"'Volvo'and 'performance' are incompatible no more"

Discussion in 'General Motoring' started by Mike, Jan 14, 2006.

  1. Mike

    Mike Guest

    Mike, Jan 14, 2006
    #1
  2. Mike

    athol Guest

    Have been for some time. Some of us have done engine conversions on
    older Volvos. :)
     
    athol, Jan 14, 2006
    #2
  3. Mike

    James Sweet Guest


    Even without an engine conversion, a 240 Turbo with a bit of extra boost
    can be an impressive performer, especially for a 22+ year old car.
     
    James Sweet, Jan 14, 2006
    #3
  4. Mike

    Boris Mohar Guest

    My 91 740 is around 250hp which is small fry compared to what some Swedes
    have done.



    Regards,

    Boris Mohar

    Got Knock? - see:
    Viatrack Printed Circuit Designs (among other things) http://www.viatrack.ca

    void _-void-_ in the obvious place
     
    Boris Mohar, Jan 14, 2006
    #4
  5. Mike

    athol Guest

    Yes, but how does that compare to an alloy headed 350 chev with about
    11.5:1 compression, etc.? :) (That's the new engine I'm getting parts
    together for ATM - the old engine is still okay but is only about 300HP.)
     
    athol, Jan 15, 2006
    #5
  6. Mike

    James Sweet Guest



    IMHO there's just something sacrilegious about jamming a pushrod V8 into
    a Volvo, it just seems such caveman technology. Can't be great for the
    fuel economy or serviceability and what's the extra hundred pounds or so
    under the hood do to the handling?

    Now an interesting engine swap would be the S80T6 motor, smooth refined
    all aluminum DOHC twin turbo producing about 300HP stock. It's gotta be
    good for 400 HP with some tweaking, anything more than that will likely
    exceed the traction abilities of any streetable tires.
     
    James Sweet, Jan 15, 2006
    #6
  7. Mike

    athol Guest

    A high compression engine with cold air induction, good exhaust, decent
    gearing, etc. running on straight LPG is quite a cheap thing to run,
    particularly relative to its performance. :) I considered running
    less compression and a pair of turbos but the economy wouldn't be as
    good!

    The 264 with all cast iron 350 weighed in at 1440kg, which is equal to
    the weight of the equivalent 265, being 50kg more than the standard
    264. The front of the engine is further back in the engine bay than
    the front of the V6, with the back of the gearbox _far_ further back,
    so the weight distribution has actually improved!

    I fitted the engine and gearbox without changing the front suspension
    and it sat very slightly lower but handled fine. I later went to a
    pair of '78 front coils, because the wire diameter was larger than the
    later ones, fitted bilsteins front and rear (rears specifically because
    the ford 9" is heavier than the dana 30 and the extra weight
    theoretically needs better damping), urethane bushes in the bottom of
    the front end, lower chassis braces (again from '78 parts car) as well
    as the original top strut braces.

    The new swaybars and adjustable strut top bearings are sitting in the
    garage waiting to go on but aren't essential... One of these days,
    I'll also pull the large-bush rear upper control arms out of the '88
    parts car and fit them, too.

    Of course, the new engine will have alloy heads, manifold and water
    pump and new extractors (headers), so will be lighter than the current
    one. That will be offset by the heavier gearbox (change from 3-speed
    to overdrive 4-speed auto). The weight distribution will shift even
    further back.

    I'd be curious to know how the weight of the 6cyl diesel 2-series
    compares...
    Traction like that is only an issue from a standing start. Aside from
    having a detroit locker (major traction advantage off the line), I'm
    more interested in how the thing performs at highway speeds. We have
    a _lot_ of 2-lane roads around here and being able to overtake quickly
    is important. :)
     
    athol, Jan 15, 2006
    #7
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