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  1. #1
    Join Date
    Jun 2005
    Location
    Frodsham, Cheshire
    Posts
    61

    How much BHP / Torque?

    Claims of power output seems to be a topic that winds people up on here quite easily.

    I get asked quite often how powerful my motor is but I honestly wouldn't know to the nearest 100bhp.

    Please could somebody give me a clue what the output would be?

    Chevy 350
    Fully rebuilt and balanced
    Competition cam - fast road spec
    roller rockers
    4 barrel Holley
    K&N Filter

    Thanks in anticipation :thumb: :thumb:
    Paul T

  2. #2
    Join Date
    May 2004
    Location
    Finchampstead, Berkshire, UK.
    Age
    54
    Posts
    3,693

    Re: How much BHP / Torque?

    Paul,


    Not so easy as you'd imagine, the Chevy came in many vehicles as standard and ranged from sub 200Hp to 350 (ish) HP. You'll need to let the Chevy experts know what it started life as first.

    Rgds

    Jim
    GD Mk3 Jag based
    Supercharged LS1
    GD J1M

  3. #3
    Join Date
    Jun 2005
    Location
    Frodsham, Cheshire
    Posts
    61

    Re: How much BHP / Torque?

    OK - stated life as a 1979 Chevy Malibu, it was imported by a US soldier serving at Greenham Common (not that that bit is relevent!)
    Paul T

  4. #4
    Join Date
    May 2004
    Location
    Walsall, England.
    Posts
    424

    Re: How much BHP / Torque?

    paul
    the power the engine will produce is dependant on the type of cylinder head used , and also the compression ratio of the engine amungst other things. for example you can not support 500 bhp with a set of smog heads , the flow on the heads will not support large bhp figures.
    the bottom end makes the engine live whilst the top end produces the power.
    if you give me all, the details cam timing manifold etc i will run it through my desktop dyno programme for you.
    Adrian

    Hi Tech Cobra (American import) and 393 cu in stroker motor,501bhp 458ft lb
    T Bucket 383 small block supercharged.
    Ford 1934 coupe and 383 stroked Oldsmobile EFI

  5. #5
    Join Date
    Oct 2003
    Location
    Milton Keynes, Bucks, England.
    Age
    31
    Posts
    1,778

    Re: How much BHP / Torque?

    stock the engine produced 165 bhp, with the few upgrades you have i should think it will be around 200-220bhp, this engine was used in police cars in th states and reached a top speed of around 110 mph.

    regards
    Jim:finger: and im not a cheve expert
    Gardner Douglas

  6. #6
    Join Date
    Jun 2005
    Location
    Frodsham, Cheshire
    Posts
    61

    Re: How much BHP / Torque?

    Adrian,
    Thanks for the offer, could you be a little more specific as to what info you need? I am a bit of a nivice in this area

    Ricky - Are you sure??
    I had an Astra with 157bhp, a Supra with 320bhp and a 540BMW with about 240bhp. I know the cob is lighter but it is massively different to any of the above.
    0 to 60 appears to be easily under 5 secs (although the wife is usually screaming by then and forgets to stop the stop watch ) The engine revs freely to over 6000rpm and sounds more like a NASCAR than a police car

    Somebody tell me it aint true ...please... I'll never sleep tonight :thumb: :thumb:
    Paul T

  7. #7
    Join Date
    Jun 2005
    Location
    Frodsham, Cheshire
    Posts
    61

    Re: How much BHP / Torque?

    oh yes - and I cant spell either (novice)
    Paul T

  8. #8
    Join Date
    Oct 2003
    Location
    Milton Keynes, Bucks, England.
    Age
    31
    Posts
    1,778

    Re: How much BHP / Torque?

    This reading was taken from a dyno in the states out of my american engines book... although the 165bhp was taken at 4000 revs.


    sorry but i did find out that if this engine is rebuilt with a vortech blower it could produce over 500 bhp
    Gardner Douglas

  9. #9
    Join Date
    Oct 2003
    Location
    Milton Keynes, Bucks, England.
    Age
    31
    Posts
    1,778

    Re: How much BHP / Torque?

    i can pm you the information you need to put into a desktop dyno,
    Gardner Douglas

  10. #10
    Join Date
    Jun 2005
    Location
    Frodsham, Cheshire
    Posts
    61

    Re: How much BHP / Torque?

    That would be great Ricky - thanks.

    Just been to the garage (10 past 11 at night and working tomorrow - I must be upset) to get the build manual. The engine was rebuild over 10 years ago and had 3327.05 spent on it Surely that means nore than 200bhp
    Paul T

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