I do believe the box with the knob is just the timing box. Do you have any lights on the box, if so it's a Powercard and does the fuel. If not it's might be an older kit and I don't remember what they used for fueling after they stopped using the AFPR.
Here are the latest kit directions talking about the Powercard http://www.supercharger.com/graphics/products/instructions/999-170.pdf Larry White Knight 1991 Crystal White #99 CSP Silver Bullet 1992 Silverstone #17 SM2 FM I+ Turbo Honey B 1992 Sunburst Yellow #99 SM2L JR Supercharger Whooosh 2004 Titanium Mazdaspeed MX-5 LowCountry Miata http://www.lowcountrymiataclub.net Masters Miata RAGS 074 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Chad J. Douglas Sent: Sunday, July 12, 2009 12:16 PM To: Ray Ayala Cc: Miata List Power Subject: Re: JR supercharger issues I saw no afpr under the hood. The box must be lengthening the inj% On Jul 12, 2009, at 12:15 PM, "Ray Ayala" <[email protected]> wrote: > AFPRs need to be rebuilt periodically, like carburetors. > > ----- Original Message ----- > From: "Larry Alster" <[email protected]> > To: "'Chad J. Douglas'" <[email protected]>; "'Miata List Power'" > <[email protected]> > Sent: Sunday, July 12, 2009 8:20 AM > Subject: RE: JR supercharger issues > > > What year car?? > > Janice's 92 with the JR has started to exhibit a symptom that I'm > not sure > about. > > It's running a AFPR/Pierburg pump with 1.8 injectors and a Bipes. > > Car has been fine for years but lately and it is getting worst the car > exhibits the following symptom. > > Idles fine > Cruises fine > Accelerates through boost fine with a gradual increase on the gas > pedal > Stumbles and then accelerates fine if you stomp the gas pedal to the > floor > from a cruise no boost condition > > Boost builds fine with no issues, reaches 6 psi boost okay, FP is > running > fine now that I changed the AFPR for one that actually worked. > > > > Larry > > White Knight 1991 Crystal White #99 CSP > Silver Bullet 1992 Silverstone #17 SM2 FM I+ Turbo > Honey B 1992 Sunburst Yellow #99 SM2L JR Supercharger > Whooosh 2004 Titanium Mazdaspeed MX-5 > > LowCountry Miata http://www.lowcountrymiataclub.net > Masters Miata > RAGS 074 > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Chad J. > Douglas > Sent: Sunday, July 12, 2009 10:00 AM > To: Miata List Power > Subject: JR supercharger issues > > > A friend has a hotside JR supercharger that was installed on the car > when she bought it. > > I am not really familiar with all the available JR goodies available, > so I'm not sure what all is installed. The SC has the standard pulley > and the car makes abou 5-7 pounds of boost. > > Behind the passenger seat is a brain box that has a vacuum line > feeding it and a knob. > > I'm trying to identify this hardware so I can get some documentation. > > The car recently began hesitating and missing in boost. I found that > the coil pack was loose and replaced the plugs and wires. The problem > persists but is greatly reduced. I even went with a 0.035 spark plug > gap when installing the new plugs and used a 5 heat range plug. > > Any ideas about what this hardware behind the seat is, or what to > check next? > _______________________________________________ > Miatapower mailing list > [email protected] > http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower > > _______________________________________________ > Miatapower mailing list > [email protected] > http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower > > _______________________________________________ > Miatapower mailing list > [email protected] > http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower _______________________________________________ Miatapower mailing list [email protected] http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower _______________________________________________ Miatapower mailing list [email protected] http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower
