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Blowoff Valve on 951
Is it true that you check your blowoff valve by seeing if it holds pressure when sucking on a line connected to the top of it? If this is true, mine is shot. If not, how do you check the operation?
Has anyone gone with one from Huntley? Can the huntley one be used with stock airbox and pipe setup? How about the stock Porsche valve for the 993 turbo? -g
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Geoff Baltz - St. Louis Region PCA Board Member/DE Chairman PCA HPDE Instructor Last edited by geoffbaltz; 03-24-2002 at 09:55 AM.. |
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03-24-2002, 09:48 AM
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Join Date: May 2001
Location: LI NY
Posts: 1,689
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Greddy makes a real cool one that sounds great(nice little whistle), its universal we just put one on the VR4 this weekend...
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82' 911 SC"Go Go Green" 87'3.2L,Turbo Brakes,Brake Bias Valve,Fiberglass Front Clip, 16" BBS, Multiple Strut Braces, Re-valved Bilstiens and a few more "Stock" additions. SOLD  04' Audi A4 Avant Quattro S-line- RS6 look alike with half the HP  http://www.eurocompulsion.net |
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03-24-2002, 12:40 PM
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Join Date: Feb 2000
Location: Kingsport, TN
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Thing has a diaphragm in it. It should hold vacuum. If you can draw air through the little nipple at the top, it is a goner. It routes the compressed turbo intake air back into the turbo inlet when you let up on the throttle.
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03-24-2002, 02:36 PM
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Yeah it's toast. I just ordered a new one (Forge Motorsports) from Stratmosphere.com for the VW/Audi 1.8T motor. It is actually designed to replace the Bosch valves like our cars. They market it for the 1.8T motor. The spring rate is adjustable and it is piston based.
$139 - more than the oem replacement but about half as much as the huntley model. I'll let you know how it works. -g
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Geoff Baltz - St. Louis Region PCA Board Member/DE Chairman PCA HPDE Instructor |
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03-24-2002, 05:03 PM
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