Bend Angle Effect

Tomorrow I am going to install a a 3hz power Nafees water motor.

Now the problem is that the well is not very wide and the motor will fit after a lot of headache.

The plumber and the mason has told me that it will get install and gonna work.

Coming to the point:

For injecting the plastic pipe lengths in bore hole and to connect them to the motor I am having a pipe bend elbow or aka a bend of 90°.

Now I am thinking to reduce this 90° bend with a 45° bend.

Now if I use 45° instead of 90° just for making some space, than whats your opinion about performance?

Some people told me that may be it could tilt some pressure on the motor.

I want some space for motor to get it easily install.