i was flicking through the old forums and noticed in the A15et or E15et topic that the A15 came turbo and injected. is this true? and if so where did it come from?

If you are talking about what would be better E15ET or A15ET ... that's "would be", not "is". There is no factory A15ET that we know of.

There was a factory A15E engine.

For the longest time I wanted to have the first A15ET that I knew of. I've gathered nearly all the parts to do it with the exception of just a few. Got the factory injection almost ready to bolt on, a IHI turbo, and an intercooler...but then changed my mind to go SR20 instead. I'm still planning on trying the A15ET in the future whenever I return to the US. Right now I'm just trying to get my 1200 resto'd and SR20'd. I would expect the A15ET with a properly sized turbo all setup nicely should be able to push 200 hp without probs...but then you're gonna have to toughen up the WHOLE engine a lot and that pushes the cost of such a project off the makes sense scale. Everyone knows boost is addictive and you're gonna want to keep pushing it up ...until something blows then it just gets to be a huge loss money and time wise. I'm not saying it's ridiculous to turbo and EFI the A series, just that it makes more sense to spend less on a nicer and faster engine that has a lot more potential (CA or SR).

-Andy

well i would go SR or CA if i had the cash but i dont so..... how reliable is the A15E and is it rare as rocking horse $hit or what?

btw if you read the last post rgrinder makes a comment obout the A series coming "turboed" and thats what i was enquiring about.

Ok, since I am a newb to the datsun world and owning the 1200 coupe, I have a question for ya, my experience is based on chev and ford where a small block is a small block with many parts interchangable. Are the A12, A13, A14, A15 engines all the same block with different bore and stroke plus periferals? thanks.

Quote:Yes, but more like Chev Big Block 366 vs 396.

The A12 and A13 were one block.
The A14 and A15 are 'tall blocks'

Bore & stroke differs, but otherwise they are pretty much the same. Check out the Tech Section here: Section 3. Engine

The block situation gets just a little bit more detailed, but here goes.

The first A12
had the distributor well foward, so we can call it A12- Block 1, & It has a 73mm bore. This is the original engine in Datsun 1200's & is a good robust design.
This A12 engine was a development of the earlier A10 engine, but with more stroke & 2 extra main bearings to make it a 5 bearing engine.

The next A12,
from the '74 model B210, had a redsign, & the distributor was moved back to the middle on the right, the altenator was moved to where the distributor was, the right side engine mount & the fuel pump were also moved back. This also necessitated a redsign of the right side pan rail, & to top it off, they changed the method of supplying oil to the rockers.
This engine can substitute for the early one with a small number of mods & just about everything inside the engine except the cam, is interchangeable. This is A12- Block 2. Same 73mm bore

The A12a
is a bigger bore engine [75mm] based on the A12- Block 2, so it interchanges directly with the A12- Block 2 engines.

The A13 engine
that i have seen is the same again as the A12- Block 2, but with an even bigger bore again [76mm] & this also interchanges directly with A12- Block 2 engines

Another A13
My workshop manual refers to an A13 with the small 73mm bore & the crank from the A14 model. I have never seen one, or corresponded with anyone who has, but i suspect that the cylinder block is a small bore version of the A14 block, described below. It is interchangeable with A12- Block 2 engines

A14.
This one used the 76mm bore but with more stroke so the block was made taller. Everything else is dimentionally interchangeable with the earlier A12- Block 2 engine, so it is a popular swap & it's a darned good engine.

A15.
This engine also used the 76mm bore, but with even more stroke. The block however remained the same as the A14 & the pistons had a wrist pin mounted higher up to accomodate the extra stroke. Everything else is basicly the same, so it too is a popular swap, although the A14 is more readily available around here. The A14 & A15 used the same block.

The early A12- Block 1 cylinder head [with the unique rocker oiling system] can be replaced with any of the later heads by performing a small mod to the later head to make the lube system compatible with the early block.