DIYEFI.org Forum

Lol you sound like my dad :P It's kinda because I have been thinking about making my own bell housings for different projects. Like I would really like to use my AX15 with that Yamaha motor when I get it ready, and use those in my pickup. If I have to make a bell housing, I may as well implement som...

This thread isn't dead. Now that the snow is melting, I have been pretty busy with the Mustang. My wife insisted that the be taken to a shop to have the motor we built dropped in. This jerks ripped us off really hard. They overcharged by a magnitude factor of 3, and to add insult to injury- we had t...

You actually got me thinking there. Sure would be nice to get away from fuel injectos that are 30 year old tech. I was just looking through Bosch's site (and on ebay to compare) their direct injection GDI injectors. Doesn't look like it would be all too difficult to drill a bung through a head. Thes...

I will stick my flag in this spot for this subject! Only Fred has the power to pull it up :P For my first weird and radical idea- I was just poking around Jameco and saw these pressure sensing resistors. The first thing I thought of was a way to measure torque. Imagine building a bellhousing that is...

This makes me think of injector drivers. Everything I look at brings me right back to the LM1949 ic. I have one of these. Is it the only/best way? You want the output to look like this __|\--__ Has anyone here made a good schematic that works well and doesn't fry the injectors without an injector ch...

Both crank and cam sensors are hall effect. I can't turn the engine while it's on the stand, the arms touch the flywheel. So I have to make that running stand before I can do anything.. All my steel is still buried in snow. It may be a week or so before I can continue. I have some other projects to ...

So.. You are planning to replicate the 'Jawhorse' by means of that old vise? Is that what this is about? What is the endgame of this endeavor? Also- that Rockwell looks tippy as hell. 3 legs? cheap... I'm trying to imagine what this tool was designed to accomplish. Perhaps building trusses? Kinda gi...

Cool reaction B) But I was thinking about my little CHP project which uses a single injector 3 cylinder Geo Metro engine. It turns a generator and creates heat, and that's all it's for. No need for a intensely engineered management scheme. Just something to fire an injector on time. However the Yama...

So I've been digging through the threads (And there are a hell load) and one thing I see common is people trying to redesign Fred's project :P The common things I have noticed are: Using a single line algorithm to control duration and advance of the injector pulse Using more IC hardware to spare MCU...

I have had these thoughts for years. When you look at a ECU fuel map in 3D or any other graphical way it definitely is a mathematical thing that could be defined with an algorithm. I've looked at some code for things that work, like the old Chrysler SMEC code and FreeEms which use a self adjusting m...