TY's Turbo clutch and flywheel thoughts expanded

[drift freaq]

Ok TY got and idea about clutch setups the other day. He was basically looking at 280zx Turbo clutch and flywheel setups for a firmer clutch setup for his Turbo.
In it he mentioned that the 91 and up hardbody pickup had a 240mm clutch versus the 225 mm clutch of the 240sx KA24e and DE.
Well this got me thinking seeing as I am doing a auto to 5 speed swap right now and I am going Turbo later.
So I went to the yards and got a Truck flywheel . It is the same size as ours and the same thickness. the only thing different was it did not have the centering guide pin hole.
this is not a real problem just have the machine shop drill it when they surface it.
Next step I took was to take the Flywheel to Top End Performance to have them surface it , lighten it and balance it.
Ok this is starting to get cool . Its going to be done next week and it will come back wieghing in at 14lbs. cost $150
hmmm much cheaper than a Fidanza
Next was the clutch. I researched this a bit .
I found a company called LUK they are the worlds largest Automotive OE and aftermarket clutch manufacture (they are european)
They have a heavy duty line called Goldline.
They do have a clutch kit in this line for the truck.
Ok this clutch has 1,400 pounds of clamping force and 500 ft lbs of torque holding. HMMMMMM almost twice as much clutch as an ACT stage two. cost $150 pressure plate , driven disc and throwout bearing.
so Next week I am putting this setup in my car. I will be ready for my Turbo setup clutch and flywheel wise .

peaceout

[White240sx]

Good work, and I hope it works out for you. But I would like to pursue this the other way.:D

This didn't seem to gain much of a fallowing on FA, so maybe I will float the theory here.:D

Did LUK have a 200mm clutch application? I’m thinking for minimizing drivetran inertia it would be best to go with the lightened flywheel and 200mm clutch. My only worry is that the 200mm clutch won't be able to hold a prepped N/A car (plus ACT doesn't offer a 200mm RWD Nissan clutch application).

*BTW is the LUK website www.dialaclutch.com? I’m looking on it and a 8"(200mm?) clutch for a '77-'81 200sx is like $90. I am wondering if this is the lightweight option to go after (cheap as well).

DPro: did you email the company for the torque specs, or are they listed somewhere? Your help is much appreciated here, you are pioneering something that is gonna be pretty big in a couple years.;)

[drift freaq]

white 240sx inquires...
Did LUK have a 200mm clutch application? I’m thinking for minimizing drivetran inertia it would be best to go with the lightened flywheel and 200mm clutch. My only worry is that the 200mm clutch won't be able to hold a prepped N/A car (plus ACT doesn't offer a 200mm RWD Nissan clutch application).
______
I am not sure, I do know if you are going to go 200mm clutch then get the 2000 roadster clutch from Nissan competition. Or even your local Nissan dealer. It was the hot setup when I was in high school and driving a 510. It is one smokin factory clutch.
-dpro

*BTW is the LUK website http://www.dialaclutch.com? I’m looking on it and a 8"(200mm?) clutch for a '77-'81 200sx is like $90. I am wondering if this is the lightweight option to go after (cheap as well).
----
Ok these guys are LUK resellers on the Web . MY buddy Gary with the RB25 in a 95 240sx has a Transmission shop in Commerce . I found the Goldline on the web and he got me LUKs corporate phone number because he has used their clutchs for jobs before. IMO if you get the truck flywheel and lighten it your better off because its the same size as ours it just has a larger surface area . Yes you could go smaller diameter clutch to cut down a little on inertia weight but then you &nbsp;are going to have to go research the whole &nbsp;flywheel thing i.e. will work in my car thing <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/biggrin.gif" border="0" valign="absmiddle" alt=':D'> . Of course that is exactly what me and TY did. you have to ask yourself these questions
A: is the innerbore diameter the same
B: si the ring gear diameter the same
C: is the spline teeth number the same for the driven disk i.e. will it fit our trannys
D: is the thickness of the flywheel the same at the center as our stock ones
E: is the bolt pattern the same

this is your homework <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/biggrin.gif" border="0" valign="absmiddle" alt=':D'>

DPro: did you email the company for the torque specs, or are they listed somewhere? Your help is much appreciated here, you are pioneering something that is gonna be pretty big in a couple years.
-------
well actually I called LUK up . They were not even supposed to give me the torque specs. It is basically company policy not to reveal these things to the general public i.e. trade secrets.
I would put this in the catagory of they know they make a clutch that smokes the competition and they don't want the competition knowing just how tough their clutch really is.
OH , point of interest . There is no goldline clutch for our cars just the truck at this time. No problem for me though :big grin:
I did also check the Daiken/exedy specs which are on the web except they are in kg and they do not state if its a clamping force rating or a holding torque rating . Still looking for an accurate conversion table to figure it out.
oh yeah, another side not while I was doing this I found a site that does kg/mm to lbs/inchs conversion for springs.

anyways thats it for know.

[drift freaq]

white 240sx inquires...
Did LUK have a 200mm clutch application? I’m thinking for minimizing drivetran inertia it would be best to go with the lightened flywheel and 200mm clutch. My only worry is that the 200mm clutch won't be able to hold a prepped N/A car (plus ACT doesn't offer a 200mm RWD Nissan clutch application).
______
I am not sure, I do know if you are going to go 200mm clutch then get the 2000 roadster clutch from Nissan competition. Or even your local Nissan dealer. It was the hot setup when I was in high school and driving a 510. It is one smokin factory clutch.
-dpro

*BTW is the LUK website http://www.dialaclutch.com? I’m looking on it and a 8&quot;(200mm?) clutch for a '77-'81 200sx is like $90. I am wondering if this is the lightweight option to go after (cheap as well).
----
Ok these guys are LUK resellers on the Web . MY buddy Gary with the RB25 in a 95 240sx has a Transmission shop in Commerce . I found the Goldline on the web and he got me LUKs corporate phone number because he has used their clutchs for jobs before. IMO if you get the truck flywheel and lighten it your better off because its the same size as ours it just has a larger surface area . Yes you could go smaller diameter clutch to cut down a little on inertia weight but then you &nbsp;are going to have to go research the whole &nbsp;flywheel thing i.e. will work in my car thing <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/biggrin.gif" border="0" valign="absmiddle" alt=':D'> . Of course that is exactly what me and TY did. you have to ask yourself these questions
A: is the innerbore diameter the same
B: si the ring gear diameter the same
C: is the spline teeth number the same for the driven disk i.e. will it fit our trannys
D: is the thickness of the flywheel the same at the center as our stock ones
E: is the bolt pattern the same

this is your homework <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/biggrin.gif" border="0" valign="absmiddle" alt=':D'>

DPro: did you email the company for the torque specs, or are they listed somewhere? Your help is much appreciated here, you are pioneering something that is gonna be pretty big in a couple years.
-------
well actually I called LUK up . They were not even supposed to give me the torque specs. It is basically company policy not to reveal these things to the general public i.e. trade secrets.
I would put this in the catagory of they know they make a clutch that smokes the competition and they don't want the competition knowing just how tough their clutch really is.
OH , point of interest . There is no goldline clutch for our cars just the truck at this time. No problem for me though :big grin:
I did also check the Daiken/exedy specs which are on the web except they are in kg and they do not state if its a clamping force rating or a holding torque rating . Still looking for an accurate conversion table to figure it out.
oh yeah, another side not while I was doing this I found a site that does kg/mm to lbs/inchs conversion for springs.

anyways thats it for know.

[White240sx]

</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote </td></tr><tr><td id="QUOTE">Quote: from drift freaq on 11:32 am on Jan. 5, 2002

A: is the innerbore diameter the same
B: si the ring gear diameter the same
C: is the spline teeth number the same for the driven disk i.e. will it fit our trannys
D: is the thickness of the flywheel the same at the center as our stock ones
E: is the bolt pattern the same

this is your homework <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/biggrin.gif" border="0" valign="absmiddle" alt=':D'></td></tr></table><span id='postcolor'>

Well I did a little digging and found out this…
The 200mm unit is a 6-bolt design, but doesn’t appear to accept the brass keying-pin on the KA crank. Finding the spline teeth number has been a difficult endeavor though, it may be the time now to hit the field and go searching.;)

</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote </td></tr><tr><td id="QUOTE">Quote: from drift freaq on 11:32 am on Jan. 5, 2002

I did also check the Daiken/exedy specs which are on the web except they are in kg and they do not state if its a clamping force rating or a holding torque rating . Still looking for an accurate conversion table to figure it out. </td></tr></table><span id='postcolor'>

It seems as if 200mm clutches are a lot harder to find than 240mm clutches…<img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/wink.gif" border="0" valign="absmiddle" alt=';)'>

</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote </td></tr><tr><td id="QUOTE">Quote: from drift freaq on 11:32 am on Jan. 5, 2002
oh yeah, another side not while I was doing this I found a site that does kg/mm to lbs/inchs conversion for springs.</td></tr></table><span id='postcolor'>

55.88 is the magic number for lb/ft to kg/mm unit conversion...:biggrin:

[drift freaq]

white240sx writes......
Finding the spline teeth number has been a difficult endeavor though, it may be the time now to hit the field and go searching.

----
I can check that at Garys shop this week . It is in his application manuals.

-----
It seems as if 200mm clutches are a lot harder to find than 240mm clutches…
-----
Yes that much is true . Its kinda of like 4 lug wheels .
----
55.88 is the magic number for lb/ft to kg/mm unit conversion...


cool thanks


may the drift be with you, dpro

[drift freaq]

well guys got my flywheel back from Top End Performance today all 17.9 pounds of it . Now keep in mind the truck flywheels are a little heavier than ours so it is lightened and it is about 6-7 pounds lighter than our stock flywheels . This is going to make a good 240mm &nbsp;clutch flywheel setup for &nbsp;street Turbo's lighter than stock but not taking to much weight off. which &nbsp;can causes you &nbsp;to lose some of your torque.
It goes in the car next monday with the LUK clutch &nbsp;I will keep you guys informed .

hehehe, I've gone extreme with a 8lb flywheel!!!

T.Y.

[mistert]

DF i know 14 isnt too extreme on the lightening site but you're going to want to have that heat treated if you plan on using a lightened stock flywheel. if you dont its likely to shatter under too much power (thats why you should get an aftermarket clutch to begin with). its generally ok to use a lightened stock flywheel but again ALWAYS have it heat treated, because its just too much a risk, its not worth losing your entire transmission if something goes wrong. you could also consider having it cryo treated instead, which would be much better in the long run, but im not sure how much this would cost

[drift freaq]

hey Mistert, The flywheel was done by Top End Performance and they do know what they are doing. On top of that the LUK Goldline is an aftermarket clutch it is actually a High performance truck clutch. It has 1,400 lb's of clamping force with 500 lb's of Torque holding. That should be sufficent :briggrin:

P.S. T.Y. &nbsp; you are a freak :briggrin: &nbsp;take care man

[Grant]

I want ACT....

(Edited by Grant at 4:34 pm on Feb. 9, 2002)

[drift freaq]

ok guys . Flywheel is in the car :biggrin: clutch is in the car though right now I am running a Heavy duty daiken for the truck because the Luks were on back order. This is still a very beefy 240mm clutch and it feels nice. The engine revs great with this setup it is quicker in the rev up. Well thanks to T.Y. and my research I have a new setup for KA24De+T owners . As soon as I break the clutch in the I will let you guys know how well this baby really holds .