a15 better, especially with out anti polution gear, woul dbe closer to 90 hp, especially with twin carbs or good webber and advanced timing

The differences come from the different rating methods used in the 70's.

The older SAE rating is done without any exhaust, accessories, or water pump.

The currrent "DIN" method is carried out with all accessories as it is run in the car.

The A15 is more powerful.

Hi Guys
I was looking up some specs to rebuild my A15 when i saw this. Is it true

A14 80hp@6000rpm 83@3600rpm(torque)
A15 69hp@5200rpm 80@3200rpm(torque)

I know the revs are differnt but not by much
if this is true the A14 is more powerfull