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hobieboy hobieboy is offline
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Join Date: May 2002
Location: Up North
Posts: 1,434
As many have said - GHL exhaust, K27 and stock engine will result in "overboost" - I used a Tial with 0.6 bar spring and I see 0.9 bar.
I can only imagine what a 1 bar spring will do.

From what I heard, the latest GHL had fixed the problem by enlarging the WG pipe.
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87 930 K27HFS/B&B/Twin-Plug... Megasquirted
Old 02-22-2007, 08:45 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #25 (permalink)