Switched my 89 Firebird to OBDII, then dyno tuned it. Graphs inside!

Discussion in 'OT Driven' started by Justintiime, Oct 9, 2007.

  1. Justintiime

    Justintiime OT Supporter

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    Hey guys. Back in early April I switched my car over to OBDII using mostly GM parts from a late Express Van, and a whole new custom engine harness. The difference is night and day with the driveability! Also had it tuned while I was in Ohio for the swap. Lets see if I can figure out how to post them up. These numbers were taken with the stock air intake on. With just a K&N Filter on the throttle body, I picked up an additional 14 rwhp and tq!
    [​IMG]
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  2. Justintiime

    Justintiime OT Supporter

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    the tune could use a little smoothing over to smooth out the jaggies in the graph, but I'm afraid to, because the car runs so much better now. I wish I could think of a comparison where everyone would know what I mean lol
     
  3. WhiteSSP

    WhiteSSP OT Supporter

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    Stock motor? Thats some nice power if so.
     
  4. deusexaethera

    deusexaethera OT Supporter

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    Wow. That's a hell of a wiring upgrade.

    It would be nice to get my car dyno-tuned someday. Gotta sink some more money into it first, though.
     
  5. Justintiime

    Justintiime OT Supporter

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    its a stock block, with some polished X Rods, trw forged pistons, an SLP cam, and some cheap older Trick Flow twisted wedge heads. Topped off with a TPIS Miniram. Nothing fancy :) 352 rwhp is fun on the street :)
     
  6. Jake!

    Jake! Guest

  7. Justintiime

    Justintiime OT Supporter

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    also, the highest HP motor in the 3rdgen f bodies was only about 240 horsepower. My FJ Cruiser has that much now LOL
     
  8. deusexaethera

    deusexaethera OT Supporter

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    It's amazing what you can get out of an engine when you remove the margin for error.

    (not saying it's bad to do that)
     
  9. dr.zed

    dr.zed DR.ZED OT Supporter

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    The fuck.

    That mini-ram and heads are working awesome! A HP peak for any SB that isn't an LSx with 23 degree heads making HP to 6000 RPM is awesome.

    Great numbers!
     
  10. Justintiime

    Justintiime OT Supporter

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    Its definitely fun to drive on the street :big grin: Its even better when you get an unsuspecting LS1 f body or vette to race you and you keep up/beat them in a lowly third gen firebird lol
     
  11. 91RS

    91RS If this flag offends you... you need a history les

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    Damn that's some great power from a TPI! Mine will be converted to OBD II when I do the LS1 swap. :)
     
  12. I was like "WTF!?" until I saw the part where you said you have a miniram. Nice job!
     

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