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| The
New Factory Five Racing Mark 3 Roadster! |
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3. Better Molded Parts,
Processes and Tools: |
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| New Mk III kits (left)
and first generation MkIII's (white) next to grey gel coated MkII's. |
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| We have done a good job
over the years at wringing the very most out of classical “wet lay-up”
fiberglass molding. Almost two years ago we eliminated “seams” on our
fiberglass bodies and built some really nice molds
(although we did have a recent snafu on body
parting lines). The MkIII design team looked at molded parts from
a refinement standpoint. While they were at it they added some important
structural upgrades as well. Here are the molding changes… |
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Rear wheel fenders have been
flared ¾” per side to help allow the use of bigger tires (see frame
changes). With the new flared body customers can use monster
295/15 or 315/17 tires! Dave Smith has 295/15’s on his 427FE
powered-pin drive wheel roadster and with the older MkII body the
tires are right at the body and suspension travel is limited.
With the new wider MkIII bodies, there is more clearance that
allows more suspension travel.
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The MkIII rear fender flares are more delicate
than the previous MkII and 1.5” wider over-all. The front is
unchanged. |
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The rear trunk inner lip was
changed in shape to allow a cleaner look and better weather
sealing. The combination of a tighter rear seal, robot trimmed
panels and new hood liners make the FFR MkIII panels worthy of the
body shell (Photo below shows new trunk inner flange with gasket and
new battery box).
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A new hood and hood liner was
designed. The new hood has a re-shaped scoop and the liner adds a
cleaner finished look to the engine bay. The hood hinge was
re-designed to accommodate this new hood construction, with the
benefit of not needing rivets thru the hood to mount. The hood
hinge no longer needs bonding to the hood and is lighter, cleaner
looking, stronger, and more adjustable.
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We built a new mold plug and seven
(!) new Mark 3 molds. These molds have even tighter parting lines
and are built to move less and last longer.
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The composite doors, hood, and
body shells are all trimmed on our new $230,000 automated Fanuc
Robot from RPT (see
“What’s New” Robot
Wars). This ensures every panel fits and fits right.
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New Gel Coat type and color. We
selected a new gel coat material that makes
bodywork easier for our customers. The black color also aids
in the hand-layup process, making it easier to avoid air bubbles
and small blemishes (early MkIII’s were white and MkII’s are
grey).
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Optional carbon hybrid body is
back. The original carbon fiber bodies that we sold to Mk1 and
Mk2 customers were difficult to make and even more difficult to
prep and paint. We wanted to develop a laminate schedule that
would give all the weight savings of the carbon bodies without the
carbon print-thru problems of the first generation skins. The
result is called the “Riha” body since it was FFR engineer Dave
Riha whose car was the prototype of this carbon composite laminate
schedule
(featured in Car & Driver
magazine 05/04 and pictured
below at right). The body is a 1/8th” laminate
that weighs 80 lbs (vs. approximately 110 lbs for the fiberglass
body shell). The optional body costs $3800 and comes with carbon
lined doors, hood, trunk and complete carbon composite body
shell. This is still a limited production part, so please call
and ask for an engineer if you have any questions or want to
order.
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Although not officially part of the
Mark 3 project, the FFR engineering team has begun a process of
changing our molded parts over from hand-laid to a new process of
pre-preg. Pre-preg stands for pre-impregnated cloth, a relatively
new process used in only very expensive laminates. We have worked
extensively with the guys from the composites team at Dan Gurneys
All-American Racers to begin changing our molding department over to
all pre-preg materials. Hopefully this process should be completed
by years end, w/parts changing over to pre-preg process
individually. |
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The total
investment in tooling, materials, molds and processes for the MkIII effort
was more than $300,000. This number should exceed a half a million dollars
before the final pre-preg process is on-line and working. We think we’ve
built one of the best composite molding departments in the country, and
certainly in the replica/custom industry. |
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