Zach's Carbs to Microsquirt conversion thread, 7/20/18 update |
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Zach's Carbs to Microsquirt conversion thread, 7/20/18 update |
VaccaRabite |
Oct 11 2011, 06:44 PM
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#1
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En Garde! Group: Admin Posts: 13,417 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region |
I am retrofitting this thread to be my full on conversion thread, documenting my change from dual 40 Webers to MSII fuel injection.
Here is what I have so far, and what I need: HAVE:
Built on 1.7 heads. Jake's 9530 cam (carb cam similar to Web 494) Mallory optical ignition ACCEL (UltraCoil) coil. SSI exchangers for exhaust. My goals for this project are to have near stock intake noise volume, better cold starting - especially in cooler weather, negate the bad effects or Ethanol on carbs, teach myself something about fuel injection. Since I already have a pretty good ignition system, I am not going to go after crank fired ignition at this time, but I am not ruling that out for the future. Before I begin the conversion, I am going to pull the engine and do a little refreshing and cleaning, including:
QUOTE I am getting ready to start my conversion form carbs to EFI. My goal is to use as much stock EQ as I can, but replace the sensors and such with modern, easy and cheaper to find stuff. Plus, since my car has a cam, the stock FI will not work. My engine has 1.7 4 bolt heads. 1) are the 1.7 and 1.8 intake runners the same? 2) Is the intake runner inside diameter smaller then the 2.0 intake runner ID? 3) is the throttle body for the 1.8 smaller then the throttle body for the 2.0? If the 1.8 TB is smaller then the 2.0, can the 2.0 TB be swapped in? Are 1.8 injectors high or low impedance? I am asking this as I will be able to get Joe's discarded 1.8 bits when he pulls his engine and starts going down the 2056 route. Zach |
VaccaRabite |
Aug 17 2012, 08:36 PM
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#2
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En Garde! Group: Admin Posts: 13,417 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region |
Okay, I've not updated this thread since November.
Could be I am maybe a bit embarrassed by my lack of getting-shit-doneness? So there has been a bit of a change of plans. I am going to be running McMark's Microsquirt setup. I fought with myself for nearly 6 months before admitting that having a setup that took the engineering out of this would be a much better way to go right now. Mark's system gets me crankfire ignition, coil on plug, a weather sealed MS box that can live in the engine bay, a pre-built wire harness, and a huge bit of cussing and experimenting taken out of the picture. The MSIIv3 box I have will go on the Jeep. Or I'll sell it. Dunno yet. I just put my Mallory Unilite system up for sale in the classified section. NO BACKSLIDING! Years ago I ran one of Chris's stainless fuel lines through the tunnel. For years I considered selling the return line. Almost gave it away twice. Glad I didn't. I was not looking forward to running it in, but tonight I did just that. While I had the tank out, I also pulled all the carb related fuel stuff out. One kinda scary thing... The fuel filter I put in ~2008 was clearly not intended for ethanol. It looked like this when I pulled it out. (IMG:http://www.914world.com/bbs2/uploads_offsite/farm9.staticflickr.com-1435-1345257398.1.jpg) The inlet and outlet were both deformed and degraded from the fuel. If you are using this type of filter - CHECK IT! Also, there was a LOT more rust in the tank then there was in 2008 when the tank went back in the car. Not nearly enough to be worried about, but enough that I was really surprised when I put a flashlight in and looked around. Stupid alcohol. Zach |
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