Big Gulp needs a clutch.... Suggestions? - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Suspension, Brakes, Drivetrain discuss the wondrous effects of boost and your miata...

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 04-26-2011, 11:44 PM   #21
y8s
2 Props,3 Dildos,& 1 Cat
iTrader: (8)
 
y8s's Avatar
 
Join Date: Jun 2005
Location: Fake Virginia
Posts: 19,038
Total Cats: 406
Default

if only someone had a used homebrew twin plate setup for less than half of the 949 setup.


wink wink.
y8s is offline   Reply With Quote
Old 04-26-2011, 11:57 PM   #22
Autobot Miata
Thread Starter
iTrader: (1)
 
Join Date: Dec 2009
Location: Knoxville, TN
Posts: 265
Total Cats: 0
Default

Tell me about this setup of yours?
viriiguy is offline   Reply With Quote
Old 04-27-2011, 12:19 AM   #23
y8s
2 Props,3 Dildos,& 1 Cat
iTrader: (8)
 
y8s's Avatar
 
Join Date: Jun 2005
Location: Fake Virginia
Posts: 19,038
Total Cats: 406
Default

if you dont mind a little servicing to get it up to 100%, it's a solid setup. not ideal for traffic-filled commuting due to the wear, but certainly daily driveable. I probably managed about 2 years of 17-25 miles of DC's traffic out of a set of disks.

http://gallery.y8s.com/miata/tilton

you can get a stiffer spring in the pressure plate to hold as much power as you want.
y8s is offline   Reply With Quote
Old 04-27-2011, 12:20 AM   #24
Elite Member
iTrader: (2)
 
Join Date: Jan 2007
Location: Los Angeles, CA
Posts: 8,782
Total Cats: 119
Default

Quote:
Originally Posted by y8s View Post
if you dont mind a little servicing
Who doesn't mind a little servicing?
Faeflora is offline   Reply With Quote
Old 04-27-2011, 12:25 AM   #25
Autobot Miata
Thread Starter
iTrader: (1)
 
Join Date: Dec 2009
Location: Knoxville, TN
Posts: 265
Total Cats: 0
Default

So it has to have a particular flywheel to work? How come?
And what does it need to get up to 100% and shoot me a PM on the price.
viriiguy is offline   Reply With Quote
Old 04-27-2011, 04:48 AM   #26
Supporting Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 14,353
Total Cats: 1,322
Default

It's smaller than stock diameter, you have to have the corresponding flywheel. Same reason you can't put a 1.6 clutch on a 1.8 flywheel.

I have a 949 cerametallic twin. The engagement is shorter than the ACT HD/6-puck it replaced, but it engages more smoothly. As a street clutch it's probably doable, but it would be rough - it's really designed as a race clutch, the kind of clutch that allows you to snap off seamless 150ms shifts without raping the synchros.

Honestly, you're probably going to need to be a bit more realistic about your goals - you can't have a featherlight, smooth-engaging clutch that will support 400whp unless you retrofit an LS clutch/fly into the car or something.
Savington is offline   Reply With Quote
Old 04-27-2011, 09:28 AM   #27
Autobot Miata
Thread Starter
iTrader: (1)
 
Join Date: Dec 2009
Location: Knoxville, TN
Posts: 265
Total Cats: 0
Default

Unfortunately, you are probably right.
viriiguy is offline   Reply With Quote
Old 04-27-2011, 09:31 AM   #28
Elite Member
iTrader: (11)
 
Join Date: Feb 2009
Posts: 2,982
Total Cats: 10
Default

Quote:
Originally Posted by Savington View Post
It's smaller than stock diameter, you have to have the corresponding flywheel. Same reason you can't put a 1.6 clutch on a 1.8 flywheel.

I have a 949 cerametallic twin. The engagement is shorter than the ACT HD/6-puck it replaced, but it engages more smoothly. As a street clutch it's probably doable, but it would be rough - it's really designed as a race clutch, the kind of clutch that allows you to snap off seamless 150ms shifts without raping the synchros.

Honestly, you're probably going to need to be a bit more realistic about your goals - you can't have a featherlight, smooth-engaging clutch that will support 400whp unless you retrofit an LS clutch/fly into the car or something.
Just to clarify Sav.....Are you saying that you would prefer the twin-disc to the ACT extreme six puck on the street? I'm asking because I have the ACT xtreme six puck setup and it is very livable on the street without a lot of stop and go. So if the twin is better, then it sounds like it would be nice. I guess what I am saying is that something in between a 6puck and an organic disk would be ideal. I like how the 6-puck grabs.
miatauser884 is offline   Reply With Quote
Old 04-27-2011, 10:43 AM   #29
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,819
Total Cats: 1,780
Default

**** a Puck.... on the street.
Braineack is online now   Reply With Quote
Old 04-27-2011, 10:48 AM   #30
Elite Member
iTrader: (11)
 
Join Date: Feb 2009
Posts: 2,982
Total Cats: 10
Default

Quote:
Originally Posted by Braineack View Post
**** a Puck.... on the street.
Tell us how you really feel.......out of coffee this morning????
miatauser884 is offline   Reply With Quote
Old 04-27-2011, 10:52 AM   #31
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,819
Total Cats: 1,780
Default

having run 4 different clutches on my car...its easy to say I liked the pucked, while grabbed wickedly awesome, the least.

would i put it in a race car? without a thought.

another street car? no way. I'll stick with something light that can hold torque like the FMII.



I'm not saying it was difficult to drive, but it took conscience thought every time I would go form a stop light or in traffic. I could drive it and engage it as smooth as a street disc, but I found myself almost challenging myself during each drive. The times I did get it wrong, you look like a fool and caused the rear diff to make tons of noise.

Right now my clutch engages like stock and holds all my torque, so why would I want something that removes drivability and removes focus from my day dreaming into my left foot?
Braineack is online now   Reply With Quote
Old 04-27-2011, 12:59 PM   #32
y8s
2 Props,3 Dildos,& 1 Cat
iTrader: (8)
 
y8s's Avatar
 
Join Date: Jun 2005
Location: Fake Virginia
Posts: 19,038
Total Cats: 406
Default

Quote:
Originally Posted by Savington View Post
It's smaller than stock diameter, you have to have the corresponding flywheel. Same reason you can't put a 1.6 clutch on a 1.8 flywheel.

I have a 949 cerametallic twin. The engagement is shorter than the ACT HD/6-puck it replaced, but it engages more smoothly. As a street clutch it's probably doable, but it would be rough - it's really designed as a race clutch, the kind of clutch that allows you to snap off seamless 150ms shifts without raping the synchros.

Honestly, you're probably going to need to be a bit more realistic about your goals - you can't have a featherlight, smooth-engaging clutch that will support 400whp unless you retrofit an LS clutch/fly into the car or something.
nah I'd stand by the organic twins with a firmer pressure plate for a street car. again with the caveat not to drive it in traffic every day. repeatedly stopping and starting over a short period without a chance to cool kills the floaters due to warpage. it would last much longer if you dont stop/start more than say twice per minute for periods longer than 10 minutes (i'm totally guessing what the conditions of traffic jams are).

wear and driveability are truly a non-issue in my experience.

I actually started out with the cerametallic disks on my twins.

OH

MY

GOD

that sucked. great on track. but people laughed at me on the street. it was easier to spin the tires on a stock motor than to slip the clutch. so I did.

...

as for my used setup, at the very minimum it needs disks, and floater and pressure plates... and maybe a scuff on the flywheel.

at the most, it needs a new flywheel friction plate, pressure plate rebuild (might as well upgrade too), floaters, and disks. I don't have the costs for this stuff handy but for ALL of it, it might run 2-300 dollars.

I already have the custom pivot and push rod (ugly but functional push rod!) done.

and I'd probably sell the parts as-is for 350 shipped maybe?

would more people be likely to buy this thing if I did all the hard work and just sold it ready to install?
y8s is offline   Reply With Quote
Old 04-27-2011, 01:09 PM   #33
Elite Member
iTrader: (11)
 
Join Date: Feb 2009
Posts: 2,982
Total Cats: 10
Default

Quote:
Originally Posted by y8s View Post
nah I'd stand by the organic twins with a firmer pressure plate for a street car. again with the caveat not to drive it in traffic every day. repeatedly stopping and starting over a short period without a chance to cool kills the floaters due to warpage. it would last much longer if you dont stop/start more than say twice per minute for periods longer than 10 minutes (i'm totally guessing what the conditions of traffic jams are).

wear and driveability are truly a non-issue in my experience.

I actually started out with the cerametallic disks on my twins.

OH

MY

GOD

that sucked. great on track. but people laughed at me on the street. it was easier to spin the tires on a stock motor than to slip the clutch. so I did.

...

as for my used setup, at the very minimum it needs disks, and floater and pressure plates... and maybe a scuff on the flywheel.

at the most, it needs a new flywheel friction plate, pressure plate rebuild (might as well upgrade too), floaters, and disks. I don't have the costs for this stuff handy but for ALL of it, it might run 2-300 dollars.

I already have the custom pivot and push rod (ugly but functional push rod!) done.

and I'd probably sell the parts as-is for 350 shipped maybe?

would more people be likely to buy this thing if I did all the hard work and just sold it ready to install?

If I were looking, I'd rather spend more money and have you do the hard work.
miatauser884 is offline   Reply With Quote
Old 04-27-2011, 03:10 PM   #34
y8s
2 Props,3 Dildos,& 1 Cat
iTrader: (8)
 
y8s's Avatar
 
Join Date: Jun 2005
Location: Fake Virginia
Posts: 19,038
Total Cats: 406
Default

so what if I said 700 shipped ready to run?
y8s is offline   Reply With Quote
Old 04-27-2011, 03:19 PM   #35
Supporting Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 14,353
Total Cats: 1,322
Default

Quote:
Originally Posted by djp0623 View Post
Just to clarify Sav.....Are you saying that you would prefer the twin-disc to the ACT extreme six puck on the street? I'm asking because I have the ACT xtreme six puck setup and it is very livable on the street without a lot of stop and go. So if the twin is better, then it sounds like it would be nice. I guess what I am saying is that something in between a 6puck and an organic disk would be ideal. I like how the 6-puck grabs.
I had an ACT HD/6puck w/ stock FW, put 30k street miles on it before jumping to the twin. I've driven an ACT XT 6-puck with a LWFW and it was nearly undriveable IMO - the easiest way to start that car was to just dump the clutch from 2.5k and let the rears spin a couple times.

The engagement on the 6-puck is sharper, but over a longer pedal travel area - the twin is a smoother engagement when it happens, but the pedal travel is SUPER short, which makes it a little tough to drive smoothly on the street. I can still slip the cerametallic discs up onto a trailer without an issue, though.

I've driven an organic 7.25" single disc - totally streetable. I bet the 7.25 organic twin is just as easy.
Savington is offline   Reply With Quote
Old 04-27-2011, 04:56 PM   #36
Autobot Miata
Thread Starter
iTrader: (1)
 
Join Date: Dec 2009
Location: Knoxville, TN
Posts: 265
Total Cats: 0
Default

Does the 949 Twin clutch have the same warpage issue that yours has y8s?

Mind you, when I got Big Gulp last year, the clutch had already been severely abused at that point and would slip occasionally, especially when running it REALLY hard....
But I did like the feel of the CF DF PP and the ACT HD Organic disc. Just too bad it can't hold the power.

Last edited by viriiguy; 04-27-2011 at 05:15 PM.
viriiguy is offline   Reply With Quote
Old 04-27-2011, 06:19 PM   #37
y8s
2 Props,3 Dildos,& 1 Cat
iTrader: (8)
 
y8s's Avatar
 
Join Date: Jun 2005
Location: Fake Virginia
Posts: 19,038
Total Cats: 406
Default

I seriously doubt anyone's driven 15-20,000 miles on a 949 twin plate organic clutch yet.
y8s is offline   Reply With Quote
Old 04-27-2011, 08:40 PM   #38
Autobot Miata
Thread Starter
iTrader: (1)
 
Join Date: Dec 2009
Location: Knoxville, TN
Posts: 265
Total Cats: 0
Default


I didn't know how long they had been out.
viriiguy is offline   Reply With Quote
Old 04-27-2011, 08:45 PM   #39
Senior Member
iTrader: (5)
 
Join Date: Sep 2009
Location: Lompoc, CA
Posts: 579
Total Cats: 12
Default

I seriously doubt even the organic twins would last 20k miles with the way Viriiguy drives that car. I'm not hating, just saying. Even an over built clutch can't stand ***** to the wall for too terribly long.
baron340 is offline   Reply With Quote
Old 04-27-2011, 08:56 PM   #40
Autobot Miata
Thread Starter
iTrader: (1)
 
Join Date: Dec 2009
Location: Knoxville, TN
Posts: 265
Total Cats: 0
Default



No hate taken. I drive it sanely when I am not trying to either show it off or kill it.
But it sure is fun to beat on the ole girl.
viriiguy is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Need help - Stock Balancer and Fastforward overlay pulleys Frank_and_Beans Supercharger Discussion 13 09-12-2016 09:17 PM
My solution for Oiltemp and Oilpressure input into Megasuirt (MS3) Zaphod MEGAsquirt 41 01-24-2016 01:25 PM
New M62 Miata owner Pist0n Meet and Greet 4 10-01-2015 09:18 PM
1996 Turbo Build Goldwar DIY Turbo Discussion 2 09-29-2015 10:20 AM
Dsm t25 big16g or somethig else? karcher DIY Turbo Discussion 0 09-06-2015 06:02 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 01:26 PM.