I for one will be eagerly awaiting that vid!

ill put it online tonight, might take a while as its a 720p HD video. Not long but large enough for a 64kbps connection! will update here as soon as its online

here we go: http://www.youtube.com/watch?v=uJ7iynNYzVo

Anyone have a rolling road i can use for free? Chances are pretty slim i think! I really need to be able to put some load on the engine without driving around to be able to get the engine tune a little better.

You have to tune it? If you use the stock Mitsu ECU, it should tune itself.

I thought datto_mog was using a megasquirt.

If you are, try the megasquirt forum, someone there may have done an engine similar to yours and you might be able to get their pressure, density volumetric efficiency charts. Pretty sure then you can just tweak the injector parameters to at least get some kind of baseline.

Then again you've probably already checked there.

yea im using megasquirt, the engine is miles apart from the mitsubishi unit, and besides the mitsubishi unit would be set up for 90 odd horses while I am after a few more. Ive now set it up on alternating injectors and it runs a lot nicer than all firing at once and that constant 'miss' that wasnt a miss has gone and the engine can rev now.

Overall it is running rich but im not sure just how rich and the 'accelerator pump' isnt set up yet because thats one of the final stages to be done. I think I am now ready to put an accelerator cable on it and go for some tuning runs around the block or should i say my private stretch of road ;)

Heres another vid of it running a lot better http://www.youtube.com/watch?v=i9i_fte_ScA

Ah, but that's the beauty of the OEM unit, it's not "set" but can adjust itself while running... until the injector cycle maxes out. So then people up the fuel pressure or the injector size.

but what are the chances of a economy orientated computer for a mitsubishi engine being suitable for a datsun a15 designed more for power? On the megasquirt manual they dont recommend swapping maps around even between identical setups because each and every car is different. The megasquirt is also self tuning if you so wish but its best to get it right without relying on that feature, then when you have it sorted activate the self tune and it doesnt need to adjust much at all.

Quote:

For a good ECU, the chances are very high. For example Ford EEC-V programmed for 205 HP 5-liter can run over 300HP without re-chipping. System with mass-airflow do pretty good, but even non-MAF can run it driveable.

Datsun EFI for the 2-liter has powered A14s & L16s pretty well without re-chipping.

But even so, a well tuned custom EFI controler can do it better.