QUOTE(Mueller @ Dec 5 2017, 09:23 AM)
QUOTE(JamesM @ Dec 2 2017, 11:14 PM)
Go with the 8 foot harness.
Microsquirt is preferable to a full blown Megasquirt box in a 914 for a few reasons but mainly because its components are spec'd to be installed in an engine bay whereas the standard megasquirt box should be installed in the cabin or trunk.
If you want I can send you an "easy button" preferred parts shopping list that I have supplied to people. I was thinking about doing another build this winter so maybe ill get around to finally putting together a "how to" pictorial thread start to finish. That is if this other secret project I just picked up doesn't get in the way to much.
Bump for this list
Items I have so far:
GM air temp sensor
TPS (proper potentiometer TPS) however I thought I read about a better newer style TPS?
Innovate WB02 setup
2 Bar MAP sensor (not bought yet, still in my Amazon cart) currently N/A however might follow Marks low boost turbo design down the road.
Used Ford Yellow top 19lb injectors
Sorry I haven't been on in a while, to many projects. Received multiple DMs about this but haven't had time to respond to them, given the interest ill work on putting together an end to end how to thread as soon as I can get some time. Until then here is a short list of the major components that can be used regardless of your induction method. In order to give a complete parts list I would need to know if this is for a d-jet conversion or an independent throttle body setup.
May ways this can be done but this list is focused on using a Microsquirt ECU and what I have found to be the simplest way to go while being as affordable as possible.
So here we go....
First off the ECU itself
Microsquirt with 8ft base harness. The main connector is already in place and the wires color coded so all that is needed is end connectors to be sourced and components wires up - Currently ~$390
https://www.diyautotune.com/product/microsq...wiring-harness/For Ignition Input - this is my preferred crank trigger package . Very secure mounting and uses a Hall sensor that produces a very clean square wave - Currently $149
http://thedubshop.goodsie.com/type-4-crank-trigger-packageIgnition output - VW wasted spark coil (VW part 032905106B)
Genuine VW can be pretty pricey but aftermarket can be had for $20 new. This is a logic level coil so no ignition drivers are needed, the Microsquirt gets wired directly to it with 3 wires.
https://www.amazon.com/ECCPP-032905106-610-...n/dp/B00UA2YI4WDue to the nature of wasted spark systems they can be hard on spark plugs so i have been looking into a newer 4 channel logic level VW coil but as i haven't personally ran one yet I am not going to list it. I have used the coil above on multiple installs so that is what im listing for now. Its super easy and it works great.
MAP Sensor - Use the 1-bar Standard GM map sensor. The reason I recommend the 1 bar rather than the 2 or 3 bar is that it provides better resolution in a naturally aspirated application. Last ones I purchased at a FLAPS (every FLAPS should have them). You can find them pretty much anywhere from $15-$60
Lots of different part numbers,i don't have the exact ones I used handy but they are used on pretty much any non boosted injected GM car from the 80s and 90s. If you want to do real time barometric correction you will need 2 of these.
Identification guide
https://sites.google.com/site/sloppywiki/ev...-identificationhttp://www.rockauto.com/en/catalog/cadilla...p)+sensor,11207Those are the main components. Any other components you need (Wiring connectors, throttle position sensor, air temp sensor, head temp sensor, injectors) depend on what you plan on attaching the megasquirt to (existing d-jet, ITBs or whatever). The above are a starting point for all though.
When i get some time ill put together a how to thread that dives more into the specifics, but in the mean time here a are a couple of my favorite sources for neat stuff you might use:
https://reproparts.wazala.com/has lots of cool stuff but of specific importance are:
https://reproparts.wazala.com/products/pors...plug-connector/-Useful for wiring your harness to the stock relay board location for power and fuel pump relay
https://reproparts.wazala.com/products/d-je...e-plug-housing/https://reproparts.wazala.com/products/d-je...oot-grip-style/-Usefull if you want to use d-jet injectors
https://www.fiveomotorsport.com/a280-a380-h...e-fuel-injector-Brand new High-Z injectors(so you dont need a resistor pack) that fit the d-jet and l-jet intake runners and have locking connectors.
http://www.thedubshop.net/productsLots and lots of handy stuff depending on your application