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RarlyL8 RarlyL8 is offline
Crotchety Old Bastard
 
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Join Date: Jan 2000
Location: Huntsville, AL
Posts: 13,423
Garage
I'm no expert but I will share my impressions.
A 7006 was one of the many turbos that my buddy tried out a couple of years ogo when doing all of the experimenting with setups. That is a large turbo with a big hit on the top end. It did come with some Turbo S, Werks and Turbo 3.6 cars.
The HF and HFS have a lower threshold making them less of an on/off switch. They both are capable to carry 1.0 bar through redline.
All work at least as well with headers as Euro exhaust. The HF/HFS flow so much air that waste gate plumbing becomes critical to eleviate over-boost. Headers like B&B/GHL have less than optimal waste gate plumbing and many have reported overboost, some have blown engines. Better waste gate control is what Ben and I both like about the twin wastegate designs we plan to use going forward.
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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 01-06-2009, 04:09 AM
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