Engine/Transmission (1994 - 1998) Stock clutch. What hp will it hold?

[Morse]

I just picked up a 94 standard cab, 4x4, stickshift, dually and was wondering how much power a new stock clutch will hold without a trailer? I took the truck to be painted, though it should be back by saturday to start taking on new parts...

 

[ELake]

right around the hp of a #10 plate they start to slip in 4th and 5th if you are accelerating hard... .

with my stocker slid forward if I accelerate hard from a dead stop it will slip if you are in the powerband when you shift into 4th... . but I have the 215 pump so that may be a little different. .



hope this helps!!

 

[Morse]

I have 370's in the garage. . I'm stopping by Garmon's shop in a few weeks to do the 4k gsk, timing, and remove the plate. . I have a 5'' exhaust waiting for it off my 95 as well. . May throw an hx40 on it for now as well. . Should be in the 400's pretty easy. .

 

[DBogo]

400 and its still holding

 

[mjs]

Mine sliped with just the plate it did hold for a little be for it showed. I would say 650 to 700 ft pounds of torque is max . A #6 plate should be safe . mike . ps you can run more power but you need to get in to it a little easier

 

[bmoeller]

I have 370's in the garage. . I'm stopping by Garmon's shop in a few weeks to do the 4k gsk, timing, and remove the plate. . May throw an hx40 on it for now as well. . Should be in the 400's pretty easy. .

I doubt you'll have 400, even at the flywheel. You have a 175 pump stock. Unlees a 215 has been swapped in, then you may. I'd grind a 0 plate instead of running plateless. Won't want to risk the pin breaking in the pump.



I think I'm around the 350-380hp (flywheel) range. Need to hit the dyno.

 

[Kernel]

When I had an 11 plate and boost elbow it did fine empty, put a load greater than 6000lbs and it would slip. After I put in 370s at around 110,000 miles the original stocker gave up in 4th and 5th empty.



Scott

 

[Signal73]

With what I have in my sig, the stocker clutch is holding empty. I have a 100 plate in the mail coming my way, so I think Im gonna be looking at a southbend clutch REAL soon. Oo. I have not been on a dyno so I dont know what I have for HP/tq, any guesses??

 

[Neibe]

When the clutch goes do yourself a favor and get a South Bend. Be sure and talked to Peter.

 

[Vaughn MacKenzie]

My stocker quickly went south with a #10 plate in the stock position with stock injectors.

 

[Morse]

Thanks guys. . I've never had a cummins with a stick. . I didn't really know what to expect. . I guess I'll just try it and see. .

BMOELLER. You can pull huge power from a 160 with simple mods and good tuning. . I have a 160 on my 95 cummins that flows over 800cc's, and idles pretty smooth. . If I do the basics, I'd bet anyone here Garmon can pull mid to upper 400's with the 40. .

Sorry about pointing out the pump thing. . I do appreciate all responses. .

 

[boondock]

No offense but good luck getting to the mid and upper 400's with that pump with a plate, turbo, injectors, timing, without pump work.



Mine held on the dyno and street at 350/800+ at 2150 on the last run (to high or rpm's for max tq) if I didn't slip it in to 2nd such as racing.



But I just put it all the way forward and it slips about 40% of the time in 5th when its to the floor.

I would say I am at 380/900 or so.

 

[Morse]

Sorry, I didn't make myself too clear there. . When I said the basics, I meant a 4k gsk, timing, no plate, and then the 40 with the 370's. .

 

[boondock]

Morse I am not saying I am no all but I have never seen #'s like that from a stock 160 or 175 pump.



215's are pushing mid to high 400's with plate (10,0,100), timing, 370's, HX-40 or even HTB-2 or full b1, 3 or 4KGSK. I just don't see where you are getting you will be at mid to upper 400's.....



t-bone has a 97 with DD2, #10, plate, 3K GSK, stock turbo with crazy high temps and low hp, In the 250 range. This truck was set up by Piers. Another truck with 180 pump 98 auto, same as above but with PDR modified 35 has the same problems with high temps low hp... dynoed at 270 and 650 tq.



You truck should run and run well but don't expect even 400 with the mods above.



Kurtis

 

[pwerwagn]

My stock LUK held the #11 plate in stock location (roughly 280hp... ). Slid foward about . 020, it would slip in fifth, and 4th with the trailer.

with the #100 plate, it would slip in lots of gears. as long as I didnt get on it below about 2100 rpm, it wasnt to bad, but it would only pull one gear. shifting would cause it to slip. I would *guess* that I was at about 330-340hp at that point..... so 280-300hp is prolly the limit for a stock clutch, and thats if you're nice to it.



FWIW,

we put together a 180 pumped truck recently. did 3KGSK's, 191 DV's, 370's, #0, no pump work, timing at 17*, and a B-1-2 and it only made 37x rwhp on the dyno at 5,000ft.

a 215 pump is the only pump I can see hitting mid-high 400's at the wheels with just bolt ons and a turbo (no internal pump work).

you're not implying flywheel hp are you??

--Jeff

 

[Morse]

I quoted 800cc's from a 160 pump. . That pump began life as a 160. . It was then sent to Dynomite Diesel. . I had them do everything they can do to it. . Lenny had it flowed, and it made over 800cc's with the race plate, and 700 with a driving plate. . It's got 13mm plungers and barrels, lazer cut dv's, and is fed with dual fuel lines. .

Lenny from dynomite diesel had this 40 on his truck as a back up, and pulled 490 rwhp. . Granted, he has a good pump and better injectors. .

I was also getting numbers from a conversation I had with Jeff Garmon. . He did timing, 4kgsk, and no plate on my 95 before I got serious with it. . I asked about putting it on the dyno, and he said he already knew what it would make. . Right at 320 is the norm. . He said if I threw in some 370's, he could get another hundred at the tires. . When I asked him about going to a 215 pump, he said it would be a waste of money. . He said he has pulled XXX out of a non P&B'd 160 pump. . It was a crazy number. .

As far as horsepower goes, I'm just going from what these guys have told me. . I won't know for sure until it's done. . They both do seem to be very knowledgeable guys. .

As far as the 800+ cc 160 pump. . It came with a card showing what it flowed. .

Thanks again for the responses. . I was hoping a stock clutch would hold much more than a stock auto. . Oh well. . More to replace. . I just hadn't planned on going too far with it. .

 

[boondock]

Ok I see where you are coming from now. With pump work anything is possible espically with that much fuel!!



I thought you were saying a stock pump.

It more than just the pump that makes the hp's with the 215 trucks.

I will say a clutch in good condition will hold 300+. Like I said mine was fine until I slide the plate all the way forward.

 

[Morse]

I'm not always the best at describing things. . Sorry. . Do yall know of a clutch that would live up to around 500 hp without a load? I don't plan on pulling any sleds. . I just want to play with it on the dragstrip. .

 

[boondock]

Southbend FE Good till 550



Edit: I don't know how well it will handle the strip... . I plan on getting an FE in the next couple months, I hope it does ok in the 1/4

 

[pwerwagn]

Or for a slightly cheaper option, a LUK 13" cerametallic... . it will hold right around 500hp.