The ZZP twin charged turbo kit includes:

• 304 stainless steel T3 turbo manifold with wastegate flange 
• 3" 304 stainless steel V-band turbo downpipe
• Oil feed and return system
• Bullseye 57mm V-band turbo with stainless exhaust housing
• 304 Stainless wastegate dump pipe 
• Custom MAF housing
• Fixed frequency AFC (coming soon)
• TiAL 44mm wastegate
• Air/air intercooler with custom mounting brackets
• 50mm blow off valve
• Custom charge air tubing 
• 2 manual boost controllers
• Intake tubing and filter
• Silicone vacuum tubing
• 14 Clampco T-bolts
• High quality silicone couplers
• Turbonetics silicone boots
• Custom PCM tuned for your make/model

Notes: 

• Do you have a TVS blower now? Would you like to upgrade to the twin charged? We guarantee at least 50WHP over your current power and expect a lot more. Email for special pricing for a TVS upgrade.

Performance:

Using our recommended turbo, this kit at its base setting of 16psi produces 300WHP+ on pump gas. We have tested to ~440WHP on pump gas and 465WHP on race gas.

FAQ:

1. Is this kit safe?

Anything that increases the power output of the engine will increase stress on components including the engine and drivetrain. We recommend building accordingly and dyno tuning every setup. Boost levels should be kept reasonable.

2. What is the twin charged configuration?

This setup uses the supercharger and a turbo. The supercharger makes boost in low rpms and the turbo takes over once it spools. It uses a different style of turbo than what would typically be used on an engine this size. 

3. How does it work?

The kit is complete with everything you need and when installed here we will give you a dyno sheet and full usage instructions. There are two boost controllers. One of them controls the blower and the other the turbo. The blower controller determines how fast the boost comes in and the turbo controller determines maximum boost. With a small amount of drive time and adjustment it's easy to taylor the car's power and feel to your liking.

4. Which turbo should I run?

Nearly any turbo of adequate size will work, however for maximum performance, reliability and efficiency, we recommend our unit. If acquiring your own, it will need to be a T3 unit with a 5 bolt or V-band exhaust housing. Our turbo is a Bullseye unit which uses a Borg Warner center section and has a stainless exhaust housing. Our kit is setup for an external wastegate.

-Optionally for $300 more you can get an extended tip turbo which makes more HP at boost levels over 20psi and will run to 35psi without issue. We recommend our larger intercooler for boost levels over 20psi.

5. Why not run only the turbo?

The twin charge kit has many advantages over a standard turbo build.

- Increased efficiency from using a larger turbo

- Higher HP potential on pump gas from dual intercooling

- Much better power curve and zero turbo lag. Looking at the chart below you can see the drastic difference from our competitors turbo kit and our twin charged unit. The graphs are not meant to show who's kit makes more peak power as this will vary from dyno to dyno and tuning. What is very dramatic is the power curve. Notice that at 3k rpm our kit (red line) produces double the HP! This is on a pull where the turbo only car started at a lower rpm. While everyone's taste in power curve may be different, there is nothing exciting about driving a car that makes less than 100 HP until you get to higher rpms!

http://www.zzperformance.com/miscftp/ZZP-vs-H-Dyno.jpg 

http://www.youtube.com/watch?v=nLyOmjH1iu4

6. Doesn't the blower rob HP?

Yes, but only when the bypass valve is closed and the blower is doing work. Once the turbo spools and the blower bypass valve opens, it uses very little power to turn. This chart shows the small amount of HP used when the blower is not generating boost. http://www.magnusonproducts.com/images/mp62g2.jpg

This small amount of power is easily gained back by the increased efficiency from the larger turbo and twin intercooling. 

7. Has this been tested?

Yes. ZZP pioneered the twin charge setup using an Eaton blower and T72 turbo on our Grand Prix years ago. We were running 9's in a month! We have more experience than anyone in twin charging and designed this kit on our own car so that there isn't any guesswork when it comes to working on yours. We have been doing this type of work for years and currrently own an 04 Ion and an 06 Cobalt for test vehicles.

8. Will this kit work on my car?

Currently we are taking installs for supercharged Cobalts and Ions. Please contact us for more info. 04 Ions will have some limitations. 

9. What' other parts do I need?

-Premium fuel. With twin intercooling this kit can run more boost than any other on the market with pump gas. It still requires premium fuel at all times and we recommend unleaded race gas with extended runs over 20psi.

-Aftermarket catback exhaust. The stock exhaust won't flow enough to support high power levels. Our downpipe will bolt to any catback exhaust. Please specify if you need one made for our 3" catback.

-Injectors. The kit in base form can use 42# injectors but you won't be able to turn it up. We recommend 60# injectors for up to 450WHP . The stock fuel pump is fine but power levels over 400WHP will require some modifications to the pressure regulator.

-Stock or larger supercharger pulley. This kit is designed for a large supercharger pulley and our test car ran a stock pulley. Small pulleys would cause high IAT numbers and other problems.

10. What about my fuel system?

• 42# injectors are the minimum size required for this kit and will limit you to ~16psi and ~300WHP.
• The stock fuel pump works well in excess of 400WHP and outflows the Walbro 255 at high psi levels.
• 60# injectors work to 400WHP with the standard regulator and 450WHP with the upgraded regulator.
• The Cobalt uses a regulator setting the fuel pressure at a fixed 60 pounds. The factory PCM compensates for boost by adjusting injector size tables based on boost. It adjusts up to 17.52psi where the table stops. This means that after 17.5 psi, fueling becomes less and less accurate as boost rises. To correct this we have a boost referenced FPR available that we recommend for boost levels over 20psi. 
• We have 72# injectors available for builds of 500WHP and higher.

11. What' other things are recommended for best results?

Race gas for extended high boost runs

Dual pass intercooling

Dyno tuning

3" exhaust

Drivetrain upgrades

Drag radials or slicks for track use

A clean pair of underwear in the glove box (just in case)

12. Do you have any customer resulsts?

Here is the chart testing Chris Lindsey's car at different PSI levels. Now keep in mind, these were not optimized at each boost level. All we did was change the boost. The 13psi run ended up at 11.5 AF ratio. Changing  it to 12.5 (safe for that boost level) and adding timing would have netted us closer to 300WHP (esimating).

http://www.zzperformance.com/miscftp/Lindsey-TC-Cobalt-3-boost-l.jpg

Chris Lindsey's Cobalt makes 23psi by 3k rpm! http://www.zzperformance.com/miscftp/Lindsey-Cobalt-377.jpg

Customer requested 400WHP, so we turned it up for a pull. Notice the extremely conservative fueling. 17 deg timing

http://www.zzperformance.com/miscftp/Lindsey-Cobalt-400.jpg

Jason's home done video after twin charging:

12. Do you offer installation?

Yes. Local install normally takes 2 days with dyno tuning. The options and configuration determines install time. Pricing ranges from $800 to $1500 depending on what you want done to the car. Call for more info.

Warranty Information

ZZP warrantees our kit and installation for 1 year. This warranty covers defects in materials and workmanship only. It does not give you a warranty on your car, your engine, drivetrain components or anything related to the use of this kit. With a turbo kit it is very easy to keep turning up the boost until something inevitably fails. We can only be responsible for the components themselves and not any damage their use or failure may cause other items. The turbo is not warranted against misuse, oil starvation, debris ingestion or physical damage. Any repair or replacement of an item you provide may cause additional time to be billed.