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tunnel ram or blower?

Discussion in 'Shop - Engine' started by mxnocean, Jun 12, 2008.

  1. mxnocean

    mxnocean Member

    Joined:
    Jun 11, 2008
    Location:
    Grover Beach, CA
    this is prob the wrong forum for this but oh well, I am setting my truck up for sand drags but I was needing to know if I should run blower or tunnel ram, my engine could be set up for either so I just needed to get some input, its only 300ft track so bottom end is key, I got the gears, heads, blah blah just torn between getting a tunnel ram or blower, its a 350 (355). any idea?
     
  2. SANDlessNSeattle

    SANDlessNSeattle rock solid user name

    Joined:
    Dec 14, 2002
    Location:
    Brier, Wa. USA
    both of em
     
  3. Tipracer

    Tipracer Well-Known Member

    Joined:
    Sep 6, 2005
    Location:
    So. CA
    blower
     
  4. mxnocean

    mxnocean Member

    Joined:
    Jun 11, 2008
    Location:
    Grover Beach, CA
    ya I was leaning torwards the blower but I hope that sand wont jack it up
     
  5. 200MPHTape

    200MPHTape Well-Known Member

    Joined:
    Aug 12, 2004
    Location:
    Santee, Ca.
    Thats what Air Filters are for! I'm sure the mods will move this to the Shop/ Driveline forum!
     
  6. Tipracer

    Tipracer Well-Known Member

    Joined:
    Sep 6, 2005
    Location:
    So. CA
    should be moved but , big ol filter on top of a big ol honkin blower...
     
  7. Ranch Hand

    Ranch Hand Member

    Joined:
    May 18, 2006
    Location:
    Coronado, CA
    I can't determine from from your description, if you have already built the short block or not.......... If the short block is complete the decision between a tunnel ram or a blower has already been made by your choice of pistons. The tunnel ram will require a high compression engine, 12 to 1 or higher to achieve the maximum and a blower motor will require a a much lower compression ratio, I believe around 8.5 to 1, maybe even lower, to live.

    Tunnel rams are much cheaper to maintain as well as the initial expense for the manifold and carbs. The tunnel ram also will not make nearly the horsepower of a supercharged engine. Blower motors are awesome, but like most cool things, they are expensive to build and maintain. The eternal dilemma of racers: FAST = MONEY :D
     
  8. johnnyweb

    johnnyweb Well-Known Member

    Joined:
    Jan 24, 2003
    Location:
    Gilroy-Shop
    Thats what i was thinking. pretty hard to set up for both.
     
  9. empty pockets

    empty pockets Well-Known Member

    Joined:
    Mar 6, 2008
    Location:
    Lake Havasu City, AZ.
    Tunnel Ram, Blowers don't like the sand, and it will make it's way in there if that blower coughs or has a hick-up
     
  10. mxnocean

    mxnocean Member

    Joined:
    Jun 11, 2008
    Location:
    Grover Beach, CA
    thanks guys for the input, does any one know what hardcore 4x4 from bakersfeild run in there trucks
     
  11. dArkside

    dArkside Member

    Joined:
    Nov 13, 2007
    Location:
    Newport Beach, Ca.
    yep.....
     
  12. jbarker@banks

    jbarker@banks Active Member

    Joined:
    Feb 10, 2008
    Location:
    azusa

    Turbos.
     
  13. nimrod

    nimrod KOOK!

    Joined:
    Dec 4, 2005
    Location:
    San Clemente, Ca.
    4 cylinder subie with lots of expensive go fast parts from Cosworth in Torrence.......

    Kidding, just had to throw my buggy dork opinion out there to kick off the weekend......

    Does anyone know why Score doesn't allow turbos????


    Popcorn please......
     
  14. 9Iron

    9Iron Member

    Joined:
    May 15, 2006
    Location:
    Franklin, CA
    Heard it was the lag...
    if driver is knocked out, looses control, etc the motor is still spooled up and
    can be bad for anyone close by.
    Course workers included, could get ugly quick...
     
  15. jbarker@banks

    jbarker@banks Active Member

    Joined:
    Feb 10, 2008
    Location:
    azusa
    Lag? A turbo is driven buy the engine exhaust (I know, duh) but the only way you could get into a runaway condition is if the drivers foot is still on the gas. Having the turbo(s) on the truck would make no difference as once the throttle blades are closed the engine would slow down normally.:D
     
  16. stevenc

    stevenc Member

    Joined:
    May 16, 2008
    Location:
    Riverside Ca
    Something that wasn't really addressed here.

    You say you want bottom end... A tunnel ram is not really the best way to go around getting bottom end. A tunnel ram is primarily designed for high rpm power building. If you want to make the most bottom end, you want a short runner intake manifold. You can get some 'okay' bottom end out of a tunnel ram, but all of your other components need to be matched, and tuning will be the key.
     
  17. mxnocean

    mxnocean Member

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    Jun 11, 2008
    Location:
    Grover Beach, CA
    I think i might just go with neither
     
  18. John F2000

    John F2000 Active Member

    Joined:
    Feb 21, 2006
    Location:
    El Cajon Ca
    A blower and a tunnel ram are two different reasons completely for using them. Usually it is a class decision of what is allowed. If anything is allowed then there is no other answer than a blower, it will make more power.
     
  19. John F2000

    John F2000 Active Member

    Joined:
    Feb 21, 2006
    Location:
    El Cajon Ca

    Someone else already answered this but "spooled up and out of control" is not the reason. If you search the forum you will see one on turbos with everyones best guess. In general it is old thinking. Turbos were considered exotic years ago, only teams with money would run them. Therefore they were not allowed. Now days it is one of the cheapest forms of power and they should be allowed in a specific class.
     
  20. mxnocean

    mxnocean Member

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    Jun 11, 2008
    Location:
    Grover Beach, CA
    is there any blower out there that can be used on 10:1 compression and be safe for a 350
     

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