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Juan Grande

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About Juan Grande

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    : Northern Virginia
  1. Moses, OK, I've decided to just do a 4.0L swap into my 4.2L YJ. Since the YJ will essentially be a Daily Driver, I'm not going the 4.6L stroker option. After analysis, it is more economical to simply source a used 4.0L engine with EFI than it is to retrofit MPI onto the 4.2L engine. As you might have guessed, my research shows that XJ 4.0L engines are more plentiful and cheaper than trying to find a 91-95 YJ 4.0L. My question: Can you point me towards any resources that show how to do an XJ 4.0L swap into a 4.2L YJ? I'm thinking a 92-95 XL engine (I have already found a 95 XL eng
  2. OK, I'm getting smarter by the day on this topic. Here is what I learned since Moses' response above. A good deal of my education came from a call to HESCO and some browsing on their forum site. The PCMs are no longer being manufactured. This is why HESCO no longer has the MPI Kit for Manual Transmission; they ran out of supply of the MTX PCM. They still have kits for ATX but they are running out of PCM for this application as well. You can still find MTX kits on the Internet but you can tell supplies are low. I would think this also explains why the price has gone up. I have
  3. Moses, many thanks for the quick reply. You mention above that the "Mopar EFI kit incudes a factory exhaust manifold (tubular) and EFI port injection intake assembly." My research on the Mopar kit doesn't show any exhaust/header components. How am I mis-interpreting you? My interest remains with the Mopar MPI. Yes, the cost has crept up. Also, it appears that suppliers are becoming sparse, especially for a manual transmission application. I'm curious if anyone has any experience of getting some/most of the components from the junk yard and completing this kit through Mopar, HESC
  4. Moses, I have an '87 Wrangler YJ that I'm looking to refurbish. I would like to replace the Carter BBD carbureted system. I have two questions: I have seen your articles on the Mopar MPI Conversion Kit and the MSD Atomic EFI kit. I'm leaning towards the Mopar kit but would like to see if you can provide a compare/contrast. My YJ will be much more of a Daily Driver with modest off road use. I would like to do a Cat Forward replacement at the same time that I upgrade to a new fuel system (I recently did a Muffler Back replacement). Do you suggest upgrading to a header appli
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