Wilwood 3/4 dia. Clutch Master

T

texastigert

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Quick question on the: Wilwood 3/4 dia. Clutch Master cylinder.
I have seen internet pictures of Tigers with the Wilwood Clutch
Master Cylinders. Is this a straight up, bolt on? Has anyone installed this unit on their Tiger?? I'm tired of rebuilding my Girling unit. Please advise.
Thanks, Tim
 
Push Harder

texastigert said:
Quick question on the: Wilwood 3/4 dia. Clutch Master cylinder.
I have seen internet pictures of Tigers with the Wilwood Clutch
Master Cylinders. Is this a straight up, bolt on? Has anyone installed this unit on their Tiger?? I'm tired of rebuilding my Girling unit. Please advise.
Thanks, Tim
Click to expand...

Tim: The stock master is 5/8" for pedal effort advantage. If you increase the master bore size to 3/4", the pedal effort gets aggravating over time. Best to re-line a stock unit with lifetime brass and be done with it all. my 2-1/2 cents
 
Wilwood 5/8 bore Clutch Master

Here, I believe is a replacement for our clutch masters that always go out due to rubbers. Again, there are pictures on the internet showing Tigers with these units being used for the clutches. Wish I could hear from someone who is using them. Bore diameters that are available: .625 , .700, .750
Wilwoods Integral Reservoir Compact Master Cylinder, commonly known as the Girling Style offers a 1.4oz reservoir, and 1.4 stroke, perfect for clutch and other low volume applications. Cost: $49.95 Summit Racing. Warning!! not for the pure at heart!
 
I plan to use the Wilwood dual reservoir master for for my brake upgrade. They only make it in 1" bore but with Brembos from a Porsche it will need more fluid volume than stock.

I also have that Wilwood (Girling style) in 3/4" bore for a hydraulic throwout bearing use when I do a motor upgrade to a 6 bolt 302 or 347.

I have strong legs, if pedal pressure is an issue (tic).
 
5/8 bore WilWood Clutch Master, Installed!! -UPDATE!!!!

For those of you, who are not the purist at heart, and don't mind up grades. I finally had time to install my 5/8 in. bore diameter Wilwood Clutch Master. It was a "Bolt in" with only a few mods. 1). I shorten the pushrod shaft, by 3/4 inch. 2). I had to grind out the inside of the Aluminium spacer plate, that bolts against the firewall, clearance for the rubber dust boot. The rest was bolt in, even the stock hydraulic fittings are the same. (3/8 x 24). I did have to manufacture a new clevis adapter. What I did was take an old pushrod and cut the shaft off, then drilled a 5/16 hole thru the clevis, then welded a new grade 8, 5/16 x 24 nut, and done! Easy!! Wilwoods unit only cost, $49.00 and you won't have to rebuild the unit everytime you want to drive your Tiger. Keep'm driving!! Cheers, Tim

note! attached are a few pictures
 
Well done, Tim.
Good to know what will work and how to adapt it to our cars for when the OEM parts become unavailable.
Cheers, -Kevin
 
Texastigert:

You are using the Wilwood dual reservoir master in pic#1 that I plant to use. Did you convert to rear discs or install larger front brakes? How is the pedal effort with that unit?
 
1980-1981 Subaru tandem master cyl.

PITT40,

I'm using a 1980-1981- Subaru 1600 DL master cyl. - with a 13/16 in. bore diameter. P/N: 130.47005 ( for my Brakes)
Pedal is firm, works super, needs no portioning valve. I'm also using Dale's mustang rear disc calipers, and with stock front calipers.

cheers, Tim
 
PITT40 - yes, brake master is a 1980-1981 subaru 1600 DR -13/ 16 in. bore master cylinder -purchased on eBay.


and the Clutch is a Wilwood 5/8 in bore - Clutch master cylinder purchased from Summit racing.

Tim
 
Tex- Thanks for answering Pitt's question about the Subaru brake master. I have been dealing with high pedal pressure in my Cobra using the Wilwood 1" unit. Will buy one of the Subaru's. thanks, Bill.
 
Caution

bill37341 said:
Tex- Thanks for answering Pitt's question about the Subaru brake master. I have been dealing with high pedal pressure in my Cobra using the Wilwood 1" unit. Will buy one of the Subaru's. thanks, Bill.
Click to expand...

Be careful of that. Do some math on fluid volume & stroke to make certain there is enough for your caliper requirements.
 
Doing the math.

0neoffive said:
Be careful of that. Do some math on fluid volume & stroke to make certain there is enough for your caliper requirements.
Click to expand...

I agree, the math needs to be done, in my case I bought a complete setup from Dale's All British Restoration. I bought the Subaru master cylinder and Mustang rear disc setup from Dale. Dale's math = my safety, - frustration. Tim
 
0neoffive:

That was my first thought before I saw your post. I using Brembos from a Porsche, so that may not work for me. But I will do the math to see if I can.
 
What are the stock Tiger brake & clutch master bore sizes?

I called Wilwood to ask about masters and they wanted to know the pedal ratio for a pressure calculation. Anyone now that?
 
Master Bores

I believe the stock clutch master cylinder bore is 5/8" and the stock brake master cylinder bore is 7/8".

David
 
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