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Go Back   Madabout Kitcars Forum > Mad Build Area > Marlin 5exi builds

Marlin 5exi builds Calling all you sexi builders....sorry 5exi builders, show us your progress.

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  #1  
Old 6th May 2012, 19:56
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alackofspeed alackofspeed is offline
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Default Brake upgrade

After a winter distracted by helping with an engine conversion and overhaul of another car, my car time and energy quota is now free to use on the Marlin.

At the last track day I attended I kept running out of brakes and in the process warped and cracked discs. I always knew I was running at the top end of the braking envelope of the sliding calipers and 260mm (f&r) brake setup, but had generally got by. The last couple of track days I've been pushing harder, which ultimately put me beyong the capabilities of the 260mm arrangement, so I decided not to replace with the same.

This weekend I've done the bulk of the fabrication - certainly the more difficult alignment elements - to fit 280mm MG ZS disc front and rear, with HiSpec 4-pot calipers.

A couple of pictures:

Rear



Front


Don't worry about the position of the bleed nipples - I've only used one rear and one front caliper to locate the mounts for all wheels, so on the RHD of the car the bleed nipples are on the bottom of the calipers.
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Old 7th May 2012, 14:34
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Looking good John. Will be good to hear how it feels on track now.
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Old 7th May 2012, 16:48
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Cheers John.

Hopefully the improvement in consistency will be significant.

The heat in the brakes at the last track day was too much for every part on the hub, especially at the rear; the paint has blistered with heat, the wheel bearings have been cooked and are scrap, and the lower ball joints are dead.

I don't suppose you know the part number for the two bolt flange style lower ball joint???
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Old 7th May 2012, 17:35
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Sorry John. Don't know the part number.
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