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01-12-2013, 11:30 AM
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#1 |
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Registered User
Join Date: Jun 2011
Location: Douglassville PA
Posts: 82
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Supercharger
Having an issue on my weiand 177 I put it on the dyno yesterday to do some tuning and the vaccum secondaries are not opening at all. Put a lighter spring in checked for vaccum and couldn't find anything that would cause it. Any ideas as to what would be causing this?
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01-14-2013, 09:33 AM
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#2 |
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Registered User
Join Date: Mar 2005
Location: 10-Uh-See
Posts: 5,609
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Re: Supercharger
Is your carb setup for a supercharged application? The carb could be getting false readings or the check ball could be stuck. Personally, I switched to a mechanical secondary carb and am very pleased!!
Exactly what carb do you have?
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01-14-2013, 11:27 AM
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#3 |
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Registered Cruiser
Join Date: May 2002
Location: Las Vegas NV
Posts: 2,230
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Re: Supercharger
vacuum secondary's won't work under boost. They need vacuum.
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I intend to live forever. So far, so good. |
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01-14-2013, 12:17 PM
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#4 |
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Registered User
Join Date: Jun 2011
Location: Douglassville PA
Posts: 82
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Re: Supercharger
I just switched over to a 650 dp with mechanical secondaries seems alot more responsive than the 750 was hopefully get it tuned this friday, It did make 200 hp and 300 tq at the wheels at only 2500 rpm with only the primarys opening
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01-14-2013, 02:14 PM
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#5 | |
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Registered User
Join Date: Mar 2005
Location: 10-Uh-See
Posts: 5,609
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Re: Supercharger
Quote:
 Boost, the only replacement for displacement.  Can't wait to hear the numbers with the new carb.
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01-14-2013, 05:18 PM
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#6 | ||||
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"I ain't nobody, dork."
Join Date: Sep 2007
Location: Whidbey Island, Washington
Posts: 8,921
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Re: Supercharger
You HAVE to use a carb set up for a supercharger... or it just won't work right.
Gary
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'cuz chicks dig scars... My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread. The Rebuild of Creeping Death after the wreck Quote:
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02-02-2013, 11:04 AM
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#7 |
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Registered User
Join Date: Jun 2011
Location: Douglassville PA
Posts: 82
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Re: Supercharger
Tuning is done, only put down 300 rwhp and 360 ftlbs. thinking on a cam swap and going to long tubes. Any input on a good cam for the 327 its making 6 pounds of boost.
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