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-   Do It Yourself, Boating on a Budget (https://www.offshoreonly.com/forums/do-yourself-boating-budget-249/)
-   -   thunderbolt iv ignition modual (https://www.offshoreonly.com/forums/do-yourself-boating-budget/281658-thunderbolt-iv-ignition-modual.html)

Griff 07-30-2012 11:54 AM
Originally Posted by michaelb63 (Post 3741519)
base timming set at 19* so all in would be at about 29* should be right in the ballpark, but dosent seem like the timming is advanceing after 2500 rps like it should
With the V6 module on a V8 engine, all the advance(10*) is in by about 2500rpms.

FIXX 07-30-2012 08:02 PM
ok could be a number of things,,did you try a colder plug?? did you tighten up the sparkplug gap? boost could be blowing out the spark..try a .028 gap and see what that does..

michaelb63 07-30-2012 08:06 PM
Originally Posted by Griff (Post 3741869)
With the V6 module on a V8 engine, all the advance(10*) is in by about 2500rpms.
think i found the problem pulled conection to modular off pulled rubber boot off ,the ground wire connector was pushed all the way off to one side.no way it was makeing a solid connection , straightend out the prongs pluged it back up fired it up itll jump up to 6000 rpms now .will know if thats it when i get it back out on the river. thanks for the input guys

Griff 07-31-2012 01:53 AM
Make sure you're running at least 30* timing advance. Not running enough advance will cause high exhaust gas temps and burns valves.


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