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    • PorscheBoost forums member reviews his BoostAddict/TiAL Sport Porsche 991.2 Carrera T 3.0 purchasing and product quality experience - M660 turbos, intercoolers

      We will let the review from @nn7man speak for itself but want to put emphasis on this user being from the UK and that BoostAddict.com can accommodate international shipping although depending on the country it takes longer and is more involved than shipping in the Continental United States.


      I recently collected my 991.2 Carrera T after its latest round of upgrades.

      Original spec was black/black with yellow T trim, manual, PCCBs etc. Since earlier this year the car has been modified in 2 rounds of upgrades.

      Round 1:

      Full Kline exhaust system including new headers and 200 cell cats
      Custom tune by 9e (UK)
      DSCV3 PASM controller with custom maps written by 9e for the T
      Exterior carbon by DB
      Interior leather/alcantara by Exclusive Option

      Round 2:

      Upgraded hardware (beautiful quality and materials) from Boostaddict including:
      Tial M660 turbos
      Tial upgraded Intercoolers (3D printed)
      Tial Intake pipes (aluminium)
      Tial Plenum (3D printed)
      Updated custom tune by 9e

      In stock form, 9e originally measured it at 330 WHP (Porsche official 370 PS). It's now making 580 WHP so around 650PS at 12% loss from the crank to the wheels. It's hitting around the same times as a 991.2 turbo S, circa 3.1 60-100mph and 7.5 60-130mph, pretty epic for a manual RWD narrow body. And it weights about 200kg less and feels very light on its feet.

      It's still on the OEM clutch which is now the weakest link, upgrade to the Sachs 830NM parts next.

      9e and Boostaddict have been a pleasure to deal with, I'm delighted with the transformation of the car.


      The upgrade utilizes the factory housings. This is commonly referred to as a hybrid upgrade.

      Here are factory turbo specs:

      9A2 3.0 991.2 Carrera

      Horsepower: 370
      Torque: 332 lb-ft
      Boost Pressure: 13.1 psi
      Turbos: 49mm compressor/45mm turbine

      9A2 3.0 991.2 Carrera S

      Horsepower: 420
      Torque: 369 lb-ft
      Boost Pressure: 16.0 psi
      Turbos: 51mm compressor/45mm turbine

      9A2 3.0 991.2 Carrera GTS

      Horsepower: 450
      Torque: 405 lb-ft
      Boost Pressure: 18.0 psi
      Turbos: 55mm compressor/48mm turbine

      The BoostAddict.com Stage 1 upgrade goes to a 61mm compressor wheel and 50.5mm turbine. We will of course not reveal the wheel designs.

      Here is what you can expect:

      Turbochargers:

      New OEM CHRA. ( Bearings, shaft, thrust washers )
      Larger turbine wheel 50.5mm
      Larger 61mm Compressor wheel

      Core OEM units (starting life from OEM 991.2 C2/4, C2S/4S, or GTS2/4 turbos) are then:

      - Disassembled and Inspected
      - Hot Ultrasonic Immersion Cleaned. Di Water rinse.
      - Shot peened to restore finish to new or better appearance to Compressor and Turbine housings.
      - 5 Axis turned / Machined.
      - Reassembled and clocked for installation.











      Collected the car this afternoon and just got home after a 3 hour journey in the rain. It needs a lot of respect! 2nd gear is completely crazy and 3rd/4th feel massively strong.More to follow once I can do some dry miles but very happy so far

      This article was originally published in forum thread: PorscheBoost forums member reviews his BoostAddict/TiAL Sport Porsche 991.2 Carrera T 3.0 purchasing and product quality experience - M660 turbos, intercoolers started by Sticky View original post
      Comments 27 Comments
      1. 3DMetal's Avatar
        3DMetal -
        The Carrrea T guys go all out !
      1. Blown6's Avatar
        Blown6 -
        How much boost and what gas?
      1. nn7man's Avatar
        nn7man -
        Running a max of 1.8 bar boost with pump gas, no meth or additives
      1. Blown6's Avatar
        Blown6 -
        26psi and no knock, you must be doing something right....
      1. nn7man's Avatar
        nn7man -
        Click here to enlarge Originally Posted by Blown6 Click here to enlarge
        26psi and no knock, you must be doing something right....
        I have a good tuner Click here to enlarge
      1. quattr0's Avatar
        quattr0 -
        Very nice taste in mods....Can't wait til your trans sorted out and see what else!
      1. Bowser330's Avatar
        Bowser330 -
        The plumbing work back there is pure master class
        Click here to enlarge
      1. Payam@BMS's Avatar
        Payam@BMS -
        Click here to enlarge Originally Posted by Bowser330 Click here to enlarge
        The plumbing work back there is pure master class
        https://www.germanboost.com/images/i...1fd9_ef2-1.jpg
        That's all OEM lol
      1. Bowser330's Avatar
        Bowser330 -
        I know that's what i was referring to, Porsche's plumbing work
      1. nn7man's Avatar
        nn7man -
        Click here to enlarge Originally Posted by quattr0 Click here to enlarge
        Very nice taste in mods....Can't wait til your trans sorted out and see what else!
        I need to get a clutch upgrade sorted which is proving a bit slow... Once I have then I'll be embarking on a 3rd round of upgrades which will comprise:

        Upgraded clutch
        KW lowering spring kit (height adjustable)
        KW 8mm spacers to complement the drop
        Stainless steel braided brake lines
      1. 3DMetal's Avatar
        3DMetal -
        Been extremely happy with B16s that work with the PASM controller.
      1. Blown6's Avatar
        Blown6 -
        If power and times are your thing why did you not choose the PDK, you would have avoided the clutch headache at this power level as well. Click here to enlarge
      1. nn7man's Avatar
        nn7man -
        Click here to enlarge Originally Posted by Blown6 Click here to enlarge
        If power and times are your thing why did you not choose the PDK, you would have avoided the clutch headache at this power level as well. Click here to enlarge
        Power and times aren't my thing, I'm not chasing any online bragging rights, this is a fun road car project for me. I have a Senna to do really fast times if I wanted
      1. Bowser330's Avatar
        Bowser330 -
        Click here to enlarge Originally Posted by nn7man Click here to enlarge
        Power and times aren't my thing, I'm not chasing any online bragging rights, this is a fun road car project for me. I have a Senna to do really fast times if I wanted
        pictures of the Senna please!
      1. quattr0's Avatar
        quattr0 -
        Click here to enlarge Originally Posted by Blown6 Click here to enlarge
        If power and times are your thing why did you not choose the PDK, you would have avoided the clutch headache at this power level as well. Click here to enlarge
        Can't tell if you're being sarcastic as his manual T makes more power than any 991.2 T PDK out there, I believe, or at least what 3DMetal thought.
      1. nn7man's Avatar
        nn7man -
        At Silverstone a few months ago:

        Attachment 59557
        Attachment 59558
        Attachment 59559
        Attachment 59560
        Attachment 59561
      1. quattr0's Avatar
        quattr0 -
        Click here to enlarge Originally Posted by nn7man Click here to enlarge
        I need to get a clutch upgrade sorted which is proving a bit slow... Once I have then I'll be embarking on a 3rd round of upgrades which will comprise:

        Upgraded clutch
        KW lowering spring kit (height adjustable)
        KW 8mm spacers to complement the drop
        Stainless steel braided brake lines
        Some mods from T.O. listed here you might find them helpful. He sold his tho.

        https://www.porscheboost.com/showthr...892#post826892
      1. Bowser330's Avatar
        Bowser330 -
        Click here to enlarge Originally Posted by nn7man Click here to enlarge
        Holy Jesus, Thank you sir
      1. nn7man's Avatar
        nn7man -
        Click here to enlarge Originally Posted by Bowser330 Click here to enlarge
        Holy Jesus, Thank you sir
        Thank you Click here to enlarge

        Full visual carbon body in gloss, dtto interior
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by nn7man Click here to enlarge
        I have a good tuner Click here to enlarge
        Pleasantly surprised with 9e. Never heard of them before but based on your results I'd send anyone with a 991.2 in the UK there.