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Thread: Blacktop 20v: Displacement Increase.

  1. #11
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    Yea sorry. Im not really sure what i want. I had a bz-r, which was great. I have an 86 on the way and im not sure really sure where i want to go in terms of the engine department. The bzr was rated at what 115kw atw? but realisticly it would have been under 100kw yea? A friend of mine has a b18c 98spec teg r. with about 150kw at the front. I wouldnt mind 140-150kw at the treads from the 86 (and make the h badge bow down, he showed the bzr up big time grr). Thats assuming i keep it n/a. Is that possible for a 4age red or blacktop?

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    150kw atw would come to almost an almost 200kw engine. I'm pretty sure theres no 1600cc NA 4age that can do that.

  3. #13
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    Yea i have read that 83mm is a bit iffy. leaving a 1mm bore 1.5mm max. and thats not worth the money? a 7a block will increase the displacement easier? the 7a isnt as stong though is it? im sorry if i seem trivial i have done alot of reading its just that every forum and every opinion seems to be telling me something different. I was under the impression that the 4 series was the last iron block toyota made????

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    whats a bz-r?

    with the whole integra thing keep in mind you already have an unfair advantage as you have less weight. I have only a lightly tweaked 20V and from what I have seen so far I can show a stock integra type R the door fairly easly. Do you know what mods your friend has done?
    My website: SQ Engineering - 4AGE and 3SGE upgrade/replacement parts

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    iv seen a dyno sheet of a smallport 4age putting out like 135kw at the rear. It was estimated 170kw at the fly. I was pretty worked. Was just wondering if that was the upper limit. Wisco forgies and a high cr around 13:1 i think.

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    A 1997 Toyota levin BZR.

    Comes with a blacktop20. 6spd. blah blah.
    Mine was fairly standard. shortshift for fun . trd leads. 6A msd ignition coil think it was for a honda but it worked. I didnt install it. exh.

    His teg is pretty worked. aem fuel rail. bigger injectors. k&n intake. Full exh. headers. msd leads and coil. ngk irdium plugs. cams forget the brand and the angle sorry.

    I could keep up low down the lower end torque was enough. But vvt gets pooed on by 9000rpm vtec.
    I am looking to buy an 86. But want to make it a bit of a powerhouse. At the moment after a bit more study a n/a blacktop 7age sounds like my cup of tea.

  7. #17
    Senior Member Hen may possibly be a nut's Avatar
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    Unless you're restricted by class regs (sounds like your not) or hell bent on staying 4A, look at something else. For the power you're talking a 3SGE would be far more reliable and probably cheaper. Sure it'd cost a bit more to shoe-horn in, but you wouldn't need to spend as much on engine bits to get that power (BEAMS 3S = 210?? crank hp stock, there's one racecar getting around with 180??rwkw from an NA 3S too).

    Still not enough NA power? Look at 3VZ, 1MZ or 2GR or stuff from other makers.

    Hen

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    first up dont look at any dyno number to have that much meaning, there is too much varience between them to used for caparative reasons.

    Secondly I have to agree with Hen, he has a good point if your willing to go into the deep which it sounds like you are. One question though do you want to remain with no forced induction?
    My website: SQ Engineering - 4AGE and 3SGE upgrade/replacement parts

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    If you really want max NA power, you'd be stupid to not get a 3SGE.

    Stupid like me.

    With a 4A, your looking at over 6000 bucks in parts for a 200hp+ engine. $7500 inc. aftermarket ecu...... etc etc.

    Then you gotta get it machined and assembled.

    I'm in the middle of it right now.

  10. #20
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    the money gets up there quik..

    it depends on taste tho...

    there is nothing like having something worked rather then standard wether it is more powerfulll or not..

    the thrill of the build.

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