Going to try a Foamectomy... Hog clip/tool question - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

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Old 04-20-2016, 11:59 PM   #21
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^how much do you weigh, how long do you sit in your car, and do you still find it comfortable?

my torso is shorter than average, so a foamectomy would get me to a good height, but I have a bad back, and this is my daily that I drive many many hours in, so I don't really want to sacrifice comfort... at the same time, I wanna go fast on the track... so I need to do something.
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Old 04-21-2016, 12:20 AM   #22
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Quote:
Originally Posted by thumpetto007 View Post
^how much do you weigh, how long do you sit in your car, and do you still find it comfortable?

my torso is shorter than average, so a foamectomy would get me to a good height, but I have a bad back, and this is my daily that I drive many many hours in, so I don't really want to sacrifice comfort... at the same time, I wanna go fast on the track... so I need to do something.
I'm fat. 185-190lbs. Foamectomy improved seat comfort for me as I could tailor where the amount of lumbar as well a side bolstering. I trimmed the living **** out of the base, and a bit out of the back. Feels good, but want a new seat to bolt to floor. My knees are still up against the dash, and my 320mm wheel still interferes with heel-toe actions.

I drive the **** out of my car. for long periods of time. Like kill a whole tank in one day type of frequent driving. Comfortable to me.
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Old 04-21-2016, 01:14 AM   #23
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Thank you, this all helps.

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Old 04-21-2016, 09:52 AM   #24
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+1 to hack saw blade. I used a large, serrated bread knife, which also worked well.

The reason it is more comfortable for me is because it's form fitting. There's no pressure points - equal hold on my upper thighs, hips, ***, and lower back. It's like a cradle. I left the front of the foam untouched, effectively giving me a solid angled layback. YMMV.

Amazingly, I still have pictures.


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Old 04-21-2016, 02:34 PM   #25
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Wow, that's a really thick cushion, and there is still foam left where your butt goes?

Thanks so much for finding and posting that.
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Old 04-22-2016, 03:00 PM   #26
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The top photo is the final product that went back in the car. If I recall, the foam was very thin at the *** point - I'd guess around 1/2".

I sold the car to my buddy. He just sent me a couple pics. Here's the seat, roughly 75k miles later. I still drive it from time to time. Love that seat.




(edit - obligatory I've been trying to get him to put the stock wheel back in since the HPDE safety thread, but he keeps saying he's going to put full harnesses and seat in soon. He actually finally bought a real seat, and the car is only track duty now.)
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Going to try a Foamectomy... Hog clip/tool question-fqka8bgl.jpg   Going to try a Foamectomy... Hog clip/tool question-0xtrhkul.jpg  
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Old 04-22-2016, 08:01 PM   #27
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I did a foamectomy. Here are my observations:
1) go to goodwill and buy the longest bread knife with the smallest teeth you can find. SAW the foam off with this knife
2) just cut off the lower bulge so the bottom of the foam is one flat plane
3) don't separate the shell from the foam where your *** goes. The bolster seams are integrated into the foam, and will always be janky and loose if you separate them from the foam
4) the back insert comes free separately. Add foam or shave foam to lower the lumbar support curve down the equivalent amount that you cut out of the bottom of the seat pan
5) as everyone else mentioned, use zip ties instead of hog rings to put it back together

You're gonna get a couple inches max from doing this.
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Old 04-23-2016, 10:15 AM   #28
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Making a trip for a foamectomie-purpose knife is super overkill. There's something in the house that works just fine. There's no one size fits all for cutting the bottom bulge of foam. Cut/tailor to fit.
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Old 04-23-2016, 01:00 PM   #29
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Electric carving knife is the **** for cutting foam, btw.
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