Clutches in my WD puller...

  Ok guys,

Just yesterday I talked to Sam at Theobold Custom Manufacturing in Stacyville Iowa on an Allis clutch for a real high torque engine.  He (a professional clutch remanufacturer) claimed that the plate load on a 6 spring can be just as high as a 9 spring when he builds them and not to worry about getting a 9 spring core.

Edited by wi50 - 13 Dec 2012 at 1:13pm

I love the idea and set up. I dont have access to the machines to do this. I have a landlord with a few tools, but no kind of mill. He has done all my "outside the box" machine work so far. Getting local shops to do something other than "standard stuff", like surfacing, .etc is impossible. I plan on increasing enging h.p. in the future. I want a clutch that will 90 to 100 h.p. I have saw what they call a heavy duty, clutch, which is a button clutch, with a nine spring pressure plate. I hope the flywheel of my combine engine isn't in the scrap hopper...

Are you saying the hand clutch slipps causing this? We always spin out unless there is a engine problem.

I just reread about the kid . remove the hand clutch and when you put a foot clutch /pressure plate that will hold your hp chances are he want be able to push it in. the remedy dirt track hydraulic clutch pedal located where he can reach it and the cylinder attached to where the factory pedal attaches to throw out bearing fork.

Edited by mlpankey - 14 Dec 2012 at 1:12pm

wi- love the 2 disc and at that kind of cost everyone should run one....either to hold power of to last forever

mlpankey wrote: Mrgoodwrench wrote: wi- love the 2 disc and at that kind of cost everyone should run one....either to hold power of to last forever we learnedback in the 80s drag racing with tall slicks that a light flywheel dont work even with a heavy fluid filled torque converter let alone the height of 38 inch tractor tires . jmho   i guess its not hard to get by the key board commando posers.

you lost me pankey...what doesn't work about a light flywheel?...especially with an auto trans?...i know sfi rated is heavier than stock but its not like its wieghted...besides thats a flexplate and has nothing to do with holding power. a friend of mine ran a 1300hp alki and that flexplate was less than twice as thick as my lower rated sfi, it just has 6 lugs on the converter  that are much bigger than stock.

But pankey, just a few weeks ago you wanted the lightest crankshaft possiable, less rotating weight you claimed was better. Why the change in story?

I simply removed weight from one area say 6 oclock on the flywheel and move it to 12 oclock on the balancer,hub, pulley to externally balance the crank at 5000 rpms on the spin balancer . the weight is grams a 6 inch stroker not externally balanced will jump out of the block right after it shakes the fillings out of your teeth.  My story isnt no more full of hypocritical holes than yours and wi is that cubic inches want turn rpms . He choose 500 inches for his new puller why did he not choose rpms and 240 inches?  like he preaches for the wc .   flywheel stores the energy not the crank. larger diameter flywheel needs less mass to store the same energy . This is why the builder you and wi call to get secret info from adds the plate to his builds and it isnt another 100 lbs . the cast factory flywheel is close to 100 lbs by its self.

Edited by mlpankey - 14 Dec 2012 at 9:05pm

[QUOTE=Mrgoodwrench] i won't try to argue on the pulling side as i have little experience(almost all behind the wrench...hope to remedy that soon). but i'll disagrre that the flywheel mass is needed to "shock the slicks"...maybe i don't speak pankey well enough but what is that? you not leaving the line at idle and trying to get the rpm up from a lug. you are at full throttle, nearlt full rpm, generally with a trans brake on. you trans is in 1st gear and reverse , when released the converted if free to drive the trans through the "fluid coupling" it is all much smoother than it seems as the drive train is already loaded. the more hp/torque and deaper gears you have the harded the "slicks" are turned. this is how i understand it although i am open to corrections. [/QUOTE with exception the more hp the taller the gear you pull is ] and if you dont have the  flywheel stored energy for the hp your engine rpm falls under the load and converter unlocks.  less hp more energy storage capacity needed more gears needed. for istance a 350 sbc can use a 600 gear for the 1/8  a 500 inch bbc can use a 488 gear

Edited by mlpankey - 14 Dec 2012 at 9:16pm

i'm just gonna agree to disagree with you pankey, i just don't believe the flywheel has as much to do with it

the finding with the recommended oil change was film thickness--10w motor oil didn't thin out enough so allowed slippage and the atf solved the problem.sure made running the roto-balers much more fun.

The sled we normally pull here is a drop pan sled and it's over 52,000 pounds.  When I build my high rpm WC engine I made a steel flywheel and left as much material hanging back over the crank twards the engine as I could.  I left it as large as I could get in the bellhousing.  I think it's 140 pounds.   

I'm a bit confuse on this hand clutch thing. If the wheels are spinning, how is the hand clutch slipping causing a loss in distance? I was always given the impression that the bathed in oil hand clutch was one of the strong points of a AC drive line