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Precison T88 housing vs t78 in .96 AR

Discussion in 'Turbo Tech Questions' started by racesloth, Sep 8, 2008.

Page 1 of 2

  1. racesloth

    Joined:
    Nov 8, 2007
    For those wondering about the size diffs in the two turbos here is a pic. 88=4"vband turbine side and 78=3.5vband - both are T4 flange

    t4 96 vs t4 88 housings.jpg #ad
     
    racesloth, Sep 8, 2008
    #1

  2. boosted5_0

    Joined:
    Jun 21, 2008
    Wow, that is a big difference. Thanks for posting the pics.
     
    boosted5_0, Sep 9, 2008
    #2

  3. Hemann

    Joined:
    Sep 2, 2005
    Is that 88mm yours?
     
    Hemann, Sep 9, 2008
    #3

  4. eades5.0

    Joined:
    Mar 2, 2003
    :2thumbs:
     
    eades5.0, Sep 9, 2008
    #4

  5. racesloth

    Joined:
    Nov 8, 2007
    No, I have the 78. I was thinking about the 88, but it requires more changes than I am willing to make at this point. I was telling Geddy how I just need to get the thing running first then maybe down the road have Brian make the changes for me. Your car running yet?
     
    racesloth, Sep 9, 2008
    #5

  6. lo fo do

    Joined:
    Jul 18, 2004
    That is cool to see side by side.I had a pt 76gts on my car last year and went 8.93@ 150.Then i got the hair brain idea to go to a pt 88.So far that seems to be a waste of money.I havent gone not one tenth or even one hundreth faster with the 88.My mphhas gone up 4mph but nothing else.i have gone from 19lbs to 23 and no diff.So im not sold on my 88 yet. >:(
     
    lo fo do, Sep 9, 2008
    #6

  7. twofast

    Joined:
    Jan 31, 2003
    that damn boost controller is slowing you down!
     
    twofast, Sep 9, 2008
    #7

  8. Hemann

    Joined:
    Sep 2, 2005
    My car is getting close to running.

    I just seen that 88mm on a 331 doing 5.60 in the 1\8.
     
    Hemann, Sep 10, 2008
    #8

  9. Gen1SVE

    Joined:
    Sep 13, 2006
    is the 88 a T4 or T6?
     
    Gen1SVE, Sep 10, 2008
    #9

  10. racesloth

    Joined:
    Nov 8, 2007
    This T88 is a T4 mid frame...
     
    racesloth, Sep 10, 2008
    #10

  11. Brent Davis

    Joined:
    Jan 30, 2003
    That T-4 Precision housing is the same one that my Majestic 88mm turbo is built on. My car is no track terror....yet but it has been 170 MPH with that turbo to the 1/4 and well over 1300 HP. You can only get that housing from Precision though and from what I remember, you can't buy it seperately :bah:.
     
    Brent Davis, Sep 10, 2008
    #11

  12. cobrasan

    Joined:
    Mar 12, 2006
    seems like that 76 would have been a restriction on the 408 and I'm really surprised the 88 didn't pick-up alot.
     
    cobrasan, Sep 10, 2008
    #12

  13. twofast

    Joined:
    Jan 31, 2003
    you think by reading on here that a 408/t-76 combo would only rev to 3000rpms and blow it self apart. the car ran great and didn't have any headgasket issues. he made 800 @ 20psi w/t76 and 835 @ 20psi w/pt88.
     
    twofast, Sep 10, 2008
    #13

  14. 13oosted coupe

    Joined:
    Jun 30, 2006
    WOW that's interesting what size down pipe on the 76gts set up
     
    13oosted coupe, Sep 10, 2008
    #14

  15. twofast

    Joined:
    Jan 31, 2003
    3.5"
     
    twofast, Sep 10, 2008
    #15

  16. Gen1SVE

    Joined:
    Sep 13, 2006
    What size pipe going into the turbine housing?
     
    Gen1SVE, Sep 10, 2008
    #16

  17. racesloth

    Joined:
    Nov 8, 2007
    T4 flange in --- 4" vband out
     
    racesloth, Sep 10, 2008
    #17

  18. Gen1SVE

    Joined:
    Sep 13, 2006
    Crossover diameter size? Inlet pipe size before the turbine housing. I got the downpipe size.
     
    Gen1SVE, Sep 10, 2008
    #18

  19. cobrasan

    Joined:
    Mar 12, 2006
    i did not know they made a 4" v-band t4 housing for the 76gts
     
    cobrasan, Sep 10, 2008
    #19

  20. Gen1SVE

    Joined:
    Sep 13, 2006
    The 4" DP is for the 88mm :doh:
     
    Gen1SVE, Sep 10, 2008
    #20
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