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Old 09-24-2020, 10:03 AM   #7
986_inquiry
2006 987
 
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Join Date: Dec 2006
Location: st. louis
Posts: 443
Garage
Quote:
Originally Posted by insite View Post
actually, they're not. you have to consider the final drive. the 6-speed FD is 3.44. the 2.5L is 3.889 and the 2.7L is 3.555. you need to multiply each geary by this number to get an EFFECTIVE gear ratio.

the truth is, the 2.5L has is geared lower than either of the others by a pretty substantial amount. the 2.7L, IMO, is the LEAST desirable. next is the 6-speed. the 2.5L 5-speed has the most useful ratios from a performance perspective.

I was wondering why the 2.5 feels faster than the 2.7 despite the 2.7 having 10% more hp and 5% more torque. Gear ratio explains it.
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2006 987 2.7 manual silver/black, PASM, OEM drilled rotors, heated seats
1998 986 2.5 manual black/tan with bad engine = SOLD
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