Edge Comp & BD1s slip clutch on ETH

[xbubblehead]

I chose BD1's over BD2's with my Edge Comp because I did not want to slip my clutch. I was wrong. My first few romps from 70 to 90 MPH full thorttle in 6th didn't cause any slipage. But later I tried going from 45MPH in 5th full throttle and the clutch promptly slipped (Comp on Level 4).



Does anyone know about how much rear wheel torque is needed to slip the stock clutch on a 2001 ETH/DEE?



Oh well, I guess there's an aftermarket clutch in my future.

 

[xbubblehead]

Does the clutch get weaker once you start slipping it?

 

[DAWG-1]

Wow. I heard these clutchs would not hold 100hp over stock. I contacted Southbend on a clutch with the similar set-up ( DDII, Comp, 4" exhaust and Piers Turbo) . I will be changing the order AGAIN. Fuel lines, Fuel gauge, Pusher pump, Clutch or Comp, then Turbo or Injectors. Bomb On.

 

[JMarkos]

My ETH dynoed 686 rwt with just an EZ and the first time I towed the cluth slipped. xbubblehead, have you dynoed yours?

 

[Russ99]

ETC vs eth clutch

What's the deal with all the posts I've read about slipping clutches? I drive a 99 3500 4x4 ETC w/5-speed with DD2s and an Edge Comp with the stock clutch. I have over 40K miles with lots of towing and I have never slipped the clutch. Is there really a big difference in the stock clutches ETC VS ETH?



Russ

 

[xbubblehead]

JMarkos,



No dyno and I really didn't have any plans to, although if I replace the clutch and they have a dyno available then I would consider it.

 

[Partyat33]

My ETH dynoed at 310 RWH and my clutch has never slipped. Even with the 9k TT in tow and romping it in any gear. I guess I better keep my fingers crossed.





Dennis

 

[jjohnson1177]

I think how long the clutch lasts is in relationship to how the vehicle is driven. I've had pretty good luck with the stock clutch in my truck but I always try to be about 1500 rpms or higher before I go full throttle.

 

[WOWZY]

I have heard that the stock clutch in the '99 trucks are rated up to 650lb. ft of torque and some have survived in trucks with 685lbft. of torque. Any more than that and the clutch will slip. I had a guy tell me that his stock clutch doesn't slip with his Blue Box and DDII injectors. I took a ride with him and showed him that his clutch was slipping by the way his tach was jumping around and by the sound. He put a centerforce clutch in the next weekend. I don't know if the Centerforce clutch did the job or not, but he seems happy now.



xbubblehead welcome to the Clutch Slippin' Club! It's still good to know that you're not under powered, Right?!!

 

[Oasis-3]

new clutch

I had my clutch replaced under the big W. the first time at 11,000 miles. My truck now has 15,000 miles on it and no slip "YEAT" after I get up to 22,000 miles I will start holding my breath.



Everything elce has been good.



Good Luck

Cliff

 

[BPINE]

Russ99 the 5 speed clutches all though smaller will hold much better than the 6 speed clutches. My 5 speed clutch would hold about 725 ft lbs of torque before it started giving me trouble. But no worries if you need more POWER Southbend Clutch has a clutch for both 5 & 6 speeds that works perfectly. My 5 speed clutch will hold more than 900 ft lbs of torque at any rpm or load and drives like stock, NO CHATTER and an easy pedal.

 

[South Bend Clutch]

Maybe I can shed a little light on this subject.



I buy OEM clutches and change them to handle more HP.



I take off the original linings and replace them with a better quality material. After hearing from you guys that some trucks can handle more HP with a stock clutch then others, I looked into it further. I have a huge stack of linings that I have taken off and I started to go through them one by one. To my surprise, they were not consistent with each other. It appears that the manufacture will use a run of facings and when they run out (whether it be availability or the need to have more then one supplier) they make a change to a different lining. So I broke them apart to see the consistency and found that some of the linings had a higher content of metal (brass) intermixed with the organic material. I then measured the pressure plates for plate loads. I used about 50 covers each from different orders and they all came in with a 1 to 2 percent difference.



Conclusion: I believe that it depends on what material (clutch facing) was being installed when your truck was being built.



Peter

 

[Vaman]

Thanks for the info Peter (my Con FE is doing well by the way... truck pull in 1 week). As far as my stock clutch, I never slipped it but I never towed with it after I bombed my truck. I also broke it in very gingerly. I've often wondered why there seemed to be a big difference in the slip points of the stock clutches but different facing materials would help explain it.