Alternate ECU's- my thoughts, your opinions? Options

[ottox914]

I'll be running the yellow car in DSP next season, and we (this forum) have got the suspension in line with "how much bar is to much bar". On to the engine. DSP needs a stock long block, but intake and exhaust systems are free. I've got a Kerry Hunter header and supertrapp exhaust on now. So- on to the intake system.

Was planning to use the existing intake system, as it is more budgetary, and more torque oriented. Maybe over the winter research and build new runners and central plenum. But how to control it all?

I've been waiting as patiently as possible for the KitCarlson system, but have had other thoughts of late. With the KC system, you need to set timing values, fuel values, develop a VE table, and so on. And at this point, its all closed loop. Sounds like alot of work.

Plan "B". Go to "aircooled.net" http://www.aircooled.net/new-bin/viewprodu...0007&cartid=and check out the safeguard system, as an ignition upgrade. Hook this up, and the timing is self adjusting for fuel quality, temp of intake air, height above/below sea level, etc. Then add a megasquirt, SDS, Haltech or other fuel only controller. Beg, borrow, steal a wideband O2 and let the timing self adjust, just keep dumping fuel till you get good O2 readings across the RPM range, and tuning is done.

Can it be that simple? Pros and Cons of each plan? Thoughts? Other ideas?

Thanks!

[airsix]

I did my PEFI conversion for $500, and while the tuning, wiring harness construction, and crank possition sensor fabrication were a little work - In the end I'd say it was worth it to ditch the D-jet. Why? Reliablility. I was fed-up with the upkeep on my D-jet. I had it in perfect tune. Then the TPS went out. Fixed that and the CHT sensor went out. Fixed that and the MPS went out. Fixed that and the trigger points went out. (IMG:style_emoticons/default/headbang.gif) D-jet is a good system. It works well. But after 30 years our parts are brittle, corroded, and worn out. Replacements parts are either expensive or NLA. Since it's time for new parts why not make them modern parts. The digital systems are really nice. Troubleshooting is MUCH EASIER because of all the feedback you get from your tuning software. Idle is smoother because of crank-triggered timing. Retune for new mods quickly and easily. And satisfy your inner geek.

-Ben M.