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Old 09-10-2009, 06:43 PM   #1
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Disaster Avoided!!! 30HP Power Loss FOUND!

So today I dedcided to do a compression test today.

140 across the board. Sweet!


Put everything back together started it up, looked at the motor......
Why is the number 3 spark boot jumping up and down?!?!?!?!

Combustion gasses where escaping threw number 3 spark plug which I should have noticed was broken when removing it for the compression check! Anyway you could definatly here it to!

Went and got new SPC-463's Installed. Went to Dyno.

I'm lucky to have access to a dyno daily. Well I think this plug had been leaking ever since FF09. My last dyno was 222WHP @13PSI.

My new dyno TODAY was 254WHP @13PSI

THIS IS THE SAME DYNO USED BOTH TIMES!




........Tom and I are working on 22PSI so new dyno soon.


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Old 09-10-2009, 06:48 PM   #2
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awesome thats crazy.

and look at all the power you got buy just screwing in a spark plug ahaha
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Old 09-10-2009, 06:49 PM   #3
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It was dangerously close to completely breaking and shooting through my hood.
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Old 09-10-2009, 06:57 PM   #4
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if it did shoot through the hood you would've had no choice but to leave it, that wouldve been some real character right there boy
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Old 09-10-2009, 07:42 PM   #5
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Wait.. was the threads stripped? Did you repair the threads? Or am i way off and you just didnt screw in the plug?
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foci's came without rear brakes? i guess mine is special with its drums
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Old 09-10-2009, 08:09 PM   #6
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I was wondering why i blew by you so fast hahaahh but good find
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Old 09-10-2009, 08:16 PM   #7
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Wait.. was the threads stripped? Did you repair the threads? Or am i way off and you just didnt screw in the plug?
Way off.

The electrode separated from the threads and was allowing blow-by into the engine bay.

So even though the car ran fine, it truly was only receiving power from 3 cylinders.
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Old 09-10-2009, 08:25 PM   #8
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damn its a good thing you found it
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Old 09-10-2009, 08:56 PM   #9
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damn its a good thing you found it
X2

That could have been bad.
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Old 09-10-2009, 08:59 PM   #10
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hows the extra 30 feel?
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