Hey Rick, The short answer on bench-checking is yes, you can. You assemble the Megasquirt in a circuit-by-circuit basis. At the end of each section, there is a test procedure so that you know your work up until that point is correct. It's all covered in detail in the manual. Also, there is a seperate board called the Stimulator that can be plugged into a completed MegaSquirt. The Stimulator basically mimics the signals the various the sensors put out. If you buy a MegaSquirt, spend the few extra bucks for a Stimulator.
You're considering one those LT1 intakes, eh? I know there are folks who've done it successfully, but I guess I'd just like to see one in person. The upside is that LT1 setups are *cheap*. I'm not exactly sure why, but I saw several at Carlisle and on ebay for under 200, complete. I wasn't ready to try something like that for my first EFI project. I finished my engine harness last night. I need to install a fuseblock and fuses for the fuel pump, injectors, o2 sensor heater and I'm done electrically. Then I all I have left is the o2-sensor-bung into my header, and plumb the fuel system. I would be really happy if I can make it idle by Halloween. Hey Rick (or other TPI swappers), what did you use for a throttle cable? The carb one is way too short. Third-gen Camaro/Firebird? -Dave -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Rick Schaefer Sent: Sunday, October 24, 2004 10:42 AM To: The Chevelle Mailing List Subject: Re: [Chevelle-list] EFI update Sounding good Dave. Appears that you have a winner. Question - How do you know the Megasquirt is right?? Do they give a test procedure? Not doubting your work, just wondering if the MS can be "bench checked"? I'm still loking at a converted LT1 intake with megasquirt for my camaro. On Fri, 22 Oct 2004 07:22:49 -0400, Dave Studly <[EMAIL PROTECTED]> wrote: > It's more tedious than really hard. My soldering skills before the project > consisted of soldering some small wire leads to electric motors for remote > control cars when I was a kid. So, I was no expert. And I got my > MegaSquirt right the first time with no real problems. It did take me about > 10 hours to build, though. The manual that those folks put together is > outstanding, and if you read it thouroughly, you should have few, if any > problems. > > I have all the major components for this project and I'm still well under > $1000. (800 or so, I think). Not bad for fully programmable EFI from > scratch. > > -Dave > > > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Capt Crunch > Sent: Thursday, October 21, 2004 10:56 PM > To: [EMAIL PROTECTED] > Subject: RE: [Chevelle-list] EFI update > > Sounds like a nice project Dave. How was it putting everything together on > the Megasquirt? I have heard that it isn't a real joyful task. > > Mike > > >From: "Dave Studly" <[EMAIL PROTECTED]> > >Reply-To: The Chevelle Mailing List <[EMAIL PROTECTED]> > >To: "The Chevelle Mailing List" <[EMAIL PROTECTED]> > >Subject: [Chevelle-list] EFI update > >Date: Thu, 21 Oct 2004 22:42:57 -0400 > > > >Well, since the list is quiet, I'll post an update on my EFI conversion. > > > >I've got my MegaSquirt sitting on the transmission tunnel inside my car, > >and > >I wired up the power and RPM/vacuum inputs while the carb was still on to > >verify my power setup and that RPM was correct. Everything checked out. > > > >I yanked the Performer RPM/Holley 750 off Monday night. I mock-assembled > >my > >TPI unit and set it on the block and put the distributor back in so I could > >see how everything fit. Took a bunch of pictures along the way. Not much > >clearance using a large-cap HEI. > > > >Tonight I started trimming the wires on the harness to the right length and > >adding the sensor connectors in. If I ever do one of these again, I'm > >gonna > >buy a factory harness and modify it, as I think that would probably save a > >bunch of time. RPM, TPS, Coolant, and Inlet-Air-Temp connections are all > >done. I still need to hook up the injector harnesses I put together, but > >after mocking it up, I might decide to re-do those. They didn't turn out > >as > >good as I had hoped. I'm aiming to have an orgranized, compact, > >low-profile > >wiring package. > > > >Next step is to yank the intake base off and have a machine-shop correct > >the > >middle four bolt holes since I bought an 87-up base, instead of an 85-86. > >And then I need to finish porting the plenum. Note sure how far I'm gonna > >go with that. I'm at least cleaning up the ridge behind the throttle-body > >openings. > > > >I need to pull the passenger side header so I can put an O2-bung in there > >and then wire up that sensor. Hopefully I'll get to that this weekend. > > > >-Dave > > > > > > > > -- Rick Schaefer
