500HP service kit - Engine oil - gearbox oil - oil filter and plugs. 

 general service kit for a high power z20 build , more road focused and with a helical type differential.  If your car is more a track toy then you may want to consider going to the 10-50 version of this kit. If your running more power maybe consider the  15-60W version. 

500HP service kit - Engine oil - gearbox oil - oil filter and plugs. 

 general service kit for a high power z20 build , more road focused and with a helical type differential.  If your car is more a track toy then you may want to consider going to the 10-50 version of this kit. If your running more power maybe consider the  15-60W version. 

GBT V Band turbine Inlet clamp

This is the clamp for between the manifold and turbine housing to suit the Owen Developments GBT turbos - It will also fit a Garrett or Tial application too – these are about the best clamps going and its what you will find on our turbo kits.

GBT V Band turbine Outlet clamp

This is the clamp for between the turbine housing and downpipe to suit the Owen Developments GBT turbos - It will also fit a Garrett or Tial application too – these are about the best clamps going and its what you will find on our turbo kits.

RND Maff-less inlet pipe for the Z20 engine

This inlet pipe is for our in house turbo kits that use a 3” turbo inlet side. Its quite simple in construction as we have the option to remove the air flow meter when tuning – this inlet is not for everyone . Check with your tuner first to make sure they are happy to do this. Keeping the inlet simple but very free flowing is ideal for making good power.

We find that beyond a certain point its very difficult to rely on the airflow meter at times. Turbo surge or sometimes there is just not enough room to install things nicely.

Removing the air flow meter allows us to use a much larger filter if needed , this is a big bonus over 450HP – with a better turbo inlet and larger filter the turbo system will often make more overall power .

Included

Stainless steel charge pipe – TIG welded

Silicone joiner to turbo

3 x Clamps – stainless steel

This inlet pipe system is to be used with an air filter that has a 3” inlet

Turbosmart Gen V waste gate Astra VXR water cooling pack

A lot of the new waste gates come with water cooling but its not always used , usually through being difficult to connect into the system . Included in this kit are all the parts to install the Turbosmart Gen V waste gate to the Astra VXR type engine cooling setup.

Running the water cooling on the waste gate keeps the boost more constant , less error for the control to deal with to account for the difference in spring force due to heat. Cooling them keeps the boost more consistent over a longer run.

This kit is an optional upgrade to our GBT turbo kit , it is designed to work with the coolant hoses being tied down over the top of the radiator – this is a much better place for them in most cases. Even more so on a big turbo setup

When we install this kit in house we will often crimp the hoses to ensure nothing can come loose , jubilees are fine for use so are supplied in this kit as they are easier to work with for DIY install.

To work with Nortech manifold and the Turbosmart Gen V waste gate

Included ,

-Adaptor for coolant line ,

-fittings and line to waste gate ,

-fitting and short hose out of waste gate

-additional 8mm T piece

-4 x jubilee clips ( T piece + waste gate outlet )

Z20Le* 470 HP V band turbo bolt on kit

Producing a full turbo kit that is reliable , fits well and delivers the power in the most brutal but also controllable way is something we have spent a long time testing, years have gone by in getting to where we are now.

We have always liked the Owen developments turbo units , outright power , response and cost all balanced out well. They provide high end turbos and we are looking for high performance boost , its natural we start with one of their own new turbo units.

The GBT turbo is the end result of thousands of hours of testing, we ourselves used the older HTA hybrid versions with excellent results. The GBT series has given Owen developments the chance to improve all the areas that needed changing for the better.

With this turbo and the right supporting parts we can make 500HP and 500 LBS of torque – this is the absolute most you can run but they will go there if you need to win ! We advertise this as a 470 rated setup as that is the number we know it can run all day long , run harder for short periods we have seen no increased fail rate, still non at all.

The manifold is a big part of the setup , having a poorly designed manifold can ruin any performance turbos character fast. This kit features the best manifold that we have known for the Z20 series engines. Supplied and manufactured in the UK by Nortech performance, these feature the best materials and best welding procedures to make an all round solid performance manifold.

Our choice of waste gate for this kit is the Turbosmart GEN V hypergate - we find that this wast gate with the water cooling plumbed in makes for the most reliable consistent boost for the pricing.

The downpipe exhaust system is also manufactured by Nortech Performance , these are full 76mm diameter mandrel bent system components with a very high grade flexi joint. These again will cope with 600HP on the right turbo setup !

Hardware and fixings , this is a collection of many kit parts that we have made up. Every component has been selected tested , revised in some cases and this is the end result . A collection of parts that work perfectly together.

In this kit there is everything you require to physically install a full turbo kit to your car. Your exhaust system may need some minor alterations , we also sell extension pipes which will slip fit into a piper exhaust system.

The inlet system is designed to be run without the AFM sensor – not all tuners are happy to do this on the stock ecu so please contact your tuner in advance of buying this kit. If its ourselves then we believe that removing the AFM at this kind of power is the best way . If you are planning on running a standalone ecu then this turbo kit again has everything you need to fit the whole kit

This is a serious turbo kit , it will produce serious power with the right supporting parts . These are the minimum recommended parts that we would suggest to run this kind of power

3” / 76mm Cat back exhaust system

Airtec stage 2 intercooler system

Catcams Fast Road cams

Catcams Single uprated springs

1000 CC injectors

3 or 4 bar boost pressure sensor

Fuel surge tank system

Upgrade inlet manifold - Klassen

Forged LET / Rod swapped LEH

Upgrade clutch and flywheel

To run more along the line of the 500LBS and 500 HP then the cylinder head must be ported out , on the stock camshafts then this setup will make around the 460 HP and 400 LBS of torque without being too stressed. All round this kit is the perfect choice in most instances , a lot of people probably buy a bigger turbo thinking its necessary when really a more responsive but still potent unit is faster overall.

Turbo Brace developed for use on Nortech V band manifold - Gen1 GBT MA3 type turbo

A turbo support is always a good idea to take some of the weight off the end of the manifold, meaning a much longer life to the manifold.

A flexible brace type mount should alwas be used on a turbo system, as it is intensly heated, things tend to expand and contract. Solid type brace systems will only lead to cracking sooner.

This flexible support type brace for the Z20 series engine, running a Nortech V band manifold system (others TBC ) with a first generation Garrett series turbo. Generally in this frame the compressor housing bolts seem o be imperial sizes so we will send out the apropiate bolt for your kit.

Attaching to one of the compressor cover bolts at the side of the compressor cover most near the engine block , this brace then utilises one of the engine block RWD engine mount configuation bolts to take the weight of the core, set up well you should be able to remove your manifold and the turbo more or less stay in place with only the brace and the downpipe.

Not having the weight of the turbo itself hung on the manifold will make a large difference in it's life.

Utilises the same quailty spherical bearing as we use in our suspension parts , full stainless steel hardware package.

Turbo Brace developed for use on Nortech V band manifold - Gen1 G25 series type turbo

A turbo support is always a good idea to take some of the weight off the end of the manifold, meaning a much longer life to the manifold.

A flexible brace type mount should alwas be used on a turbo system, as it is intensly heated, things tend to expand and contract. Solid type brace systems will only lead to cracking sooner.

This flexible support type brace for the Z20 series engine, running a Nortech V band manifold system (others TBC ) with a first generation Garrett series turbo. Generally in this frame the compressor housing bolts seem o be imperial sizes so we will send out the apropiate bolt for your kit.

Attaching to one of the compressor cover bolts at the side of the compressor cover most near the engine block , this brace then utilises one of the engine block RWD engine mount configuation bolts to take the weight of the core, set up well you should be able to remove your manifold and the turbo more or less stay in place with only the brace and the downpipe.

Not having the weight of the turbo itself hung on the manifold will make a large difference in it's life.

Utilises the same quailty spherical bearing as we use in our suspension parts , full stainless steel hardware package.