This is a review for the Green label turbo sold through Forced Performance. ( www.forcedperformance.com ) I ordered mine with a 90* elbow welded to the compressor outlet to allow the use of my lower intercooler pipe. The turbo bolted on without any hassle. Start to finish ran me about 2 hours.
This turbo replaced a MUTT L3 with a TA housing and any comparisons in this thread are made to that turbo.
I decided to go with the Green because of its reputation and the numbers it has put down on numerous other cars. I decided to go internal for a) Cost and B) the car is already set up for an internal gate. There is quite a bit of concern about whether a large turbo such as the Green is doable with an internal gate. Concerns are about its ability to hold lower boost without creep and its ability to run higher boost without blowing the 34mm flapper door open.
The cost of the internal gated turbo is approx. $150 more than in externally gated turbo because of the additional materials needed (actuator, flapper, etc.) but in the long run is cheaper when you consider the cost of a nice O2 housing flanged for a gate and the external wastegate itself. In my case I had no plans on running anything less than 20 ever so the internal gated turbo was a viable product for me. If you plan on running 15# on the street or while waiting for the rest of your supporting mods than this is not the turbo for you.
In my case the lowest boost I could run stable was 18#. The highest I have run has been 24#. The adjustment between these two boost levels is not merely a boost controller change though. You need to adjust the actuator rod to increase or decrease the wg tension as needed. I am confident that the turbo will run higher boost though without blowing open the door based on the amount of tension I can still add with the actuator rod. FWIW I am using an AHP tubular O2 housing which I am sure is helping me attain stable boost.
In comparison to the MUTT turbo this Green flows marginally more air at the same boost level. As reported by the AFC I am seeing roughly 75-100Hz more air through the MAS. I believe that the Green is more efficient at the same boost level though as my timing is much better with all other conditions and settings the same. Boost onset is the same when compared between the two turbos. The Green hits a full 20# right at 4k when rolling into the throttle at 3k in 3rd gear.
I have no track times for comparison because everytime I have scheduled a day to go I have gotten rained out.
Go ahead....ask away.
This turbo replaced a MUTT L3 with a TA housing and any comparisons in this thread are made to that turbo.
I decided to go with the Green because of its reputation and the numbers it has put down on numerous other cars. I decided to go internal for a) Cost and B) the car is already set up for an internal gate. There is quite a bit of concern about whether a large turbo such as the Green is doable with an internal gate. Concerns are about its ability to hold lower boost without creep and its ability to run higher boost without blowing the 34mm flapper door open.
The cost of the internal gated turbo is approx. $150 more than in externally gated turbo because of the additional materials needed (actuator, flapper, etc.) but in the long run is cheaper when you consider the cost of a nice O2 housing flanged for a gate and the external wastegate itself. In my case I had no plans on running anything less than 20 ever so the internal gated turbo was a viable product for me. If you plan on running 15# on the street or while waiting for the rest of your supporting mods than this is not the turbo for you.
In my case the lowest boost I could run stable was 18#. The highest I have run has been 24#. The adjustment between these two boost levels is not merely a boost controller change though. You need to adjust the actuator rod to increase or decrease the wg tension as needed. I am confident that the turbo will run higher boost though without blowing open the door based on the amount of tension I can still add with the actuator rod. FWIW I am using an AHP tubular O2 housing which I am sure is helping me attain stable boost.
In comparison to the MUTT turbo this Green flows marginally more air at the same boost level. As reported by the AFC I am seeing roughly 75-100Hz more air through the MAS. I believe that the Green is more efficient at the same boost level though as my timing is much better with all other conditions and settings the same. Boost onset is the same when compared between the two turbos. The Green hits a full 20# right at 4k when rolling into the throttle at 3k in 3rd gear.
I have no track times for comparison because everytime I have scheduled a day to go I have gotten rained out.
Go ahead....ask away.
