Megasquirt Project, .....IT RUNS ! Options

[Michelj13]

Hi,

Although I have been a member for a while (since I purchased my 914), I have not posted much. I still love my 914 and it's is interesting how this car drives like an absolute go-cart.

Anyway, my engine is a carbed 2270 that I built up with the help of many including Jake, and I am now embarking on a Megasquirt project. As many know, megasquirt is relatively inexpensive for a programmable FI system. I find, however, that there is too much information out there that it is nothing short of confusing. I want to share my progress so that at the end of the day, some may learn and may become less intimidated. Hopefully I will be successful....we'll see.

I have so many questions that I will post, along with some things that I have already learned. ANY and ALL comments appreciated.

I made a youtube video of my progress up to date. Enjoy!

http://www.youtube.com/watch?v=RoJfMZ9YgQc

Michel (IMG:style_emoticons/default/smile.gif)

[Michelj13]

I could not wait until tomorrow. I changed the advance to 10 degrees at 900 and 1200 and smoothed out the VE table. It started right up, but was a bit rough. I changed the injector pairing from 1-4, 2-3 to 1-3, 2-4 and idle got a lot smoother.

It got dark and looks like I ran out of gas again (IMG:style_emoticons/default/sad.gif)

I am starting to get a feel for it, but, the whole concept of VE and how it relates to fuel enrichment is not very clear to me. At idle (1000RPM), MAP was reading 80. and fuel load was 85%. I think VE was 65. Does this make sense?

I tought TS had a logger, but, could not find it.

[JamesM]

humm... I would think MAP should be a lot lower then 80, though the cam may have a lot to do with that. I just looked up the 9530 and jake states on his site that it is not compatable with ANY injection, stock or aftermarket. I also saw another ports where he recomends not using the 9530 on a 2270. Im not sure what affect this is going to have when tunning, might just make it more fun.

When you get to starting it up again check the AFR at idle try and get it adjusted down to around 12.8 (i have a feeling you are lean) Also maybe double check the actual timing with a timming light again. Let us know the MAP reading once this is done. I would hope to see the MAP reading down to at least 50 if not in the 30s.

Worst case i think if the cam doesent produce good vaccum is that you could switch over to alpha-n fueling. lets not jump there just yet though.

I could not wait until tomorrow. I changed the advance to 10 degrees at 900 and 1200 and smoothed out the VE table. It started right up, but was a bit rough. I changed the injector pairing from 1-4, 2-3 to 1-3, 2-4 and idle got a lot smoother.

It got dark and looks like I ran out of gas again (IMG:style_emoticons/default/sad.gif)

I am starting to get a feel for it, but, the whole concept of VE and how it relates to fuel enrichment is not very clear to me. At idle (1000RPM), MAP was reading 80. and fuel load was 85%. I think VE was 65. Does this make sense?

I tought TS had a logger, but, could not find it.