Ok, first, I want to thank everyone that helped me with the smoking problem, now my engine runs great, and my tranny isn't using a quart of fluid every tank of gas.. (eeek)..
Question 1: Anyone know if the 210's ever had power Windows? If they did, what years?
Question 2: I've read the pro's and con's of the A15's.. I have an automatic, so my RPM's tend to stay really low, seems like an A15 would be the best bet for that. Is that right?
Oh, and would my A14 GX head work on the A15? :) Thanks.

For sure, the GX head will work on all A series engines. Personally, I have never seen power wondows on a 210. Check out a JC Whitney catalogug. They are full of accesssories for a
lot of cars and they do have aftermarket power window conversions. You can call them in Chicago for a catalog. They may be on line, I'm not sure.

Oh hey, that's a good idea.. I've seen their website before, I'll have to check it out from work tommorrow.. heh.. :) Thanks
for the info.

Hey rain master, you thanked us for the info and stated you corrected your smoking problem. You just didn't share with us what you did to correct the problem. Was it the
vacuum modulator on the auto tranny or a head gasket that needed retorquing or what?

Ooops, heh, yes, it was the vacuum modulator on the transmission, auto parts store had one in stock for $20.. It'll pay for itself in no time considering how much tranny fluid I
was burning.. :)
Still wondering.. Would an A15 be a good choice for more power with an automatic? Since I don't need to rev as high, seems like it'd be better than an A14..

I would say yes, the A15 would be better for an auto tranny 1200/210. Mine seems to have a little more lower end torque than my dad's similiarly equipped A14. An interesting experiment I
think would be to put a stock A12, A13, A14, and A15 all on a dyno with the same head/carb/exhaust to see how they compare. Then I would put the same performance parts on them to see which
ones have the greatest increases in power and torque, and at what RPM's. Then I would write and publish my own little book of "How To" on building 1200's. Although a stock A series can be
had for next to nothing, Dyno runs aren't cheap to mess around on. Naturally I think the A15 would have the greatest increases in power with everything you do to it.

-Andy

The 1200 I have now came with an automatic. In my past 28 year involvment with 1200's I have found that automatics are a lot faster. When I was stock with 4-speed A12 in sedan, other stock
auto's sedans would kick its ass. the stock sedan auto would top out at 97 MPH and my 4-speed was 94. Stock auto coupe was 107 and 4-speed was 102. the A15 stock in my coupe with 5-speed
would only pull 109. A stick may pull a bit faster off the line but the auto would quickly pass it and get a better top speed also. I would rather have the 80HP A14 motor as it will rev
quicker and higher than either the A12 or the A15 in their stock form. the long stroke of the A15 has more torque but it is low in HP. no matter what anyone says, with a long stroke 305 chevy
motor, there aint no way it will get the HP that a 283 would get. Of all f the 4 inch bore chevy motors, the shortest stroked one (302) was by far the fastest and quickest. The only reason
Datsun made the A15 was to get more torque to help pull the extra weight of the much heavier 210 models with less HP. If you can get hold of the 80 HP A14 motor, you will get quicker through
the gears and better top speed than any of the other stock motors. The 80 HP motors came in 1976 to 1978 B210's. The 1979 to 1982 A14 was 65 HP. I am not sure of the Hp of the A15 but it isnt
made for HP and that is for sure. It was made for torque. Gas milage will be best also with the A14 motor as you dont have to keep it floorboarded to go up hills. I live in Tennessee, USA and
there a lot of hills and mountains. My A12 was working hard to go up hill but the stock A14 made it easier.

Hey Mario,
Nismo may not have offered forged pistons for the A15 but they were and are still available. Also there are kits off the shelf in Japan for 1600cc engines. The main reason for Nismo not
offering them was that the L16 motor was their weapon of choice for the 1600 + class so there was no real reason to develop the A15. In fact Nissan fitted the L series motor into a sleightly
lengthened 1200 and called it the Excellent, but it was'nt it was plug ugly and with the heavy OHC it understeered like a pig. A friend has a twin cam A14 that was used in Japan in open
wheeler racing, they were also built as 1600s to run in the Formula Atlantic series. I agree about the short stroke concept about running higher revs. The 302 Chev is a good example but it to
was built to fit into a 5 litre class limit as was the mighty Boss 302 Mustang. I disagree that revs equal HP. Pro Stock drag cars are running huge 500cu in + engines in an effort to get them
down the strip faster. Myself and a number of Downunder Datsun racers have spent thousands developing big capacity A series motors and built with the right components can still rev happily to
9000 rpm.With a classes still running 1300 to 1600cc & 1600 to 2000cc the high Hp 1590cc Datto motor is popular. Horsepower around 170 HP is safely achievable.

You are talking only about stock A14 vs stock A15, right? If you were to build one, would yoyu choose the
A14 over th A15?

Dave Lum
www.datsuns.com

Sorry, Revs=HP. If that's not true, then why build a A-series to rev to 9000rpm?

Here's something simple to remember. Displacement=torque
RPM=Horsepower

Notice that a race A14 makes more HP than a street A14? Why? In very simple terms, because it can rev higher. Yes it has more lift/bigger carbs/bigger valves, etc, but that is so it can
spin higher efficiently, which is how you make more HP.

Yes Pro Stock drag cars are running 500 cu in + engines, but that's because they're going for more power than is possible with a smaller motor. A 350 Chev built to run to 7000rpm will
make more HP than a Chev 302 built to run to 7000rpm.

You may have heard this before, but an engine is just a big air pump. The more air you can get into/through it, the more power you will make.

If you would like to read a technical discussion, hit this link on my site ; http://www.datsuns.com/torquehp.htm.

I'l lbe happy to discuss this further if you wish, as this is a frequently misunderstood subject.

Dave Lum
'72 coupe getting SR20DET
'71 510 w/ VG30DE
www.datsuns.com