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Thread: 8vt ignition table spark map

  1. Member
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    08-15-2012 06:16 PM #1
    I got my project running but it hasn't been perfect.
    RD 1.8L Block with well over 200k miles on it, g60 head and cam, atp manifold, t3 "super 60", 2.5" turbo-back, arp head studs, rhussjr head spacer, small IC, 403cc injectors. blah blah
    Wastegate held open while I tune for NA.
    Got my fuel roughed in pretty well.
    Spark is the issue, I cant seem to go over 3500 without sounding like I'm 2-stepping for launch.
    It runs and drives great under 3000 which is all fine and good for around town.
    I might replace the ignition coil with an MSD Blaster 2, current spark plugs are Bosch WR7DC+.
    I plan on switching to WR5DC+ when I start boosting.
    I'm going to double check that the plug are gapped correctly.
    I scrapped the old ignition map and cooked up this new one today.
    There aren't many for a turbo 8v so I cobbled together a few x-flow maps and words of advice from old threads to make this...
    Thoughts?
    Last edited by L33t A2; 08-17-2012 at 05:32 PM.
    : Tornado Red '87 GTI 8vT, Toreador Red '98 Ranger XLT
    : Rave Green '01 GTI GLS
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    '01 Catera, '90 GLI 16vT, '94 850 Turbo, '90 Golf, '89 Golf, '90 Mustang LX, '91 Jetta, '88 9000S, '86 Jetta, '91 Continental

  2. Senior Member need_a_VR6's Avatar
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    08-15-2012 10:50 PM #2
    Map is ok. Have you checked sync and if you set fixed timing it doesnt drift?
    -Paul
    1995 GTI VR6 - 12.90@106 R32 power - 12.833@106 12v power
    KPTuned - Official MegaSquirt: Sales - Repair - Installation - Tuning
    Build Thread: The Build Thread "Good Clean Fun"

  3. Member
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    08-16-2012 12:46 AM #3
    sync?

    i will set fixed timing again and recheck that it hasn't drifted
    thanks
    : Tornado Red '87 GTI 8vT, Toreador Red '98 Ranger XLT
    : Rave Green '01 GTI GLS
    :
    '01 Catera, '90 GLI 16vT, '94 850 Turbo, '90 Golf, '89 Golf, '90 Mustang LX, '91 Jetta, '88 9000S, '86 Jetta, '91 Continental

  4. Senior Member need_a_VR6's Avatar
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    08-16-2012 06:53 AM #4
    Sync: fixed timing = timing on timing light
    -Paul
    1995 GTI VR6 - 12.90@106 R32 power - 12.833@106 12v power
    KPTuned - Official MegaSquirt: Sales - Repair - Installation - Tuning
    Build Thread: The Build Thread "Good Clean Fun"

  5. 08-16-2012 09:07 PM #5
    Stupid question but this happened to me. Is your rev limiter set up 3500?

    -Alex


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    08-17-2012 12:49 AM #6
    Quote Originally Posted by need_a_VR6 View Post
    Sync: fixed timing = timing on timing light
    Ah, okay, thanks again!

    Quote Originally Posted by 20v_boost View Post
    Stupid question but this happened to me. Is your rev limiter set up 3500?
    LMAO no, but thanks. I checked this about 10 times, thinking maybe it was that easy. I have it soft-cut at 7000 and hard cut at 7200.
    : Tornado Red '87 GTI 8vT, Toreador Red '98 Ranger XLT
    : Rave Green '01 GTI GLS
    :
    '01 Catera, '90 GLI 16vT, '94 850 Turbo, '90 Golf, '89 Golf, '90 Mustang LX, '91 Jetta, '88 9000S, '86 Jetta, '91 Continental

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