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Stoffregen Motorsports

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Status Replies posted by Stoffregen Motorsports

  1. Hi Stoffregen Motors!  Big Fan of your advice and I had a question,  after reading some of your posts.  I am building a 1979 l20b in a 620.  I have a genuine weber carb to put on it.  I am/have de-smogging everything.  I looked at my stock electronic distributor and it is corroded dirty ugly and the ring under the magnets it is broken.  I resigned myself to buying a new distributor.  Can't find em anywhere!  I called California Datsun and they said they were on national backorder.  So my question is, what should i do about the distributor, and any advice to get the most out of my weber carb upgrade?  Thanks!!  

    1. Stoffregen Motorsports

      Stoffregen Motorsports

      I wouldn't mess around with a rebuilt or new distributor. I would give a call to one of the Datsun engine guys (Rebello, Ermish, etc) and see if they have anything they can sell you. Or, have Jeff Schlemmer rebuild the one you have. He goes by jschlemmer here on Ratsun and has that blue 620 land speed racing truck.

       

      It would be better to rebuild an OEM unit than it would be to use some Chinese pile of crap.

       

      Good luck.

    2. (See 1 other reply to this status update)

  2. I'm thinking of incorporating a heat shield on my build. It's an L20B, and now has a Cannon intake with dual Webers. Just resourcing a smaller diameter b/booster for better fitment, air filter clearance is the issue here. Any ideas regarding which heat shield to use with said configuration?

    1. Stoffregen Motorsports

      Stoffregen Motorsports

      I don't believe anyone actually makes a heat shield for dual side drafts. I have made them in the past and they serve two functions: A - to isolate the carbs from the high heat of the exhaust just below. And B - to tie the carbs together when using a centerpull linkage (to avoid the single twisting linkage to cause them to go out of synch.)

       

      A - you can build it to isolate just the heat at the front of the carb opening or you can build it to curl under the carbs to keep the underside of the float chambers from getting hot.

       

      B - if you are using soft mounts between the carbs and intake (which I highly recommend) and a centerpull linkage, you will need to tie the carbs together somehow. The frontal heat shield kills two birds with one stone.

       

      I do have a template that was designed by Datsun Comp back in the day, and I have used it to build many heat shields, but it does not fit all manifold configurations. And there are no mounting provisions on most intakes, so mounting the shield gets tricky. Back then, they simply used springs wrapped around the intake runners to tie it to the intake. We also sandwiched a sheet of asbestos cloth in between two sheets to help further isolate the carbs from the heat. That worked really well.

       

      Hope this helps. Good luck.

       

      Matt

    2. (See 2 other replies to this status update)

  3. Hey there.

     

    My personal email is stoffregenmotorsports@gmail.com. Phone: 530-392-8032.

     

    Thanks,

     

    Matt

    1. Stoffregen Motorsports

      Stoffregen Motorsports

      Keep me in mind. I'd love to get my hands on a Datsun/Nissan truck.

       

      Matt

    2. (See 3 other replies to this status update)

  4. Hey there.

     

    My personal email is stoffregenmotorsports@gmail.com. Phone: 530-392-8032.

     

    Thanks,

     

    Matt

    1. Stoffregen Motorsports

      Stoffregen Motorsports

      Sure. Let me know what you'd like to do and when you're thinking of doing it. I am booked about  a year out right now.

       

      Matt

    2. (See 3 other replies to this status update)

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