SBC Dual Disk; 3600lb 6cb

[Patriot_RAM]

Hey,



I ordered one of these and am going to have Floor-It Diesel install it. What are your thoughts on this clutch? I don't tow, but I plan on twins with the EZ/PMCR. I will do some drag racing and maybe a sled pull once in a blue moon. Peter thinks this is a good clutch. I was torn between this one and the 12cb.



For my application, which do you think is the better clutch?

 

[jwilliams3]

If your gonna sled pull on a regular basis, I would recommend the 3850.

Oh yeah, for a heads up... If your going to Dual disk a 3rd gen anything above the 3600lb level. You are going to need to upgrade your hydraulic system on that 3rd Gen.

I blew my master cylinder within a couple weeks after the install of the 3850 clutch.

The upgrade is available (old hydraulic system for 94-98 truck) from EEP www.enterpriseengine.com FYI.



--Justin

 

[Patriot_RAM]

Thanks for the info. Forgive my ignorance, but can you explain how it affects the hydraulic system?



I'm only looking at 1 or 2 pulls a year at the most, so the 3850 might be overkill. I was looking at the 3600 6cb and the 3600 12cb and trying to decide between those. The main reason I was leaning toward the 6cb is this is a daily driver and I didn't want the clutch to be hard to drive in town.



What do you think about the drivability of the 12cb?

 

[jwilliams3]

If I remember correctly. .

Mine is the a 12FE/12CB/3850.

I drove it in town all the time until the hydraulics went out a week ago.

Right now we are retrofitting and older hydraulic system and tuning it to work with the 3rd Gen.

Its not too difficult.

BTW. . The 3600 is not very hard on the hydraulics.

But, I would have the older kit on hand when your cheesy 3rd gen hydraulics decide to give up the ghost.



--Justin

 

[Turbo Thom]

It does not affect the hydraulic system. The clutch has it's own. Totally independent of everything else. I've had to replace a few. I installed a dual- disc in a customers truck and it is not a clutch to shift quickly. As a matter of fact, that was 3 months ago and he call and needs another one. Already burned that one up. A 30 lb launch in 3 gear to many times. Oh well, it's just money.



. . Preston. .

 

[Big MAK]

SOMEONE PLEASE LET ME IN ON THE SECRET



How do you achieve a boosted launch -- 20lbs, 30lbs -- with a manual !!!!!!??????



'Dumping' the clutch won't do it; no boost; have to apply a load somehow. Powerbraking it? What's the trick to keep it from stalling?

 

[Turbo Thom]

OK... ..... Read real close now. Creep into the light till the top light comes on. Want till the other dud stages, then with your heel on the brake, ease into the light. With the left foot on the clutch, hold the brake with the right heel and slip the clutch while applying more fuel, till the boost is made. When time comes for the launch, just rotate the foot and floorboard the accelerator. Let the clutch out and away you go. I make 20 lbs of boost that way. I know that is not really clear but this is what I do and it works for me. The time the clutch is slipping is about 3 seconds. After about 3 or 4 launches you'll have it down pat.

Try it.



. . Preston. .

 

[Patriot_RAM]

I didn't think it was possible to wear out a dual in three months. What causes the short life?

 

[jwilliams3]

Turbo Thom,

I was referring to the clutches hydraulic system.

Yeah, I know it has its own and I blew fluid all over the fire wall.

 

[Turbo Thom]

Oh, I didn't think clear... ... ..... Sorry



And the wear out in 3 months... ... ... ... 30 lb launches in third gear. I taught um the heel and toe thing. That what you get for listening to me.



. . Preston. .

 

[Big MAK]

Thanks Preston. I'll try not to cook it too quick!



... I also talked to my local truck shop about a magentic brake for the driveshaft that'll hold back 500hp!!