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  1. #1
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    Default max hp out of 202

    hey guys was thinkin today about how much hp a 202 could develop and thought id ask the question.

    so how much has been producted out of a 202???

    na of course...

  2. #2
    been here .......too long Smitty2's Avatar
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    I did an LJ 202 in the 80's
    went drag racing with it
    it made 220rwhp @ 6800

    the Group NC Torana racers these days
    are making 330-350 flywheel hp ..maybe a tad more
    on pump fuel... based on the dyno charts I have seen


    hth

    Smitty

  3. #3
    OMR346 pumba's Avatar
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    it all depend swhat u do to it mate.

    a mate of monie had a VK black 202, originally EFI, but converted back to carby... had .080" (or something huge liek that) oversized pistons, massive cam, jetted 350 holley, strocked out to a 213ci, huge compression... NA it was ment to run mid 13's.... it was a very grumpy motor. i believe it was built by the TRAPNELL boys up here in brissie

    he ended up wacking on a SC14 blowerr and killed the engine
    Last edited by pumba; 28-07-2008 at 10:39 PM.
    Quote Originally Posted by cbkey View Post
    negative bunch...you never see me saying anything negative..

  4. #4
    Part of the furniture BossHoggett's Avatar
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    What is it for supercharged ?

  5. #5
    in the shed buildin shit 3554me's Avatar
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    who would've thought , all that from a old holden six, must be near breaking point at that power level.
    Last edited by 3554me; 29-07-2008 at 12:16 AM. Reason: dum

  6. #6
    in the shed buildin shit 3554me's Avatar
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    in my search for a tuff 202 i found this

    check out this for a cross breed




    1. to get 245 using a holden crank. you need to offset grind the
    crank 350 thou. While this does take a considerable about of meat
    off the crank it is fine and i never had a problem with my motor or
    my mates that I built. Then again my motor only ran for 6 months
    until an unfortunate accident (which i do not wish to rehash... I am
    over it)
    2. The bore is taken out 40thou. This give you a total of 3.665
    oversized pistons. And with a stroke now of 3.950 you have a total
    swept volume of 250ci. I ured on the side of safety and did not off
    set grind fully but incurred more cost for my rods and pistons as I
    got them custom built. the stroke in mine ended up having a 325 thou
    offset making calculated swept volume to be 246ci.
    3. The cam was a special build and designed it for a full house
    torque motor. whilest I never got the car on the dyno the projected
    torque was 390 lbs/ft with 320 HP at the flywheel. I am not willing
    to explain the cam profile as there is a bucket load of work
    involved here and would like this to remain mine on that one.
    4. The head that was run was off a EA Falcon. I did not do the
    engineering with this bit but from memory it was bolted on backwards
    and a hell of a lot of work went into placing the head on the red
    motor.(well for me it was a blue block. I can tell you I am not
    sure I would use this again. a Blue or Black head would work just
    as well. and is hellishly easier to build.
    5. The intake was standard issue Fraud, with some custom work and
    mega engineering. The extractor needed to be custom built as
    nothing would fit the right way as the pipe fac the wrong way
    naturally.
    6. The EFI setup I ran was a factory holden one and had major work
    done to get it setup properly. Really you would need a dyno but
    seeing I needed to run the motor in I felt that the dyno would come
    after this. It was a real headache but if I was doing it again I
    would be having plenty of dyno time.
    7. My bottom end was weird and I am not sure you can even still get
    them but i did not use shell bearings for either the main journels
    or the big ends. these where a cage roller style bearing and I
    could not explain to you the BIG difference these made.

    8. I needed to mod the clutch setup to clear the intake but it was
    doen so that I could still service the master. As you would expect
    the EH is not exactly huge in area of the engine bay.

    9. The crank got doweled so that the flywheel would not cause me to
    loose my feet. We also contracted a machinest to machine the
    flywheel (CNC'ed) to reduce the overall weight of the unit. This
    assisted the car to rev more but also use the extra torque as
    previous. The diff I ran was a 3.45 BW unit from a VL.

    10. This combination was a real sleeper. from teh outside you
    could not tell that there was an animal below. The other thing was
    it idled so smoothly. The exhuast note was definately not the
    standard holden 6 nor was it fraud noted. It is actually hard to
    describe. Was a little airy with a hint of bark...

    Yes this was a street motor. Yes i did alot of machining on this.
    Some of the work was done by my mate as we built both of these
    motors. Seening the amount of time that has surpassed on the build
    I am not sure of some of the exacts but do have a file on it in my
    cabinate. I am looking to build another motor of the same
    existance. However, this will be a long way off yet. Particulars i
    do remember is that I did run a Holden head gasket. I milled all
    Fraud logos off the rocker cover and I also polished and linished
    everything i could. Many whom saw the car asked what the hell motor
    I had. I also cast a new block number so that my block read 245 on
    teh side where 202 was. That confused many people. I had to prove
    via the engine number a number of times that it was a Blue commodore
    block. The head was a little hard to help people explain. Hehe.
    there is much you can do to the humble holden six.

    In relation to the block splitting, there really is nothign you can
    do. The girdle will assist to a greater extent but if the block is
    going to split then it will split. One thing we all will agree on is
    the fact that old surge is a huge issue for Early holdens. My
    suggestion here is a baffled and windaged tray oil pans and
    polishing the oil galaries so that the returns quickly. I know it
    is a heap of thoughts and lots of engineering, But if planed
    correctly then all will be good. Any questions just ask...

  7. #7
    Part of the furniture BossHoggett's Avatar
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    LSD is a wonderfull drug apparently.

  8. #8
    been here .......too long Smitty2's Avatar
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    Quote Originally Posted by BossHoggett View Post
    LSD is a wonderfull drug apparently.

    hehe...agree

  9. #9
    in the shed buildin shit 3554me's Avatar
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    PerformanceForums - Krogdahl twin cam Heads

    the sorce of it all

    and yes drugs are baad

  10. #10
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    hmmm thanks guys.... ive heard of somestrret driven toranas gettin around mid to high 200's at rear wheels.

    and thats with na too...

  11. #11
    been here .......too long Smitty2's Avatar
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    Quote Originally Posted by 70rey View Post
    hmmm thanks guys.... ive heard of somestrret driven toranas gettin around mid to high 200's at rear wheels.

    and thats with na too...
    should be ok
    25 years ago..I was getting 220 at the rear

  12. #12
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    Default im mad

    Quote Originally Posted by 70rey View Post
    hey guys was thinkin today about how much hp a 202 could develop and thought id ask the question.

    so how much has been producted out of a 202???

    na of course...
    Ok so call me mad and I won't disagree. I love the Holden 202 and so do another 3 of my mates. We are on the process of planning (and saving) to do a full recast in high grade steel of a Holden 202 strengthening all key areas and then running at insane boost levels. We. Hope to achieve 700hp+ as you can imagine this is stupidly expensive and most people would just spend the money on an LSA supercharged crate motor and make similar hp at a third of the cost. That would not give that shot eating grin when you blast a big v8 on the strip tho. I will post details when the project fianally begins. It's probably a year or so at least from even starting but we will get there.

  13. #13
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    Hi.

    CRD Engineering are in the process of making an upgraded Holden 202 block.

    Might be worthwhile looking into.

    https://www.facebook.com/CRD-Enginee...0747139317802/

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