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      11-28-2008, 01:48 AM   #93
oneginee
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Drives: GT3 RS
Join Date: Oct 2007
Location: SE

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To whomever was saying all Ferraris ever built have NA engines. Not true. The 87 F40 and 89 F40 Le Mans are twin turbo V8s and they are faster on 0-60 than the current F430

2009 F430 Scuderia Spider 16M NA engine FI 4.3l 510bhp@8500rpm 346lbs.ft@5250rpm redline 8640rpm 0-60mph 3.7sec
2007 F430 Scuderia NA engine ESI 4.3l 510 bhp@8500 rpm 346 ft.lbs@5250rpm redline 8640rpm 0-60mph 3.5sec
1989 F40 Le Mans TT V8 2.9l 760 bhp@7500 rpm 0-60mph 3.1sec
1987 F40 TT V8 2.9l 478bhp@7000rpm 425ft.lbs@4500rpm redline 7750rpm 0-60mph 3.8sec
2006 F430 GT V8 NA FI 4.0l 445 bhp@6750rpm 495 ft.lbs@5200rpm 0-60mph 3.2sec

But yes there is a reason NA are the prefered choice for all recent Ferrari and that is drivability.

Here are other reasons of dislike:

- Sounds like "an angry aspirator"
- Reliability year after year
- No wideband torque
- Reduces usable power band of the engine
-The sudden surge of power can overwhelm the tires and result in loss of grip, which could lead to understeer/oversteer
- if throttle is applied in a turn, power may unexpectedly increase when the turbo spools up, which can cause excessive wheelspin.
-Engine complexity, more chances for failures

To be fair: advantages of Turbocharging
-more bhp and torque at smaller volumes
-better thermal efficiency. Also higher combustion temperature reduces NOxide compound for cleaner emission
-Fuel economy. Here is where a lot of people go wrong. Lower only when cruising because smaller engine volume but when driving hard consumption is about the same as NA engine of same bhp. Therefore a weak argument for an M car which should be driven hard.