until ~3/4 of the pedal travel.

 

Ryne, thanks. I have OBX headers with B&B exhaust on my car. I agree, it is a great clutch.

Bill, thanks for the help tonight. We only had a standard size flathead and I gave up and left the car at the warehouse. The clutch, however, isn't up 3/4 till it starts to grab in the range of motion. I made sure to check that today.