Aftermarket CV boots better than OEM?

Discussion in 'General Motoring' started by Steve Pankow, Nov 24, 2005.

  1. Steve Pankow

    Steve Pankow Guest

    I had somebody try to tell me that there's a new manufacturer of CV
    boots out there that uses thicker rubber than Honda OEM. Unfortunately
    I don't remember the name of the maker. Anyone heard of this?
     
    Steve Pankow, Nov 24, 2005
    #1
  2. Steve Pankow

    jim beam Guest

    er, so what exactly does "thickness" have to do with rubber selection,
    rubber quality or component design? i've yet to see an instance where
    oem componentry quality did not exceed that of after-market for honda.
    you can therefore be confident that oem is the way to go. ford otoh...
     
    jim beam, Nov 25, 2005
    #2
  3. Steve Pankow

    TE Cheah Guest

    | i've yet to see an instance where
    | oem componentry quality did not exceed that of after-market for honda.

    Honda fits only short branch ( 4 into 1 pipe ), cheap & heavy cast iron
    exhaust*manifold for its engines <2.2 litre, even a F22A's *'s twin pipes
    are short. Result is lower though adequate torque @ low rpm ( as during
    buyers' test drives ), but very low ( <½ as much ) torque & mpg @ high
    ( >3000 ) rpm, this difference rises with rpm.
    http://circletrack.com/techarticles/73598
    My local-made 4-2-1 * uses aluminised mild steel [ii] is 13 kg <
    original * [iii] has longer twin pipes than a F22A's * [iv] twin pipes'
    interiors' total cross section area is 60% > original * ( single pipe )'s.
    In 6-02 I saw a new Civic vtec 1.6 litre engine with very short * : a waste
    of vtec ( no way is torque / mpg esp @ high rpm maximised ).
    www.turborick.com/gsxr1127/gasoline.html para 10.2(1) indicates how
    bad a civic's * is. Many car makers ( incl Nissan in Sunny 130Y, Hyundai
    in Sonata 2.4, Proton in Waja 1.8 ) save on *, because 99.99% buyers
    don't test drive on highways, or know / experienced a difference between
    short & long branch *.

    My F20A had crude carbon-core cables made by Sumitomo, efficiency
    was low ( even by 1990 std ) : longest cable has 12.7k ohm
    www.magnecor.com/magnecor1/truth.htm I've changed my F20A's plug
    cables 4x, present set ( German cables ) has just 0.2 ohm/ ft : when
    warm & w/o load, my F20A can idle @ just 600 rpm, with load then
    550 rpm ( without shaking / stalling ). Plug gaps are 2mm. All these are
    impossible with crude carbon-core cables. How low can your original
    spec engine ( with crude carbon-core cables ) likewise idle @ ?
    Carbon can absorb RFI, but cannot conduct as well as metal : high
    efficiency cables makers coil metal wires around carbon cores, then use
    these coiled wires to conduct : spark size Ø expands from ½ to 3 mm,
    10x brighter, colour turns fr deep blue to bright yellow, 5x as loud.( in
    open air ).
    @ high rpm, any engine with 1 small coil & crude carbon-core cables
    will have very small sparks, low torque & loud exhaust noise. This
    inadequacy is esp bad in a 2 litre SM4 accord ; combined gear ratio
    3.1323 is > those of 2 litre Toyota / Nissan models, e.g. 9.78% >
    Nissan Cefiro' s 2.8530 : 75 mph requires 3341.7rpm, but a Cefiro
    requires just 3043.7 rpm, on the same 205/65R15 tyres.
     
    TE Cheah, Dec 2, 2005
    #3
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