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Thread: First time checking timing on dual sync question.

  1. #1

    Default First time checking timing on dual sync question.

    I have a Ford with the Holley HP and dual sync distributor. I'm trying to get all my pre checks in order and one of the last things I need is to buy a timing light to test or check my newly installed distributor and before the first start and check it after to see if it's following the commend on the ECU.

    Can I ask how important this is? I have never checked timing before and I've been watching YouTube uploads, but I'm still not sure what I'm doing. Like is this a step I have to 100% do with the Holley HP and dual sync to get it correct?

    I'm looking for mid priced timing light options from Jegs now and even mid range Innova ones on eBay or Amazon. Sadly, I hope I can learn how to use this properly and will likely be a one time use expensive item or maybe three time use after checking timing at higher RPM while I hope the car starts the first time. Anyone know an affordable option to get additional leads to reach my battery in the trunk? The battery powered timing lights aren't reviewed that well? Thanks.

  2. #2
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    Quote Originally Posted by fordhp View Post
    Can I ask how important this is? I have never checked timing before and I've been watching YouTube uploads, but I'm still not sure what I'm doing. Like is this a step I have to 100% do with the Holley HP and dual sync to get it correct?
    It is imperative that the ignition timing is synchronized with the ECU!
    http://forums.holley.com/showthread....ing-Holley-EFI (Ignition Timing Synchronization)

    I'm looking for mid priced timing light options from Jegs now and even mid range Innova ones on eBay or Amazon. Sadly, I hope I can learn how to use this properly and will likely be a one time use expensive item or maybe three time use after checking timing at higher RPM while I hope the car starts the first time.
    I've owned two expensive timing lights that were supposed to be high quality. Both failed.
    I now use a digital Actron CP7529: https://actron.com/content/digital-timing-light
    Timing Light Instruction Manual: https://actron.com/sites/default/fil...lish_16313.pdf
    It's bright, works great, and it's available at most local auto parts stores.
    (Ensure the dial back-to-zero function is zeroed for fully degreed dampers.)
    http://forums.holley.com/showthread....9690#post59690 (Additional Information)
    I've successfully used this timing light on several Holley ECU controlled applications.

    Anyone know an affordable option to get additional leads to reach my battery in the trunk? The battery powered timing lights aren't reviewed that well? Thanks.
    I'm not aware of a timing light with a power cord that long, but it can connect to +12V in the engine compartment.
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS TW 11R 205 heads, 11.8:1 comp, TFS R-Series intake, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 160A 3G alternator, Optima Red battery, A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/off-road X-pipe/shorty headers, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/2800 RPM converter, M4602G aluminum driveshaft, FRPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 tires.

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