Saturday, November 21, 2009

Lexus

http://newcarsgreen.blogspot.com
Like AMG powerplants, each LFA V-10 will be handbuilt by one man. In fact, there are two; both are employees of Yamaha (which also designed the V-10's heads). Each man will finish an engine every two days.

As you might expect, the six-speed transmission (a rear-mounted transaxle) is a paddle-shift auto-clutch manual, but, likely due to manufacturing dictates fixed long ago, it's a single-clutch unit -- not a contemporary dual-clutch design. No slouch at spin himself, Tanahashi says, "I wanted the more natural shifting feel of a regular manual.http://newcarsgreen.blogspot.com"
The LFA first materialized in aluminum. But when even the light alloy didn't meet Tanahashi's fastidious weight targets, he largely scrapped it and opted instead for carbon-fiber reinforced plastic (CFRP). The final LFA chassis sports a CFRP central tub with aluminum subframes front and rear; the package is wrapped in carbon-fiber bodywork. Total weight savings versus aluminum: about 220 pounds. All CFRP work is performed in-house. It doesn't hurt that Toyota has a long history in textiles, but switching from sweaters to weaving carbon fiber required lavish expenditures in tech and tools. (Look for future Lexus CFRP as Toyota monitizes its investment http://newcarsgreen.blogspot.com.)
The LFA rides on an aluminum suspension, dual-control arms up front and a multilink setup at the rear. Steering features electric power assist so as not to deplete a dollop of engine output.
Source: http://www.motortrend.com

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