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Old 05-20-2011, 02:23 AM   #353
LionZoo
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Join Date: May 2011
Drives: 2006 Mazda RX-8
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Quote:
Originally Posted by PAImportTuner View Post
Without being too rude, with easily over 10 years in the industry, common sense tells me it cannot be no lighter than that. The latest Miata is almost 2600lbs, it's smaller than the FT and does not have the same amount of windows, seats, smaller trunk, roof, b and c pillars, more safety standards and safety concerned areas needing reinforcements because of being a 2+2. The FT86 overall has more metal and glass. Throw on the bodykit and or have the turbo model and your pushing 3000+. That's why I stress that the NA model push at least a non-overrated 205-210hp to the crank, which is kinda farfetched for a non-turbo Subaru engine.

10' Miata @ ~2600lbs
Wheelbase (in) 91.7
Track, front (in) 58.7
Track, rear (in) 58.9
Length (in) 157.3
Width (in) 67.7
Height (in) 49.0

FT86 Estimated 2900lbs NA model. No turbo, no bodkit.
Wheelbase: 101.18 inches
Length: 163.78 inches
Width: 69.29 inches
Height: 48.19 inches

11' Scion TC @ 3100lbs
Wheel base: 106.3 in.
Width: 70.7 in.
Height: 55.7 in.
Length: 174.0 in.

10' RX8 @ ~3100lbs
Wheelbase (in) 106.4
Length (in) 175.6
Width (in) 69.7
Height (in) 52.8

10' Genesis 2.0T @ ~3500lbs
Wheelbase: 111.0 in
Length: 182.3 in.
Width: 73.4 in.
Height: 54.5 in.
The Miata is a convertible and convertibles are generally heavier due to their use of bracing in non-optimal areas to try to gain back stiffness lost due to the lack of a stressed roof. Also, Mazda engineers are on record as stating that the current NC Miata is heavier because it shares an architecture with the RX-8.

The Scion tC has a heavy FWD architecture. The RX-8 has a heavier than usual body because of the giant gapping hole in the center from the suicide doors. The engineers have needed to reinforce other areas to get back the stiffness.

I believe that Toyota has too much riding on their lightweight marketing to release a pig heavy car. Also, other components of the car can be engineered to be lighter since the car doesn't have a lot of power compared to other modern sports cars. In my opinion, the car will not weigh more than 2800 pounds.

One of the best correlations with sports car weight is front brake size. The front rotors on the prototype look like they're about 11.5". The NC Miata has a 11.4" front rotor and is about 2500 pounds (in softtop guise). The S2000, which was a little over 2800, had 11.8" rotors, but was relatively underbraked for a modern sports car. The RX-8, 370Z, Genesis etc. all have rotors in the 12.6"+ range.
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