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What rwhp with this combo
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Thread: What rwhp with this combo

  1. #1
    Senior SCH Member
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    Question What rwhp with this combo

    306, Forged rods,
    Forged Crank,
    Forged Pistons,
    9:0 compression.
    Performer Rpm's,
    1.6 RR's
    E-cam,
    80mm Pro-M,
    75mm T-body,
    42 lb injectors,
    GT-40 intake
    Novi 2000 12-14 lbs of boost

    also Tremec 3550

  2. #2
    SCH Moderator "SN Guru" speedytang's Avatar
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    450+ rwhp if you add a tuning device to control timing.

  3. #3
    Senior SCH Member
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    I plan on having a SCT tune. Anyone else want to guess?

  4. #4
    SCH Moderator regattacoupe's Avatar
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    470rwhp and the same for the TQ.
    89 Coupe with parts stacked inside of it and about 30#'s of dust on it with no end in sight. :weird:





    Although I am collecting parts for a 12.5:1 393 :D

  5. #5
    Senior SCH Member TheHawk05's Avatar
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    If you run 14 psi and the tune is good...500+

  6. #6
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    Those numbers sound great.

  7. #7
    Senior SCH Member frdfandc's Avatar
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    You're going to run out of injector before you come close to your peak numbers..

  8. #8
    SCH Moderator "SN Guru" speedytang's Avatar
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    With a E-Cam and 9-1 compression you wont run out of Injector anytime soon. I run 42lb Injectors and make 485 rwhp and still have room left with a Tuning Device. 42lb injectors will support 550 rwhp and you will run into a fuel rail and fuel pump problem before a injector issue.

  9. #9
    Senior SCH Member frdfandc's Avatar
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    From a mathmatical standpoint, those injectors are good for 560 flywheel hp at 100% duty cycle. Usually injectors run at approx 80-90% duty cycle which would be approx 510-540 hp at the flywheel.

    42*8=336 lbs of fuel (100% duty cycle)
    336/.6 BSCF = 560 hp at the flywheel
    560 * .85 = 476 RWHP.


    So you would be looking at approx 430- 460 rwhp with the 42 lb. injectors.

  10. #10
    Senior SCH Member
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    I think you will be around 450 to 475 rwhp.
    Chris
    9.05@152 with a T-Trim on BFG Drag Radials
    NMCA SR6381

  11. #11
    SCH Member
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    if you dont make 500, go find a different tuner

  12. #12
    SCH Moderator regattacoupe's Avatar
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    Quote Originally Posted by flyin_hawaiin
    if you dont make 500, go find a different tuner
    I agree...and i think the injectors will be on the edge but they will do just fine.
    89 Coupe with parts stacked inside of it and about 30#'s of dust on it with no end in sight. :weird:





    Although I am collecting parts for a 12.5:1 393 :D

  13. #13
    Senior SCH Member
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    as far as the MAF I already have a Pro-M 75mm, Should I upgrade to a 80-85mm Pro-M meter? of will the 75mm be fine?

  14. #14
    Junior SCH Member
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    I got me one of them PMS on my car, and I am in the illinois area, who can tune it for me?

  15. #15
    Senior SCH Member
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    Contact Bob Kurgan at www.kurganmotorsports.com. He had my car up and running on the PMS all dialed in about an hour. I went out to the next race and went 3 tenths and 5 mph faster then I ever did.
    Chris
    9.05@152 with a T-Trim on BFG Drag Radials
    NMCA SR6381

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