|Written by Peter|
|Monday, 24 November 2008|
I finally bit the bullet and installed Megasquirt. I couldn't be happier!!!
A big thanks goes out to Peter Florance of Va Beach, VA , and his expert assistance in tuning this setup. I can attest to his skills.
10/22/2008: Time go get started!
Here's the build sheet so far:
I purchased everything from DIYAutoTune.com over the course of a few months. Shipping was really fast and they are good for support on the build section. I bought the "Stimulator" a while ago. I have had quite a bit of soldering experience but I was still really surprised at how easy it went together.
I also decided to install EDIS and eliminate the distributor/TFI system. I purchased the EDIS bracket and wheel from pyropete on turboford.org, and the rest of the accessories I got off eBay. Total for all of this was around $200.
10/27/2008: Parts are in!!
Stimulator is assembled and Relay board is assembled. The actual "Megasquirt" board is getting there and I've confirmed communication with my laptop and uploaded the first round of software.
Everything is assembled and tested! It's so cool to have it sitting on our dining room table (in true MM fashion) blinking all sorts of LEDs that show injector banks, warm up enrichment, accel enrichment, etc.
11/5/2008: Cross your fingers!
Wow, what a project.
11/10/2008: Where's the spark?
We have spark!!!
11/16/2008: Time for some pictures!
Below are the pictures of the build so far. Keep scrolling down for videos of it idling and the dyno session!
11/16/2008: It Idles!!!
Finally got it started and idling. What a great sound!For a video of it idling, click here.
11/22/2008: Tuning and Dyno!
Once the car was idling we got a basic tune on it. We then started tuning it further and further with lots of test runs and analysis, until we could go full throttle at 13psi. This meant it was close, so it was time to take it to the dyno for some real tuning.
We went to Abacus Racing in Virginia Beach, VA. I was really impress with Rob and the crew there. Very professional and very knowledgeable. We did an hour's worth of runs. We gained about 45 horsepower just through tuning, and we hit our target that I needed to be classed correctly to race with GTS3 in NASA.
The goal was around 250 whp to be classed at the upper edge of GTS3. I thought for sure I’d have to go to 16psi to do that, but we nailed it with only 13psi! Air/Fuel and spark curves are all set to a safe point too. As a comparison, with the stock ECU, 13 pis yielded 208whp. The guys there felt confident that if I ran it at 18psi, which last time yielded 310whp, that I’d have close to 400 whp. Yikes! I think I should set up another map and put in an electronic boost controller!
Not really. I like running low boost because racing is so hard on an engine. It thrills me that I'll only be running 13psi for the 20-40 minute track sessions.
Here's the dyno sheet:
I'm thrilled. A quick drive in the car reveals a very noticeable increase in power. Until the tires warm up, I can only put it to the floor toward the end of 3rd gear. What a great feeling!
|Last Updated ( Monday, 24 November 2008 )|