1. The Turbo Forums - The discussion board for both hard core and beginner turbocharged vehicle enthusiasts. Covering everything from stock turbocharger cars, seriously fast drag racers, boats, motorcycles, and daily driver modified turbo cars and trucks.
    To start posting in our forums, and comment on articles and blogs please

    IF YOU ARE AN EXISTING MEMBER: You can retrieve your a password for your account here: click here.

Who is making big power on l92 heads?

Discussion in 'LS1, LS2, LS6, LT1, SBC Turbo and other GM Specfic Turbo Tech' started by miata347, Feb 29, 2012.

  1. miata347

    Joined:
    Apr 30, 2009
    What's your combo and power it makes. The key to these heads is great power on low boost. There is plenty of talk about deck thickness limiting boost level due to pushing water.

    Is it just the tune?
     
    miata347, Feb 29, 2012
    #1

  2. slow67

    Joined:
    Mar 26, 2007
    I think they are about the same as any other stock casting. There is a TrailBlazer SS that runs 9.0's on the back bumper running them......
     
    slow67, Feb 29, 2012
    #2

  3. big dave

    Joined:
    Feb 16, 2005
    Don't buy into the hype.... They are fine and work quite well for more horsepower than most will need or make.

    Up until somewhere around 800-850rwhp I wouldn't give it much thought.

    I ran LSA heads up into roughly 870rwhp range through a 4L80 trans and had zero issues.
     
    big dave, Mar 1, 2012
    #3

  4. RipsnortMN

    Joined:
    May 10, 2011
    Bumping this...I am curious also about this. Is 700ish rwhp pretty easy to do on lower boost with L92's?
     
    RipsnortMN, Sep 8, 2012
    #4

  5. miata347

    Joined:
    Apr 30, 2009
    From what I've found in research is you wanna run twins or a big efficient single. I've found 1000+ rwhp combos with these heads but doesn't live long. 7 to 800 I would guess should do fine. Ls9 gaskets,ARP head studs and a good tuner. I was gonna run a t6 475 but seems it wouldn't be in a good efficientcy range not to cause trouble. Gonna go 480 or 82 and run 15 to 18 psi.
     
    miata347, Sep 8, 2012
    #5
Loading...
Similar Topics - making big power Forum Date
Starter making grinding noise while cranking on a 5.3?? LS1, LS2, LS6, LT1, SBC Turbo and other GM Specfic Turbo Tech Oct 13, 2013
making alternator bracket sbc 71 camaro LS1, LS2, LS6, LT1, SBC Turbo and other GM Specfic Turbo Tech Feb 9, 2011
making a 95 transmission work in a 94 trans am!!!!!!!!!!!!!!!!!! LS1, LS2, LS6, LT1, SBC Turbo and other GM Specfic Turbo Tech Jul 25, 2010
Loading...
bridal-shoal