Morten_LS3_R32

Hi!
Im building a Skyline R32 with a LS3 engine and T56 transmission.
If you want you can read more here:
Skylines Australia
And Im not from Australia, but from Norway

The reason for me to write here is that I have some questions.
1. What is the recomended size of Clutch Master Cylinder?
I am using a Pedal box, as this is a track car only, but I do not know the recomended Size. Choices are:

• Bore: 0.625in, Stroke: 1.300in
• Bore: 0.750in, Stroke: 1.100in
• Bore: 0.875in, Stroke: 1.200in
• Bore: 1.000in, Stroke: 1.000in
• Bore: 1.063in, Stroke: 1.000in

2. What clutch is recomended for use in racing?
Since Im going for aproximly 550-600rwhp and 550-600lbsft torque, and using it to drift with, witch is a tremendusly hard on the clutch, I was wondering if I should use a dual plate like Fidanza Twin Disc Clutch Kits, http://store.summitracing.com/partde...5&autoview=sku

Or do anyone else have a recomandation?

rao

iTrader: (18)

For any kind of stock clutch set up ou need at least 0.75" and you don't want more than 1.00" bore. As for the stroke, I would get the longest you can and use a stop to reduce the travel if necessary.

Sounds like a fun car.

BMR Sales2

iTrader: (40)

That thing is going to be serious

icantdrift

iTrader: (1)

i run the 7/8" (.875") bore 1.2 stroke wilwood in my LS1 240sx and it works great.

http://www.wilwood.com/Products/006-...CRMC/index.asp

Morten_LS3_R32

Tanks. I hope It will be with all the money and work thats going into this car...
I will run a Race Setup with a TwinPlate/TripplePlate or a sereius High Performance Single Plate, but Im not shure whats best. Im leaning towards Twinplate mentioned in first post.

Tanks!

This was one of my choices, and since Im using a Willwood Pedal Box, I can only use Wilwood Master Cylinders, and it is right in the middle of what Rao said.

If anyone else has a other suggestion, please tell me, and please tell me why, so it will be easier to make a desission, and please use the voting.

chuntington101

fantastic project! please keep us posted.

Chris.

lukem80

iTrader: (4)

thats a badass shop you have!!!!

rao

iTrader: (18)

I went back through my old notes on this - you could go with as small as a 5/8" bore, but you will need a lot of stroke.

BMR Sales2

iTrader: (40)

You have any pics of the setup? I am going to be running the same setup in an s13 and was just curious to see pics of one done.

Kamin

run what most of us run a 1" stroke .750 bore. im using a wilwood master on mine and its worked fine (except for when a master failed 5 months into the swap)

as for a clutch, just get a GOOD sprung puck setup from somebody like RPS or McLeod. im making about 400 at the wheels and am running a spec 6 puck and have never had a problem. car is a full on drift car.

p.s. you wont be using the clutch as much as you think with all that torque i rarely have to clutch kick anymore haha

Morten_LS3_R32

Hi!
Thanks for the help.
Currently there seams to be three to choose from:
Bore: 0.625in, Stroke: 1.300in, Volume: 6.54ml
Bore: 0.750in, Stroke: 1.100in, Volume: 7.96ml
Bore: 0.875in, Stroke: 1.200in, Volume: 11.82ml

There is a lot more volume difference between the second and third choice than the first and second.

The first has a long stroke, but a realy small bore, but the second has a short stroke but ok bore.
Thats why I was thinking of the third one, wich has a long stroke, and big bore.

But remember, Im probarbly going to run a racing twin plate clutch setup for a LS7 or something like that.

What do you think?

GIGAPUNK

iTrader: (2)

I'm running the 0.75" wilwood for my LSx 240sx project. And just drove RuthlessLS2's with the same master. His with a blown stock clutch was coming on quite a ways off the floor. So I don't think that I'd go bigger.

Morten_LS3_R32

Hi!
I just found another cylinder from wilwood that I can use, it has 1.4" stroke, and 0.750 bore.
and It ads up like this:

Bore: 0.625in, Stroke: 1.300in, Volume: 6.54ml
Bore: 0.750in, Stroke: 1.100in, Volume: 7.96ml
Bore: 0.750in, Stroke: 1.400in, Volume: 10.14ml (The new one)
Bore: 0.875in, Stroke: 1.200in, Volume: 11.82ml

I would think this is big enough in volume to handle a racing clutch, but sensitive enough because of its small bore and long stroke.
What do you people think?

sultan(ZR-1)KSA

any bore ant stroke as long as you do it

LS1LT1

iTrader: (16)

For sure, I like the sound of this project.

NemeSS

iTrader: (127)

any more pics of the skyline

Morten_LS3_R32

If you look at the thread called Skyline R32 LS3, Build Thread, you will see a lot of pictures. This thread is only about what size of master cylinder to choose for clutch and what clutch is recomended.

Morten_LS3_R32

Hi everyone!
I would prefere that all questions about the build it self is done in this thread:
Skyline R32 LS3, Build Thread
Since this thread is only about what Clutch Master Sylinder to chose and Clutch to choose.

The other thread also contains a lot of pictures...