Here is a quick video that I made of a GT3071R turbo that I made to replace a trask Performance turbo. The turbo i built is rated for 400 hp.

The specifications for our upgrade are:

• Comp wheel 53mm x 71mm billet 30r wheel
• Turbine wheel: 55mm x 60mm gt3071 turbine
• T2 .64 turbine housing (from nissan sr20)
• .48 compressor housing (i have no idea what this comp cover came from)
• Garrett Ceramic Dual Ball Bearing
• Trask internal wastegate
• HP Rating: 400+ Hp and 600 CFM

The previous Trask turbo specifications are:

• Turbine wheel 47mm x 53mm
• Compressor wheel 45 x 60
• HP Rating: 165 hp

It looks From this picture that Trask Performance does do garrett ball bearing upgrades, but im not sure what size. Here is a picture of a To4b cover that they used, with this cover I could have machined it all the way to a 3076 or a gtx3582r. But we were just trying to make 200 hp with our build.

If you are not familar with trask here is their facebook page.

If you are looking for a Trask Performance turbo upgrade for your bike you can email us at:


tu*************@gm***.com