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Re: A clutch that will hook with 550-600 crank HP...
[Re: scatpacktom]
#249176
03/10/09 08:13 AM
03/10/09 08:13 AM
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Joined: Mar 2005
Posts: 331
Cincinnati Oh
fasthawk6
enthusiast
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enthusiast
Joined: Mar 2005
Posts: 331
Cincinnati Oh
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Quote:
Fasthawk6,If you had 3 hub failures you have a alighnment problem.When the hub tears out it is not from power.
we put a gauge on it because thats what we thought to,found out one of the pressure plate fingers was not working right and was applying pressure sideways you could say.took 2 or 3 times of broken parts.put it all back together with cf the same way and it is been fine since then.my thinking is hays are junk.but that is just me.all the broken stuff was with a 12:50 car to.
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Re: A clutch that will hook with 550-600 crank HP...
[Re: AlexP]
#249178
03/10/09 09:37 AM
03/10/09 09:37 AM
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Joined: Mar 2007
Posts: 3,288
West Coast, USA
jbc426
master
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master
Joined: Mar 2007
Posts: 3,288
West Coast, USA
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I've never had any luck having single disc clutches last with only a 500 horsepower motor, sticky tires, a four speed and 3.54 gears. I've even had custom 3800 lb presure plates made with super high pedal presures and sintered bronze puck clutches. The latter held, but chatter was an issue on the street even with marcel springs in the disc. If it's a track only car there are guys that make excellent custom "slipper" type clutches to cushion the shock loads and reduce parts breakage. I decided to try a Mcloed street twin with my latest 682 hp/680 ft lbs of torque engine, 18 spline, 1350's with larger tube driveshaft and a freshened D60 with sticky tires. So far, the pedal presure and smoothness of engaugement is impressive. Mine is basically a street only car, because I don't want to put a roll cage in it. I always preferred the half mile to the quarter, but in my old age I'm getting less daring or foolish, whatever the case may be. I figure I may get a pass or two at the local tracks, but am anticipating getting black flaged because the car is just going to be too quick to run without a rollbar. From all I've read and heard about this clutch, I have a hunch it's going to last. 
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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Re: A clutch that will hook with 550-600 crank HP...
[Re: jbc426]
#249179
03/10/09 10:23 AM
03/10/09 10:23 AM
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Joined: Feb 2005
Posts: 5,207
Menomonee Falls
DemonDust
master
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master
Joined: Feb 2005
Posts: 5,207
Menomonee Falls
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Quote:
I've never had any luck having single disc clutches last with only a 500 horsepower motor, sticky tires, a four speed and 3.54 gears. I've even had custom 3800 lb presure plates made with super high pedal presures and sintered bronze puck clutches. The latter held, but chatter was an issue on the street even with marcel springs in the disc. If it's a track only car there are guys that make excellent custom "slipper" type clutches to cushion the shock loads and reduce parts breakage.
I decided to try a Mcloed street twin with my latest 682 hp/680 ft lbs of torque engine, 18 spline, 1350's with larger tube driveshaft and a freshened D60 with sticky tires. So far, the pedal presure and smoothness of engaugement is impressive.
Mine is basically a street only car, because I don't want to put a roll cage in it. I always preferred the half mile to the quarter, but in my old age I'm getting less daring or foolish, whatever the case may be. I figure I may get a pass or two at the local tracks, but am anticipating getting black flaged because the car is just going to be too quick to run without a rollbar. From all I've read and heard about this clutch, I have a hunch it's going to last.
Half mile  
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Re: A clutch that will hook with 550-600 crank HP...
[Re: AndyF]
#249185
03/10/09 07:49 PM
03/10/09 07:49 PM
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Joined: Nov 2007
Posts: 21,847
Kirkland, Washington
Pacnorthcuda
Too Many Posts
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Too Many Posts
Joined: Nov 2007
Posts: 21,847
Kirkland, Washington
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Quote:
For a street car clutch to handle a lot of torque it needs to have a large diameter. A race clutch can do it with a sticky disc and/or pressure but neither of those work too well on the street.
A street twin will easily handle that amount of power but I think a 12 inch Viper style clutch will also handle it and cost less money. McLeod has a 12 inch set up for Mopar big blocks, just give them a call and work it out with them what you need. I think you need the big bellhousing and the 143 tooth flywheel but I could be wrong.
No you're not wrong. In order run the 12" Viper clutch you definately need the 143 tooth flywheel and compatible BH.
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Re: A clutch that will hook with 550-600 crank HP...
[Re: fourgearsavoy]
#249187
03/10/09 10:09 PM
03/10/09 10:09 PM
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Joined: Jun 2005
Posts: 726
ohio
mike67net
mopar addict
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mopar addict
Joined: Jun 2005
Posts: 726
ohio
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Quote:
Quote:
I realize that the weakest part of this all is the 23-spline. Is going with a S/T going to be the saving grace for the transmission ?
If so, I'd rather spend a little more money on a good clutch than replace a broken transmission.
Thats kind of a contradiction in terms  If you don't want the trans to break you need a clutch that "wont hook" Mike67net had almost the same setup as you and made short work out of an expensive Liberty rebuilt and prepped 23 spline box.If you plan on dropping a grand on a Street Twin talk to Tim Hyatt and he can set you up with an adjustable unit that you can tune for the track and the street.One of his units may just let that 23 spline unit survive the summer 
Gus 
 Yup sure did, 15th pass on the tranny, 1st pass with the street-twin, took third gear and the cluster gear out completely. Give Tim a call, he'll save you money 440-254-1311
Hey Gus! 
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