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Big Brakes for Sam’s 1973 Datsun 240z

Filed under: Featured Cars and Projects,Performance
by Alvin G @ 11:53 pm on April 16, 2018

 

Sam C lives in San Francisco and heard of ZCG last summer while at a local bowling alley near our shop in San Jose.  His 1973 Datsun 240z had been sitting for several years and after reading zcarblog he wanted to bring it back to life.

 
 

We performed an inspection and found that the car needed attention in several areas. Starting with the cooling system, all hoses were replaced and a Koyo race radiator installed.

 
 

The problematic ’73 model SU carbs were replaced with earlier Z-Therapy units. All smog equipment was deleted. An MSA header was installed and the older igntion system was upgraded to Pertronix:

  
 

In short, we performed a mechanical resotorationthat this car could perform as it should after years of being idle, including a new battery and recharged the vintage air conditioning system. Here are a few pictures of engine bay completed and detailed:

 

With the engine bay sorted we turned to the chassis. The entire suspension was removed, dis-assembled and media blasted before sending off to be zinc’d and powdercoated.  New parts consisted of 5-way Tociko struts with Eibach springs, MacPherson strut bumpstops, T3 adjustable rear control arms, and adjustable T/C rods and new wheel bearings. ALL bushings were replaced including the rack bushings, ball joints and front control arm bushings.

 

A set of gorgeous 16×7 11mm offset Panasports with 225/50/16 Yokohama S-Drive tires was mounted rounds out the chassis upgrades:

 

The ZCG Big Brake Kit

The pièce de résistance of Sam’s restoration is the Z Car Garage Big-Brake Kit for small wheels.  With our pre-production testing finalized, we are happy to install the first batch on several customer cars like Sam’s, Glenn’s and others.

 

 

Following our successful, larger ZCG BBK, this smaller BBK was designed with Tyler from Stoptech as a direct bolt in solution for the 1970 to 1978 S30 Z cars. We’ve been with Stoptech since the beginning and love their products, we even came up with the slogan “Stoptech or don’t stop at all”!

 
 

Specifics

Calipers: Stoptech ST42 4-piston front & rear race calipers (Alum 6061 mil-spec Type III anodized)

Rotors: 280mm x 20.6 with Alum 7075 hats

Pads: Stoptech 309 sport street pads

As installed on Sam’s S30, the brake kit is beautiful and functional. Track tested under hard racing conditions and rigorous street testing as well. Factory parking brake functionality is retained by operating a dedicated caliper:

  
 

This big brake kit will fit under 15″ wheels and some 14″ wheels. Once the BBK is available in our online store there will be a complete wheel fitment guide with printable caliper tool. Datsun 510 and Roadster brake kits coming soon!

 

 

Sam’s Z was detailed by our friend at JB Mobile and the paint looks great. Thank you Sam for letting us get your Z back on the road. Enjoy The Ride!

 

 


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