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

Fuel Cells

Discussion in 'General Tech and Maintenance' started by SolLess16, Oct 23, 2003.

  1. SolLess16

    SolLess16 Senior Member

    Messages:
    604
    Likes Received:
    0
    Joined:
    May 19, 2003
    hey guys wanted to know your opinion on fuel cells - looking to road race next year and want to lose some weight , anyone know how much a 10gallon delsol gas tank weighs? thanks
     
  2. SolLess16

    SolLess16 Senior Member

    Messages:
    604
    Likes Received:
    0
    Joined:
    May 19, 2003
    anyone??
     
  3. jamesA

    jamesA Well known pissed off telephone guy VIP

    Messages:
    16,127
    Likes Received:
    1,020
    Joined:
    Aug 10, 2003
    15 lbs empty. that'd be my guess.
     
  4. Loco Honkey

    Loco Honkey Banned

    Messages:
    3,646
    Likes Received:
    0
    Joined:
    Jun 5, 2003
    The purpose of a fuel cell isn't so much as to save weight as it is to make it safer and free up some space underneath the car for things like undertrays and diffusers. Since the cell is inside the car and it has the entire car and cage around it, it makes it infinetly more difficult to puncture in a crash.
     
  5. haccord141

    haccord141 Senior Member

    Messages:
    371
    Likes Received:
    0
    Joined:
    Mar 19, 2003
    Location:
    So Cali

    true, but what are undertrays and diffusers and what do they do?
     
  6. CRX_B16B

    CRX_B16B Senior Member

    Messages:
    386
    Likes Received:
    0
    Joined:
    Oct 7, 2003
    I think a diffuser diffuses stale air from under the car and creates less drag
     
  7. haccord141

    haccord141 Senior Member

    Messages:
    371
    Likes Received:
    0
    Joined:
    Mar 19, 2003
    Location:
    So Cali
    ok, and the trays keep the bottom of the car flat so it doesn't creat air build up right?
     
  8. CRX_B16B

    CRX_B16B Senior Member

    Messages:
    386
    Likes Received:
    0
    Joined:
    Oct 7, 2003
    That would be my guess.
     
  9. GSRCRXsi

    GSRCRXsi Super Moderator Moderator VIP

    Messages:
    9,623
    Likes Received:
    345
    Joined:
    Nov 13, 2002
    Location:
    MD

    yes but in the case that the fuel cell does get punctured inside the car during a crash, doesnt it make it that much more dangerous because you have gas spewing all over the inside of the car and if it ignites you would have flames directly inside the car. rather then having it somewhat sheilded from the inside by the shell of the car.

    and im not positive on this, but isnt a fuel cell easier to puncture then a stock fuel tank? it just looks less sturdy (sp?) to me, i dunno i could be wrong.

    i do agree on the space saving thing, for diffusers and such, but does anyone make diffusers for hondas? does the tank have to be removed to use them? more specificaly are there any for a crx? and doesnt a diffuser only help at high speeds? where would a diffuser be an advantage over not having one, what kind(s) of racing?

    sorry to jack your thread
     
  10. haccord141

    haccord141 Senior Member

    Messages:
    371
    Likes Received:
    0
    Joined:
    Mar 19, 2003
    Location:
    So Cali
    fuel cells are made to be somewhat bomb proof, for crying out loud your racing! y would a stock honda fuel tank be better than a fuel cell. The only fuel tank that is romotely equal the the fuel cell would be the one that mercadies (sp?) made, it is supposed to be bomb proof.
     
  11. Loco Honkey

    Loco Honkey Banned

    Messages:
    3,646
    Likes Received:
    0
    Joined:
    Jun 5, 2003


    It's virtuall impossible to puncture a cell that's mounted inside the car, in which a cage is mounted as well. The car would have to be completely crushed in order for the cell to be punctured. If this were the case, I think a fire would be no more harmful to the driver than the sudden lack of space inside the car.



    No comment. However, I will say that air management through and around modified imports is vastly overlooked. Now that I have a project car, I'm gearing up to start fabricating some parts that you've never seen before. Don't even ask; I'm not going to say. The last time I ran my mouth, someone beat me to it because they had the resources to make said product. I will say this- what I'll be developing will improve handling, increase top speed, improve high speed accelleration, increase dynamic stability, and will improve fuel mileage. Think it's snake oil? Stay tuned.



    Aerodynamic enhancements start to come into play at around 40 MPH, depending on their design and speed range in which they're intended to be used. As for what kinds of racing; well, any type of racing where you're concerned with absolut performance above 40 MPH.



    No worries. Start a new one if you want to talk aerodynamics. The information I give will be limited, however, as I don't want to leak too much about my ideas.
     
  12. jamesA

    jamesA Well known pissed off telephone guy VIP

    Messages:
    16,127
    Likes Received:
    1,020
    Joined:
    Aug 10, 2003

    The problem with tanks catching fire isn't necessarily a problem unless you keep your tank nearly empty 90% of the time you drive like a moron. throw a match into a full tank of gas, nothing...throw on into a nearly empty tank...kaboom.
     
  13. hcivic.com

    hcivic.com Senior Member

    Messages:
    4,571
    Likes Received:
    2
    Joined:
    Jan 7, 2003
    Location:
    Calgary Alberta canada
    the main reson fuel cells are used is also due to the internal honey comb structure the prevts fuel slpashing and movment
     
  14. GSRCRXsi

    GSRCRXsi Super Moderator Moderator VIP

    Messages:
    9,623
    Likes Received:
    345
    Joined:
    Nov 13, 2002
    Location:
    MD

    i was more referring to the possibility of the cell getting dislodged and getting thrown around inside the car, which could cause it to rupture, leak, etc.

    thanks for the slight aerodynamic lesson. cause what i was thinking was that those diffusers didnt help until high speeds (100+).

    in addition how would removing your existing gas tank in favor of a fuel cell affect aerodynamics? i mean you would have this big empty space under the car now. do they just leave the existing tank in place if you do not fill up the empty space with a plate or diffuser? jus wondering what the general concensus is with this. leave the empty tank, or jus have a big hole?
     
  15. E_SolSi

    E_SolSi Member of the 20 nut club Moderator VIP

    Messages:
    30,036
    Likes Received:
    3,970
    Joined:
    Sep 28, 2002
    Location:
    CT
    you want the car as light as possible
    you want the underside of the car as smooth as possible
    you want the air coming out the rear as non-turbulant as possible

    from there draw your own conclusions :)
     
  16. Canuck 93 Civic Si

    Canuck 93 Civic Si Senior Member

    Messages:
    539
    Likes Received:
    0
    Joined:
    Oct 3, 2002
    Location:
    Mississauga, Ontario, Canada

    Exactly. Fuel cells are usually mounted in a way that is much stronger then a conventional fuel tank. Gas tanks on hondas just use two metal straps to hold everything in place, fuel cells on the other hand either use straps on have mounting points on them for bolting. Fuel cells are also made stronger. Its a metal or aluminum box as opposed to a plastic one. As for the space left under your car, its probobly a good idea to try and make a plate that fills the hole and if possible goes all the way to the bottom edge of the rear bumper. the less ammount of meterial you have pordruding into the airstream, the better. If youve ever seen someone drag racing without a rear bumper, thats why. If you look at the profile of the bottom of a car you have the floor, gas tank, spare tire well then a space, then the rear bumper. The airstream will fill the space and the bumper acts like an airbrake, slowing you down.
     
Verification:
Draft saved Draft deleted

Share This Page