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  1. #1
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    Default Where is my Horse Power? 355

    I keep hearing dudes getting consistantly more power from their rigs that very similar to mine.

    Im tying to work out if theye are talking BS or i have some limitation in my setup.


    What I知 running

    355 stroker
    come crank and rods
    Acl race pistons with valve reliefs - 9.5 ish comp ratio
    full ported heads and terra rockers into pace makers
    Blue top injectors, told they are good up to 500 hp
    222 wade cam or something similar
    Stock intake manifold
    2500 TCE stall converter
    3.36 diff

    I知 getting 159 rwkw which is about 215 rwhp

    I would guess about 210 flywheel kw which converts to 290 hp.

  2. #2
    Do you ever leave? paulzig's Avatar
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    Depends on the dyno, your driveline: transmission, stall,gear, size of diff etc. Has it been tuned? what do the air fuel ratios look like through the run?

    The manifold is the cork change it to something aftermarket I would expect 320rwhp on a dyno dynamics, or 300 on a mainline

  3. #3
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    As Paul says should be up around 300hp.

    I assume its a Turbo 700 with Automatic shifts, is it able to hold third gear under full load ?

  4. #4
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    Dyno was dyno dynamics, i was told the fuel mix was good.

    4l60e box, 2500 stall, 3.36 kaaz locker,

    320 horse would be 30% better than it is now, thats a whopping difference.

  5. #5
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    Default

    Sorry, how do you mean hold third?

  6. #6
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    some dyno operators are also f*%king dodgy. old barnes "high performance" that was at nambour qld(it's no more been closed down for years) was great at giving low dyno readouts to try to get your business dodgy old bastard....

    window wanker aka widowmaker (no) "performance"(caloundra qld) that's also been closed down for years did the same shit an would fudge the hell out of readouts when the suckers went back after he'd "fixed" the issue (scum bag also swapped peoples STD bore blocks for 40 an 60 over blocks he had).....


    try another dyno place if you can.......
    HOLDENS don't leak oil, they simply mark there territory! like a dog p!ssing on a tree

  7. #7
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    Quote Originally Posted by sambo1977 View Post
    Sorry, how do you mean hold third?
    Trans may have shifted to second gear if load was increased quickly and road speed drops off rapidly, ECU will command second gear.
    Depends on how experienced and good the operator is with the dyno.

    If there is any doubt pull the fuse for the trans ECU, that'll put it in third gear with full pressure.

  8. #8
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    Ahh ok got.

    The guy who has done the tune has a very good reputation around here, i doubt that would be a prob.

    Guess Ill start looking for a bigger intake manifold.. that means even more freakin cash. Argggh

  9. #9
    Do you ever leave? paulzig's Avatar
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    Quote Originally Posted by sambo1977 View Post
    i was told the fuel mix was good.
    Does he have a record of it or is it she'll be right? Even with what you have I reckon it should be a touch higher than what you got. I'd be looking at a mechanical problem, box slipping etc...

    Then there is ignition timing.

  10. #10
    Part of the furniture Deuce.'s Avatar
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    Quote Originally Posted by sambo1977 View Post
    I keep hearing dudes getting consistantly more power from their rigs that very similar to mine.

    Im tying to work out if theye are talking BS or i have some limitation in my setup.


    What I知 running

    355 stroker
    come crank and rods
    Acl race pistons with valve reliefs - 9.5 ish comp ratio
    full ported heads and terra rockers into pace makers
    Blue top injectors, told they are good up to 500 hp
    222 wade cam or something similar
    Stock intake manifold
    2500 TCE stall converter
    3.36 diff

    I知 getting 159 rwkw which is about 215 rwhp

    I would guess about 210 flywheel kw which converts to 290 hp.
    I dynoed 208rwkw (about 280whp).
    355", 9.1comp, 218ーintake cam, lightly modified bananas, 70mm t/b, come590 heads, good exhaust. 4l60e and that was with stock 3.08 diff.
    I would expect yours to be similar. How much torque did you get?
    Maybe your motor would make the power if it didn't nose over early because of the intake. More rev = more power.

    Even now i can feel mine slowing in the higher rpm because of the lack of airflow. I have a new intake that should help feed it, may lose some low end though.
    I'll let you know in 6 months.

  11. #11
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    Quote Originally Posted by sambo1977 View Post
    I keep hearing dudes getting consistantly more power from their rigs that very similar to mine.

    Im tying to work out if theye are talking BS or i have some limitation in my setup.


    What I知 running

    355 stroker
    come crank and rods
    Acl race pistons with valve reliefs - 9.5 ish comp ratio
    full ported heads and terra rockers into pace makers
    Blue top injectors, told they are good up to 500 hp
    222 wade cam or something similar
    Stock intake manifold
    2500 TCE stall converter
    3.36 diff

    I知 getting 159 rwkw which is about 215 rwhp

    I would guess about 210 flywheel kw which converts to 290 hp.
    You壇 expect it to be higher than 159, I had my vs dynoed on a mainline at 142rwkw with a mail order delco tune.
    Stock stroke
    218/214 cam
    4L60e
    Extractors with the horrible 土 piece
    Single cat and 2.5 press bent exhaust
    Stock injectors
    Stock manifold
    Stock gears

    Try your setup on another dyno






    Sent from my iPhone using Tapatalk

  12. #12
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    Thanks for all the great reply’s I’ll have to look into it further!

  13. #13
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    my stock stroke 304, flat tops, zero deck, pacemakers into mandrel bent 2 1/2, t700, vl bw lsd 3.08 went 160rwkw. with haltec ecu and proper tune.
    A minute of thinking can save hours of doing

  14. #14
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    Even with a stock manifold you should have 200-210rwkw with a cam similar to a 284.

  15. #15
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    Quote Originally Posted by sambo1977 View Post
    What I’m running

    355 stroker
    come crank and rods
    Acl race pistons with valve reliefs - 9.5 ish comp ratio
    full ported heads and terra rockers into pace makers
    Blue top injectors, told they are good up to 500 hp
    222 wade cam or something similar
    Stock intake manifold
    2500 TCE stall converter
    3.36 diff
    Ported heads must suit combo! but yes stock 304 intake manifold chokes at 5000rpm for 355.
    cheaper to wack stock bottom end and 284 cam see over 180RWKW

    People now swap out blue top injectors for 5.7l LS1 injectors could see few rwkw

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