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Any guesses on HP?

Discussion in 'The Garage' started by mudbog42, Nov 1, 2006.

  1. mudbog42

    mudbog42 1/2 ton status

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    Can anybody give me a ball park range of what my truck is pushing out?
    86 K-5 with Jasper 350, edelbrock TES headers, catback with 40 series, K&N air filter, :D with stock manifold and CCC carb.:(

    Soon to put on edelbrock performer intake and carb built by Recarbco:laugh:

    Any takers or know how I can find out w/out a dyno(whether spend the money on parts):thinking: :thumb: :woot:

    :usaflag: :k5:
     
  2. onlychevy6

    onlychevy6 1/2 ton status

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    just a guess 325 hp.
     
  3. Chevy305

    Chevy305 6 Lug 14bsf Status Premium Member GMOTM Winner

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    I'd so more like 275ish.
     
  4. chalet2506

    chalet2506 1/2 ton status Premium Member

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    Statistical Probablility

    I had a great algebra teacher in High School (retired military)who said that you could could get an accurate range to an artillery target by having a bunch of guys guess the distance, then averaging them all together. The more guesses, the more accurate your range would be. I guess it's just a spin on some standard deviation formula. So, I don't know a whole lot about horsepower, but I'll guess about 289hp. If you get enough people with a little bit of knowledge to guess, you should be able to get a pretty good idea without having to pay for the dyno. Then you can use the money you saved to buy us all a beer for helping you.:deal:
     
  5. badmix

    badmix 1/2 ton status

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    Ill say low 200s.
     
  6. 55Willy

    55Willy 3/4 ton status

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    what compression ratio?
     
  7. BadBob

    BadBob 1/2 ton status

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    If you can tell me what heads, compression, and cam it has, I can run it through Dyno2000 and get the general ballpark.

    Otherwise I'm saying about 280-290
     
  8. beater_k20

    beater_k20 Banned

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    im with badmix, low 200s. Jasper doesnt built a performance engine, and you havent done anything to yours to make any more power.
     
  9. btolenti

    btolenti 1/2 ton status

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    with the CCC system......low 200's, definitely... I believe in stock form, they were rated at 160HP in 1986.
     
  10. ryoken

    ryoken Puppy Fabricator Premium Member GMOTM Winner

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    225... tops....

    But without knowing heads, compression and cam, it's just a stab in the dark...
     
  11. mudbog42

    mudbog42 1/2 ton status

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    Hmmmm....

    I think its got about 8.75:1 compression ratio. I know it is .20 over than a stock motor and its the same motor as the 87-95 trucks.

    Heads maybe a 76cc but not positive and the cam should be close to a stock one:doah:

    Not to sure about all that but....:bow: its just guesses anyways:D
     
  12. 55Willy

    55Willy 3/4 ton status

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    around 200
     
  13. mudbog42

    mudbog42 1/2 ton status

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    200 That Sucks

    Why did these motors make so little horses when like in the 70's they made like 300?:dunno:

    I want mine to push out at least 300HP:D and still keep it legal:ears:
     
  14. onetonbb74

    onetonbb74 1/2 ton status

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    I wish, my 1974 with a sbc 350 at 8.5:1 compression says 165 horse according to the owners manual for that year truck.
     
  15. mudbog42

    mudbog42 1/2 ton status

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    hmmmm....

    Maybe that was the 1st gens then:rolleyes:

    But I know that chevelles and camaros etc etc etc were pushing out way more than that:mad:
     
  16. sandawgk5

    sandawgk5 3/4 ton status

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    That is why right there... They aint trucks. All of the high horsepower motors came in the muscle cars not the trucks. Also my 87 is listed as 210 HP and 300 TQ at the flywheel from the plant. My guess would be 200-240 for your motor.

    Ira
     
  17. mudbog42

    mudbog42 1/2 ton status

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    What about the trucks??

    They need horses too:mad:
     
  18. pauly383

    pauly383 Daddy383 Staff Member Moderator

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    My guess , on a chassis dyno , you'd have less than 200 at the rear wheels . Just a hunch , and I put 10 bucks on it :thumb:
     
  19. mudbog42

    mudbog42 1/2 ton status

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    $&^$^&

    Thats just sad...all that look and hard work and no power:confused:
    [​IMG]
    [​IMG]
     
  20. mudbog42

    mudbog42 1/2 ton status

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    Thats horrible

    A V6 nissan xterra is pushing more horses than me:angry1:
     

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