The "Goose" Gets a Little Respect

Guest

I attended the Euro Auto Festival this pass weekend at the South Carolina BMW plant with my Mangusta (8MA830). Approximately 500 cars showed up.

Since I was the only DeTomaso, (where were the Panteras?), I was placed in the Italian Exotic Class. This class included Lamborghinis (Diablo, Countach, and Gallardo), Early Fiats and a Facel Vega, so the class was a little crowded for the Goose.

But, the Goose had a lot of people around it, and everyone was taking pictures, and to my surprise, the Goose took First in it's Class against some very expensive cars. At least in the Southeast, the Mangusta has earned some well deserved respect from other car owners.

10/18/109:15 AM

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Original Post

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deniscCaretaker of 8MA1244 '70 Euro Mangusta DRIVE THEM, THEY WERE MEANT TO BE DRIVEN, IF YOU WANT TO LOOK AT ONE, BUY A POSTER!

Jack, Fun isn't it

You mentioned you changed the clutch master cylinder. Have you/can you give details: part number, pedal travel change, slave travel change?, or did the new clutch have a modification?

Denis

10/18/102:24 PM

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huskerMember

Well done. Proves what a timeless, unique and beautiful design it is.

10/19/104:01 AM

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Jack Dowling (Guest)

The clutch master cylinder I used was a Wilwood .625 bore, part number 260-6087. Purchased at Summit Racing for $47.95. The replacement, along with straightening the push rod on the slave cylinder, made a tremendous change in the amount of foot pressure required to engage the clutch.

The pedal and slave cylinder travel was unchanged.

Jack

10/19/101:24 PM

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benchuMember

Is the clutch master cylinder a straight bolt in or are there modifications needed. If you had to quantitate the amount of clutch effort reduction, how much less with this master cylinder is it make the clutch feel

11/28/1011:15 AM

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benchuMember

What is the bore diameter of a stock clutch Master cylinder. My understanding is a smaller bore will reduce pedal pressure.

11/29/1011:22 PM

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jb1490Member

quote:
My understanding is a smaller bore will reduce pedal pressure.

Ben,

Yes, a smaller bore on the master cyl will reduce pedal effort, but it will also require an increase in the pedal travel in order to move the slave cyl piston the same distance that it traveled before the master cyl was changed.

John

11/30/108:06 AM

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Candy2862 (Guest)

Auto festival BMW Plant in South Carolina....
Apparently, no one noticed that Facel Vega is a FRENCH car ( and a great one )

11/30/108:48 AM

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mangustaMember

Ben,

Stock bore of both master and slave are .75" making them a 1:1 movement deal....

So decreasing the bore size of the master, decreases pedal effort, but also decreases the amount of movement you get at the slave.

This makes the task tricky if you already have a clutch setup that is marginal in terms of disengagement.....

Steve

11/30/1012:05 PM

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benchuMember

Thanks Steve for the info. Actually my clutch engages rather high off the floor so there should be enough room for disengagement. I got a message from Jack Dowling who used the smaller clutch master with a 0.625 bore size and he says it reduced the effort by about 25%. So I ordered the part from Summit racing.

11/30/1010:59 PM

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