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Thread: Brian Crower 7M cams and ignition timing issue

  1. #161
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    Default Re: Brian Crower 7M cams and ignition timing issue

    3" turbo back exhaust, self ported head with stock valves,
    shift kitted auto, stock injectors, no AFM.

    Just noticed that the IT is showing -77 on the graph.
    Dont know what affect this would have on the final figure, if any.

    Will put it on a dyno again in around six weeks (at a different place) with different timing & minor cam adjustment.
    Last edited by BLACKCAT; December 28th, 2014 at 12:38 AM.

  2. #162
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    Kristian_Wraae's Avatar
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    Default Re: Brian Crower 7M cams and ignition timing issue

    Did you have issues getting the ignition right when advancing the exhaust cams to +4 ?

    When I'm at +4 I can't get below 12 degrees base timing.

  3. #163
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    Default Re: Brian Crower 7M cams and ignition timing issue

    I have BC 272 cams. I'm set to -3 and +1 on the cam gears. I installed, synced timing and went. No issues.

    1990 Grand National Black Hardtop MK3 | SP61 | AEM EMS | JE | Eagle | OS valves | Tial WG | HPF Intercooler | KSracing FFIM | 272 BC cams | HKS Stopper HG | Spec 3 Clutch | Fluidyne Rad | 3" Blitz Nur-Spec Exhaust | 680cc Injs | Aeromotive FPR | Tokico Struts | ST Springs | AVC-R| AEM Wideband | Sway Bars | Slotted/Drilled Rotors | Axxis MM Pads | SS Lines | Pioneer 6.5" CD/GPS/DVD | 5.25" Infinityx4 | Volk GTC 18"X9" and 18"x10" | Bomex lip | Kaminari sides | 2 Tone Leather | MC modded R154 | NSX headlights

  4. #164
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    Default Re: Brian Crower 7M cams and ignition timing issue

    I think something is wrong with my set of cams. It was from the first batch. The car has never run well since they were installed.

    Just bought a set of HKS cams.

  5. #165
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    Default Re: Brian Crower 7M cams and ignition timing issue

    Where did you find HKS cams?

  6. #166
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    Default Re: Brian Crower 7M cams and ignition timing issue

    i bought a pair of these stage 2 brian crower cams and car idled rough and had hard time getting timing and car stalled on quick stops but after adjustable cam gears set on center pin intake at 5 deg and exh at 3 deg runs and pulls great and makes power with less effort and fuel took some playing with to find the sweet spot definately worth using adj gears

  7. #167
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    Default Re: Brian Crower 7M cams and ignition timing issue

    Hi guys I have the BC 264 cams in my motor and I'm almost ready for dyno.
    Just curious. What settings are you guys running your adjustable cam gears at and what pin are they set at in the cam?
    Also what sort of figures have you reached?
    Cheers

  8. #168
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    Default Re: Brian Crower 7M cams and ignition timing issue

    Quote Originally Posted by fasttrac64 View Post
    i bought a pair of these stage 2 brian crower cams and car idled rough and had hard time getting timing and car stalled on quick stops but after adjustable cam gears set on center pin intake at 5 deg and exh at 3 deg runs and pulls great and makes power with less effort and fuel took some playing with to find the sweet spot definately worth using adj gears
    Did you advance both cams or retard them?
    84 mk2 6m-geu
    88 mk3 7m-gte

  9. #169
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    Default Re: Brian Crower 7M cams and ignition timing issue

    And what did you adjust with the fuel?
    84 mk2 6m-geu
    88 mk3 7m-gte

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