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PRL Motorsports Bolt-On Big Turbo Upgrade Kit

Discussion in 'PRL Motorsports' started by PRL Motorsports, Feb 28, 2018.




  1. farqt Member

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    the gen 1 gtx2860r disco potato just has a much higher choke point than the gt2860 (for the most part, it depends on the housing, chra bearing build, etc, but if you look at the garrett compressor maps that is what you'll see). the gen 2 gtx2860r is where you will big gains over a vanilla disco at the same same exhaust pressure.

    i would be very surprised if they aren't testing on larger injectors and simulating factory fueling for package testing experiments and running ethanol blends on the larger injectors for peak power measurements. this is the same approach i am taking with my project car (ie, not the honda) and that most of the turbo builders i know use in testing (with a spare block for every car they're testing on)
     
  2. AREA

    AREA Honda head 4 life!

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    Didn't Eman just make 465 dynapak with this turbo kit and meth injection on Motec?
     
  3. 360glitch

    360glitch Moderator Moderator

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    Yep!
     
  4. AREA

    AREA Honda head 4 life!

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    Waiting to see what turbo Eman chose!
     
  5. davemarco Senior Member

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    GTX2867 Gen 2. Looking at the power curve that he posted, it honestly resembles a turbo 8th gen, but without the 8K RPM red line. Very low power on the low end (<100 hp by 3000 RPM), climbing to decent power in the mid-range, and crazy power on the high end. He also raised his redline to around 7K RPM.

    That said, I have to wonder how fun it would be to drive in non-racing conditions, considering that the low end power has been completely gutted and the stock engine can't rev to the moon anymore.
     
  6. 360glitch

    360glitch Moderator Moderator

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    I think that turbo is going to be more well suited for track use. I wonder which exhaust housing he is using. Probably the larger one?
     
  7. farqt Member

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    i think the 2867 is too big for this motor. if it had a head and internals that could spin up to 8k without destroying itself, you could take advantage of the upper end of the compressor map, but without the exhaust pressure to take advantage of the upper end of the curve, you're effectively tossing in a 2860 at higher cost and higher lag.

    otoh if you have a bored out built motor and ported head, you could push enough power with the 2867 to retain drivability and twist the chassis in half at high rpm...
     
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  8. kshawn

    kshawn Senior Member

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    Well the built motors are right on the horizon. So we'll find out soon enough
     
  9. kshawn

    kshawn Senior Member

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    @PRL Motorsports I think I saw somewhere you guys are switching to motec for a ECU. Are you running into limitations with the stock ECU?
     
  10. farqt Member

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    Torque tables and limited fueling probably. The honda ecu interpolates everything.

    Also VE changes significantly with any changes to the internals, and standalones seem to be the way to go when VE changes on most modern cars that do extensive sensor reconstruction using baked in curves
     
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