How much clearence around ex cutouts - FFCars.com : Factory Five Racing Discussion Forum

 
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post #1 of 10 (permalink) Old 02-17-2017, 02:42 PM Thread Starter
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How much clearence around ex cutouts

I'm doing the unthinkable today... grinding out my cutouts to fit my headers.... I'm about to pee in my pants grinding on my body...
SO, is 1/2 in all the way around good enough from blistering the paint?
I have been reading all the post about the exhaust cutouts don't line up... and they don't . On my FE... I had to jack up the pass side right much to get even close to the same on each side... then I had to grind the top of the cutout about 1 inch... a very little for and aft....


Thanks,
AL Adkins
Stoneville NC.

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post #2 of 10 (permalink) Old 02-17-2017, 02:51 PM Thread Starter
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This is the tool I am using. Is this enough clearance?

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post #3 of 10 (permalink) Old 02-17-2017, 03:07 PM
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that is plenty Al

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post #4 of 10 (permalink) Old 02-17-2017, 03:57 PM
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Mine are much tighter than that and no issues with over 10k miles.
That tool looks pretty aggressive. I used a small sanding drum and it cut pretty fast.
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post #5 of 10 (permalink) Old 02-17-2017, 04:33 PM
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Yes, that is an agressive tool Al. I recommend a 1 1/2" inch sanding drum in your drill running at low speed. Tape around your openings and draw your line then sneak up on it. I've done painted bodies a number of times...you'll be fine.

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post #6 of 10 (permalink) Old 02-17-2017, 05:02 PM
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lol
I just reread the post
sanding roll is best as stated.
but you have more than enough clearance now when using poly mounts.

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post #7 of 10 (permalink) Old 02-18-2017, 12:06 AM Thread Starter
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The carbide tool cuts very fine and just makes dust. Very easy to control. Anyway. These suckers actually lined up and came out good I think. No druping and parallel with the body.
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post #8 of 10 (permalink) Old 02-18-2017, 04:02 AM
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I printed to template from the manual, then photocopied it to 110% original size because I got tired of trying to play magic voodoo fitment. Traced it on the body, cut and I don't think it is noticeable at all. I just wanted the 2 sides symmetrical and clean. I also bought 1 3/8" wooden dowels to stick in the header pipes (if not using jpipes) to keep a good of location. I do wish I had the patience to get that exit tolerance ridiculously tight ... but I just want to drive.
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post #9 of 10 (permalink) Old 02-18-2017, 12:45 PM
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Quote:
Originally Posted by raceral View Post
I'm doing the unthinkable today... grinding out my cutouts to fit my headers.... I'm about to pee in my pants grinding on my body...
SO, is 1/2 in all the way around good enough from blistering the paint?
I have been reading all the post about the exhaust cutouts don't line up... and they don't . On my FE... I had to jack up the pass side right much to get even close to the same on each side... then I had to grind the top of the cutout about 1 inch... a very little for and aft....
My old car, now owned by Mark, had less than a 1/4" clearance. In over 5 yrs and 30,000+ miles, the paint didn't even change colors, much less blister.
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post #10 of 10 (permalink) Old 02-18-2017, 05:22 PM
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Al. Just measured mine.1/2" here.No discolored on 12 years old paint job.And looks like I have the same side-pipes

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