Z1 Motorsports Twin Turbo Oil Cooler Conversion Hardware for all LHD '90+ 300zx Twin Turbo's equipped with the standard Z1 TT Oil Cooler Upgrade Kit.

This kit allows customers who already have the standard Z1 TT Oil Cooler Upgrade to convert from the traditional, parallel oil cooler setup found stock to the Full Flow Setup found on the Z1 Full Flow Oil Cooler Upgrade Kit.

The standard, stock oil cooler setup found on the 300ZX Twin Turbo is limited in its ability to cool and flow engine oil.  Nissan designed the oil cooler system found on the 300zx Twin Turbo to work in parallel with oil being supplied to the engine, rather than in series.  A restrictor with a small opening is even included in the lines behind the cooler in the stock configuration to limit flow.  While the factory oil cooler configuration is ample for stock cars under street conditions, it may not be able to keep oil temperatures acceptable under competitive driving circumstances with engine output increased. 

A true FULL FLOW Oil Cooler Setup means 100% of the oil passes through the cooler before being supplied to the engine.  Resulting in cooler oil entering your engine, reduced wear on the engine's critical parts (i.e., Turbo chargers, Main Bearings, Cam Shafts), and increased engine life.  Considering all the oil being supplied to the engine must pass through the oil cooler system first, a system of this design requires less restrictive larger lines and a higher capacity core than the stock size components, which were engineered for the lower volume parallel configuration. 

This kit is not compatible with RHD models!

The Z1 Motorsports Twin Turbo Oil Cooler Conversion Hardware Kit includes the following items:

• 1x   Z1 Motorsports (-8AN) SS Oil Cooler Line Set
• 1x   Mocal Sandwich Plate Adapter (Optional Thermostatic Sandwich Plate available in options below)
• 2x   (1/2" Port) to (-8 AN) Fittings
• 2x   (-8 AN) to Port Fittings (For Earl's type Oil Cooler)    
• 1x   Z1 Motorsports Twin Turbo Full Flow Oil Cooler By-Pass Supplement Kit

You may choose to upgrade from the standard, Non-Thermostatic Sandwich Plate to a Thermostatic one by selecting from the product options.

• This kit is designed to convert the standard, Z1 Motorsports TT Oil Cooler Upgrade Kit to a Z1 Motorsports Full Flow Oil Cooler Upgrade Kit.  It is assumed that customer's purchasing this kit already have the Earl's Oil Cooler core and mounting brackets from the Z1 Motorsports TT Oil Cooler Upgrade Kit.
• This kit is not compatible with RHD models!