New and Used Car Talk Reviews Hot Cars Comparison Automotive Community

The Largest Car Forum in the Philippines



Page 1 of 3 123 LastLast
Results 1 to 10 of 21
  1. Join Date
    Jul 2005
    Posts
    83
    #1
    Anybody have a spare engine to experiment on para we can verify if this is true or not?

    http://www.popsci.com/popsci/futurec...cbccdrcrd.html
    http://www.somender-singh.com/
    http://www.somender-singh.com/index....d=10&Itemid=26

  2. Join Date
    Oct 2002
    Posts
    29,320
    #2
    I read about that engine mod... no idea if it really works though

  3. Join Date
    Nov 2002
    Posts
    1,726
    #3
    From an episode of Auto Motor & Sport, a guy from Audi claims gasoline engines in the future can be more economical than diesels. Manufacturers will just have to act quickly to get it done.

    This innovation may just be in relation to that. We certainly hope so.

  4. Join Date
    Jan 2005
    Posts
    4,866
    #4
    interesting.

    but it did note that the emissions went up.

  5. Join Date
    Oct 2002
    Posts
    14,824
    #5
    mahirap kapag lumang mga engines ang basis ng fuel saving gadgets... iba-iba kasi ang condition ng mga engines...

    though to note... Merc & Audi (???) did experiment with more efficient "turbulent" air flows. my memory is kinda rusty but I think that this was way back a decade ago.

    in a nutshell... the only way to really have a "gas saving" modification is to buy a new vehicle (like the city or matrix) in which manufacturers spent millions in R&D to make their engines more fuel-efficient.

  6. Join Date
    Oct 2002
    Posts
    29,320
    #6
    ...or convert to alternative fuel systems.

  7. Join Date
    Oct 2002
    Posts
    3,790
    #7
    ...gumamit na lang kayo ng khaos....:suka:

  8. Join Date
    Mar 2005
    Posts
    97
    #8
    I googled a bit and a lot of people have tried putting grooves on their heads with good results. I wanna know if there is a shop where I can have this done. I really would like to try it.

    Here are a few links for those who are interested:

    http://www.jeremiahsviolins.com/grooves.htm

    http://forums.turbobricks.com/showth...t=66779&page=7

    http://www.mazda626.net/index.php?sh...ded&pid=255078

    [ame="http://www.youtube.com/watch?v=Ss7slCT0Vpw"]YouTube - Haciendo Sing Grooves a las culatas de un 3000GT VR4[/ame]

    Quote Originally Posted by norrissee View Post

  9. Join Date
    Aug 2004
    Posts
    22,710
    #9
    Note that the power gains claimed are from raising the compression then using the grooves to control detonation and pinging. The grooves alone may not give you any power gains at all... and as per one dyno, might even lose you some top-end power.

    Unless you have a spare cylinder head to practice on, I wouldn't recommend doing this, though.... but it probably won't hurt you much, as long as you do it properly. At worst, you'll lose a few horsepower. But get it done properly, at a machine shop. sharp edges or burrs from cutting may create hot points where premature detonation can occur.

    The theory kind of reminds me of Mazda's VTCS, which promotes more turbulence at idle to ensure more complete combustion.

    Ang pagbalik ng comeback...

  10. Join Date
    May 2006
    Posts
    3,722
    #10
    Here we go again...

    Go for an LPG powered car nalang, that is definitely sure

Page 1 of 3 123 LastLast
Gas Saving Modification