Tilton 5.5” pressure Plate

[Rick Iverson]

Gents;

My new QS long rod is equipped with a minimum weight flywheel, machined to accept a Tilton 5.5” clutch assembly.

I purchased a new Tilton grey spring pressure plate assembly recommended for cars producing up to 250 lb-ft of torque, but I need everyone’s advice if this is the best path, please.

[schiconst]

Rick, I had Taylor replace my 5.5" PP with new springs and they put the weaker springs in back when they were in business. It didn't have enough pressure. It slipped and I had to send it back for the stiffer ones. It was for my FF. I would have to call Scotty Young to see what color the weaker springs were. I think they were Grey. I wouldn't use the softer ones again. Don't know if this helped. Good question though!! Wish I knew before I installed it... John FF69

[Phil Creighton]

orange is softer, then Grey and then double grey
Gray is fine for FC - what we have used for years (and I was one of Tiltons bigger distributors at one time)
Phil

[Rick Iverson]

Rick, I had Taylor replace my 5.5" PP with new springs and they put the weaker springs in back when they were in business. It didn't have enough pressure. It slipped and I had to send it back for the stiffer ones. It was for my FF. I would have to call Scotty Young to see what color the weaker springs were. I think they were Grey. I wouldn't use the softer ones again. Don't know if this helped. Good question though!! Wish I knew before I installed it... John FF69

orange is softer, then Grey and then double grey
Gray is fine for FC - what we have used for years (and I was one of Tiltons bigger distributors at one time)
Phil

Gent;

Good stuff here. This is mine:



Almost a flat black, but probably closer to double grey. Thoughts?

[Bob L.]

You do understand it's the spring color, not the cover color, they're talking about?

Bob L.

[Rick Iverson]

Bob, I do.

[Rick Iverson]

orange is softer, then Grey and then double grey
Gray is fine for FC - what we have used for years (and I was one of Tiltons bigger distributors at one time)
Phil

Phil;

Judging from my photo, may I presume my PP is a double grey?

[scotty82]

It is not the pressure plate that is the concern here , those will be either High ratio or Ultra high ratio.
It is the spring . They are rated in colors that are etched into the finger of the clutch
Grey will be have a torque capacity of 250lb-ft with a release load of 850lb..
I re-spring these with a White spring 150lb-ft with a release load of 480 lb
A Grey spring clutch will destroy the main bearings on a 1600 in no time at all

Single disc 5.5
White=150lb-ft 480 lb release load
ORA = 200lb-ft 510 lb release load
GREY =250lb-ft 850 lb release load





scotty

[Rick Iverson]

Scotty;

This is a new QS long rod, Elgin cam, big carb 2L Pinto. Advise, please?

I need some parts from you as well.

It is not the pressure plate that is the concern here , those will be either High ratio or Ultra high ratio.
It is the spring . They are rated in colors that are etched into the finger of the clutch
Grey will be have a torque capacity of 250lb-ft with a release load of 850lb..
I re-spring these with a White spring 150lb-ft with a release load of 480 lb
A Grey spring clutch will destroy the main bearings on a 1600 in no time at all

Single disc 5.5
White=150lb-ft 480 lb release load
ORA = 200lb-ft 510 lb release load
GREY =250lb-ft 850 lb release load





scotty

[DaveW]

...A Grey spring clutch will destroy the main bearings on a 1600 in no time at all

Single disc 5.5
White=150lb-ft 480 lb release load
ORA = 200lb-ft 510 lb release load
GREY =250lb-ft 850 lb release load

scotty

Mains or thrust bearing? I think you mean thrust bearing. The mains shouldn't care about a load along the crank.

[stonebridge20]

Mains or thrust bearing? I think you mean thrust bearing. The mains shouldn't care about a load along the crank.

Cut him some slack. He's a gearbox guy. He doesn't know poop from shinola about engines. [emoji3]

[bob darcey]

https://www.youtube.com/watch?v=YTHL0y6xvLE

[stonebridge20]

https://www.youtube.com/watch?v=YTHL0y6xvLE

So.....I got banned here for a week for circumventing curse words a couple years back. I figured the word poop was acceptable so I rolled the dice and went with it.

The week off from here gave me time to find my special purpose.

[bob darcey]

The week off from here gave me time to find my special purpose.

I won't ask.

[Rick Iverson]

Cut him some slack. He's a gearbox guy. He doesn't know poop from shinola about engines. [emoji3]

https://www.youtube.com/watch?v=YTHL0y6xvLE

So.....I got banned here for a week for circumventing curse words a couple years back. I figured the word poop was acceptable so I rolled the dice and went with it.

The week off from here gave me time to find my special purpose.

I won't ask.

And back to the question, please.

Scotty, if I may trouble you?

[scotty82]

Rick.... call me or shoot an e mail. I am in the shop a lot right now so I might not make it to the phone

972-7374-8047
scotty@sy-gearboxes.com

[scotty82]

Cut him some slack. He's a gearbox guy. He doesn't know poop from shinola about engines. [emoji3]

You are correct sir.... But its always the guy on the podium thanking the motor guy...... never the gearbox guy.