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After looking around for car seats, I decided to make my own. I have experience sewing and I felt I was capable of making them. I own the Haynes "Build you own sports car" and it gives a template of a seat, which I used.


I made the seats out of 16gauge steel. I cut it using a jig saw and I made all the bends at home using a vise, clamps and scrap steel. They were primmed and painted black. (This picture is after the first coat of black)

I bought surgical tubing and cut a slit along the length of it. I then glued it to the edges of the seat to protect people from the sharp metal.


I cut plywood to fit in the seat.


I then cut up foam and glued it to the plywood


I bought black vinyl and glued it to 1/8" foam. I cut all the strips to size and started sewing.


This is a picture at the same stage, only right side up.


After cutting out holes for the harness, I had to sew these pieces in by hand. (The material which is in the hole for the harness) I couldn't use the sewing machine because the material was too thick at this point. It took me ~45mins to do each hole.


The vinyl was stretched over the foam and stapled to the plywood on the back. (Sorry, no picture)
The end product looks like this:


I'm pretty proud of it. I have complete two in total, both of which look alike.

Costs:
Steel $60.84
Foam/ vinyl $65.21
Tubing/ spray adhesive $41.15
Paint $10.81
Total $178.01

So, thats ~$90 a seat and about 20hours of labor.

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"The decision to build a car is not one reached through a rational mindset. It is a decision that is made because we have to do it! It makes no sense, but neither does love, children and taxes" -Sam Buchanan

My Build Log: http://www.locostusa.com/forums/viewtopic.php?f=35&t=3054

Wow, that looks pretty slick!

I can't sew to save my life but maybe I can talk the wife into it....

How much do they weigh in the end?

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A man must keep a little back shop where he can be himself without reserve. In solitude alone can he know true freedom.
-Michel de Montaigne

Scratch built book frame with an 83 Celica donor 22RE. SHE'S A ROLLER!!!

Looks very professional. How is the weight?

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He is a wise man who does not grieve for the things which he has not, but rejoices for those which he has.

What's it weigh? That makes me appreciate just how much work it is to do! I'm pretty sure if I tried it the covering would come out all lumpy, and I'd end up buying a seat anyway...

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Midlana book: Build this mid-engine Locost!, http://www.midlana.com/
Kimini book: Designing mid-engine cars using FWD drivetrains, http://www.kimini.com/book_info/

Well now he HAS to answer how much it weighs... us all asking within moments of each other.

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Midlana book: Build this mid-engine Locost!, http://www.midlana.com/
Kimini book: Designing mid-engine cars using FWD drivetrains, http://www.kimini.com/book_info/

Excellent

Shows what can be done at home by someone willing to take on the project.
Quite fitting for a Locost car, and MUCH better than the suggested seats in "The Book" IMHO. Even if that is what the original had. The original also had about 50 hp.... (well, not much anyway).

Now if you had drilled about 1,000 3/8" holes in them to make them lighter and more trick looking... you could have added another 3 hours to the project. I laugh because I have done it. Not on seats though. Yet.

Man, you guys all think alike. I'm not too worried about weight in my car, because I'm using a 5.0L engine.

The passenger seat weighs 32.5lbs. (Steel portion weighs 22.5lbs)
The drivers seat weighs 34.5lbs. (Steel portion weighs 23.5lbs)

I forgot to mention that I made the passenger seat 1" narrower than the drivers. (My engine is shifted to the passenger side by 1" to give me more room) That is why the driver's weighs more.

I joke that any future Girlfriend has to be able to fit in the passenger seat, or else I wont go out with her. Its kinda tight in that seat

_________________
"The decision to build a car is not one reached through a rational mindset. It is a decision that is made because we have to do it! It makes no sense, but neither does love, children and taxes" -Sam Buchanan

My Build Log: http://www.locostusa.com/forums/viewtopic.php?f=35&t=3054

I decided to take a picture of the two seats together for you guys.


If I had enough ambition, I might consider drilling a million holes, but I'm not too interested in doing that.

_________________
"The decision to build a car is not one reached through a rational mindset. It is a decision that is made because we have to do it! It makes no sense, but neither does love, children and taxes" -Sam Buchanan

My Build Log: http://www.locostusa.com/forums/viewtopic.php?f=35&t=3054

That's it - I'm doing it. But mine will be aluminum.

Then I'll probably drill the holes.....

_________________
A man must keep a little back shop where he can be himself without reserve. In solitude alone can he know true freedom.
-Michel de Montaigne

Scratch built book frame with an 83 Celica donor 22RE. SHE'S A ROLLER!!!

Woah those are slick. Nice work.

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-Andrew
Build Log
Youtube

I like the aluminum idea, and maybe 1/8 inch hardboard instead of the the ply. The possibilities are many.

Nice work!

By the way, the seats in Champion's book are basically what were in the original Lotus. So maybe they're not so inappropriate after all

One suggestion - you can be a little more artistic with the foam carving (or maybe you didn't take that picture). I spent quite a bit of time with mine reshaping the foam, and it worked out really well for comfort.

Those seats turned out great. I wish I read this 9 months ago!

Rod

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Driving a +442E with 450 Hp Ford 347 v8, T5, 8 stack EFI w/EDIS8 & MegaSquirt ITB Mode.
12,000+ enthusiastic miles as of 1/1/11
http://www.youtube.com/watch?v=jqvYJlYc4GU
http://s124.photobucket.com/albums/p3/beergodrod/
Now building a 1953 Chevy 1 ton panel with Frito Lay truck parts and a Cummins 4BTA
and a 1963 Nova SS

Awesome, Max!

-dave

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...nowadays people are so intellectually lazy and lethargic that they can't build ANYTHING with their hands. They'll spend hours watching whiny people marooned on an island, but won't spend a second adding anything to the world. -weconway
Visit my [Locost 7 build log]

From my quick research, it seems as though aluminum seats are cheaper to buy than build. If you compare the price of the material to build a seat vs buying a pre-made Kirkey (or similar) it's pretty much the same. Obviously, you can build your own cover the locost way, but the 1/8" aluminum is just not cheap like steel. For example, the Kirkey Economy drag seats (similar shape to what maxlessca made) is 91 bucks from Jegs! Not to mention the fact that u may need different shielding gas/wire/rod/etc. to weld aluminum if you aren't yet set-up to weld the soft stuff.

So, in my opinion, building your own steel seat makes sen$e, but maybe not aluminum...

*EDIT* I forgot to say "Nice job" on those seats! Didn't mean to flame your thread, just offering an alternative to aluminum home-made seats. Nice work!

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-Emile
Scratch building an IRS, RX-7 based book chassis @ myBuild Log

*Make way for the luckEseven!