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Make up a fitting to accept the threaded switch and a hose barb or something similar, connect to the regulated side of your air compressor, slowly dial up the pressure and check continuity from the switch to the fitting.
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Join Date: Apr 2007
Location: wisconsin
Posts: 2,553
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That's a good idea. Are there any quality aftermarket over boost switches that are adjustable for boost level? Most of our switches are going on 30 years old...
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Join Date: Mar 2005
Location: Phoenix, AZ
Posts: 2,855
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Hobbs makes adjustable pressure switches, but they are 1/8NPT not M10x1.0mm -- similar enough to thread in, different enough to damage threads of the housing.
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Chris Carroll TurboKraft, Inc. Tel. 480.969.0911 email: info@turbokraft.com http://www.facebook.com/TurboKraft - http://www.instagram.com/TurboKraft |
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I did a search a while back and found a switch that would thread in, wasn't adjustable, but was available in different pressures. I don't have the info handy but I found them with about 20 minutes of the google.
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Join Date: Oct 2013
Location: Seattle, WA
Posts: 1,083
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I am hooking up my HKS unit and snapped this picture as it shows another reason why I prefer a high quality unit. Simply, the mode of failure.
![]() The HKS unit uses a separate boost sensor, if a overboost is detected it will warn and/or drop the boost down to separate pre-set. I believe also that the higher quality solenoids fail 'open' as a matter of principle.
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- 86 Porsche 930 - Mr.Hyde - 86 BMW 635CSi - Dr.Jeykell - 2006 Infiniti M45 Sport https://medium.com/@crashingdoor Last edited by 16Volt; 03-01-2017 at 08:43 AM.. |
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Join Date: Mar 2005
Location: Phoenix, AZ
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Quote:
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Chris Carroll TurboKraft, Inc. Tel. 480.969.0911 email: info@turbokraft.com http://www.facebook.com/TurboKraft - http://www.instagram.com/TurboKraft |
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Join Date: May 2005
Location: Loxahatchee, florida
Posts: 2,894
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Biggest risk is a 20 cent vacuum hose. That was an expensive lesson.
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88 turbo Guards red Targa slant nose, and yes I am a horsepower junkie, 3.4liter,7.5 to 1 JE pistons, Adjustable WUR, Imagine fuel head, 1 bar waste gate headers,allthe cis toys. Now apart to become the next EFI monster. fabbing my own intake, headers Individual throttle bodies, MS-3, pauter rods, Xtreme twin plugged heads, gt-2 evo cams cop's. 2019 Silverado 6.2L |
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Join Date: Jul 2006
Location: S. Florida
Posts: 7,249
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True. The original fabric covered rubber vacuum lines eventually get brittle and crack easily if moved. The fabric covers the cracks that become vacuum leaks and you can't see the damage.
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Join Date: May 2005
Location: Loxahatchee, florida
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mine was the angled one on the boost conrtoller valve. It split at the track that was why i got that set of pistons and cyliders from you.
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88 turbo Guards red Targa slant nose, and yes I am a horsepower junkie, 3.4liter,7.5 to 1 JE pistons, Adjustable WUR, Imagine fuel head, 1 bar waste gate headers,allthe cis toys. Now apart to become the next EFI monster. fabbing my own intake, headers Individual throttle bodies, MS-3, pauter rods, Xtreme twin plugged heads, gt-2 evo cams cop's. 2019 Silverado 6.2L |
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Call me an idiot or wuss, but I actually turn it down to minimum at the track (.3bar) until I can reasonably drive the car 'fast' at that level. So far it's been plenty fast for me. I turn it up on the street for occasional fun moments.
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Kyle - 1980 RoW non-sunroof 911sc - 3.2 Turbo, Mahle P&C, Carrillo Rods, Megasquirt II (Fuel Only for now), re-geared 3rd and 4th 930 gearbox, 2350lbs |
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