clutch talk

[poppa]

Which clutch design is best for a street/crusier,three finger or diapham? I will be using as much of the stuff(stock) I have as possible. What would you keep-what would you change?? Hopefully going to be around a 500 stroker. In the "info gathering mode" .

[Cooter]

All I can offer is my own personal experience  dealing with three finger clutches...I ran one and it did "ok" for the most part, but I was told they are the "End all" when it comes to holding power...I found this NOT to be the case at all. I began to experience slipping when speed shifting with a mild 440.(DOT tires)...
I removed the three finger, installed a diaphram and soon began to experience the same thing...All these were STOCK replacement clutches mind you.

Some say the three finger has ALOT of pedal effort. I found this to be mostly true over the diphram style clutch. BOTH slipped in stock form..I then upgraded to a Mcleod "Street/strip" Clutch ($400) and haven't had any problems with this diaphram style clutch slipping. However, I haven't wanted to try the three finger in a racing clutch for fear of huge pedal effort, when a diaphragm style racing clutch works ok.

Hope this helps.

[morepower]

deffinately going to have to step up the clutch from stock. I'd say diaphragm clutch also.

[70sixpkrt]

I use the Mcleod borg and beck style street/strip setup. Disc 260151, pp 360153, to bearing 16061.

[Chryco Psycho]

I an no fan of the diaphragm , these cars are not designed to use them , the McLeod 3 finger BB/ Long type has a lighter pedal pressure & huge holding power as the coil springs can be swapped to change pressure , if that  will not hold the power McLeod has the a street twin dual disc with double the surface area which can hold close to 1000 hp
the problem with the diaphragm is two fold , first whatever the spring / plate thickness is is all the spring pressure you can create for holding power , second once the spring/ plate is inverted to release the clutch it will not nessisarily return . I have had this happen shifting at high rpm where you push the clutch & shift & the pedal stays on the floor