Close

Results 1 to 8 of 8
  1. #1
    Join Date
    Feb 2010
    Posts
    295
    Rep Points
    613.0
    Mentioned
    12 Post(s)
    Rep Power
    7


    1 out of 1 members liked this post. Reputation: Yes | No

    Thumbs up Precision 6766 w/H Cover vs 6776 w/S Cover

    As you know, Precision has discontinued the cast wheel in the 6776 which is the turbo that nearly every HPF stage 1, 2 and 2.5 customer has. We have used this turbo for a long time and until recently could not get another 67 series turbo from Precision that could outperform our current selection. That is until now.
    On these dyno graphs, boost levels were matched at around 6.8psi on low boost and 12.5psi on high boost.
    We later gave Gus a 16psi tune on the this turbo for pump+meth and for race fuel and an 8psi tune on pump in his stage 2. The customer directly requested the higher boost option. We added a bunch of cool new stuff to his car to support the increase power such as FIC injectors and the HPF / Walbro in tank pump. I'm having John temporarily turn it down to 13psi so I can publish the results that we are going to release all of our normal stage 1 and 2 kits at so he is dynoing the car again today.
    Chris.
    92 Octane Pump - 7psi
    Click here to enlarge
    92 Octane Pump + Methanol - 12.5psi
    Click here to enlarge
    110 Octane Leaded Race Fuel - 12.5psi
    Click here to enlarge
    110 Octane Leaded Race Fuel + Methanol - 12.5psi
    Click here to enlarge
    8 PSI Low Boost, 16 PSI High Boost (SAE)
    Click here to enlarge
    8 PSI Low Boost, 16 PSI High Boost (Uncorrected - What the car actually made!!)
    Click here to enlarge
    I drove the car (which has a lot of weight taken out of it) at the highest power figure and it was absolutely amazing. I just love the powerband.
    Click here to enlarge
    Click here to enlarge
    Click here to enlarge
    Click here to enlarge
    Click here to enlarge
    Click here to enlarge
    Click here to enlarge
    Click here to enlarge
    Chris.
    STAGE 1 M3 TURBO KIT SALE - $13,500!!!!
    Click here to enlarge Click here to enlarge Click here to enlarge
    Click here to enlarge

    HorsepowerFreaks.com
    12905 NE Airport Way
    Portland, OR 97230
    (503) 256-5600
    BMW Performance Parts
    Product questions or to purchase - sales@horsepowerfreaks.com

  2. #2
    Join Date
    Jul 2010
    Location
    Encino,CA
    Posts
    7,970
    Rep Points
    5,648.9
    Mentioned
    172 Post(s)
    Rep Power
    57


    Reputation: Yes | No
    That is not bad at all! Does that leave more room for more power in the end?

    Was just wondering have you guys tried the Garret GTX turbo's at all?
    Burger Motorsports
    Home of the Worlds fastest N20s, N54s, N55s, S55s, N63s, and S63s!

    It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.

  3. #3
    Join Date
    Jan 2010
    Location
    SoCal
    Posts
    117,157
    Rep Points
    31,307.6
    Mentioned
    2055 Post(s)
    Rep Power
    314


    Reputation: Yes | No
    Great data guys.

    If I am reading this correctly the 6766 seems to be a bit better at lower boost levels?

  4. #4
    Join Date
    Feb 2010
    Location
    Corpus Christi, Texas, United States
    Posts
    3,053
    Rep Points
    1,236.6
    Mentioned
    6 Post(s)
    Rep Power
    13


    Reputation: Yes | No
    Awesome, thanks for sharing the data!

    Do you guys happen to sell a twin-scroll T4 or V-band manifold for the S54?

  5. #5
    Join Date
    Jan 2010
    Location
    SoCal
    Posts
    117,157
    Rep Points
    31,307.6
    Mentioned
    2055 Post(s)
    Rep Power
    314


    Reputation: Yes | No
    Click here to enlarge Originally Posted by SlicktopTTZ Click here to enlarge
    Awesome, thanks for sharing the data!

    Do you guys happen to sell a twin-scroll T4 or V-band manifold for the S54?
    Not sure on the V-band but no twin-scroll from them for the S54.

  6. #6
    Join Date
    Feb 2010
    Location
    Corpus Christi, Texas, United States
    Posts
    3,053
    Rep Points
    1,236.6
    Mentioned
    6 Post(s)
    Rep Power
    13


    Reputation: Yes | No
    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Not sure on the V-band but no twin-scroll from them for the S54.
    I meant as in a twin-scroll V-band or twin-scroll T4. If they have no twin-scroll then they would have neither.

  7. #7
    Join Date
    Jan 2010
    Location
    SoCal
    Posts
    117,157
    Rep Points
    31,307.6
    Mentioned
    2055 Post(s)
    Rep Power
    314


    Reputation: Yes | No
    Click here to enlarge Originally Posted by SlicktopTTZ Click here to enlarge
    I meant as in a twin-scroll V-band or twin-scroll T4. If they have no twin-scroll then they would have neither.
    Well then, there you go Click here to enlarge

  8. #8
    Join Date
    Apr 2010
    Location
    Earth
    Posts
    5,159
    Rep Points
    526.1
    Mentioned
    4 Post(s)
    Rep Power
    6


    Reputation: Yes | No
    How much do they go for Chris?
    Click here to enlargeClick here to enlarge

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
  •