Geros?
The morry motor is a poor excuse for a motor and the Nissan A a big improvement
of a similar design.
If a starfire pushrod engine from a holden was a better engine than an A series
I would use it as they are 1.9 litres but the fact is they are not.

I like where this is heading from where someone left off and youve gone
all the way, great work.

not geros, Goes. rhymes with Bros and Hoes

the morry minor a-series aint a bad donk, but it was hindered by the typical british motor company reluctance to improve and innovate. there arent enough intake or exhaust ports on the head, the stroke was horribly long in comparison to the bore due to british tax at the time and it should have had 5 main bearings rather than three.

The nissan a-series engine was based on the first nissan e-series engine which were damn near a copy of the BMC a-series engine. The japs had a much better idea on how to make a good engine - thats for sure. Theres a mini with a 1380cc BMC lump with a twin cam BMW head, it makes around 170hp which is blardy amazing for a n/a 1.4L engine.

edit: here is a page that shows how similar the engines are: http://forum.ratsun.net/showthread.php?p=209747

hey mate im doin the same conversion, just wondering what are you using as you injection trigger

injection trigger? megasquirt will just pick up on the rpm. Im not using sequential injection so it doesnt really matter when the fuel is injected, as long as its injected once every two revolutions. It seems as though i can do it in two lots though, fire injectors one and three on the first revolution and 4 and 2 on the next revolution and alternate like that. benefits are the fuel rail pressure is more constant.

got any pictures or whatever of your mitsi efi set-up so far?

Batch firing of your injectors like that will work fine. This is how the original Bosch L-Jetronic EFI worked. Sure it's not as accurate as the sequential setups, but it's a hell of a lot easier to set up, and worked fine in a whole plethora of cars in the early 80's.

Good to see you're making rapid progress!

oh ok no worrys
heres a pic of mine same manifold just different plenum

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looks great!! how are you finding the angle of the two inner injectors, they dont really point in an ideal direction for the a15 ports. looks like you didnt have to grid as much off with the datsun headers, with my custom one for the morry minor they go out a lot further before they go down which made fitment trickier.

what computer? other engine specs? what power approx is it producing? its great to see another person's efforts to learn from

Some more goodies arrived today:




along with some more engine bearings and stuff. The block is in getting rebored currently and new cam bearings installed. I need a day off to organise a camshaft to be ground before xmas comes around!!! otherwise it will be mid January before i could get it all back together.

ive had a little trouble getting the megasquirt to talk to the computer but i finally had some success. I can now tune it although the base map i wont alter till its in the vehicle and running.

Camshaft was sent away today to get ground, another ground cam that i had there unfortunately had a badly chipped oil pump drive tooth so i wasnt game to take the risk of it jamming in future. Engine I should get back tomorrow from the machine shop all nicely bored and the pistons swapped over and new frost plugs and cam bearings so that will be all ready for assembly. A mate is going to skim the head to give it a nice new surface for the gasket to seal against.

for those engine assemblers, whats the best way to get the timing chain back on? i think i did it by taking the cam shaft cog off when i disassembled the engine. The last a series that i assembled i put a new chain on which had a joining link but the stock ones dont seem to have that so im not yet sure how i will do it.

lookin A+