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RarlyL8 RarlyL8 is offline
Crotchety Old Bastard
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Join Date: Jan 2000
Location: Huntsville, AL
Posts: 14,082
No you do not need new heat exchangers.
Here is a picture of my '78 Euro system with heat tubes attached:

Your Carrera engine will be missing the heater tin at the fan shroud that matches up to these tubes. A short length of aluminum hose attaches the heater shroud ducts to the heat exchanger tubing. You can substitute SCAT tubing as we did in this header installation. You can see the factory length ducting going through the engine tin:

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 05-08-2013, 06:28 PM
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