1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

turboing

Discussion in 'Engine Building' started by 90LS-ef, Nov 23, 2006.

  1. 90LS-ef

    90LS-ef New Member

    Messages:
    1
    Likes Received:
    0
    Joined:
    Nov 23, 2006
    Location:
    K.C MO
    I was just wondering if it would be better to turbo an LS or to turbo an LS vtec with a turbo, do consider that i have the parts for both builds and am just wondering which would produce more power/ thanks
     
  2. get_nick

    get_nick These snozzberries taste like snozzberries... VIP

    Messages:
    11,939
    Likes Received:
    1,059
    Joined:
    Apr 21, 2003
    Location:
    Washington State
    it depends on how much you boost. i have talked to people with hugely built ls/vtecs and they say they should have just gone ls turbo. if you are leaving the block stock with mild boost, i would put the vtec head on there.

    you will get better top end and head flow with a b16 or gsr head.
     
  3. spoolin@idle

    spoolin@idle D Series FTL

    Messages:
    93
    Likes Received:
    1
    Joined:
    Nov 13, 2006
    Location:
    Kansas City
    I'm not a huge fan of VTEC. Sure, a B16 head will flow better stock for stock against the LS head. However, that's what porting, cams and valvetrain are for. I'm doing straight turbo LS (nonvtec) with my build.
     
  4. CoreyR

    CoreyR Senior Member

    Messages:
    481
    Likes Received:
    0
    Joined:
    Apr 20, 2004
    Location:
    CT
    VTEC motors will always make more power. if you want torque and nice power in the low/mid range go with a straight LS. if you want a topend car go with the VTEC setup.
     
  5. hondasniper

    hondasniper Engine Builder

    Messages:
    99
    Likes Received:
    0
    Joined:
    Feb 21, 2005
    It depends how much boost you are running and when it hits full boost. If your turbo spools up really fast, then when you hit vtec, it can cause wheel spin since you are getting a sudden increase of power. If you are launching while in vtec then it really won't matter.
     
  6. get_nick

    get_nick These snozzberries taste like snozzberries... VIP

    Messages:
    11,939
    Likes Received:
    1,059
    Joined:
    Apr 21, 2003
    Location:
    Washington State
    this is bullshit. you wont get any wheelspin just by hitting vtec. and if you launch in vtec or whatever he's trying to say, you will get extreme wheel spin and will run a horrible time. you would never want to launch at that high of an rpm.
     
  7. Exodus

    Exodus Junior Member

    Messages:
    137
    Likes Received:
    0
    Joined:
    Jan 5, 2006
    Location:
    Dayton, OH
    VTEC heads should be used when going for more power and more RPMs. Their function is superior to non-VTEC heads, period. Turbocharged VTEC engines require different fuel and ignition setups as well as more extensive tuning than NA builds.

    From the factory, VTEC won't engage without a load on the engine, so I imagine it's going to have to finish synchronizing before it drops below the changeover when you launch the car. This is not a condition that needs any attention, launching that high is impractical.
     
  8. hondasniper

    hondasniper Engine Builder

    Messages:
    99
    Likes Received:
    0
    Joined:
    Feb 21, 2005
    you know, i thought the same thing about the vtec until i actually saw it. I forgot the vid i saw and what not, but i'll ask my friend if he remembers. And it all depends on the turbo you have. Also, I know a couple people who launch at ~8k and shift at 11500, but they are running a full race setup and have either drag radials or slicks. Call it bullshit if you want, but its truth. I'm sure there's a vid out there that has someone doing the same thing.
     
  9. Exodus

    Exodus Junior Member

    Messages:
    137
    Likes Received:
    0
    Joined:
    Jan 5, 2006
    Location:
    Dayton, OH
    Unless you reprogram your ECU to allow the engage to engage VTEC withOUT a load on it, you would not be able to launch the car in VTEC. If you did, it would feasibly provide a better ET for you, provided you had an adequate setup for handling it.
     
  10. laoboisosilly

    laoboisosilly Slammed EJ2 y0

    Messages:
    45
    Likes Received:
    0
    Joined:
    Dec 10, 2006
    Location:
    Atlanta
    all in all, their both the same, only one of them will have vtec :huh:
     
  11. Exodus

    Exodus Junior Member

    Messages:
    137
    Likes Received:
    0
    Joined:
    Jan 5, 2006
    Location:
    Dayton, OH
    NOTHING is the same as VTEC, not VVTi, Li, or anything else. It's an amazing innovation and one of the simplest routes for power with Honda engines. It's ri-friggin-diculous mang
     
  12. hondasniper

    hondasniper Engine Builder

    Messages:
    99
    Likes Received:
    0
    Joined:
    Feb 21, 2005

    :fosho:
     
Verification:
Draft saved Draft deleted

Share This Page