RD Motorsports "8 Puck" Clutch

[Mazdazilla6]

@REBarker; @ZX299; Is there a certain reason you want a Fidanza? The ACT flywheels are less money and the prolite is still only 16lbs (stock is 26). Keep in mind the lighter you go, the more chatter there will be.

[REBarker]

Originally Posted by Mazdazilla6 @REBarker; @ZX299; Is there a certain reason you want a Fidanza? The ACT flywheels are less money and the prolite is still only 16lbs (stock is 26). Keep in mind the lighter you go, the more chatter there will be.

I like the idea of replacing the center pad instead of the whole thing. I'm good with either, just looking at different options.

I'm still a bit iffy on this clutch setup for a speed 3 since it's really only been tested on a 6. I've been looking at the southbend stage 3 endurance. I have a bad back and pinched sciatic nerve so a hard clutch is kind of a turn off for me. Stock clutch already hurts...lol.

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[ZX299]

^ What he said plus I'm already running the fidanza with the stock clutch. Would just prefer not having to get a new flywheel although it would still come out a bit cheaper then a southbend clutch.


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[Mazdazilla6]

Originally Posted by REBarker I like the idea of replacing the center pad instead of the whole thing. I'm good with either, just looking at different options. I'm still a bit iffy on this clutch setup for a speed 3 since it's really only been tested on a 6. I've been looking at the southbend stage 3 endurance. I have a bad back and pinched sciatic nerve so a hard clutch is kind of a turn off for me. Stock clutch already hurts...lol. Sent from my SM-G920P using Tapatalk

You can get the flywheel resurfaced at plenty of places, and it's not expensive either. A flywheel that hasn't been overly mistreated should last a couple hundred thousand miles.

Reasons for a softer clutch are definitely understandable. I made a post in Ron's FB group and got some good responses. I'll try to find out which ones were from speed3 owners and post em up here.

[REBarker]

Originally Posted by Mazdazilla6 You can get the flywheel resurfaced at plenty of places, and it's not expensive either. A flywheel that hasn't been overly mistreated should last a couple hundred thousand miles. Reasons for a softer clutch are definitely understandable. I made a post in Ron's FB group and got some good responses. I'll try to find out which ones were from speed3 owners and post em up here.

Sounds good. Thanks. I may be getting surgery soon so after I recover hopefully I won't have to worry about the stiffness of the clutch.

I do autocross with my car so I will be beating on it a little bit.

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[Mazdazilla6]

@REBarker; Seems only one guy who has a 3 has commented so far.

Here's what he said:

Originally Posted by Jayson Moore I only have 5 or 6k on the one in my 6 but those were all very abusive miles. The pedal isn't as stiff as the ACT 6-puck in my 3 and the engagement range is much longer but I can't say how it compares to stock.

The ACT 6 puck in reference was the stiffer old version. All of the rest have been 6 owners but no one has really complained about a stiff pedal and early model 6's are notorious for having stiff pedals.

[HawkeyeGeoff]

Originally Posted by Realgib3 I bought this setup like 6 months ago, maybe more, but haven't gotten to drive it yet (since my car hates me and wants me to die a slow and painful death). At this point, I can only say the pedal feel is essentially exactly like the ACT -puck I had.

Was this 6 puck a sub 2013 or a newer version (much lighter weight)? The old 6 puck has an exponential curve on the PP design so it would get harder to push it down as you went.

Sent while granny shifting, not doubling clutching like I should

[Realgib3]

Originally Posted by HawkeyeGeoff Was this 6 puck a sub 2013 or a newer version (much lighter weight)? The old 6 puck has an exponential curve on the PP design so it would get harder to push it down as you went. Sent while granny shifting, not doubling clutching like I should

It was an early 2012, but with the updated pad material.

[REBarker]

Here's what he said: The ACT 6 puck in reference was the stiffer old version. All of the rest have been 6 owners but no one has really complained about a stiff pedal and early model 6's are notorious for having stiff pedals.

It seems like no one comments about the clutches for the 3s...lol. thanks for looking.

I'm just not sure if I wanna spend the 275 + the flywheel and then it either kill my slave cylinder or just not last long between daily (100ish miles a day) and autox. But auto the same time, the whole south Bend kit I can get for 1244 shipped and I have seen reviews of it saying it's a better clutch feel and lasts longer.

All I know is I need one soon.

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[dawgincustoms]

I will not be offering a flywheel mating option other then the ACT. I have only used it with the streetlite, pn 600640, however have customers using it with the prolite without issues as well. I have done 3 revisions on the clutch setup for this setup along not only with material and disk but with distance on the pressure plate to reduce chatter and help with the speed3 no having the adjustable clutch pedal. I would not want to put someone with a setup that I have not ran myself and tested.

[REBarker]

Originally Posted by dawgincustoms I will not be offering a flywheel mating option other then the ACT. I have only used it with the streetlite, pn 600640, however have customers using it with the prolite without issues as well. I have done 3 revisions on the clutch setup for this setup along not only with material and disk but with distance on the pressure plate to reduce chatter and help with the speed3 no having the adjustable clutch pedal. I would not want to put someone with a setup that I have not ran myself and tested.

That's good to hear. Do you have anyone that has a speed 3 and has your current clutch kit(it know every car it's different and there are a blend lot of vsriables, just looking for something that has worked already)? If so, what kind of driving do they do and how many miles have they been able to go so far without resurfacing the flywheel or having it fail? I have about 380 tq and autox my car so I don't want to get this and have it only last 10k miles which would be about 5 months for me.

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[HawkeyeGeoff]

Originally Posted by Realgib3 It was an early 2012, but with the updated pad material.

Okay so I THINK thats the old pressure plate. Super super heavy.

Sent while granny shifting, not doubling clutching like I should

Originally Posted by REBarker That's good to hear. Do you have anyone that has a speed 3 and has your current clutch kit(it know every car it's different and there are a blend lot of vsriables, just looking for something that has worked already)? If so, what kind of driving do they do and how many miles have they been able to go so far without resurfacing the flywheel or having it fail? I have about 380 tq and autox my car so I don't want to get this and have it only last 10k miles which would be about 5 months for me. Sent from my SM-G920P using Tapatalk

The speed6 will be much more abusive on clutches TBH. They are heavier weight and awd. Speed3 will have no issue with durability if speed6 doesnt.

Sent while granny shifting, not doubling clutching like I should

[REBarker]

Originally Posted by HawkeyeGeoff The speed6 will be much more abusive on clutches TBH. They are heavier weight and awd. Speed3 will have no issue with durability if speed6 doesnt. Sent while granny shifting, not doubling clutching like I should

Yeah, I figured that much. Just not as many reviews from the speed 3 side on lifespan, pedal feel and overall drivability (on/off feel or more sprung like a stock clutch)

[HawkeyeGeoff]

Originally Posted by REBarker Yeah, I figured that much. Just not as many reviews from the speed 3 side on lifespan, pedal feel and overall drivability (on/off feel or more sprung like a stock clutch)

From early impressions the one dude stated its a significant difference between it and the old 6 puck for the better for both.

Sent while granny shifting, not doubling clutching like I should

[LSMS3TMB]

My interest has definitely been piqued. What about the clutch pedal assembly issues? Does the 2nd gen MS3 not have problems with that breaking when paired with a heavy duty PP? I'm also concerned about the slave cylinder crapping out on me. Or that a first gen issue as well?

[HawkeyeGeoff]

Originally Posted by LSMS3TMB My interest has definitely been piqued. What about the clutch pedal assembly issues? Does the 2nd gen MS3 not have problems with that breaking when paired with a heavy duty PP? I'm also concerned about the slave cylinder crapping out on me. Or that a first gen issue as well?

There are different revisions of slave cylinder, the old ones fail more than the new ones. It's like 80 bucks and very easy to change.

[Mazdazilla6]

Originally Posted by LSMS3TMB My interest has definitely been piqued. What about the clutch pedal assembly issues? Does the 2nd gen MS3 not have problems with that breaking when paired with a heavy duty PP? I'm also concerned about the slave cylinder crapping out on me. Or that a first gen issue as well?

Pedals cracking only pertains to the 6.

[LSMS3TMB]

So essentially there are no causes for concern? I'm just being extremely anal because this is my daily and I don't have cash or time to throw away.

[REBarker]

Originally Posted by LSMS3TMB So essentially there are no causes for concern? I'm just being extremely anal because this is my daily and I don't have cash or time to throw away.

Other than there's not really a whole lot of data on it and exactly how they've been utilized, no not really.

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[dawgincustoms]

Here are a few customer cars and whats done.

Cpe atmosphere turbo kit on a speed6 that is freektuned with 20k miles in less then a year. "Over all I like the clutch. I get the chatter at idle in neutral with stock engine & trans mounts. I also get a vibration around 1800rpm, but that is probably the lightened fly wheel & that's easy to avoid. At first the pedal seemed super stiff. But, now I don't even notice it until I get in a car with a stock clutch. Works great & hopefully lasts a long time. I have over 20k miles on the clutch.

Gt3076 speed6 that has gone through 2 trans, a tc and still on the same clutch "About 18 k miles on my car, and it's been absolutely abused. Still holds strong. Appx 350 hp/tq"

Gt3076 twin scroll, built motor, speed6. "I only have 5 or 6k on the one in my 6 but those were all very abusive miles. The pedal isn't as stiff as the ACT 6-puck in my 3 and the engagement range is much longer but I can't say how it compares to stock."

Bnrs3 speed6 "I really like it. Grabs strong. have about 10-15k miles on mine, that includes about 5 autox sessions, 2 track days at mid-ohio, and plenty of street shennanigans. Mazdaspeed6, pushing between 300-350 awhp. There is some chatter when in neutral, but never has affected performance."

Those are just a few updated reviews after people have been runing my setup for a year or 2. Personally I abuse my speed6's more then anyone else and always on the same clutch setup. It sees road race time, street racing, dig racing, drag racing, drifting, gap trips, and hooning. Never an issue or premature wear problem. Theoretically there should be noechanical change between a 3 and a 6 however the hydraulic ststem in a 3 is a weaker system which has resulted in less pedal travel then a 6 and lower engagement. I always suggest replacing tour slave on a 3 or 6 to have a fresh unit with your fresh clutch. Also on a 6 to inspect the clutch pedal prior to installing a clutch because if the pedal is cracked you WILL ruin a clutch.

[Djohns]

Man id love to grab one in a group buy but there just isn't enough speed3s for me to pull the trigger. I'll just sitback and wait to hear results then hopefully pull the trigger on a full price one.

[HawkeyeGeoff]

Originally Posted by Djohns Man id love to grab one in a group buy but there just isn't enough speed3s for me to pull the trigger. I'll just sitback and wait to hear results then hopefully pull the trigger on a full price one.

Ill get a review on it for you when I do it.

It would be nice if the ms3 had a stainless line we could swap as well.

Sent while granny shifting, not doubling clutching like I should

[865ms3]

For those worried about the slave...they blow on acts too. For this reason I've been throwing a slave on every clutch job we've done. It's not fun when that thing blows apart.

[REBarker]

Originally Posted by 865ms3 For those worried about the slave...they blow on acts too. For this reason I've been throwing a slave on every clutch job we've done. It's not fun when that thing blows apart.

$100 now vs. Having to deal with that later sounds pretty worth it...besides, don't really wanna have to take it all apart again.

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[Realgib3]

Originally Posted by REBarker $100 now vs. Having to deal with that later sounds pretty worth it...besides, don't really wanna have to take it all apart again. Sent from my SM-G920P using Tapatalk

Slaves' like $40 man, you're gettin ripped off!

With that said, I think a lot of people think they have bad slaves when they don't. If/when you ever have the trans off/slave off, the boot will fill with fluid on the slave. Before you start to do anything with the new clutch/trans back together, you have to take the boot off and drain it, then start the bleeding process and you're good to go. That boot holds a surprising amount of fluid and pressure and will fuck with things.

[865ms3]

Originally Posted by Realgib3 Slaves' like $40 man, you're gettin ripped off! With that said, I think a lot of people think they have bad slaves when they don't. If/when you ever have the trans off/slave off, the boot will fill with fluid on the slave. Before you start to do anything with the new clutch/trans back together, you have to take the boot off and drain it, then start the bleeding process and you're good to go. That boot holds a surprising amount of fluid and pressure and will fuck with things.

All the ones I've messed with have exploded. We've put them back together, but they never hold. I about expanded my garage into my laundry room..... Haha

[dawgincustoms]

Here is a customers with a gen1 ms3 on a bnr s4 and built motor.

I've had it in my car for about 5k miles I would say(MS3). Took some getting used to the single mass flywheel but no big deal. Pedal is pretty heavy, when I jump in someones car with a stock clutch I think WOW that's really light. This has never been a problem unless I'm stuck in serious stop and go traffic. I'm currently maxed out on 93octane around the 340hp mark and no signs of slippage, it actually grabs very hard.
My biggest issue is the chatter which can be pretty loud if my car is warmed up and I'm sitting in a drive through. So much so that I have to push the clutch in so it stops to remind myself its just the clutch, I do have 80duro JBR mounts as well. Aside from that it does its job and I haven't had any real issues yet.

[Djohns]

Hmmm. My setup is going to be the exact same except gen 2 and more power... So what would the price be if we get this group buy going?

[dawgincustoms]

Sorry I have been sick the past few days. I could do a shipped price to lower 48 for $250 with a group buy of at least 3. If we hit like 8 I could drop that to $240 shipped to lower 48.

[kero]

If I get the heaver act flywheel, streetlite, and this clutch, how bad of a chatter are we talking? Are passengers going to think something is broken, are people going to tell you at a red light that your car is broken?
Or just some vibrations?

I ask because this 2nd gen speed3 will be daily driven by a lady and I can tell her to suck it up about the stiff pedal, but if she will be driving around with the noise of jingling keys in the bell housing it might be better to spend the $$ on the DMF

[Realgib3]

Alright so I've finally been able to get a couple hundred miles on this clutch and I love it.
A few things to note. GEN1 MS3.

1. BLEED the clutch very well. This should be a no-brainer but seriously, this will change how the clutch feels/engages/performs by a ton.

2. The pedal is smooth, very close to the ACT 6-puck, but the engagement of the clutch is considerably smoother than the 6 puck was.

3. Though I haven't put any real power to this yet, the clamping force feels like that of my twin-disk.

I'll update if anything changes, but for the money, I don't see this being beat.

[Djohns]

Originally Posted by Realgib3 Alright so I've finally been able to get a couple hundred miles on this clutch and I love it. A few things to note. GEN1 MS3. 1. BLEED the clutch very well. This should be a no-brainer but seriously, this will change how the clutch feels/engages/performs by a ton. 2. The pedal is smooth, very close to the ACT 6-puck, but the engagement of the clutch is considerably smoother than the 6 puck was. 3. Though I haven't put any real power to this yet, the clamping force feels like that of my twin-disk. I'll update if anything changes, but for the money, I don't see this being beat.

How about stiffness of the pedal? Suitable for around town or city driving still?

[broda]

Good to hear. This is something I would be interested in as well.

[Realgib3]

Originally Posted by Djohns How about stiffness of the pedal? Suitable for around town or city driving still?

Much much stiffer than stock. I can only compare it to the ACT's, which is a really common clutch on this platform. The stiffness doesn't bother me at all, just takes a minute to get used to after jumping out of my 6 with a stock clutch.

The pedals on the stock speeds are incredibly light, so I personally like the heavier pedal better. A lot of the reason I like it better is because it's a much smoother mesh area than stock. Stock, you can feel the real on/off area where the pedal pressure really changes on you. With this, it's consistent pedal top to bottom.

This is also way way way way way more streetable than my twin disk was.

[dawgincustoms]

Sorry gents. I have almost finished moving from my 1200 sq ft hole in the wall shop to my 5000 sq ft nice shop. If you gents are still interested I will get the group buy set up now that I have wifi setup and a my office is organized so I can keep track of everything.

[Mazdazilla6]

If it's going down in like 1-1.5 months then I'm in.

[fasteddie128]

I would be interested in the group buy as well. I am building a motor and want a fresh clutch while everything is apart.

[Boubou22]

I'm in for the group buy as well. I'll need a new clutch before summer

[speed3 britz]

Originally Posted by Mazdazilla6 If it's going down in like 1-1.5 months then I'm in.

I second this, I might have a few bucks by then

[Tomas]

Originally Posted by dawgincustoms Sorry gents. I have almost finished moving from my 1200 sq ft hole in the wall shop to my 5000 sq ft nice shop. If you gents are still interested I will get the group buy set up now that I have wifi setup and a my office is organized so I can keep track of everything.

Do you offer clutch disc resurfacing? As in resurfacing the disks you sell as well as resurfacing stock discs with a harder inorganic compound?