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RarlyL8 RarlyL8 is offline
Crotchety Old Bastard
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Join Date: Jan 2000
Location: Huntsville, AL
Posts: 13,521
Using a 915 my top end is about 150mph @ 7000rpm. First gear is generally useless but the rest are just right. You do change gears a lot but they are very quick and you are always in boost. The tires take a beating.

I'm getting ready to try out a Euro 915 with a higher 4th and 5th gear. Should make for a nice highway ride.

It stands to reason that your gear spacing should match your torque curve and power output. If you have an engine that puts out more than 400HP you probably don't want an 8:39 R&P in your 4spd.
RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 01-28-2007, 06:09 PM
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