Quote:
ddgonzal wrote:
There was a 120Y GX?
My use of the name "120Y GX" was intended more as a description than as a model name for simplicity's sake.
The car itself would be a Sunny GX but I am not aware of any other factory model name that would distinguish it from the earlier 1200 GX which was also a Sunny.
None the less, I was refering to the A12T engine which I mentioned in the post with the 120Y GX name as a supporting descriptor.
This is the model that I refered to & this particular example had the A12T engine.
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Quote:
ddgonzal wrote:
For the "mild streeter" that the original poster asked about :
1. Cost. It will cost more to acquire the head, then more to get the manifold and carbs, then even more to add larger valves
2. Driveability. I prefer to keep the engine under 5000 RPM it lasts a long time. This is where the A15 head is good. Continually revving over that (where the GX head has an advantage) the rings in my engines have not lasted very long, like only two years.
I would agree with every word of this 100%
Shortened ring life in high reving engines is a fact that was brought home to me many many years ago which is one reason for my obsession for the overdrive auto trans & higher geared differential for my 1200 coupe.
I dearly love the 1200 engine in that car, but I love the extra 1/2" stroke of the A15 with its resultant increase in torque even more.
That should keep the revs down at highway cruise speeds with the resultant increse in engine life.
Smoooooooooth cruisin, now that's what I call motoring.
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