The Miata has lovely frame rails that go all the way from
front to back which is very unusual in a unibody car. Problem is those frame
rails are made out of tin foil. It would appear that poor Jenna has been in a
ditch or 2 because both her rails have areas where they are caved in.
The good
news is with no effort at all a screwdriver and hammer bends them back in to
place. The bad news is clearly they were never designed to hold back dumping
the clutch on 400 foot pounds of torque.
Now there is
a number of companies out there that offer a solution to this with a cap that
covers the frame rails with either manly US steel or blingly aluminum. The
problem is those solutions cost well over 100 bucks. So I took another approach
and simply added an entire new box steel frame rail right next to the existing
one. Hey if 2 heads are better than 1 on the engine it stands to reason 4 frame
rails are better than 2 for the body right?
Now when I dreamed up this little scheme it was
suppose to have a skilled Navy welder to weld them in.But since that boat
sailed I figured I would just burn holes all over the floor of the car. It’s
unbelievable how delicate welding upside down on very thin metal is. Thankfully
I ran out of wire before I could do any serious damage and headed for the bolt
bin and bolted them in.
This
will give me a good foundation to mount the transmission crossmember to and
when that is in I will fill them and the factory frame rails with foam sealant
to keep the crud out. The total investment was 10 bucks and 1 burn hole in my
coveralls. :-)
The
next bit of adventure necessitated a trip to my buddy Dales shop to play with
his pipe bender. Word from the forums says door bars help stiffen Miatas even
more then frame rails so I for sure wanted to build a set. They are a hunk of 1
1/4 tubing that go from the base of the roll bar to the front of the newly
added frame rails. Like so:
I could have left the bars straight and they would have just squished the seat a little but with the bender it clears it fine.
Cost
to build 6 bucks, 1 burn hole in the carpet and 1 burn hole in an oil bottle on
my work bench. See a pattern here? Thankfully the carpet hole will be under the
seat.
One
final photo for the day. This is a shot of my beautiful Camaro hood leaving in
a mini van.
I
felt quite uneasy about as we were taking it off until the buyer asked me why I
was parting out the car. The astonished look of bewilderment on his face was
absolutely priceless. It took him a full minute to even grasp the concept and
the poor guy never did come to terms with scrapping a perfectly good Camaro to
build a Miata. It was an unforgettable moment and never in all this process
have I been so validated that I am absolutely doing the right thing!