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Well I squeezed the supra g-box into the FMS
frame today.
Here is a list of the modifications that was
required to have a “nice” amount of space around the gear box, and some
decisions I made when designing. I will reference the FMS plans
L7R Chassis Plans Bottom Frame Drw#
A/1 in the passage and (Book reverence in brackets, see page 42
of the book)
Situation
1 I didn’t wish to compromise the foot well space in the drivers side.
2 The Supra has a large bulge in the middle of the box.
3 The passenger side of the Box is wider than the drivers.
4 Normally only the driver will be in the car, or my wife, approx 40kg
lighter than said driver.
5 I wanted to retain 25mm RHS for the triangulation of the tunnel.
Solution.
1 Both forward tunnel bars tt6 (ref. I and M in the book) required
modification.
2 Drivers side tt6 (m), The bar was redesigned. First from a/3 (c) is
travelled back parallel to the centre line of the chassis for 215mm. Then
angled to the original position at the intersection of a/1 (B2) and tt/8
(b). Thus the space given for the drivers peddles is not reduced and a
bulge is formed.
3 Passengers side tt6. Bar was moved 25 mm further into the passengers foot
well at longitudinal bar a/3 (c). So instead of the measurement being
127mm it is now 152mm. tt6 (I) moves back at an angle of 86 deg for 215mm.
Then directly to the plan position, i.e. intersection a/1 (B2) and tt/8
(a). Thus the tunnel has retained its original width where seat is tt8 (a &
b).
This gives approx 20-25 mm clearance for the main box and 10 mm for the bits
that stick out and may or may not foul the triangulation.
Yes this also means when the box is in position, it is actually 11.5 mm to
the passengers side. This will aid in balancing the car as I am a heavy
bugger.
J |
