Landracing Forum

Bonneville Salt Flats Discussion => SCTA Rule Questions => Topic started by: Cajun Kid on September 24, 2008, 11:33:50 PM

Title: Multi Disk Clutch w/ Flex Plate
Post by: Cajun Kid on September 24, 2008, 11:33:50 PM
I regards to a steel "Lakewood" style blow proof bell housing.

The rules state you have to run one to protect against a clutch, or flywheel catastrophe.

Is this required when using a "contained" 2 or 3 disk clutch deals that use a automatic flex plate instead of a heavy flywheel?

Just checking.
(I run a Auto in my E/CGALT  Maxton Car, but will b using a 4 speed manual in the Stude !!

Charles
Title: Re: Multi Disk Clutch w/ Flex Plate
Post by: Roadster943 on September 30, 2008, 01:39:01 AM

    If I were to inspect your car and saw a manual trans and a clutch pedal I would have to go by the rule book. I cannot see what is inside the bellhousing. I will not be inspecting your car so you do not have to worry about me.  Is a clutch can not availible for your combo? JMO  Vince
Title: Re: Multi Disk Clutch w/ Flex Plate
Post by: Stainless1 on September 30, 2008, 08:12:49 AM
I would think you need a SFI bell housing or a ballistic blanket.  They are just trying to save your toes...  :wink:
Title: Re: Multi Disk Clutch w/ Flex Plate
Post by: GH on September 30, 2008, 12:09:07 PM
Charles, don't skimp on any safety items, they are for your safety......
Title: Re: Multi Disk Clutch w/ Flex Plate
Post by: Glen on September 30, 2008, 12:16:22 PM
Charles, go with a SFI clutch can
Title: Re: Multi Disk Clutch w/ Flex Plate
Post by: Cajun Kid on September 30, 2008, 04:30:01 PM
I have a SFI  Lakewood that I am going to use,,,

The reason I ask is the Transmission guy told me the Late Model Stock cars that use this trans and clutch set up use a magnesiom bell housing and that did not sound right to me,,,

No matter what, I am sure going to use a BlowProof bellhousing,  as I have had a clutch blow before on my drag car and one on my Vette ,, years ago,, but you never forget that !!!!!

No way I am banging any gears without a SFI Blowproof ....

FYI,, I have a SFI Steel shield for my auto now (not just a blanket) Made by TCI

Charles

Title: Re: Multi Disk Clutch w/ Flex Plate
Post by: maguromic on September 30, 2008, 04:49:55 PM
The NASCAR guys use the magnesium bell housing.  Tillton among others make them for NASCAR.
Title: Re: Multi Disk Clutch w/ Flex Plate
Post by: Cajun Kid on October 24, 2008, 04:59:43 PM
Mag,

Yes Tilton and QuarterMaster make the Mag Bellhousings for NASCAR guys... The reason they do not use SFI Steel Belhousing, as I am told is they do not use a flywheel, they use a automatic flex Plate and either a two disk or 3 disk clutch pack setup (this is a contained setup and ,,, supposedly can't leave it's own container )

I just picked up My TEX Racing 4 speed for the Studebaker from Shop.. Nice trans, Mag Case, Billet Mid Plate, Big Mag Tail Housing, Grease Fitting in Tail, Better Vent, Billet Shifter, Steel over Brass Synchro's etc....

Charles
Title: Re: Multi Disk Clutch w/ Flex Plate
Post by: doug odom on October 24, 2008, 05:42:28 PM
NASCAR uses a flywheel. I have been using the quartermaster NASCAR flywheel and triple disc for years. I also use the Lakewood bellhousing. I can't remember the last time I saw a NASCAR type car blow up a clutch. They don't slip the clutch even leaving the pits.
Title: Re: Multi Disk Clutch w/ Flex Plate
Post by: Cajun Kid on October 27, 2008, 09:17:18 AM
Doug,

Do use a Hyd. Release bearing or manual ?  The reason I ask is I would like to use the Hyd. release bearing that bolts to the bellhousing and I don't thisnk anyone makes a SFI steel bell housing that does that.

Other wise I will have to use the LakeWood steel bell housing and the "floating" hyd release bearing.

Any thoughts ?

Charles
Title: Re: Multi Disk Clutch w/ Flex Plate
Post by: doug odom on October 27, 2008, 10:19:30 AM
I use the Quartermaster floating TO bearing setup.
Title: Re: Multi Disk Clutch w/ Flex Plate
Post by: saltfever on October 29, 2008, 09:46:48 PM
The multi-disk, self contained, clutches are typically 5" or 6" in diameter. Force increases as the square of the diameter so a 5" clutch has 1/4 the force of a 10" clutch. The small diameter is the main reason they do not explode. It is also a reason why they are multi-disk.