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Old 03-10-2015, 02:20 AM   #1
HandOverFist
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Default Re: Ford vs Chevy Build-up

Ok guys...when you stop laughing can someone remind me what the heck this hole was used for?



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Old 03-10-2015, 06:18 AM   #2
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Default Re: Ford vs Chevy Build-up

On my 88 Mustang it isn't for anything. Just a threaded hole that goes nowhere.
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Old 03-10-2015, 07:18 AM   #3
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Default Re: Ford vs Chevy Build-up

Thanks Mitch...upon further inspection it is indeed a blind hole, so I can put it out of mind now.
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Old 03-10-2015, 07:29 AM   #4
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Default Re: Ford vs Chevy Build-up

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Originally Posted by HandOverFist View Post
Thanks Mitch...upon further inspection it is indeed a blind hole, so I can put it out of mind now.
Your welcome sir. Cool build.
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Old 03-10-2015, 11:56 AM   #5
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Default Re: Ford vs Chevy Build-up

Looks like I have a choice of 2.82 or 2.90 gearset in a C4. What would be preferred in this car at nearly 3400 pounds w/driver?
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Old 03-10-2015, 01:07 PM   #6
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Default Re: Ford vs Chevy Build-up

I think the blind hole is for a knock sensor, not sure what year it's used. Mine is a 95 and doesn't have it. At one time I thought the sensor could be used to watch detonation closely to control ignition advance, but I bailed on that.
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Old 03-10-2015, 01:55 PM   #7
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Default Re: Ford vs Chevy Build-up

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Looks like I have a choice of 2.82 or 2.90 gearset in a C4. What would be preferred in this car at nearly 3400 pounds w/driver?
2.92 low and 5.14 rear gear with 29.5" tires..................it's magic.
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Old 03-10-2015, 01:59 PM   #8
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Default Re: Ford vs Chevy Build-up

I've got 4.56 with 26" tires.
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Old 03-15-2015, 04:07 PM   #9
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Default Re: Ford vs Chevy Build-up

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Ok guys...when you stop laughing can someone remind me what the heck this hole was used for?



May be unrelated, but I seem to remember reading at one time Ford used, or was planning to use a sensor running off either the flywheel or rear crank flange to read a signal from. Possibly that is what that hole was for, acsess for a sensor?
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Old 03-15-2015, 08:24 PM   #10
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Default Re: Ford vs Chevy Build-up

I need to purchase a flexplate and have noticed two different configurations for a C4...one with a single step and the other with a dual step. What/why the difference and which do I need?
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