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RarlyL8 RarlyL8 is offline
Crotchety Old Bastard
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Join Date: Jan 2000
Location: Huntsville, AL
Posts: 13,614
Garrett turbos don't spool significantly quicker than a K27. We've tuned engines using a K27 that reached full boost by 2600rpm. The red rocket hit 1bar at 2700rpm and threshold at 1600rpm. I think the laggy reputation of the K27 comes from being compared to engines having many more modifications than just a turbo swap. Stick a K27 in that modified engine and it will compete nicely... and continue on for 100'000 miles.

The 915 can take ~350 ft/lb to the wheels IF you don't beat on it. My last one was rebuilt with WEVO gear and held up well. Let the turbo do the work, not the clutch.
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 06-01-2013, 07:41 PM
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